Android - Blinking image using the Alpha fade animation

Question

I've been struggling for a few days on this, finally just decided to ask. It's so simple I've got to be missing something very basic.

I have an XML layout page with an image defined. I have two anim XML pages, one to change alpha from 0 to 1, and the other from 1 to 0 in order to create a "blinking" effect. So the alphaAnimation is defined in XML, I just need to call it.

The image pops up, but there's no looping blinking effect.

public class blinker extends Activity {     //create name of animation Animation myFadeInAnimation; Animation myFadeOutAnimation;  /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) {     super.onCreate(savedInstanceState);     setContentView(R.layout.scanning_view);   //grab the imageview and load the animations     ImageView myImageView = (ImageView) findViewById(R.id.blinkingView01);      Animation myFadeInAnimation = AnimationUtils.loadAnimation(null, R.anim.fade_in);     Animation myFadeOutAnimation = AnimationUtils.loadAnimation(null, R.anim.fade_out);  //fade it in, and fade it out.      myImageView.startAnimation(myFadeInAnimation);     myImageView.startAnimation(myFadeOutAnimation);      } }    

Two XML Animation layouts in Anim resource:

<?xml version="1.0" encoding="UTF-8"?>  <set xmlns:android="http://schemas.android.com/apk/res/android">      <alpha android:fromAlpha="0.0"      android:toAlpha="1.0"      android:interpolator="@android:anim/accelerate_interpolator"       android:duration="50" android:repeatCount="infinite"/>   </set>  

And the other:

 <?xml version="1.0" encoding="UTF-8"?>  <set xmlns:android="http://schemas.android.com/apk/res/android">      <alpha android:fromAlpha="1.0" android:toAlpha="0.0"      android:interpolator="@android:anim/accelerate_interpolator"       android:duration="1000" android:repeatCount="infinite"/>  </set> 

Answer 1

The best way to tween fade :

ImageView myImageView = (ImageView) findViewById(R.id.imageView2);  Animation myFadeInAnimation = AnimationUtils.loadAnimation(Splash.this, R.anim.tween); myImageView.startAnimation(myFadeInAnimation); 

in your res/anim/ create tween.xml tween 1s start opacity 0 to 1 and reverse infinit...

<?xml version="1.0" encoding="utf-8"?> <set xmlns:android="http://schemas.android.com/apk/res/android"> <alpha     android:fromAlpha="0.0"     android:toAlpha="1.0"     android:duration="1000"      android:repeatMode="reverse"     android:repeatCount="infinite" /> </set> 

Answer 2

Why not use android:repeatMode="reverse"