TextSwitcher - Android Widgets Example

package com.myapp;

import android.os.Bundle;
import android.app.Activity;
import android.view.Gravity;
import android.view.Menu;
import android.view.View;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;
import android.widget.Button;
import android.widget.TextSwitcher;
import android.widget.TextView;
import android.widget.ViewSwitcher.ViewFactory;

public class MainActivity extends Activity implements ViewFactory  {

    private TextSwitcher txtSwitcher;

    private int mCounter = 0;
	
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
        txtSwitcher = (TextSwitcher) findViewById(R.id.textSwitcher1);
        txtSwitcher.setFactory(this);

        Animation in = AnimationUtils.loadAnimation(this,
                android.R.anim.fade_in);
        Animation out = AnimationUtils.loadAnimation(this,
                android.R.anim.fade_out);
        txtSwitcher.setInAnimation(in);
        txtSwitcher.setOutAnimation(out);

        Button btn1 = (Button) findViewById(R.id.button1);
        btn1.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                mCounter++;
                updateCounter();
            }
        });
        
        Button btn2 = (Button) findViewById(R.id.button2);
        btn2.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                mCounter--;
                updateCounter();
            }
        });

        updateCounter();
     
    }
    
  
    private void updateCounter() {
		// TODO Auto-generated method stub
    	txtSwitcher.setText(String.valueOf(mCounter));
	}


	@Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.activity_main, menu);
        return true;
    }


	public View makeView() {
		// TODO Auto-generated method stub
	    TextView txtView = new TextView(this);
	    txtView.setGravity(Gravity.TOP | Gravity.CENTER_HORIZONTAL);
	    txtView.setTextSize(36);
        return txtView;
	}

    
}

        txtSwitcher = (TextSwitcher) findViewById(R.id.textSwitcher1);
        txtSwitcher.setFactory(this);

        Animation in = AnimationUtils.loadAnimation(this,
                android.R.anim.fade_in);
        Animation out = AnimationUtils.loadAnimation(this,
                android.R.anim.fade_out);
        txtSwitcher.setInAnimation(in);
        txtSwitcher.setOutAnimation(out);

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

    <LinearLayout
         android:id="@+id/LinearLayout01"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_centerHorizontal="true"
         android:layout_marginTop="75dp" >
		    <TextSwitcher
		        android:id="@+id/textSwitcher1"
		        android:layout_width="wrap_content"
		        android:layout_height="wrap_content"
		        android:layout_marginTop="50dp" >
		    </TextSwitcher>
    </LinearLayout>

	<LinearLayout
		 android:id="@+id/LinearLayout02"
		 android:layout_width="wrap_content"
		 android:layout_height="wrap_content"
		 android:layout_centerHorizontal="true"
		 android:layout_marginTop="200dp" >
		    <Button
		        android:id="@+id/button1"
		        android:layout_width="wrap_content"
		        android:layout_height="wrap_content"
		        android:text="&lt;&lt;" />
		
		    <Button
		        android:id="@+id/button2"
		        android:layout_width="wrap_content"
		        android:layout_height="wrap_content"
		        android:text="&gt;&gt;" />
    </LinearLayout>		    

</RelativeLayout>