ImageCaptureUri返回null

Question

我想从相机拍摄图片并将其发送到另一个称为segmentImage2（）的函数，该函数获取捕获图像的Uri 问题是：相机拍摄图像，但是发送到该功能的图像的Uri为空

这是我的代码

 private void setCapture(){
    btn_fab=(FloatingActionButton)findViewById(R.id.fab);
    btn_fab.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Intent i=new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
            String root =Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES).toString()+"propic.jpg";
            uri=Uri.parse(root);
            startActivityForResult(i,REQUEST_IMAGE_CAPTURE);


        }
    });


}



protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    Logger.debug("requestCode = %d, resultCode = %d, data = %s",
                requestCode,
                resultCode,
                data);
    if (requestCode == REQUEST_IMAGE_CAPTURE && resultCode == RESULT_OK) {


        Uri ImageCaptureUri=data.getData();
        Logger.debug("capture: %s", ImageCaptureUri);


        if (ImageCaptureUri != null) {
           if (Build.VERSION.SDK_INT >= 19) {
                final int takeFlags = data.getFlags() & Intent.FLAG_GRANT_READ_URI_PERMISSION;
                getContentResolver()
                        .takePersistableUriPermission(ImageCaptureUri, takeFlags);
            }

            segmentImage2(ImageCaptureUri);
        }


    }



 private void segmentImage2(Uri ImageCaptureUri){
    Fragment fragment = findFragment(R.id.fragment_segment_bitmaps);

    if (fragment instanceof SegmentBitmapsFragment) {
        ((SegmentBitmapsFragment)fragment).segmentBitmap2(ImageCaptureUri);//important note

    }

}