Android UI How to - Flip ViewFlipper with animation

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The following code shows how to Flip ViewFlipper with animation.

Example

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
  <ViewFlipper android:id="@+id/details"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
  </ViewFlipper>
</LinearLayout>

res/anim/push_left_in.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
  <translate android:fromXDelta="100%p" android:toXDelta="0" android:duration="300"/>
  <alpha android:fromAlpha="0.0" android:toAlpha="1.0" android:duration="300" />
</set>

res/anim/push_left_out.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
  <translate android:fromXDelta="0" android:toXDelta="-100%p" android:duration="300"/>
  <alpha android:fromAlpha="1.0" android:toAlpha="0.0" android:duration="300" />
</set>

Java code

/***/*from  w w  w . j  a v  a 2  s  . c  o m*/
  Copyright (c) 2008-2009 CommonsWare, LLC
  
  Licensed under the Apache License, Version 2.0 (the "License"); you may
  not use this file except in compliance with the License. You may obtain
  a copy of the License at
    http://www.apache.org/licenses/LICENSE-2.0
  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  See the License for the specific language governing permissions and
  limitations under the License.
*/

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.view.animation.AnimationUtils;
import android.widget.Button;
import android.widget.ViewFlipper;

public class MainActivity extends Activity {
  static String[] items={"lorem", "ipsum", "dolor", "sit", "amet",
                          "consectetuer", "adipiscing", "elit",
                          "morbi", "vel", "ligula", "vitae",
                          "arcu", "aliquet", "mollis", "etiam",
                          "vel", "erat", "placerat", "ante",
                          "porttitor", "sodales", "pellentesque",
                          "augue", "purus"};
  ViewFlipper flipper;
  
  @Override
  public void onCreate(Bundle icicle) {
    super.onCreate(icicle);
    setContentView(R.layout.main);
    
    flipper=(ViewFlipper)findViewById(R.id.details);
    
    flipper.setInAnimation(AnimationUtils.loadAnimation(this,R.anim.push_left_in));
    flipper.setOutAnimation(AnimationUtils.loadAnimation(this,R.anim.push_left_out));

    for (String item : items) {
      Button btn=new Button(this);
      
      btn.setText(item);
      
      flipper.addView(btn,
                      new ViewGroup.LayoutParams(
                              ViewGroup.LayoutParams.FILL_PARENT,
                              ViewGroup.LayoutParams.FILL_PARENT));
    }
    
    flipper.setFlipInterval(2000);
    flipper.startFlipping();
  }
}

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