In this example we shall show you how to programmatically set animations to a layout .
To achieve this one should perform the following steps:
Create an XML file and place it in a new folder inside the “res” folder of the Android Project
- Use an AccelerateInterpolator that dictates the way the animation changes its state
- Use the AnimationUtils to load the animation created on the xml file
as demonstrated in the code snippets that follow:
private void startAnimationPopOut() { LinearLayout myLayout = (LinearLayout) findViewById(R.id.anim_layout); Animation animation = AnimationUtils.loadAnimation(this,R.anim.bottom_out); animation.setAnimationListener(new AnimationListener() { @Override public void onAnimationStart(Animation animation) { } @Override public void onAnimationRepeat(Animation animation) { } @Override public void onAnimationEnd(Animation animation) { } }); myLayout.clearAnimation(); myLayout.startAnimation(animation); }<?xml version="1.0" encoding="utf-8"?> <set xmlns:android="http://schemas.android.com/apk/res/android" android:interpolator="@android:anim/accelerate_interpolator"> <translate android:fromYDelta="0%" android:toYDelta="60%" android:duration="700"> </translate> </set>
<translate android:fromYDelta="70%" android:toYDelta="0%" android:duration="700"> </translate>
<translate android:fromXDelta="-100%p" android:toXDelta="0%" android:duration="600"> </translate>
<translate android:fromXDelta="100%p" android:toXDelta="0%p" android:duration="600"> </translate>
<rotate android:fromDegrees="180" android:toDegrees="0" android:pivotX="50%" android:pivotY="50%" android:duration="600"> </rotate>
<scale android:toXScale="1.1" android:fromXScale="1.0" android:toYScale="1.1" android:fromYScale="1.0" android:pivotX="0%" android:pivotY="0%" android:startOffset="100" android:duration="2000"> </scale>
This was an example of how to create simple Animations in Android.
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