View Animation 视图动画全解

先看一下图：

一 res/anim/目录下新建xml文件

1.alpha （透明度）标签：va_alpha.xml

<?xml version="1.0" encoding="utf-8"?> <alpha xmlns:android="http://schemas.android.com/apk/res/android" android:duration="4000" android:fromAlpha="0.0" android:toAlpha="1.0"> </alpha>

2.scale（缩放） 标签：va_scale.xml

<?xml version="1.0" encoding="utf-8"?> <scale xmlns:android="http://schemas.android.com/apk/res/android" android:duration="1000" android:fromXScale="1.0" android:fromYScale="1.0" android:pivotX="0%" android:pivotY="0%" android:toXScale="0.5" android:toYScale="0.5" android:fillAfter="true" android:repeatCount="1" android:startOffset="1000" />

3.rotate（旋转）标签：va_rotate.xml

<?xml version="1.0" encoding="utf-8"?> <rotate xmlns:android="http://schemas.android.com/apk/res/android" android:duration="1000" android:pivotX="50%" android:pivotY="0%" android:fromDegrees="-40" android:toDegrees="40" android:interpolator="@android:anim/accelerate_decelerate_interpolator" android:repeatMode="reverse" android:repeatCount="-1" /> 4.translation（移动） 标签：va_translation.xml

<?xml version="1.0" encoding="utf-8"?> <translate xmlns:android="http://schemas.android.com/apk/res/android" android:fromXDelta="0%" android:fromYDelta="0" android:toXDelta="100%p" android:toYDelta="0" android:duration="2000" />

5.set（动画集）标签：va_set.xml

<?xml version="1.0" encoding="utf-8"?> <set xmlns:android="http://schemas.android.com/apk/res/android" android:duration="1000" android:fillAfter="true"> <scale xmlns:android="http://schemas.android.com/apk/res/android" android:fromXScale="1.0" android:fromYScale="1.0" android:pivotX="0%" android:pivotY="0%" android:toXScale="0.5" android:toYScale="0.5"/> <rotate xmlns:android="http://schemas.android.com/apk/res/android" android:fromDegrees="0" android:pivotX="50%" android:pivotY="50%" android:toDegrees="360"/> </set>

二   res/layout/布局文件添加

<ImageView android:id="@+id/test_iv" android:layout_gravity="center" android:layout_width="wrap_content" android:layout_height="wrap_content" android:src="@drawable/rotate"/>

三  代码使用：

//mIvTest.startAnimation(AnimationUtils.loadAnimation(MainActivity.this, R.anim.va_alpha)); //mIvTest.startAnimation(AnimationUtils.loadAnimation(MainActivity.this, R.anim.va_scale)); //mIvTest.startAnimation(AnimationUtils.loadAnimation(MainActivity.this, R.anim.va_translate)); mIvTest.startAnimation(AnimationUtils.loadAnimation(MainActivity.this, R.anim.va_rotate)); //mIvTest.startAnimation(AnimationUtils.loadAnimation(MainActivity.this, R.anim.va_set));

效果：依次：alpha、scale、rotate、translation、set

转载于:https://www.cnblogs.com/toly-top/p/9782040.html

相关资源：JAVA上百实例源码以及开源项目