Android ViewAnimator






Android ViewAnimator



  1. Static ViewAnimator Creation in Android
  2. Dynamic ViewAnimator Creation in Android


Static ViewAnimator Creation in Android

Step 1 : Select File -> New -> Project -> Android Application Project (or) Android Project. Fill the forms and click "Finish" button. If you have any doubt regarding create a new project Click Here.

Step 2 : Open res -> layout -> activity_main.xml (or) main.xml and add following code :


<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" >

    <ViewAnimator
        android:id="@+id/viewAnimator1"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content">
     
        <ImageView
        android:id="@+id/imageView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:layout_marginTop="100dp"
        android:src="@drawable/ic_launcher" />

     <TextView
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:layout_marginTop="100dp"
        android:textSize="20dp"
        android:text="TextView" />

     <Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_marginTop="100dp"     
android:text="Button" />
     
    </ViewAnimator>
 
</RelativeLayout>


Step 3 : Open src -> package -> MainActivity.java and add following code :

package com.gudivada.hemanthsomaraju;

import android.app.Activity;
import android.os.Bundle;
import android.view.MotionEvent;
import android.view.animation.AlphaAnimation;
import android.view.animation.Animation;
import android.widget.ViewAnimator;

public class MainActivity extends Activity {

    ViewAnimator mContainer;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        initContainer();
    }

    private void initContainer() {
     mContainer = (ViewAnimator)findViewById(R.id.viewAnimator1);

     Animation inAnim = new AlphaAnimation(0, 1);
     inAnim.setDuration(1000);
     Animation outAnim = new AlphaAnimation(1, 0);
     outAnim.setDuration(1000);

     mContainer.setInAnimation(inAnim);
     mContainer.setOutAnimation(outAnim);
    }

    @Override
    public boolean onTouchEvent(MotionEvent event) {
     if(event.getAction() == MotionEvent.ACTION_UP) {
     mContainer.showNext();
     }
     return true;
    }
}

Step 4 : Open AndroidManifest.xml and add following code :

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.gudivada.hemanthsomaraju"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="19" />
<uses-permission android:name="android.permission.INTERNET"/>
    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="com.gudivada.hemanthsomaraju.MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>



Step 5 : Our output will be like this :


 









Dynamic ViewAnimator Creation in Android

Step 1 : Select File -> New -> Project -> Android Application Project (or) Android Project. Fill the forms and click "Finish" button. If you have any doubt regarding create a new project Click Here.

Step 2 : Open res -> layout -> activity_main.xml (or) main.xml and add following code :

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

</RelativeLayout>


Step 3 : Open src -> package -> MainActivity.java and add following code :


package com.gudivada.hemanthsomaraju;

import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.view.MotionEvent;
import android.view.animation.AlphaAnimation;
import android.view.animation.Animation;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.RelativeLayout;
import android.widget.TextView;
import android.widget.ViewAnimator;
import android.widget.RelativeLayout.LayoutParams;

public class MainActivity extends Activity {

RelativeLayout rl;
ViewAnimator view;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
     
        rl = (RelativeLayout) findViewById(R.id.rl);
     
        view = new ViewAnimator (MainActivity.this);
     
        RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams
         ((int) LayoutParams.WRAP_CONTENT, (int) LayoutParams.WRAP_CONTENT);
     
        params.addRule(RelativeLayout.CENTER_IN_PARENT);
     
        RelativeLayout.LayoutParams param1 = new RelativeLayout.LayoutParams
         ((int) LayoutParams.WRAP_CONTENT, (int) LayoutParams.WRAP_CONTENT);
     
        param1.addRule(RelativeLayout.CENTER_IN_PARENT);
     
        RelativeLayout.LayoutParams param2 = new RelativeLayout.LayoutParams
         ((int) LayoutParams.WRAP_CONTENT, (int) LayoutParams.WRAP_CONTENT);
     
        param2.addRule(RelativeLayout.CENTER_IN_PARENT);
     
        RelativeLayout.LayoutParams param3 = new RelativeLayout.LayoutParams
         ((int) LayoutParams.WRAP_CONTENT, (int) LayoutParams.WRAP_CONTENT);
     
        param3.addRule(RelativeLayout.CENTER_IN_PARENT);
     
        view.setLayoutParams(params);
             
        ImageView img = new ImageView(MainActivity.this);
        img.setImageResource(R.drawable.ic_launcher);
     
        img.setLayoutParams(param1);
     
        Button b = new Button(MainActivity.this);
        b.setText("Button");
        b.setLayoutParams(param2);
     
        TextView tv = new TextView(MainActivity.this);
        tv.setText("Text");
        tv.setTextSize(20);
        tv.setLayoutParams(param3);
     
        view.addView(img);
        view.addView(b);
        view.addView(tv);
     
        rl.addView(view);
     
        Animation inAnim = new AlphaAnimation (0,1);
        inAnim.setDuration(1000);
     
        Animation outAnim = new AlphaAnimation(1, 0);
     outAnim.setDuration(1000);
    
     view.setInAnimation(inAnim);
     view.setOutAnimation(outAnim);
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }
 
    @Override
    public boolean onTouchEvent(MotionEvent event) {
     if(event.getAction() == MotionEvent.ACTION_UP) {
     view.showNext();
     }
     return true;
    }
}

Step 4 : Open AndroidManifest.xml and add following code :

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.gudivada.hemanthsomaraju"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="19" />
<uses-permission android:name="android.permission.INTERNET"/>
    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="com.gudivada.hemanthsomaraju.MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>


Step 5 : Our output will be like this :