Question

我是Android开发的新手。我正在开发一个应用程序，将身份证中的图像与脸部图像进行比较。从UploadActivity，用户将捕获身份证，点击“确定”后用户将被提示从LivenessActivity前置摄像头以捕获用户的脸部。在进行了眨眼动作后，将成功捕捉脸部并自动提示UploadActivity。在UploadActivity中，用户将点击“VIEWFACE”按钮，将出现脸部图像。但不幸的是，在捕捉脸部图像时，LivenessActivity一直出现要求用户再次捕捉。但如果用户点击后退按钮，则会提示{{1如何避免UploadActivity在捕获面后继续出现？

这是我的LivenessActivity和Upload Activity供您参考：

UploadActivity：

LivenessActivity

LivenessActivity：

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_upload);

    txtPercentage = (TextView) findViewById(R.id.txtPercentage);

    progressBar = (ProgressBar) findViewById(R.id.progressBar);
    imgPreview = (ImageView) findViewById(R.id.imgPreview);
    imgFace = (ImageView) findViewById(R.id.imgFace);
    btnCapturePicture = (Button) findViewById(R.id.btnCapturePicture);



    btnCapturePicture.setOnClickListener(new View.OnClickListener() {



        @Override
        public void onClick(View v) {

            captureImage();
        }

    });



    Intent i = getIntent();

    // boolean flag to identify the media type, image or video
    final boolean isImage = i.getBooleanExtra("isImage",true);
    previewMedia(isImage);
    if (fileUri != null)



      //call LivenessActivity
        startActivity(new Intent(UploadActivity.this,
        LivenessActivity.class));


    btnviewface = (Button) findViewById(R.id.btnviewface);
    btnviewface.setOnClickListener(new View.OnClickListener() {



        @Override
        public void onClick(View view) {

            Bundle extras = getIntent().getExtras();
            byte[] face = extras.getByteArray("image_best");

            //save byte[] in the sd card, make a folder
            try {
                Config.IMAGE_FACE = "/storage/emulated/0/Pictures/Android 
          File Upload/IMG_face.jpg";
                FileOutputStream stream = new FileOutputStream( 
          Config.IMAGE_FACE);
                stream.write(face);
            } catch (FileNotFoundException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            }

            Bitmap bmp = BitmapFactory.decodeByteArray(face, 0, 
          face.length);
            imgFace.setImageBitmap(bmp);
            previewMedia(isImage);
            new UploadFileToServer(Config.IMAGE_DOC, 
        Config.IMAGE_FACE).execute();

        }

    } );

Answer 1

删除public void onActivityResult(int requestCode, int resultCode, Intent resultData) { if (requestCode == READ_REQUEST_CODE && resultCode == Activity.RESULT_OK){ uri = resultData.getData(); //do some more stuff }中的startActivity，而不是此调用LivenessActivity或finish()

LivenessActivity.this.finish()

如何避免重复拍摄的图像

1 个答案: