Create sample application that draw the circle, oval shape and square in android - android programming

Create sample application that draw the circle, oval shape and square.

Program:

Activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/activity_main"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.example.anksh.prac9.MainActivity">

    <ImageView
        android:layout_width="match_parent"
        android:layout_height="200dp"
        android:layout_marginTop="100dp"
        android:id="@+id/imageView2"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true" />

    <Button
        android:text="Start"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/bsrt1"
        android:layout_alignParentBottom="true"
        android:layout_alignParentStart="true"
        android:layout_marginBottom="17dp" />

    <Button
        android:text="Stop"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/Bsp2"
        android:layout_marginBottom="35dp"
        android:layout_alignParentBottom="true"
        android:layout_alignParentEnd="true" />

</RelativeLayout>

MainActivity.java

package com.example.anksh.prac9;

import android.graphics.drawable.AnimationDrawable;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;

public class MainActivity extends AppCompatActivity {
    Button bst2,bstr1;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        final ImageView gyroView = (ImageView) findViewById(R.id.imageView2);
        bstr1=(Button)findViewById(R.id.bsrt1);
        bst2=(Button)findViewById(R.id.Bsp2);

        gyroView.setBackgroundResource(R.drawable.file1); //1
        //create an animation drawable using the background
        final AnimationDrawable gyroAnimation = (AnimationDrawable) gyroView.getBackground();//2

        //start the animation
        bstr1.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub

                gyroView.post(new Runnable() {

                    @Override
                    public void run() {
                        // TODO Auto-generated method stub
                        gyroAnimation.start(); //3
                    }
                });
            }
        });

        bst2.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                gyroAnimation.stop();
                System.exit(0);
            }
        });
    }
    }

File1.xml

<?xml version="1.0" encoding="utf-8"?>

<animation-list xmlns:android="http://schemas.android.com/apk/res/android"
    android:oneshot="false" >

    <item
        android:drawable="@drawable/a1"
        android:duration="200"/>
    <item
        android:drawable="@drawable/a2"
        android:duration="100"/>
    <item
        android:drawable="@drawable/a3"
        android:duration="100"/>
    <item
        android:drawable="@drawable/a4"
        android:duration="100"/>
    <item
        android:drawable="@drawable/a5"
        android:duration="100"/>
    <item
        android:drawable="@drawable/a6"
        android:duration="100"/>
    <item
        android:drawable="@drawable/a7"
        android:duration="100"/>
    <item
        android:drawable="@drawable/a8"
        android:duration="100"/>

</animation-list>

Output: