菜鳥啟程

<Button 
        android:id="@+id/start"
        android:layout_height="wrap_content"
        android:layout_width="wrap_content"
        android:text="hehehe"
        android:background="#00000000"
        />
           

    <ImageView

        android:id="@+id/imageView1"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:visibility="gone"

        android:layout_centerHorizontal="true"

        android:layout_centerVertical="true"

        android:src="@drawable/ic_launcher" />

@Override

 protected void onCreate(Bundle savedInstanceState) {

  super.onCreate(savedInstanceState);

  setContentView(R.layout.activity_main);

   bt=(Button) findViewById(R.id.start);

   iv = (ImageView) findViewById(R.id.imageView1);

  bt.setOnClickListener(new OnClickListener() {

   @Override

   public void onClick(View v) {

    iv.setVisibility(View.VISIBLE);

    Animation animation = AnimationUtils.loadAnimation(MainActivity.this, R.anim.donghuastart);

    iv.setAnimation(animation);

    animation.setFillAfter(true);

    animation.start();

   }

  });

  iv.setOnClickListener(new OnClickListener() {

   @Override

   public void onClick(View v) {

    Animation animation = AnimationUtils.loadAnimation(MainActivity.this, R.anim.donghuastop);

    iv.setAnimation(animation);

    animation.setFillAfter(true);

    animation.start();

    iv.setVisibility(View.GONE);

   }

  });

 }

縮小動畫

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
    android:shareInterpolator="false">
    
    
     <scale
        android:duration="7000"
        android:fromXScale="1.0"
        android:fromYScale="1.0"
        android:interpolator="@android:anim/accelerate_decelerate_interpolator"
        android:pivotX="50"
        android:pivotY="50"
        android:toXScale="0.0"
        android:toYScale="0.0" />

</set>
           

放大動畫

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
    android:shareInterpolator="false" >

    <scale
        android:duration="7000"
        android:fromXScale="0.0"
        android:fromYScale="0.0"
        android:interpolator="@android:anim/accelerate_decelerate_interpolator"
        android:pivotX="50%"
        android:pivotY="50%"
        android:toXScale="1.0"
        android:toYScale="1.0" />
    

</set>
           

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
    android:shareInterpolator="false">
    
    
     <scale
        android:duration="7000"
        android:fromXScale="1.0"
        android:fromYScale="1.0"
        android:interpolator="@android:anim/accelerate_decelerate_interpolator"
        android:pivotX="50"
        android:pivotY="50"
        android:toXScale="0.0"
        android:toYScale="0.0" />

</set>