camerasource 拍照不工作

Question

我正在尝试使用此项目从相机捕获和保存图像https://github.com/googlesamples/android-vision/tree/master/visionSamples/FaceTracker

捕捉图像的代码在面部跟踪活动java文件中

final CameraSource.ShutterCallback shutterCallback = new CameraSource.ShutterCallback() {
            @Override
            public void onShutter() {
                Log.d(TAG, "onShutter");
                Toast.makeText(view.getContext(),"sd",Toast.LENGTH_SHORT).show();
            }
        };
        CameraSource.PictureCallback myPictureCallback_JPG = new CameraSource.PictureCallback(){
            @Override
            public void onPictureTaken(byte[] arg0) {
            Bitmap bitmapPicture = BitmapFactory.decodeByteArray(arg0, 0, arg0.length);

            //save file
            String path = Environment.DIRECTORY_DCIM.toString();
            //Toast.makeText(getApplicationContext(),path,Toast.LENGTH_SHORT).show();
            OutputStream fOut = null;
            File file = new File(path, "FitnessGirl"+".jpg"); // the File to save to
            try{
                fOut = new FileOutputStream(file);
                bitmapPicture.compress(Bitmap.CompressFormat.JPEG, 85, fOut); // saving the Bitmap to a file compressed as a JPEG with 85% compression rate
                MediaStore.Images.Media.insertImage(getContentResolver(),file.getAbsolutePath(),file.getName(),file.getName());
                fOut.flush();
                fOut.close(); // do not forget to close the stream

            }catch (FileNotFoundException exception){

            }catch (IOException e){

            }
            //save file
            }};

        mCameraSource.takePicture(shutterCallback, myPictureCallback_JPG);

上面的代码不起作用，有人可以帮忙吗？

Answer 1

对于任何发现这个的人来说，变量路径有问题只需改变

//String path = getExternalFilesDir(Environment.DIRECTORY_DCIM).getPath();

to:

String path = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DCIM).getAbsolutePath();

并添加行 file.createNewFile(); //新文件后

File file = new File(path, "FitnessGirl"+".jpg");

try {
    file.createNewFile();
}catch(Exception e){
    e.printStackTrace();
}