除了可以为视图添加动画以外,还可以为视图的布局添加动画;
<RelativeLayout 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:paddingBottom="@dimen/activity_vertical_margin" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" tools:context=".MainActivity" > <LinearLayout android:layout_width="fill_parent" android:layout_height="fill_parent" android:layout_alignParentLeft="true" android:layout_alignParentTop="true" android:orientation="vertical" android:id="@+id/linerLayout1"> <Button android:id="@+id/button1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Button" /> <Button android:id="@+id/button1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Button" /> <Button android:id="@+id/button1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Button" /> <Button android:id="@+id/button1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Button" /> <Button android:id="@+id/button1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Button" /> </LinearLayout> </RelativeLayout>
代码:
@Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); LinearLayout layout= (LinearLayout)findViewById(R.id.linerLayout1); //设置缩放动画 ScaleAnimation scale=new ScaleAnimation(0, 1, 0, 1); scale.setDuration(3000); //delay(动画延迟):0~1f,当第一个动画执行到什么地方的时候,下一个动画开始执行 //LayoutAnimationController controller=new LayoutAnimationController(scale, 0); LayoutAnimationController controller=new LayoutAnimationController(scale, 0.5f); //动画的执行顺序:ORDER_NORMAL(从上往 下);ORDER_RANDOM(随机执行);ORDER_REVERSE(从下往上) // controller.setOrder(LayoutAnimationController.ORDER_NORMAL); controller.setOrder(LayoutAnimationController.ORDER_REVERSE); layout.setLayoutAnimation(controller); }
<pre name="code" class="java">//LayoutAnimationController controller=new LayoutAnimationController(scale, 0); //内部动画同时执行
<pre name="code" class="java">LayoutAnimationController controller=new LayoutAnimationController(scale, 0.5f); //内部动画延时执行
动画的执行顺序:ORDER_NORMAL(从上往 下):
ORDER_REVERSE(从下往上)