MainActivity.java
package com.example.mysamll.app.imgscale;
import android.app.Activity;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;
import android.widget.ImageView;
import android.widget.Toast;
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Animation animation = AnimationUtils.loadAnimation(this,R.anim.enlarge);
animation.setFillAfter(true);
((ImageView) findViewById(R.id.my_img)).startAnimation(animation);
animation.setAnimationListener(new Animation.AnimationListener() {
@Override
public void onAnimationStart(Animation animation) {
}
@Override
public void onAnimationEnd(Animation animation) {
Toast.makeText(MainActivity.this,"stop!",Toast.LENGTH_SHORT).show();
}
@Override
public void onAnimationRepeat(Animation animation) {
}
});
}
}
actity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<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"
tools:context="com.example.mysamll.app.imgscale.MainActivity">
<ImageView
android:id="@+id/my_img"
android:src="@mipmap/bird"
android:scaleType="fitXY"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</RelativeLayout>
/res/anim/enlarge.xml
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:shareInterpolator="false">
<scale
android:duration="8000"
android:fromXScale="1.0"
android:fromYScale="1.0"
android:pivotX="50%"
android:pivotY="50%"
android:toXScale="1.3"
android:toYScale="1.3"
/>
</set>
