删除图库图片，创建一个弹出框来删除照片，删除的文件进入到回收站

import abilityAccessCtrl, { PermissionRequestResult } from '@ohos.abilityAccessCtrl'; 
import { BusinessError } from '@ohos.base'; 
import dataSharePredicates from '@ohos.data.dataSharePredicates'; 
import photoAccessHelper from '@ohos.file.photoAccessHelper'; 
  
async function myCreateDeleteRequest(context: Context) { 
  let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates(); 
  // predicates.equalTo(photoKey, value); 
  let fetchOptions: photoAccessHelper.FetchOptions = { 
    fetchColumns: [], 
    predicates: predicates 
  }; 
  let phAccessHelper = photoAccessHelper.getPhotoAccessHelper(context); 
  phAccessHelper.getAssets(fetchOptions) 
    .then((result: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset>) => { 
      let asset = result.getAllObjects(); 
      result.close(); 
      return asset; 
    }) 
    .then((array: Array<photoAccessHelper.PhotoAsset>) => { 
      let uriList: Array<string> = []; 
      for (let index = 0; index < array.length; index++) { 
        const asset = array[index]; 
        uriList.push(asset.uri); 
      } 
      console.info(`MediaAlbum deleteAssets uriList is ${JSON.stringify(uriList)}`) 
      return phAccessHelper.createDeleteRequest(uriList) 
    }) 
    .catch((error: BusinessError) => { 
      return Promise.reject(error); 
    }) 
} 
@Entry 
@Component 
struct Index { 
  @State message: string = 'Hello World'; 
  
  async aboutToAppear() { 
    let atManager: abilityAccessCtrl.AtManager = abilityAccessCtrl.createAtManager(); 
    try { 
      let context: Context = getContext() 
      atManager.requestPermissionsFromUser(context, ['ohos.permission.READ_IMAGEVIDEO',"ohos.permission.WRITE_IMAGEVIDEO"], (err: BusinessError, data: PermissionRequestResult) => { 
        console.info('data:' + JSON.stringify(data)); 
        console.info('data permissions:' + data.permissions); 
        console.info('data authResults:' + data.authResults); 
      }); 
    } catch (err) { 
      console.log(`catch err->${JSON.stringify(err)}`); 
    } 
  
  
  
  
  } 
  build() { 
    Row() { 
      Column() { 
        Text(this.message) 
          .fontSize(50) 
          .fontWeight(FontWeight.Bold) 
        Button("按钮") 
          .onClick(()=>{ 
            let context=getContext() 
            myCreateDeleteRequest(context) 
          }) 
      } 
  
      .width('100%') 
    } 
    .height('100%') 
  } 
}
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