Android xml实现animation的4种动画效果实例代码

<?xml version="1.0" encoding="UTF-8"?><set xmlns:android="http://schemas.android.com/apk/res/android"android:interpolator="@android:anim/accelerate_interpolator"><!-- 渐变透明的动画效果 --><!--fromAlpha 动画起始透明的 1.0完全不透明toAlpha 动画结束时透明的 0.0完全透明startOffset 设置启动时间duration 属性动画持续时间--><alpha android:fromAlpha="1.0"android:toAlpha="0.0"android:startOffset="500"android:duration="5000"/></set>

<?xml version="1.0" encoding="UTF-8"?><set xmlns:android="http://schemas.android.com/apk/res/android"android:interpolator="@android:anim/accelerate_interpolator"><!-- 画面转移旋转动画效果 --><!--fromDegrees开始角度toDegrees结束角度pivotX设置旋转时的X轴坐标--><rotate android:fromDegrees="0"android:toDegrees="+360"android:pivotX="50%"android:pivotY="50%"android:duration="5000"/></set>

<?xml version="1.0" encoding="UTF-8"?><set xmlns:android="http://schemas.android.com/apk/res/android"android:interpolator="@android:anim/accelerate_interpolator"><!-- 渐变尺寸伸缩动画效果 --><!--fromXScale 起始x轴坐标toXScale 止x轴坐标fromYScale 起始y轴坐标toYScale 止y轴坐标pivotX 设置旋转时的X轴坐标pivotY 设置旋转时的Y轴坐标duration 持续时间--><scale android:fromXScale="1.0"android:toXScale="0.0"android:fromYScale="1.0"android:toYScale="0.0"android:pivotX="50%"android:pivotY="50%"android:duration="5000"/></set>

<?xml version="1.0" encoding="UTF-8"?><set xmlns:android="http://schemas.android.com/apk/res/android"android:interpolator="@android:anim/accelerate_interpolator"><!-- 画面转移位置移动动画效果 --><translate android:fromXDelta="0%"android:toXDelta="100%"android:fromYDelta="0%"android:toYDelta="0%"android:duration="5000" /></set>

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"android:layout_width="match_parent"android:layout_height="match_parent"android:orientation="vertical" ><ImageView android:id="@+id/image1"android:layout_width="match_parent"android:layout_height="200px"/><ImageView android:id="@+id/image2"android:layout_width="match_parent"android:layout_height="200px"/><ImageView android:id="@+id/image3"android:layout_width="match_parent"android:layout_height="200px"/><ImageView android:id="@+id/image4"android:layout_width="match_parent"android:layout_height="200px"/></LinearLayout>

public class AnimationDemo extends Activity{private Animation animation,animation1,animation2,animation3;private ImageView image1,image2,image3,image4;@Overrideprotected void onCreate(Bundle savedInstanceState) {// TODO Auto-generated method stubsuper.onCreate(savedInstanceState);setContentView(R.layout.animation);initView();}public void initView(){animation=AnimationUtils.loadAnimation(AnimationDemo.this, R.anim.rotate);animation1=AnimationUtils.loadAnimation(AnimationDemo.this, R.anim.scale);animation2=AnimationUtils.loadAnimation(AnimationDemo.this, R.anim.alpha);animation3=AnimationUtils.loadAnimation(AnimationDemo.this, R.anim.translate);image1=(ImageView)findViewById(R.id.image1);image1.setImageResource(R.drawable.jpeg);image2=(ImageView)findViewById(R.id.image2);image2.setImageResource(R.drawable.jpg);image3=(ImageView)findViewById(R.id.image3);image3.setImageResource(R.drawable.png);image4=(ImageView)findViewById(R.id.image4);image4.setImageResource(R.drawable.gif);image1.startAnimation(animation);image2.startAnimation(animation1);image3.startAnimation(animation2);image4.startAnimation(animation3);}}