how to decrease and increase alpha of bitmap for every second

Question

I want to decrease and increase bitmap of alpha every one second please help me.I want to create animation like fade in fade out bitmap on canvas.

This blog shows you how you can do that http://android-er.blogspot.in/2012/02/animate-fade-infade-out-by-changing.html — Ogen, Aug 01 '14 at 05:31
you can see this http://stackoverflow.com/questions/18229088/android-fade-out-bitmap-image-on-canvas — Kaushik, Aug 01 '14 at 06:08

score 0 · Answer 1 · answered Aug 01 '14 at 06:21

Try this simple way

public void animateImage(Context mContext,ImageView imgSplash){
         try{
             Animation myFadeInAnimation = AnimationUtils.loadAnimation(mContext, R.anim.fade_in);
             imgSplash.startAnimation(myFadeInAnimation);

         }catch (Exception e){

         }
     }

Add this fade_in.xml in res/anim folder

<?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="4000" android:repeatCount="0"/>
</set>

how to decrease and increase alpha of bitmap for every second

1 Answers1