Ionic3学习笔记（十六）上传头像至第三方图床

getPictureAndUpload(sourceType: number) {
  const cameraOptions: CameraOptions = {
    quality: 80,
    destinationType: this.camera.DestinationType.FILE_URI,
    sourceType: sourceType,
    allowEdit: true,
    encodingType: this.camera.EncodingType.JPEG,
    targetWidth: 200,
    targetHeight: 200,
    mediaType: this.camera.MediaType.PICTURE,
    correctOrientation: true,
    saveToPhotoAlbum: true,
    cameraDirection: this.camera.Direction.BACK
  };

  this.camera.getPicture(cameraOptions).then(image => {
    this.onUploadPicture(image);
  }, error => {
    console.log(error);
  });
}

onUploadPicture(fileURI: string) {
  const fileTransferObject: FileTransferObject = this.fileTransfer.create();

  const fileUploadOptions: FileUploadOptions = {
    fileKey: 'file',
    fileName: 'avatar.jpg',
    httpMethod: 'POST',
    mimeType: 'image/jpeg',
    params: {},
    chunkedMode: true,
    headers: {'Content-Type': 'multipart/form-data'}
  };

  let url: string = 'https://sm.ms/api/upload?smfile=' + fileURI;

  fileTransferObject.upload(fileURI, url, fileUploadOptions).then(data => {
    console.log(data["response"]);
    wilddog.auth().onAuthStateChanged(user => {
      user.updateProfile({'photoURL': JSON.parse(data["response"])["data"]["url"]}).then(() => {
        this.getUserData();
      }, error => {
        this.presentToast(error.name + ': ' + error.message);
      });
    });
  }, error => {
    console.log(error);
  });
}

presentChangeAvatarActionSheet() {
    let changeAvatarActionSheet = this.actionSheetCtrl.create({
      title: '更换头像', buttons: [{
        text: '相册', handler: () => {
          this.getPictureAndUpload(this.camera.PictureSourceType.PHOTOLIBRARY);
        }
      }, {
        text: '拍照', handler: () => {
          this.getPictureAndUpload(this.camera.PictureSourceType.CAMERA);
        }
      }, {text: '取消', role: 'cancel'}]
    });
    changeAvatarActionSheet.present().then(value => {
      return value;
    });
  }
}