What should I do if it returns "unauthorized" when I run the hdc list targets command to query device information during wireless debugging of the watch?

What should I do if the hdc cannot access the device after installing the VPN software astrill?

What should I do if "FreeChannelContinue handle->data is nullptr" is displayed after a command is executed in hdc?

What should I do if the hdc cannot connect to the MacBook (ARM chip)?

What should I do if the error message "command not found: hdc" is displayed after running the hdc list targets command in the toolchains directory of the SDK?

What should I do if it fails to install bundle using hdc?

What should I do if the hdc command cannot be executed when Linux 18.04 is installed for the first time?

What should I do if the device connection status can be viewed by running the hdc shell command, but the DevEco Studio connection status flickers and shows no device?

What should I do if an error message "hdc server port XXXX has been used" is displayed during hdc debugging and switching ports has no effect?

What should I do if the hdc list targets command output is displayed slowly?

Why are HAR packages generated after HSP packaging? Do they increase the application package size?

What measures are taken to ensure code security from the perspective of package management?

What is the relationship between App Pack, HAP, HAR , and HSP?

How do I reference an externally compiled .so library file in a HAR or HSP?

Can I declare abilities or extensionAbilities in the SharedLibrary (HSP) configuration file?

How do I add pages into a window functioning as a toast in a HAR?

How do I enable a service module HAR to obtain data from the host HAP?

How do I install an App Pack using commands?

How do I determine whether an application can be uninstalled?

Do the HAR and HSP support ability or page declarations?

Does the HAR support cyclic dependency?

Is dependency transfer supported? For example, can a HAP call the APIs provided by HAR B if it depends on HAR A, which in turn depends on HAR B?

How do I fix the "Resource id invalid" error reported when calling resourceManager.getStringResource?

What is the relationship between HAP, HAR, and HSP? Can I declare abilities and pages in them? What are the recommended use scenarios for each of them?

How do I reference a HAR or HSP?

How do I distinguish HARs from HSPs in a decomposed HAP package?

What is the level of the context obtained by calling the createModuleContext API in the HAP?

How do I obtain the bundle name of the current HAP?

How do I implement modular code management and cross-module routing without using a UIAbility?

When classes are exported from an HSP, are TypeScript files exported as .d.ts or .d.ets?

How do I avoid unexpected data, configuration, or information security risks that may arise from files under the module being packaged into a HAR file?

How do I upload a HAR under multiple accounts?

What is the purpose of the .har file generated after an HSP is compiled?

How do I unify HSP version numbers?

How do I package multiple HAPs from different projects into a single App Pack?

Is there a limit on the number of HSPs that can be referenced in a HAP?

How do I convert a HAR to an HSP?

Does the HAR support transitive dependencies?

How do I implement cross-module page navigation?

How do I uninstall a debug package?

How do I resolve dependency version conflicts?

Why does the installation fail if the vendor parameters of HSP files in the same App Pack are different?

How can two HSPs use each other's components without depending on each other?

How do I install a HAP on a device?

What are the main use scenarios of HARs and HSPs?

How do I convert an HSP into a HAR?

Is the bm quickfix command recommended for creating a quick fix file?

What should I do when the error message "INSTALL_FAILED_APP_SOURCE_NOT_TRUSTED" is displayed while the hdc command is used to install a release HAP package on the device?

How do I query the bundle name, vendor, version, installation time, update time, and others of an application package?

How do I Install an APP file? Is there any command available for the installation?

What are the restrictions for installation-free applications, how do I interpret related fields, and how do I carry out a self-test?

What should I do when the message "failed to install bundle. install debug type not same" is displayed during HAP installation?

Is there any other way to download and install HAP packages besides AppGallery?

How do I determine whether the current application is a debug package or a release package?

How does an application check whether another application is installed?

How do I access files in the rawfile Directory across HSPs?

How do I obtain the signature fingerprint information (.p12 file) of an application package?

What should I do if cpp crash is logged with error "resolveBufferCallback get buffer failed" when multiple HSPs are loaded?

What data format does "--BEGIN CERTIFICATE--" stand for in the HAP file?

Are there any differences between signed and unsigned packages?

How do I share an HSP in an application?

How do I obtain the packaging time of the HAP file through code?

How do I obtain a notification when the device screen orientation changes?

How do I use the lifecycle functions of AbilityStage?

How do I configure not to retain mission snapshots in Recents after terminateSelf() is called for a UIAbility?

How do I exit an application?

What should I do when the error message "Failure[INSTALL_FAILED_SIZE_TOO_LARGE] error while deploying hap" is displayed during the HAP deployment?

How do I obtain the cache directory of the current application?

How do I obtain the temp and files paths at the application level?

In which ArkTS file is the lifecycle callback function of the EntryFormAbility invoked?

What should I do when an error is reported during the call of startAbility() for a multi-module application?

Does a time-consuming background operation of a UIAbility affect the onForeground lifecycle of another UIAbility?

How are the processes of an application started?

Are third-party applications allowed to fork processes on mobile phones?

What methods can be used to transmit data between two UIAbility components?

Does a crash of an ExtensionAbility process cause a crash of the main process?

Do multiple UIAbility components run in one or more processes? Can a third-party application run in multiple processes? Will the running of child processes be affected when the main process ends?

How does an ExtensionAbility communicate with the main process?

How do I subscribe to the lifecycle changes of a UIAbility instance on a page?

When are the onUnhandledException and onException callbacks triggered?

Can EventHub be used in TaskPool?

Does the hdc shell command support schema URI simulation redirection?

Can a UIAbility be started using ApplicationContext?

What are the differences between the stage model and the FA model in intra-process object sharing?

How do I call an installed application to open specific files?

How do I start a browser application?

Can a custom transition animation be used during a UIAbility migration?

What are the differences between the UIAbility and UIExtensionAbility? What are their use scenarios?

What is the relationship between the UIAbility, page, and component? How do I use them?

What are the use scenarios of Emitter and EventHub?

How do I disable the full-screen display of a window?

How do I obtain the application version number, version name, and screen resolution?

How do I obtain the ability information of specified bundle flags?

How do I obtain the UIAbilityContext of a UIAbility, page, or component?

How do I obtain the context in a utility class?

What are the differences between ApplicationContext, UIAbilityContext, and Context?

What should I do when error message 401"The context must be a valid Context" is reported during the use of UIAbilityContext?

What are the relationships between applications, atomic services, and service widgets?

What are the differences between system applications, third-party applications, and pre-installed applications?

How do I set the default language and application name to Chinese?

How do I query the PID of an application process?

How do I deploy .so files in the debugging and release phases with code signature enabled?

What are the differences between the app.json5 file and the project-level build-profile.json5 file?

What are the account requirements for hopping?

How do I enable the permission request dialog box to automatically display during application launch?

How do I determine whether an application is running in the background if it has multiple UIAbility components?

What are the impacts on an application when developing non-UI features using TypeScript instead of ETS in terms of memory, CPU, and hap size?

How do I determine the initiator of an application?

How do I obtain the UIAbility name of the current application?

How do I check whether an application is running in the foreground or background?

How do I set an application to automatically restart?

How do I obtain the list of applications installed on a device?

Will the UIAbility be reclaimed when the memory is insufficient? If reclaimed, can it be restored through the page stack?

How do I obtain files in the rawfile directory through ResourceManager?

Does HarmonyOS restrict an application process from forking subprocesses? Does it allow executable files in applications to run (fork+exec) and read their own processes in ptrace mode? Will this method be restricted in the future?

What are the differences between the two page loading modes provided by HarmonyOS?

How do I access the system application Files?

Is the HarmonyOS NEXT system in big-endian or little-endian mode?

What are the relationships between UIContext, Ability, and UIAbilityContext?

How do I create a background task in the stage model?

How does an application continue to provide services after switching to the background?

How do I apply for multiple continuous tasks?

What are the process resource usage specifications during application running?

How do I check whether the WorkSchedulerExtensionAbility callbacks onWorkStart and onWorkStop are correctly implemented?

How do I query system logs related to transient tasks, continuous tasks, deferred tasks, and agent-powered reminders in background tasks?

Can data be returned asynchronously in Inter-Process Communication (IPC)?

How do I redirect to a specific page by tapping a service widget?

What are the differences between atomic services and service widgets?

What is the relationship between ArkTS, ArkUI framework, and HarmonyOS SDK/API?

What should I do when a crash occurs after I convert a JSON string obtained from rawfile into an object and call the instance method?

How do I use regular expressions?

How do I generate a random UUID?

Does ArkTS provide a method similar to System.arraycopy in Java?

Should I change the file name extension of all ArkTS files to .ets?

Where is the .abc file generated after the build?

What are the differences between ArkTS and TS files?

How do I implement string encoding and decoding?

How do I generate a UUID string?

What are the common attributes to be used and how do I implement the APIs when using Node-APIs to extend TS APIs?

How is a raw file read by the thread created by pthread?

What is the memory sharing principle of a sendable class object of ArkTS?

How do I implement synchronous method calls in ArkTS as easily as using synchronized in Java methods?

Do ArkTS APIs support overloading?

How do I convert the implementation in the Java-like thread model (memory sharing) to the implementation in the ArkTS thread model (memory isolation)?

Where can I find the libc++ library? Is it packed into an HAP?

What is the product of the AOT compilation mode and what are .ap, .an, and .ai files?

What are the differences between .ets and .ts files and how do I call methods defined in the files?

What should I do since globalThis cannot be used in ArkTS?

What are typical scenarios and usage of this in ArkTS?

How do I access static variables and methods of a class?

How do I merge two objects?

How do I Implement a capability similar to Java reflection?

Is the underlying running environment of ArkTS code self-developed or open-sourced (such as v8 or jscore)? Is the same running environment reused for React Native code?

What data type conversion methods are used in ArkTS?

Is it possible for developers to manage the number of threads?

Is dynamic module loading supported? How do I implement it?

How do I implement Aspect-Oriented Programming (AOP)?

How do I use the AOP API to implement repeated instrumentation or replacement?

How can I determine whether instrumentation or replacement can be performed on an API?

How do I parse a JSON string as an instance object?

How do I use runtime annotation in ArkTS?

How do I use a custom decorator in ArkTS?

Does ArkTS support destructing?

Can ArkTS files be loaded in TS files? Is the use of TS be restricted?

Is ArkTS capable of using reflection to call static and instance member functions of a class?

How do I obtain elements in an ArrayList using indexes?

How do I convert a map into a JSON string?

How do I obtain the class name of an object?

How do I convert a JSON object into a HashMap?

How do I convert an ArrayBuffer to a string?

How do I convert the Uint8Array type to the string or hexadecimal type?

How do I perform Base64 encoding?

What are the differences between object assignment and deep/shallow copy?

Does ArkTS support multiple inheritance?

Does ArkTS support intersection types?

Does ArkTS support anonymous classes?

How do I use Record?

How do I use AOP to count the method execution time?

How do I generate the setter and getter methods of a class?

How do I convert the sendable type to JSON data?

How do I handle big integers?

How do I implement different code logic based on the passed-in parameter type of a function?

How do I use the tool library to parse and generate JSON format?

Will memory leakage occur when A holds B while B references A?

How do I obtain object values by key?

What is the loading process of ModuleManager?

How do I view the detailed build process?

How do I traverse JSON objects?

How do I determine the type of an object?

How do I use Reflect to correctly bind the this pointer in ArkTS?

Where is the mapping file of code obfuscation?

How do I obtain all methods of an object?

How do I use the built-in JavaScript engine? What is the JIT support policy?

How do I use closures in ArkTS?

Can static and instance member functions of a class be invoked through dynamic import in runtime reflection?

How do I obtain environment variable information?

How do I obtain the CPU usage time of an application process?

How do I specify some attributes of an object for serialization?

What do I do if the precision of the number type is lost during object deserialization?

What is the maximum length of an array?

Does ArkTS use an asynchronous I/O model similar to Node.js?

Do I/O intensive tasks like network requests need to be processed by multiple threads?

Does the @ohos.net.http module need to use TaskPool for handling tasks?

How do I troubleshoot initialization errors at runtime caused by inter-module circular dependencies?

What should I do when there is no error log about compilation exceptions?

How is a callback function defined in ArkTS?

How does this of a function in an object point to the outer layer?

How do I implement anonymous inner classes?

How do I define an object with any key?

How do I implement interface methods at the call site?

What are the ArkTS type conversion methods other than as?

How do I export the default export object in Index.ets?

Does ArkTS allow the calling of methods in JavaScript files?

Can I obtain the AST syntax tree of the .ets file in the compilation phase?

What should I do if the application fails to initialize the class instance through object literals, and how do I solve the problem?

How do I process special characters during URL encoding?

What are the use cases of ArkTS custom annotations?

How can I create a thread?

How do I design a concurrency scheme to support a large number of threads?

How do I set task priorities?

Will performance be compromised by inter-thread communication of JS objects that depends on serialization?

What are the similarities and differences between TaskPool and Worker?

Do Worker and TaskPool limit the number of threads?

How is the processing result of a C++ thread created by a JS thread using NAPI returned to the JS thread?

What is the multithreading model of the system?

Can context be transferred across threads?

How do I implement secure access to the same shared memory in multithreaded concurrency scenarios?

Which has a higher priority, the main thread or child thread? What are their task execution policies?

How do worker threads and TaskPool threads communicate with the host thread in ArkTS?

Does ArkTS support multithreading development using a Java-like shared memory model?

What is the thread mechanism of ArkTS? Is each thread a separate JS engine? If a thread has relatively low overhead, why is the number of threads limited?

How does the TaskPool communicate with the main thread during task execution? How do I implement simultaneous access to the same memory variable?

Are multithreading operations on the preferences and databases thread-safe?

If most background tasks (computing, tracking, and storage) in ArkTS use asynchronous concurrency mode, will the main thread respond more slowly and finally cause frame freezing and frame loss?

Will the main thread be blocked if await is used in the main thread of ArkTS?

Can I dynamically load modules (HAR, HSP, and SO) in TaskPool?

How do I implement memory sharing in a TaskPool thread?

Can an application manage the background I/O task pool? Is any open API provided for management?

How do I fully utilize the device performance with a limited number of threads?

How do I implement memory sharing in a worker thread?

How do I determine whether the calling thread is the main thread?

How do I perform instrumentation and replacement on asynchronous methods?

How do I implement multiple Worker instances in ArkTS?

How do I use TaskPool to call object member functions in a subthread?

How do I enable multi-level subthreads in Worker?

How do I obtain the context of TaskPool and Worker?

Does it support #include and std::pmr::vector?

What should I do if a performance dip occurs while obtaining the length of the string passed from ArkTS on the native side?

What should I do if the string passed from ArkTS is truncated on the native side?

How do I export APIs from multiple C++ source files?

How do I dynamically load a .so library in ArkTS and C/C++ at runtime?

How do I integrate a third-party .so library in C/C++?

How do I exchange map data between ArkTS and native?

How do I export custom C++ classes and call their APIs in ArkTS?

How do I change the C++ version supported by a project?

How do I obtain the screen brightness on the native side?

How do I write a temporary file to the user directory in native code?

How do I add the debug declaration in native code?

How do I distinguish the ArrayBuffer and Uint8Array objects created by ArkTS in native code?

How do I encapsulate native functions into a class and export the class to ArkTS for use?

How do I obtain information printed by printf in native code?

How do I obtain the ArkTS application bundle name on the native side?

How do I invoke ArkTS system capabilities on the native side?

How do I use the ArkTS asynchronous APIs defined by the system from the native side?

How do I use ArkTS APIs of other modules from the native side?

How do I import a third-party library in ArkTS?

How do I access raw file resources of an application from the native side?

How do I access resources across modules from the native side?

How do I obtain the application version information on the native side?

How do I bind the data of an ArkTS object and the data of a native object?

How is env obtained when a callback is executed by Node-API?

How do I call ArkTS APIs from the native side (using C/C++)?

How do I integrate the third-party library curl and use it to send HTTP data requests?

How do I use the third-party library AKI to implement cross-language calls between ArkTS and C/C++?

How do I use other third-party libraries in a native project?

How do I use HiLog to print log information on the native side?

How do I use SO libraries of the so.x.y type, for example, libxxx.so.3.1 and libxxx.so.3.1.0?

What is the napi_module struct?

How do I obtain an operable file directory on the native side?

How do I use the .so library functions in an existing project for a new project?

How do I modify a native KV pair in ArkTS and pass the new value to the native side?

How Do I obtain an object and its member variables from ArkTS on the native side?

How do I correctly set the header file path in the CMakeLists.txt file?

How do I import the header file deviceinfo.h on the native side?

How do I create an ArkTS object on the native side?

Where is the name of the .so library generated in the native C++ template defined, and which parameters must match the module name?

How do I print the char pointer in native code?

How do I persist an object created in C++ (for example, by using napi_create_object) or a JS value to be passed as a parameter? How do I implement automatic increment and decrement of the reference count?

How do I display logs of different levels during CMake compilation?

How do I release a C++ object wrapped in an ArkTS object?

How do I obtain an ArkTS Uint8array instance on the native side?

How do I obtain an ArkTS class instance on the native side?

How do I call C++ APIs across HAP modules?

How do I specify the target OS architecture during HarmonyOS build?

How do I reference the object created by napi_create_buffer in ArkTS?

How do I use the char pointer to construct an ArrayBuffer on the native side?

How do I obtain the module version information from the CMakeLists file?

How do I declare the custom type object passed to the native side in the index.d.ts file?

How do I modify the object data and properties passed from ArkTS on the native side?

How do I export native APIs from multiple xxx.d.ts files?

How do I listen for native log information from ArkTS?

What should I observe when using napi_run_script_path() to execute the abc files in a package?

How do I use network functions via C APIs?

How do I implement HashMap conversion between ArkTS and C/C++?

In addition to pending exceptions, are there any other exceptions when napi_call_function is called?

Can native APIs be exported from an HSP or HAR? If not, is there any other alternative solution?

What should I do if multiple SO libraries depend on each other?

How do I use the .so file built from another module in a module?

Why cannot napi_env be cached?

How do I manage C++ objects in ArkTS?

How do I ensure the application compatibility if the libc++ version of the HAR is different from that of the project?

How do I open a file on in C/C++?

How do I manage the object lifecycle on the native side?

Does C/C++ provide the OpenSSL library?

How do I release an ArkTS object on the native side?

How do I directly call ArkTS APIs in a C++ child thread on the native side without triggering callbacks on the ArkTS side?

Thread-related questions when the ArkTS layer invokes native layer interfaces

How do I trigger ArkTS callbacks in a C++ subthread since there is a restriction for the native thread to obtain env?

How do I invoke a function transferred from ArkTS in a C++ subthread?

How do I call ArkTS asynchronous APIs on the native side and return asynchronous computation results to the native side?

What is the thread relationship between native code and ArkTS code, and are there any restrictions on the thread usage?

Are napi_env and napi_value instances shared across Worker threads?

How do I create a subthread on the native side? What are the restrictions? How does the native subthread communicate with the main thread?

How do I use a Worker thread to call NAPIs to rewrite variables in a loop?

Does napi_env on the native side support delayed or asynchronous calls?

How do I manage the JSVM_CallbackStruct lifecycle?

What should I do if "error: unknown type name '_Bool'" is reported during the compilation of an HAP project?

What should I do if OOM (v8::FatalProcessOutOfMemory) occurs?

How do I use OH_JSVM_GetValueStringUtf8 to obtain a string?

What do I do if the application crashes when JS code is executed in Finalizer()?

What should I do if an application exits due to memory exceptions of the member variable (array_buffer_allocator_) in the VM when OH_JSVM_CreateVM is called by multiple threads during application running?

How do I mitigate the aliasing issue when scaling an image loaded by the Image component?

How do I throttle gesture events, for example, disallowing repeated trigger of click events within 500 ms? How do I perform unified throttling on multiple gestures?

How do I implement screenshot prevention?

How do I obtain the coordinates of touch points in a long press gesture callback?

How do I customize the Tabs navigation bar and its alignment mode?

How do I implement exposure tracking in a scrollable container component?

How do I set different attributes for UI components under different scenarios?

How do I return parameters when navigating pages with Navigation?

How does the TextInput component obtain focus?

How do I set the start position of the cursor at the upper left corner in the RichEditor component?

How do I keep the layout unchanged after the soft keyboard pops up?

How do I enable the indicator to slide along with the tab navigation bar when switching tabs?

How do I resolve the nested scrolling conflicts between the Web and List components?

How do I resolve the scrolling conflict with two layers of Tabs components?

How do I remove focus from a component?

How do I load and use custom fonts?

How do I implement a mixed text and image layout?

How do I implement the pin-to-top or pin-to-bottom effect for list item groups?

How do I resolve the issue of the List component not scrolling to the bottom without setting a height?

How do I implement a multi-column layout using the List component?

How do I set the corner radius and spacing for a list item group?

How do I obtain the visibility of UI components?

How do I implement slot-like functionality?

What should I do if the margin does not take effect after a child component is displayed in full screen?

How do I use PanGesture or SwipeGesture to implement the inertial scrolling effect of a custom component?

How do I listen for orientation status changes of the device screen? How do I enable the window to rotate with the device?

How do I customize event transfer between parent and child components to, for example, resolve scrolling conflicts?

What should I do if the UI does not refresh with ForEach and LazyForEach when the data source is changed?

How do I control UI re-rendering for the Canvas component?

How do I adjust the position of specific UI components when the keyboard pops up without affecting the overall layout?

What parameter types and unit types do components support? When are they used?

How does the Text component load Unicode characters?

How do I register custom fonts? How do I obtain font resources from the storage path?

Does AppStorage allow for object sharing between threads? If not, what is the recommended alternative?

How do I track component data or state in the build process of custom components? For example, how do I add log tracking for state variables in the build?

How do I make content move up when the keyboard pops up, instead of the entire page moving up?

How do I move the bottom layout up to the top of the keyboard when the text box brings up the keyboard?

How do I apply a linear gradient blur effect to images?

How do I remove the fade-out effect on both ends of the Tabs components?

How do I obtain the text width in the Text component?

Do I need to set a default height for custom components?

Why do custom dialog boxes fail to enter the onPageShow method?

What should I do if large icons set for the toolbar in the Navigation component are clipped?

How do I use bindContextMenu for the Image component?

What is the controlButton attribute of the SideBarContainer component used for? How do I set it?

How do I listen for screen rotation?

How do I set window rotation?

How does a component synchronize state with its grandchild components?

How do I clear the content of the TextInput and TextArea components with one click?

How do I set the position of a custom dialog box?

What is the function of the gridCount parameter in the custom dialog box (CustomDialog)?

How do I customize the eye icon for the password input mode of the TextInput component?

How do I use the onSubmit event of the TextInput component?

How do I set the caret position to the start point for when the TextInput component obtains focus?

How do I obtain the attribute information of a component?

How do I obtain the current scrolling offset of a scrollable component?

How do I align text vertically?

How do I customize the font color and size for text in the TimePicker component?

What should I do if the constraintSize settings fail to take effect?

How do I set the background color to transparent?

How do I customize the control bar style of the Video component?

How do I set state-specific styles for a component?

How do I implement a text box that automatically brings up the soft keyboard when it obtains focus?

How do I display different types of data by group in a List component?

Does $r support nested resource access?

How do I set a gradient background color for the Button component?

What should I do if the soft keyboard obscures the content on scrollable pages, preventing upward scrolling?

How do I set the TextInput component to accept only certain characters?

How do I resize a floating window based on the component's content size?

How do I set multiple columns for the List component?

How do I set the style of the divider that distinguishes the tab bar from the tab content in a Tabs component?

Why can the content in the RichText component be scrolled?

How do I set the List component to have no bounce effect when scrolling to the edges?

How do I reduce the aliasing effect on images?

How do I implement multi-line input?

Does the Text component support setting font styles by segment?

How do I change the font color for the status bar?

How do I set the text box to select all text when the dialog box is displayed?

Why is the height of blank lines inconsistent with the font height?

How do I set the text box to select all text when it has characters entered?

Why does the color: 'rgba(0, 0, 255, .5)' settings fail to take effect?

How do I change the background color of the TextInput component in pressed state?

How do I set the maximum and minimum widths and heights for a component?

How do I set the background color for the XComponent component?

How do I apply a blur effect to a component?

What is the baseline in vp for UI layouts to achieve cross-device adaptation?

How do I get and set the screen brightness?

Can the hover effect be customized for TextInput?

How do I remove the fade effect displayed when swiping to the edges of a tab bar?

How do I implement a nested scrolling effect with two levels of Tabs components?

Can the scrollbar of the Grid component be customized?

How do I set the gradient effect for both ends of the List component?

How do I scroll long text?

How do I set XComponent to transparent?

How do I control the fixed height of a sheet transition?

How do I implement a placeholder animation for item dragging in a Grid component?

How do I concatenate string variables in ArkUI?

How is the real-time background blur be implemented for swiping down to reveal the Control Panel?

How do I obtain the width and height of an image?

How do I resolve the issue of the page header being truncated when the keyboard pops up in a web page within a dialog box?

How do I hide the navigation bar in the Navigation component?

How do I set the width of a child component so that it does not exceed the size of its parent component?

What should I do if the Image or ImageSpan component would not load an image when a string-type path is passed?

How does the Image component read an image from the sandbox?

How do I implement event passing through?

How do I determine whether text is truncated after setting maxLines for a Text component?

How do I achieve an effect similar to CSS keyframes?

Can an external Stack container adapt to the styles such as rounded corners of the internal container components?

How do I resolve the issue of Alignment.Bottom not taking effect in the Stack layout?

Does the layout support capabilities similar to calc(100vh - 100px) in CSS?

How do I obtain the parameters passed by router.back?

What should I do if the onBlur and onFocus callbacks cannot be triggered?

How do I disable the scroll event of a Grid component nested in the Scroll component?

How do I enable a component to rotate continuously?

How do I scroll a list with the keyboard displayed?

Why doesn't pressing Enter trigger a click event when the focus is on a keyboard-navigated object?

How do I block event bubbling when a button is nested in multi-layer components?

How do I fix incorrect recognition of the pan gesture where container nesting is involved? (API version 9)

How do I implement a button that only responds to the bound onClick event, but not the onTouch event bound to the button's parent component?

How do I prevent the TextInput component from bringing up the default keyboard?

How do I prevent a component's mouse events from bubbling up to the parent component?

How do I implement the slide up and slide down effect for page transition?

How do I configure custom components to slide in and out from the bottom?

Can child component events be passed to parent components?

Can other events besides keyboard and mouse events have their bubbling interrupted?

Why is onVisibleAreaChange triggered twice when a component is hidden?

Does @Watch have stickiness?

Why does using @Watch to call async functions slow down UI responsiveness?

How do I remove the Video component from a page?

What should I do if calling stopPropagation does not prevent the touch event from being dispatched?

How do I obtain the window width and height?

Can I set variables for the universal attribute width?

How do I determine whether a JS object contains a specific value?

How do I hide the status bar on the top of an application?

How do I lock the window in portrait mode so that it does not rotate with the device?

Why do the isStatusBarLightIcon and isNavigationBarLightIcon attributes set by calling setWindowSystemBarProperties not take effect?

How do I keep the screen always on?

How do I listen for window size changes?

How do I obtain the screen width, height, resolution, and orientation information?

How do I set an immersive window?

How do I obtain the width and height of a window?

How do I resolve the issue where the modal window created by Window does not have the default focus, leading to unresponsiveness to the back gesture event?

How do I obtain the height of the status bar and navigation bar?

How do I align the TabBar of the Tabs component to the left?

How do I switch the window between landscape and portrait modes?

Is there an alternative solution for handling "9-patch" images (also known as "draw9patch," ".9 images," and "dot9 images")?

Are there any callback events after a component refresh in ArkUI?

How do I implement another dialog box in a custom dialog box?

How do I implement dragging functionality for the Grid component?

How do I set an immersive status bar?

How do I dynamically control the keyboard binding to different TextInput components?

How do I use iconfont?

What is the caching mechanism for the Image component?

What are the rules for generating keys in ForEach?

What are the differences between the Flex component and W3C's flexbox?

Do ArkUI components support inheritance?

Do @Style and @Extend support export?

How do I dynamically update the Canvas content?

Does the custom component support generics?

Can a custom component be saved through a container?

How do I resolve the error "undefined is not callable" when using BuilderParam to call a method in the parent component?

How can a component detect when the application is switched to the foreground or background?

How do I implement chain calls in a custom component as in system components?

What is the difference between setting attributes externally and setting them inside the build method for a custom component?

How do I implement a loading effect when the page is loaded?

How do I implement pull-to-refresh and pull-up-to-load-more effects?

How do I obtain the height of the notch area? Which value in topRect should be used: height, top, or the sum of height and top?

How does the system handle users' screenshot and recording operations after an application prohibits screen capturing?

Is there any obstruction in the touch target of the component at the bottom of the screen?

How do I obtain the device screen orientation?

Is the subwindow created by default in full screen? How do I hide the status bar when the window is in full screen?

How do I make the Grid component automatically adapt its height when the height is undetermined?

How do I obtain the screen information of a phone?

How do I resolve the issue where clicking the child component area triggers the parent component's click event?

How do I address the issue where both a child component and its parent component trigger touch events when the user is interacting with only the child component?

Why is the gradient opacity set using 0x eight-digit colors different from the # eight-digit resource color values?

How do I enable the background to change with the text size?

How do I use ListItemGroup together with LazyForEach?

How do I set the font of the Text component so that it is not affected by the scaling of the display size in system settings?

How do I obtain the height of the navigation indicator at the bottom?

How do I implement a list that can scroll both horizontally and vertically?

How do I implement pull-to-refresh using the Swiper component?

What should I do if vp2px and px2vp return incorrect results?

Is there a maximum number of pages limit for navigation? If the router stack exceeds 32, will it be unresponsive or will it throw an error?

How do I use the navPathStack parameter of Navigation?

How do I set the height of a child component in a Navigation container to 100% to fill the parent container?

What is the difference between pushPathByName and pushDestinationByName in Navigation?

How do I enable the soft keyboard to disappear on touching a button?

How do I obtain the heights of the status bar, navigation bar, and navigation indicator?

How do I implement text expand and collapse functionality?

How do I enable a list to scroll back to the current display position after a pull-to-refresh operation?

Can TextInput gain focus after it has the visibility attribute set to Hidden or None?

How do I obtain route parameters on a NavDestination page when using the Navigation component for navigation?

How do I implement cross-file style reuse?

How do I implement cross-file component reuse?

How do I adapt my application to the screen cutout?

How do I Implement a unified grayscale feature for a window, page, or component?

How do I implement drag and drop to exchange child component positions in a List component?

How do I restore a swipe action item to its initial state?

How do I implement pull-to-refresh and pull-to-load-more on nested scrolling of the List, Swiper, or Grid components?

How do I trigger the application to run in the background in the code?

How do I disable the rebound effect used when the scroll boundary is reached for the Tabs component?

How do I switch between the custom keyboard and the system keyboard?

What is the difference between struct and class?

How do I implement page-level transparency for navigation between pages?

How do I implement lazy loading of a two-dimensional array?

How do I implement a QR code with an image?

Can the event response order be set when a List component is nested within a Scroll component, so that the List does not respond to scroll events and the outer Scroll scrolls the entire layout?

How do I clear the focus in a text box?

How do I take a screenshot and obtain the screenshot content?

How do I obtain a WindowStage instance from a page?

How do I obtain the component rendering completion time?

How do I disable the click gesture of the Toggle component while dragging?

How do I open a half-screen display through routing?

How do I recognize double-tap gestures while ignoring single-tap gestures?

How do I obtain the touch target of a component?

How do I copy content directly to the pasteboard?

How do I customize the long press trigger time of onItemDragStart in the long-press drag and drop scenario?

How do I use bindSheet with ForEach?

How do I draw a rounded rectangle using the canvas?

How do I set the left and right margins for mirrored languages?

How do I Implement the single-sided rebound effects in Scroll and List components?

How do I merge two lists and support lazy loading?

Why doesn't the auto setting for height take effect for the RelativeContainer component when child components use the container as an anchor?

How do I disable the split-screen mode?

How do I resolve the conflict between scroll events and gestures in scrollable containers?

How do I combine ListItemGroup with LazyForEach and implement component reuse?

How do I cancel the text selected state when closing the custom menu in the Text component?

What are the differences in usage between the WaterFlow, Grid, and List containers?

How do I control the display level of CustomDialog?

How do I resolve the performance issue caused by the long duration of key generation in the third parameter of ForEach?

How do I prevent the display of intermediate transition tab pages when switching pages in the Tab component?

Why does performance degrade when LocalStorage frequently reads and writes complex objects?

How do I bind different custom keyboards to different text boxes?

Does batch updating of multiple @State decorated state variables within a custom component affect performance?

How do I determine whether the data loaded in the List component exceeds one screen?

What are the common component attributes for which auto can be set?

How do I make LazyForEach work in a double-nested list?

How do I avoid blank spaces when the Marquee component scrolls text for the first time?

How do I prevent accidental tab page turning during web page scrolling and accidental web page scrolling during tab switching?

How do I determine whether the current device is a foldable phone?

How do I keep the keyboard focused in a subwindow?

How do I implement a gradient mask effect at the top in a live broadcast comment scenario?

How do I add other components to the tab bar in Tabs?

How do I implement a partial hollow-out effect using Canvas?

How do I resolve the issue of abnormal clipping with ellipsis in the Text component when the content is a mix of Chinese, numbers, and English characters?

How do I implement a folding animation for the List component?

How do I modify the corner radius and arrow color of the popup bound by bindPopup?

How do I control the popup offset to adapt the popup to the Web component's long-press menu?

How do I prevent the image from flickering when Badge switches the quantity display?

How do I delay the status change of the Toggle component after it responds to a click?

How do I obtain dark color values using getColorSync(resource) in dark mode?

How do I remove the phonetic mark when converting Chinese characters to Pinyin?

How do I change the size, color, and position of the password icon in the TextInput component's password input mode?

How do I resolve overlapping between the status bar and page content?

How do I implement an immersive status bar background color?

How do I adapt the color of the status bar to the color mode?

How do I hide the status bar in full screen mode and show it when not in full screen mode?

How do I set the minimum and maximum font sizes for the Button component?

How do I ensure that a foldable phone adapts to rotation in the unfolded state but does not in the folded state?

How do I implement dynamic component mounting and unmounting?

What should I do if the system gestures for long pressing and panning on the Image component conflict with custom gestures?

How do I implement the feature of closing a floating window through a swipe gesture?

How do I obtain the original object before it is proxied by the ArkTS state management framework?

Why a window instance cannot be used to obtain the updated window size in the display.on('change') callback?

How do I obtain the screen orientation and avoidAreaChange information at the same time?

How do I implement an immersive page with an immersive status bar and immersive navigation bar?

How does AspectRatio affect the layout?

How do I set click events for different positions in a custom span?

What is the difference between window orientation enumerated values?

How do I implement automatic screen rotation for applications?

What are the differences and restrictions between a custom builder function and custom component?

How do I concatenate string variables of ArkUI components?

How do I enable Screen Hopping?

Can I instrument ArkUI components such as pages?

How to simulate a touch event?

What are the possible causes of long dlopen:libace_compatible.z.so duration during cold start of an application?

What is the relationship between the onAreaChange and windowStatusChange callback events? Which one is triggered earlier?

Why the upper extended hot zone configured with the responseRegion attribute responds to clicks but the lower one does not?

What should I do if the XComponent component in surface mode displays abnormally after renderFit is set?

What should I do if flickers occur during the component disappearance animation?

How do I implement the text gradient effect?

How do I disable the pull-down refresh feature of the Refresh component?

What should I do if some text colors are displayed abnormally when I use a Text component to nest a Span component or use an attribute string to render text?

Why does the application crash when I use a router? How to troubleshoot the problem?

Why do navigations through the router fail?

What are possible causes of white screen during page redirection?

How do I set the dialog animation and mask animation separately?

How do I load SVGA files?

How do I customize the position of an indicator in Swiper?

Why do both onClick and .parallelGesture gestures respond to the long-press operation when a component is bound to both of them?

How do I draw a mosaic on an image?

How do I implement the effect that swiper changes its height based on the sliding distance?

Why does the custom title bar using Navigation not take effect?

How do I listen for the Navigation page lifecycle?

How do I check whether the lower-layer page of the Navigation page is covered by Dialog?

What are the page lifecycles managed by Navigation, and through which callback can I listen for the page lifecycles?

Can the NavDestination page in the Navigation component be cached so that it can be reused when pushed onto the stack next time?

How do I quickly convert RouterMap registration to wrapBuilder registration in Navigation router?

Are there any optimization suggestions for the time-consuming issue when opening a page using the Navigation component?

By which lifecycle method can the lower-level page in the Navigation Router perceive the pop-up and destruction of the upper-level NavDestinationMode.DIALOG?

How do I correctly call the queryNavDestinationInfo API in the Navigation component when it returns undefined?

How do I set a default page in the Navigation component?

How do I listen to the end time of the system animation after page switching in the Navigation component?

Can internal pages of the Navigation component be preloaded?

How do I disable the animation for switching between single and double column modes?

What methods can be used to switch between content pages in the Tabs component?

How do I listen to Navigation page stack changes?

Why does Navigation display a white screen after page redirection via pushPathByName?

How do I implement a swipe-to-exit feature using ArcSwiper during Watch development?

How do I implement transition animations for the dialog or background mask in NavDestinationMode.DIALOG mode?

Why does it not trigger the onPop of B and C during Navigation page redirection from A->B->C->D, with D directly calling popToName to navigate to A?

In which lifecycle is it recommended to receive parameters on the Navigation page?

How do I manage Navigation page parameters, for example, transferring parameters, returning parameters, and obtaining parameters?

How can I use Navigation to transfer NavPathStack instances between custom components?

What should I do if an error is reported during Navigation inter-module redirection?

How do I align the TabBar of the Tabs component to the left?

How do I distinguish between the two scenarios of onPageHide: when the application is switched to the background and when a new page is opened?

When NavPathStack clears the page stack or the back button is clicked, why is the navigation bar displayed, and what should I do to exit the page where Navigation is located?

Does the Tabs component support lazy loading?

How do I decouple the animation logic from the Navigation component when using customNavContentTransition to customize transition animations?

Why does the watch receive the onHidden callback message 2 minutes after the screen is turned off?

How do I implement a partially visible effect of an item using Swiper?

Is there a demo project that uses Navigation to implement cross-module redirection, including the practice of the system route table and custom route table?

How do I disable the default bottom sliding animation triggered by the removeByName method of the Navigation component?

How do I adapt ArcSwiper to the watch crown?

How do I add throttling to the Swiper component to control the Swiper switching frequency?

How do I set the margin of the Tabs component so that the blank margin can follow the swiping?

Can the Scroll content area scroll when its height is less than the component height?

How do I set nestedScroll so that the Scroll component scrolls first, and the outer scrolling container scrolls after the Scroll component scrolls to the edge?

What should I do to make the dialog box not be displayed above the next page?

What should I do if the popup menu cannot be displayed when showInSubWindow is set to true when using bindPopup on a PC?

What should I do if component A responds to the click event outside the menu area when component A is configured with a long-press menu through bindContextMenu?

How do I make API version compatibility check for UI component properties?

How do I disable popup content when using components such as TextInput and TextArea?

What should I do if the customized tabBar switching animation of the Tabs component is delayed and the tabBar switching is triggered only after the Tabs page switching is completed?

What should I do if the TabContent page of the Tabs component takes a long time to load and preloading is not working?

Can soft keyboard avoidance be implemented in modal transition and sheet transition?

How do I listen to the display of TabContent in the Tabs component?

How do I set a one-way swipe-to-switch between the content pages within the Tabs component?

Why does the transparent part of a page turn black when a component is used to take a screenshot and save it as a JPG image?

Why is the performance of FrameNode not as good as that of declarative syntax?

Can the isAttached API of FrameNode be used to determine whether a FrameNode is displayed on the screen?

How do I prevent memory leak when data is stored in the AppStorage?

What should I do if the values inside cannot be obtained after storing an object in AppStorage?

What should I do if the dialog box remains visible above the displayed page during page redirection through customDialog?

What should I do if a page opened through a sheet is covered by it?

What should I do if a blank screen is displayed when swiping left using the Swiper component?

How do I implement forcibly refreshing the page data when switching tabs?

What should I do when the tab key is used for focus traversal, but focus moves between the last page and the last tab?

How do I remove the built-in accessibility reading of the customized tabBar of the Tabs component?

What should I do if the onClick event of the outer container cannot be blocked when stopPropagation is called in onTouch of a child container?

How do I disable click-based switching for Tabs and disable TabContent switching by swiping the content page?

How do I preload a specific TabContent page for the Tabs component?

How do I evenly set the width of the Tabs navigation bar based on the number of tab bars?

How do I make the Tabs component automatically adapt its height to the content?

What should I do if it crashes when using the input parameters to refresh the UI in aboutToReuse?

What should I do if transition animation within the component takes effect for newly added content but does not take effect for deleted content?

What should I do if child components of the Tabs component contain if nodes, and the tab bar association is abnormal after the if condition is changed?

What is the blank space at the bottom of the Navigation page, and how do I remove it?

How do I implement the eye comfort mode?

How do I check the specific limitation when ComponentSnapshot returns error code 100001, indicating that the screenshot size is too large and exceeds the hardware limitation?

What should I do if the text color is overlaid with a layer of transparency after setting the opacity for the Text component?

How do I implement canceling the current long press gesture when it is moved out of the component?

How do I determine the component occlusion status and proactively hide the occluded components?

What should I do if an error occurs when I define a method in a custom component?

What should I do if the application keyboard is blocked and half of the text box is blocked?

How do I ensure that the layout of the floating window is normal when I drag the floating window to the extended monitor on a HarmonyOS computer?

How do I set the custom keyboard to be edge-aligned with the text box?

How do I listen to and avoid three-key navigation?

How do I set a keyboard that supports only text input, that is, disable the AI feature of the keyboard?

How do I obtain the changes in the cursor?

How do I store PixelMap data to a database?

How do I share preferences data in an application that has multiple HAPs?

Where is the database file stored?

How do I persist data in card development?

How do I obtain files of a specific type from the database?

How do I use full-text search of SQLite?

How do I obtain the SQLite version supported by the system?

What does it mean if rowCount in resultSet returned by RdbStore.query() is -1?

How do I read data from a local or preset database?

How do I ensure that only one write operation is performed at a time in an SQLite-based database? How do I create an index?

What should I do if error code 14800007 is reported during data query?

What should I observe in RDB store thread-safe development?

How do I obtain data using predicates?

What is the difference between batchInsert() and insert()?

What should I do to store multiple tables? Should I store multiple tables in a database or store each table in a database? What are the principles of using these two solutions?

Is the same RDB store object obtained if relationalStore.getRdbStore is executed multiple times with the same parameters?

Can I create a singleton that always holds a database object? Is there any impact on performance?

What is the absolute path of the database file (.db) of an application?

What are the search capabilities supported by the RDB store?

Must bundleName in createKVManager() be the application's bundle name?

Must the default value of each attribute of distributed objects be initialized to undefined to prevent data backfeeding?

What is the difference if I call on() before setSessionId() and after setSessionId()?

Why the preferences data is lost after the application is restarted?

How is the preferences context obtained by an .ets file without UI styles?

How do I implement synchronous calling of RDB store APIs?

What should I do if "code: 401 err: Error: Parameter error. The type of 'value' must be ValueType." is returned?

How do I view or export persistent data?

How do I obtain the sandbox path of application data?

What should I do if the size of the WAL file in the RDB is abnormal after data is inserted?

Are preferences APIs thread-safe?

Why is the RDB store not deleted after deleteRdbStore() is called successful?

Why can't I store the data of all applications in the same directory or database, given that the sandbox mechanism used in HarmonyOS isolates application data and allows access only from its own application?

How do I select a data storage solution?

How do I ensure that preferences data can be properly read across modules and processes?

How is data security ensured in data management?

Is relationalStore thread-safe?

Will the persistent preferences data be retained if the application is updated?

Why does the ArkData StoreConfig.customDir not take effect?

How do I prebuild database data into an application?

What is the first parameter appId in deleteKVStore() of @ohos.data.distributedKVStore?

Regarding relationalStore.RdbStore, how do I query a database? Do I need to create a child thread to query the database?

Can I dynamically add fields for ValuesBucket?

How do I use the zip module to decompress files in the project's rawfile directory to the sandbox directory of an application?

How do I create a file if the file to open does not exist?

What should I do if the file contains garbled Chinese characters?

How do I modify the specified content in the JSON file in the sandbox directory?

How do I save pixels as an image file?

What is the destination download directory for an application?

Can I use Want to start an application during file sharing instead of displaying the selection window?

What is the maximum length of a file name supported by the system file manager?

Does fs.write() support encoding formats other than UTF-8?

How do I obtain the used cache size of an application and clear the cache?

Is a synchronous Hash.hash API available?

What is the difference between the files in el1 and el2?

How do I determine the operation permission on a file based on the mode of an FD?

Where can I find the screen recording files on my phone?

How do I export a file from my phone, for example, to an external storage device?

How do I save logs with the faultLogger?

How do I prevent the files from being deleted when the application is uninstalled?

Should I call fileIo.closeSync in ArkTS after close() in C is called to close the FD obtained by fileIo.openSync?

How do I verify file consistency?

What is the difference between fd and internal?

After request.uploadFile() is used to upload a file, there is no callback for the message returned by the server. How do I know whether the file is successfully uploaded?

Does the image URI returned by FilePicker have only temporary access permission?

How do I read a byte array from a binary file and convert the ArrayBuffer returned by fileIo.createStreamSync to number[]?

What should I do if fileIo.open fails to read the application sandbox path?

How do I obtain the rawfile in the resources directory?

What should I do if the error message "the parameters check fails this is fail path" is displayed?

How do I set the font file path when registering a custom font in the font manager?

How do I obtain the sandbox path in native code?

Where are photos and videos stored?

How do I continue writing data from the end of the last write operation?

Where are the HAPs after an application is installed?

Can I enable auto backup of the application data when developing a mobile application?

Why is the length returned by fileIo.write is inconsistent with the content length?

How do I obtain the file name extension?

Why is the API for obtaining the user's Download directory unavailable?

Why does the fileDir obtained vary with the context type?

How do I read the specified content and convert it to an object?

How do I check whether a path indicates a directory?

What should I do if Picker does not have the permission during the cold startup of an application?

How do I create a temporary file?

How do I listen for file or folder changes?

Where can I find screenshots?

How do I convert a Base64 string to an image and save it?

What should I do if the image path passed from ArkTS to C++ cannot be read by the C++ code?

How do I select a path for saving a user file?

Why is the content input by Celia keyboard read again? (For example, when a user enters '1', the system reads '1 1'.)

How do I read the XML file in the rawfile subdirectory and convert its data to the string type?

How do I obtain resources in the resources directory?

How do I convert resources to the string format?

How do I set numbers to be displayed with currency separators?

How do I convert app.media.app_icon to PixelMap?

How do I read the JSON file in the resources directory of a project?

How do I convert the content in a file into strings?

How do I obtain the rawfile resources from a HAR/HSP in a multi-module project?

How does the return value of onLoadIntercept affect onInterceptRequest in the Web component?

What should I do if the onKeyEvent event of the Web component is not triggered as expected?

What should I do if page loading fails when onInterceptRequest is called?

What should I do if the network status fails to be detected on the loaded HTML page?

How do I enable the Web component to return to the previous web page following a swipe gesture?

What are the differences between JSBridge communication and port communication in WebView?

What should I do if the registered custom font is invalid in the WebView?

What should I do if a white screen is displayed or the page cannot be displayed when the Web component loads a page?

What are the differences between javaScriptProxy and registerJavaScriptProxy? How many objects can be registered?

What are the differences between runJavaScript and runJavaScriptExt of WebView? When are they called in the page lifecycle (such as onPageShow and onPageEnd)?

How do I synchronize cookies requested from the network to the web page?

How do I set multiple cookies in batches?

When should the cookie of the login information be injected? How do I ensure that the login information cookie can be injected into the web page that is just opened?

How do I trigger onPageBegin and onPageEnd only when the Web component loads the URL for the first time?

How do I adapt the Web and Webview to common front-end frameworks (such as Vue and React)?

How do I add a header to a web request?

How does a Web component access a local resource file and add query parameters?

How do I determine whether a web page scrolls to the top or bottom and transfer the scrolling event to the page?

How do I use the tag to open HTML5 pages of the Web component?

How do I prevent the resources registered on the original page from being cleared after the HTML5 page loaded on the web page is redirected?

How do I add parameters to a URL when the Web component uses rawFile to load offline HTML files?

How do I use the alert function of H5 in the WebView?

Does HarmonyOS support independent upgrade of the web kernel?

Whether the third-party WebView kernel is supported?

Does WebView support CodeCache?

When should I use dynamically created Web components? What is the performance?

How do I check the path of cookies?

How do I hide the PDF operation button bar during PDF preview?

What should I do if a white screen is displayed during WebView offline loading?

What should I do if a white screen is displayed when the loaddata method of WebView is used?

Whether the cookie in the WebView can be synchronized with that in the application?

How do I run JS scripts before and after the DOM tree is loaded in the Web component?

How do I store the WebController globally?

What should I do if the process ID needs to be found during each debugging of the WebView?

How do I set a custom user agent using a callback event of the Web component?

Does the system support WebRTC? What are the specifications?

How do I load files that are intercepted on the web page?

How do I set the mixed content policy in WebView to load HTTP and HTTPS mixed content?

How do I obtain the error code when an error occurs during Web component loading?

How do I adapt the player on a web page to the full screen?

Does the Web component support redirection to other apps through the URL Scheme protocol?

How do I set the saveas parameter in request.agent.Config?

How do I use the Web component to download PDF files and display them to users?

How do I set the opacity effect of HarmonyOS Webview?

How do I hide the scroll bar of Web components?

What files can be previewed in WebView?

What are the differences between the four risk levels illegal, fraud, risk, and warning when using the Web component to access a page? Does the risk levels can be customized?

Is there an API to determine whether the Web component is bound to the controller?

How do I use the onInterceptRequest API to asynchronously process response data?

Can I use request.getRequestHeader() in onInterceptRequest to obtain all request headers?

Whether the Web component has the listening or callback method when the PDF file fails to be loaded?

How do I load a link with a hash (#) in the WebView?

What should I do if accessBackward of Webview does not meet expectations?

When should I call the getPageHeight method of WebviewController?

Does the ArkWeb component support deep copy?

How do I adapt ArkWeb to multiple devices?

What is the memory usage and memory reclamation mechanism of the Web component?

What should I do if the soft keyboard is displayed unexpectedly during web page switching?

How do I convert an HTML page loaded by the Web component into a PDF file?

How do I change the displayed white screen page to a custom error page when web loading fails?

How do I properly render the returned HTML containing mathematical formulas to the page?

What should I do if the image component fails to load online images due to network problems?

What should I do if a web page is zoomed out when the vh unit is used for page adaptation?

Will the permission request dialog box appear again after the user previously rejects such a request?

Is the permission request dialog box displayed after an application update?

What are the precautions for applying for the precise location permission?

How do I display the permission request dialog box again when the user has denied a permission?

Can a description be provided for a dynamic permission request?

Can user_grant permissions be pre-granted?

Which system security capabilities are naturally available and which require adaptation by developers?

Can an application listen for the permission change made in Settings?

Why isn't a pop-up displayed when an application applies for the location permission?

What can I do to prevent the application from crashing when it is started again after the user denies the permission requested?

Is dynamic authorization supported?

What is the difference between extensionAbilities and requestPermissions in the module.json5 file?

Can the asset store of an application be obtained by other applications? Can I disable cross-device sync of asset data?

Do HarmonyOS applications require packing?

How do I obtain the hash value of an application signing certificate?

How do I use the RSA public key (string) issued by the server to encrypt plaintext?

Does ECC support Secp256r1?

How do I encrypt a large file using SM4?

How do I use the RSA public key (pk) to encrypt a piece of text?

How do I convert a public key to hexadecimal or Base64 format?

What do I do if garbled characters are displayed after Base64 decoding?

How do I encrypt and decrypt public and private keys?

What should I do if error 401 is reported when RSA is used to encrypt data?

What should I do if "Error message:convertSymKey key failed!" is reported in HMAC encryption?

How do I use an existing certificate to encrypt an RSA public key?

How do I use SM3 to calculate the message authentication code?

How to store a public key?

How do I convert a string into a key object during AES encryption?

How do I use SM3 to generate a hash value?

What should I do if "error 401 invalid param" is displayed when convertKey is called to convert the public key in RSA encryption?

In which conditions will the key generated by HUKS be deleted or destroyed?

Must the initial vector (IV) in HUKS be a random number? What is the impact of the IV on the key generated?

What should I do if AES encryption fails in concurrency scenarios?

Can the AAD be empty when the AES GCM algorithm is used in HUKS?

What should I do if the plaintext after HUKS decryption is different from the original plaintext if Chinese characters are present?

How do I obtain the public key of a HarmonyOS signing certificate?

How do I use a custom PIN (6–16 digits) to unlock a key?

What should I do if an error is reported when HUKS native APIs are used to generate a key?

How do I store important data such as private keys?

What is the difference between huks.isKeyItemExist and huks.hasKeyItem?

Does HarmonyOS support pre-installation of a CFCA certificate?

How do I obtain the parameters of the certificate chain validator?

What data formats are supported by extraData in an HTTP network request?

What does error code 6 mean in the response to an HTTP request?

How do I upload photos taken by a camera to the server?