Android How to - Add animation to ListActivity








The following code shows how to Add animation to ListActivity.

Example

res/anim/list_animation.xml 

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android" >

    <alpha
        android:duration="50"
        android:fromAlpha="0"
        android:toAlpha="1" />

    <translate
        android:duration="100"
        android:fromYDelta="-100%"
        android:toYDelta="0%" />

</set>

Java code

//from   w  w  w. j av  a2s . c o  m
import android.app.ListActivity;
import android.os.Bundle;
import android.view.animation.AnimationUtils;
import android.view.animation.LayoutAnimationController;
import android.widget.ArrayAdapter;

public class MainActivity extends ListActivity {

  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    getListView().setLayoutAnimation(
        new LayoutAnimationController(AnimationUtils.loadAnimation(
            this, R.anim.list_animation), 0.5f));

    setListAdapter(new ArrayAdapter<String>(this,
        android.R.layout.simple_list_item_1, Countries.COUNTRIES));
  }
  
  public static final String[] COUNTRIES = new String[] {
      "Afghanistan", "Albania", "Algeria", "American Samoa", "Andorra",
      "Vietnam", "Wallis and Futuna", "Western Sahara", "Yemen",
      "Yugoslavia", "Zambia", "Zimbabwe" };  
}
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