Custom Camera Preview Android

Question

I'm trying to create a custom camera preview like the one used by WhatsApp. To illustrate the problem, I'm adding an image below:

Example of Preview

I'm using the following code to open the camera activity:

imgCamera.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            File file = new File(path);
            Uri outputFileUri = Uri.fromFile(file);
            Intent intent = new Intent(
                    android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
            intent.putExtra(MediaStore.EXTRA_OUTPUT, outputFileUri);
            startActivityForResult(intent, 2);
        }
});

And trying the below to show up the preview:

public void onActivityResult(int requestCode, int resultCode, Intent data) {
    if (requestCode == 2 && resultCode == Activity.RESULT_OK) {

        Intent startPreview = new Intent(this.getContext(), PreviewActivity.class);
        startPreview.putExtra("path", path);
        startActivity(startPreview);
    }
    super.onActivityResult(requestCode, resultCode, data);
}

However, it is not showing up my preview custom activity. It is showing the common one.

Could someone help me?

Thank you

Answer 1

It won't show your activity, because the intent you specify is ACTION_IMAGE_CAPTURE which states:

Standard Intent action that can be sent to have the camera application capture an image and return it.

If you have your custom activity to handle camera capture/preview/etc. you need to call new Intent(Context, YourActivity.class)