调用系统相机，调用系统相机拍照后，结果没有带回应用中，app进程也没了

调用系统相机拍照后，结果没有带回应用中，app进程也没了。

async takePhotoddf(context:Context) { 
  await abilityAccessCtrl.createAtManager().requestPermissionsFromUser(context, ['ohos.permission.CAMERA', 'ohos.permission.READ_MEDIA']) 
  let contextww = context as common.UIAbilityContext 
  let result = await contextww.startAbilityForResult({ action: "ohos.want.action.imageCapture" }) 
  // 照片uri 
  console.error(this.TAG, 'PhotoViewPicker result uri: ' + result.want.uri ); 
} 
/** 
 * 拍照 
 */ 
public async takePhoto(context: common.UIAbilityContext): Promise<MediaBean> { 
 
 
  let want = { 
    'uri': '', 
    'action': wantConstant.Action.ACTION_IMAGE_CAPTURE, 
    'parameters': {}, 
  }; 
  return context.startAbilityForResult(want) 
  .then((result) => { 
  console.info(this.TAG, `startAbility call back , ${JSON.stringify(result)}`); 
if (result.resultCode === 0 && result.want && result.want.uri !=='') { 
  //拍照成功 
  console.info(this.TAG, 'takePhoto successfully, takePhotoResult uri: ' + result.want.uri); 
  return result.want.uri; 
} 
}).catch((error) => { 
  console.info(this.TAG, `startAbility error , ${JSON.stringify(error)}`); 
  return error; 
}).then(async (uri: string) => { 
  const mediaBean = await this.buildMediaBean(uri); 
  return mediaBean; 
}); 
}1.
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HarmonyOS

Heiang

2024-11-13 11:56:30

浏览

回答 1

按赞同

按时间

superinsect

拍照后返回原应用，需要在want里的parameters里加上需要返回的包名信息。

拍照结果图存在 result.want.parameters[‘resourceUri’]里。

样例代码：

import { BusinessError } from '@ohos.base'; 
import wantConstant from '@ohos.ability.wantConstant'; 
import common from '@ohos.app.ability.common'; 
 
@Entry 
@Component 
struct Index { 
 
  context = getContext(this) as common.UIAbilityContext 
  private TAG:string = 'takePhoto:' 
  @State url: string = '' 
  /** 
   * 拍照 
   */ 
  async takePhoto(context: common.UIAbilityContext) { 
 
    let want: object =new Object({ 
      action: wantConstant.Action.ACTION_IMAGE_CAPTURE, 
      parameters: new Object({callBundleName:"com.example.myapplication",}), 
    }); 
    return context.startAbilityForResult(want) 
      .then((result) => { 
        console.info(this.TAG, `startAbility call back , ${JSON.stringify(result)}`); 
        if (result.want != undefined && result.want.parameters != undefined && 
          result.want.parameters['resourceUri']!== undefined) { 
          this.url = result.want.parameters['resourceUri'].toString()//获取相片uri数据 
          //拍照成功 
          console.info(this.TAG, 'takePhoto successfully, takePhotoResult uri: ' + result.want.parameters['resourceUri']); 
        } 
      }).catch((error:BusinessError) => { 
        console.info(this.TAG, `startAbility error , ${JSON.stringify(error)}`); 
      }); 
  } 
 
 
  build() { 
    Column() { 
      Row() { 
        Button('点我').onClick(() => { 
          this.takePhoto(this.context); 
        }) 
      }.height('100%') 
    }.width('100%') 
  } 
}1.
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2024-11-13 17:00:09

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调用系统相机，调用系统相机拍照后，结果没有带回应用中，app进程也没了

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