Android, How to use animation in order to show blinking?
android, background, handler, image
Solution
Found the answer you need: https://stackoverflow.com/a/4852468/1352556
Basically you want an alpha animation. I believe this will make the entire button flash however, do you only want the red dot flashing?
Problem
In my application, I have recording button. I want when user clicks on it each one second i change the background in order to simulate blinking. I created a handler and set it to 1 second therefore each one second this handler runs. Here i change the background. this my code: ``` mUpdateUITimerTask = new Runnable() { public void run() { // Simulating blinking for capture button if(bolToggle) { bolToggle = false; captureButton.setBackgroundDrawable(getResources().getDrawable(R.drawable.btn_record_blink)); } else { bolToggle = true; captureButton.setBackgroundDrawable(getResources().getDrawable(R.drawable.btn_record)); } mHandler.postDelayed(mUpdateUITimerTask, 1000); } }; ``` When I run the app i see the changes but its not clear. buttons are like this: When i run the application, red image is showing ok but for white image, it shows red image with a little white halo around it. I tried to put `captureButton.setBackgroundColor(Color.TRANSPARENT);` before setting background but result was same. any suggestion would be appreciated. Thank you.