Android——Animation笔记:布局动画

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普通的布局动画：
java代码实现

import android.view.animation.ScaleAnimation;import android.view.animation.LayoutAnimationController; LinearLayout ll = (LinearLayout)findViewById(R.id.ll);        ScaleAnimation scaleAnimation = new ScaleAnimation(0,1,0,1);        scaleAnimation .setDuration(1000);        LayoutAnimationController controller = new LayoutAnimationController(scaleAnimation,0.5f);        controller.setOrder(LayoutAnimationController.ORDER_NORMAL);        ll.setLayoutAnimation(controller);

xml实现：

<?xml version="1.0" encoding="utf-8"?><set xmlns:android="http://schemas.android.com/apk/res/android"    android:interpolator="@android:anim/accelerate_interpolator"    android:shareInterpolator="true"    >    <alpha        android:fromAlpha="0"        android:toAlpha="1"        android:duration="3000"            /></set>

<?xml version="1.0" encoding="utf-8"?><layoutAnimation    xmlns:android="http://schemas.android.com/apk/res/android"    android:delay="0.5"    android:animationOrder="normal"    android:animation="@anim/alpha"    />

<ListView        android:id="@+id/listView1"        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:layoutAnimation="@anim/layoutanimation"/>

名词理解：插值器Interpolators，定义动画的变化速率。

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