收起
自动换行
深色代码主题
复制
import { AbilityConstant, ConfigurationConstant, UIAbility, Want } from '@kit.AbilityKit';
import { hilog } from '@kit.PerformanceAnalysisKit';
import { window } from '@kit.ArkUI';
import display from '@ohos.display';

const DOMAIN = 0x0000;

export default class EntryAbility extends UIAbility {
  onCreate(want: Want, launchParam: AbilityConstant.LaunchParam): void {
    console.info(`want: ${want}`);
    console.info(`launchParam: ${launchParam}`);
    try {
      this.context.getApplicationContext().setColorMode(ConfigurationConstant.ColorMode.COLOR_MODE_NOT_SET);
    } catch (err) {
      hilog.error(DOMAIN, 'testTag', 'Failed to set colorMode. Cause: %{public}s', JSON.stringify(err));
    }
    hilog.info(DOMAIN, 'testTag', '%{public}s', 'Ability onCreate');
  }

  onDestroy(): void {
    hilog.info(DOMAIN, 'testTag', '%{public}s', 'Ability onDestroy');
  }

  onWindowStageCreate(windowStage: window.WindowStage): void {
    let windowClass: window.Window = windowStage.getMainWindowSync();
    let topType = window.AvoidAreaType.TYPE_SYSTEM;
    let bottomType = window.AvoidAreaType.TYPE_NAVIGATION_INDICATOR;
    let statusBarArea = windowClass.getWindowAvoidArea(topType);
    let bottomNavArea = windowClass.getWindowAvoidArea(bottomType);
    let statusBarHeight = statusBarArea.topRect.height;
    let bottomBarHeight = bottomNavArea.bottomRect.height;
    let promise: Promise<Array<display.Display>> = display.getAllDisplays();
    promise.then((data: Array<display.Display>) => {
      let screenHeight: number = data[0].height;
      let contentHeight: number = screenHeight - statusBarHeight - bottomBarHeight;
      AppStorage.setOrCreate('contentHeight', contentHeight);
      console.info(`Succeeded in obtaining all the display objects. Data:  ${JSON.stringify(data)}`);
    });
    // Main window is created, set main page for this ability
    hilog.info(DOMAIN, 'testTag', '%{public}s', 'Ability onWindowStageCreate');

    windowStage.loadContent('pages/Index', (err) => {
      if (err.code) {
        hilog.error(DOMAIN, 'testTag', 'Failed to load the content. Cause: %{public}s', JSON.stringify(err));
        return;
      }
      hilog.info(DOMAIN, 'testTag', 'Succeeded in loading the content.');
    });
  }

  onWindowStageDestroy(): void {
    // Main window is destroyed, release UI related resources
    hilog.info(DOMAIN, 'testTag', '%{public}s', 'Ability onWindowStageDestroy');
  }

  onForeground(): void {
    // Ability has brought to foreground
    hilog.info(DOMAIN, 'testTag', '%{public}s', 'Ability onForeground');
  }

  onBackground(): void {
    // Ability has back to background
    hilog.info(DOMAIN, 'testTag', '%{public}s', 'Ability onBackground');
  }
};

页面部分：

收起
自动换行
深色代码主题
复制
@Entry
@Component
struct AdaptiveScroll {
  scroller: Scroller = new Scroller();
  private arr: number[] = [0, 1, 2, 3, 4];
  contentHeight: number = this.getUIContext().px2vp(AppStorage.get('contentHeight') as number);

  build() {
    Scroll(this.scroller) {
      Column() {
        ForEach(this.arr, (item: number) => {
          Column() {
            Text(item.toString())
              .width('90%')
              .height((this.contentHeight / this.arr.length) - 10)
              .backgroundColor('#F1F3F5')
              .borderRadius(16)
              .fontSize(16)
              .textAlign(TextAlign.Center);
            Blank(10);
          };
        }, (item: number) => item.toString());
      }.width('100%').height(this.contentHeight);
    };
  }
}

如何监听应用进入多任务

PC或平板自由多窗模式下，如何做到主窗口获焦，子窗口隐藏

意见反馈

以上内容对您是否有帮助？

意见反馈

如果您有其他疑问，您也可以通过开发者社区问答频道来和我们联系探讨。

社区提问 AI 助手提问