从API 20起，使用getPublishedRunningFormInfos获取当前应用已加桌的所有卡片的信息，若无卡片加桌，则报错误码16500100；使用getPublishedRunningFormInfoById获取当前应用已加桌的指定ID卡片的信息，若指定ID的卡片不存在或未加桌，则报错误码16500100。
import { formInfo, formProvider } from '@kit.FormKit';
import { BusinessError } from '@kit.BasicServicesKit';
@Entry
@Component
struct Index {
@State widgetCount: number = 0;
@State isGettingOne: boolean = false;
@State isGettingTwo: boolean = false;
@State widgetInfoGotten: string = '';
@State formIdTmp: string = '';
@State formId: string = '';
@StorageProp('FormArr') widgetCountByLifeCycle: string[] = [];
build() {
Column({ space: 16 }) {
Button('获取加桌卡片数量')
.type(ButtonType.Capsule)
.onClick(() => {
this.isGettingOne = true;
// 获取本应用全部已加桌卡片的信息
try {
formProvider.getPublishedRunningFormInfos().then((data: formInfo.RunningFormInfo[]) => {
// 当前应用有卡片已加桌，卡片信息获取成功
console.info(`promise success.`);
this.formIdTmp = data[0].formId;
this.widgetCount = data.length;
}).catch((error: BusinessError) => {
// 当前应用无卡片加桌，进入报错
this.widgetCount = 0;
console.error(`promise error, code: ${error.code}, message: ${error.message}`);
});
} catch (error) {
console.error(`catch error, code: ${(error as BusinessError).code}, message: ${(error as BusinessError).message}`);
}
});
if (this.isGettingOne) {
Text(`本应用已加桌卡片数量：${this.widgetCount}`)
.fontSize('18fp')
.fontWeight(FontWeight.Bold)
.height(40);
} else {
Row()
.height(40);
}
Button('获取指定ID的加桌卡片信息')
.type(ButtonType.Capsule)
.onClick(() => {
this.isGettingTwo = true;
// 获取本应用已加桌的指定ID卡片的信息
try {
this.formId = this.formIdTmp;
formProvider.getPublishedRunningFormInfoById(this.formId).then((data: formInfo.RunningFormInfo) => {
// 指定卡片已加桌，卡片信息获取成功
console.info(`promise success, form id: ${data.formId}`);
this.widgetInfoGotten = 'Got';
}).catch((error: BusinessError) => {
// 指定卡片不存在或未加桌，进入报错
console.error(`promise error, code: ${error.code}, message: ${error.message}`);
this.widgetInfoGotten = 'No got';
});
} catch (error) {
console.error(`catch error, code: ${(error as BusinessError).code}, message: ${(error as BusinessError).message}`);
this.widgetInfoGotten = 'error';
}
});
if (this.isGettingTwo) {
Text(`卡片id：${this.formId}，信息获取：${this.widgetInfoGotten}`)
.fontSize('18fp')
.fontWeight(FontWeight.Bold)
.height(40);
} else {
Row()
.height(40);
}
}
.height('100%')
.width('100%')
.justifyContent(FlexAlign.Center);
}
} import { formBindingData, FormExtensionAbility, formInfo } from '@kit.FormKit';
import { Want } from '@kit.AbilityKit';
export default class EntryFormAbility extends FormExtensionAbility {
onAddForm(want: Want) {
// Called to return a FormBindingData object.
const formData = '';
if (want.parameters) {
console.info(`====> Form location: ${want.parameters['ohos.extra.param.key.form_location']}`);
}
return formBindingData.createFormBindingData(formData);
}
onRemoveForm() {
// Called to notify the form provider that a specified form has been destroyed.
}
onCastToNormalForm() {
// Called when the form provider is notified that a temporary form is successfully
// converted to a normal form.
}
onUpdateForm() {
// Called to notify the form provider to update a specified form.
}
onFormEvent() {
// Called when a specified message event defined by the form provider is triggered.
}
onAcquireFormState() {
// Called to return a {@link FormState} object.
return formInfo.FormState.READY;
}
onFormLocationChanged(formId: string, newFormLocation: formInfo.FormLocation): void {
console.info(`formId: ${formId}, now location: ${newFormLocation}`);
}
};