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Android - How to watermark image before saving it


You are passing a file Uri to save the taken picture. So try this. I have Changed your onActivityResult method.

@Override
protected void onActivityResult(int requestCode,
int resultCode, Intent data) {
if (resultCode == RESULT_OK) {
    if (mCurrentPhotoPath != null) {
        Intent mediaScanIntent = new
Intent("android.intent.action.MEDIA_SCANNER_SCAN_FILE");
        File f = new File(mCurrentPhotoPath);
        Uri contentUri = Uri.fromFile(f);
        Bitmap photo =
Media.getBitmap(getContentResolver(), contentUri
);
        photo=mark(photo, yourWatreStringHere);
        OutputStream fOut = null;
        fOut = new FileOutputStream(f);
        photo.compress(Bitmap.CompressFormat.JPEG,
85, fOut); // saving the Bitmap to a file
compressed as a JPEG with 85% compression rate
        fOut.flush();
        fOut.close(); // do not forget to close
the stream
        mediaScanIntent.setData(contentUri);
        this.sendBroadcast(mediaScanIntent);
        mCurrentPhotoPath = null;
    }
    dispatchTakePictureIntent(ACTION_TAKE_PHOTO);
}
else{
finish();
}
}

Categories : Android

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