Bounce

MainActivity.java
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;
import android.widget.Button;
import android.widget.ImageView;
public class MainActivity extends AppCompatActivity {
  Button btnBounce;
  @Override 
   protected void onCreate(Bundle savedInstanceState) {
   super.onCreate(savedInstanceState);
   setContentView(R.layout.activity_main);
   btnBounce = (Button) findViewById(R.id.idbtnBounce);
   btnBounce.setOnClickListener(new View.OnClickListener() {
    @Override 
     public void onClick(View v) {
     ImageView image = (ImageView) findViewById(R.id.idImageView);
     Animation animation = AnimationUtils.loadAnimation(getApplicationContext(), 23 R.anim.bounce);
     image.startAnimation(animation);
   }
  });
 }
}


activity_main.xml
<?xml version="1.0" encoding="utf-8"?>  
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:tools="http://schemas.android.com/tools"
     android:id="@+id/activity_main" 
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:orientation="vertical" 
     tools:context=".MainActivity"> 
    
    <!-- TODO: Update blank fragment layout -->  
    
    <ImageView 
     android:layout_weight="4" 
     android:layout_width="match_parent" 
     android:layout_height="match_parent" 
     android:id="@+id/idImageView" 
     android:src="@mipmap/ic_launcher"/> 
    
    <Button 
     android:layout_margin="4dp" 
     android:layout_width="match_parent"
     android:layout_height="wrap_content" 
     android:id="@+id/idbtnBounce" 
     android:text="Bounce" /> 
</LinearLayout>  


bounce.xml
<set
    xmlns:android="http://schemas.android.com/apk/res/android"
     android:fillAfter="true"
     android:interpolator="@android:anim/bounce_interpolator"> 
    
    <scale 
     android:duration="1000" 
     android:fromXScale="1.0"
     android:fromYScale="0.0" 
     android:toXScale="1.0" 
     android:toYScale="1.0" /> 
</set>  ​

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