Working with camera and gallery

Question

I am with the following problem, in my application I take a photo and present her in a imageView, but when I take the photo she gets the good quality in the gallery imageView no, if it is a text not even to read, lower I will put the camera code

private void cameraIntent() {
    Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
    startActivityForResult(intent, REQUEST_CAMERA);
}

private void onCaptureImageResult(Intent data) {
    bitmap = (Bitmap) data.getExtras().get("data");
    ByteArrayOutputStream bytes = new ByteArrayOutputStream();
    bitmap.compress(Bitmap.CompressFormat.PNG, 100, bytes);

    File destination = new File(Environment.getExternalStorageDirectory(), System.currentTimeMillis() + ".jpg");
    FileOutputStream fo;

    try {
        destination.createNewFile();
        fo = new FileOutputStream(destination);
        fo.write(bytes.toByteArray());
        fo.close();
    } catch (FileNotFoundException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }

    imageView.setImageBitmap(bitmap);

    fab.setVisibility(View.VISIBLE);
}

I imagine changing the way you search for the photo solves the problem.

In this same application also has the option to select an image from the gallery and in this option the image comes perfect without change in quality.

 private void galleryIntent() {
    Intent intent = new Intent();
    intent.setType("image/*");
    intent.setAction(Intent.ACTION_GET_CONTENT);
    startActivityForResult(Intent.createChooser(intent, "Select File"),SELECT_FILE);
}

@SuppressWarnings("deprecation")
private void onSelectFromGalleryResult(Intent data) {
    if (data == null)
        return;
    imagemUrl = data.getDataString();
    if (imagemUrl != null) {
        Glide
                .with(this)
                .load(imagemUrl)
                .into(imageView);
    }
    fab.setVisibility(View.VISIBLE);

}

Answer 1

The problem is simple, but it is also a common source of confusion of who is starting to work with image capture with Intent on android.

The 'X' of the question is here: bitmap = (Bitmap) data.getExtras().get("data");

This Extras field, returned by the camera intention, does not keep the captured image, but a small thumbnail (thumbnail) of the image.

The correct thing, when working with the camera on android, is to inform the intention of camera the target file that you want to be generated with the captured image (in full resolution). For this use the code below:

Uri outputUri;

private void cameraIntent() {
    Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
    // outputUri precisa apontar para um arquivo que seu app tenha direito de gravar
    outputUri = getTempCameraUri();
    intent.putExtra(MediaStore.EXTRA_OUTPUT, outputUri);
    startActivityForResult(intent, REQUEST_CAMERA);
}

private Uri getTempCameraUri() {
    try {
        // uso createTempFile por conveniência
        File file = File.createTempFile("camera", ".jpg", this.getExternalCacheDir());
        // se estiver em um Fragment, use getActivity() ao invés de this na linha anterior
        return Uri.fromFile(file);
    } catch (IOException e) {
        e.printStackTrace();
    }
    return null;
}

After the execution of the camera intention, when the user returns, the photo taken by the user will be recorded in outputUri. Now just modify your code to:

private void onCaptureImageResult(Intent data) {
    if (outputUri == null)
        return;

    Glide
        .with(this)
        .load(outputUri)
        .centerCrop() // não deixe de aplicar alguma transformação!!!
        .into(imageView);
    }
    fab.setVisibility(View.VISIBLE);
}

And voilà!