1.新建一anim文件夹,里面建立一myanim.xml
<?xml version="1.0" encoding="utf-8"?> <set xmlns:android="http://schemas.android.com/apk/res/android"> <alpha android:fromAlpha="0.1" android:toAlpha="1.0" android:duration="2000" /> <!-- 透明度的转换 --> <scale android:interpolator="@android:anim/accelerate_decelerate_interpolator" android:fromXScale="0.0" android:toXScale="1.4" android:fromYScale="0.0" android:toYScale="1.4" android:pivotX="50%" android:pivotY="50%" android:fillAfter="false" android:duration="3000" /> <!-- 尺寸的变换 --> <translate android:fromXDelta="30" android:toXDelta="0" android:fromYDelta="30" android:toYDelta="50" android:duration="3000" /> <!-- 位置的变换 --> <rotate android:interpolator="@android:anim/accelerate_decelerate_interpolator" android:fromDegrees="0" android:toDegrees="+350" android:pivotX="50%" android:pivotY="50%" android:duration="3000" /> <!-- 旋转变换 --> </set>
2.
<LinearLayout 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" android:orientation="vertical" tools:context="wyf.ytl.MainActivity" > <ImageView android:id="@+id/myImageView" android:layout_width="match_parent" android:layout_height="match_parent" android:src="@drawable/img" /> </LinearLayout>
3.
public class MainActivity extends ActionBarActivity { Animation myAnimation = null; ImageView myImageView = null; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); //加载动画 myAnimation = AnimationUtils.loadAnimation(this, R.anim.myanim); myImageView = (ImageView) findViewById(R.id.myImageView); //启动动画 myImageView.startAnimation(myAnimation); }