动画系列——LayoutAnimation与GridLayoutAnimation

LayoutAnimation与GridLayoutAnimation

LayoutAnimation

​ 对viewGroup及其子类添加进入统一动画的LayoutAnimation和针对grideView添加进入动画的gridLayoutAnimation

使用示例

​ layoutAnimation属性只在ViewGroup及其子类创建时有效

<layoutAnimation xmlns:android="http://schemas.android.com/apk/res/android"
                 android:delay="1"
                 android:animationOrder="normal"
                 android:animation="@anim/slide_in_left"/>

Animation animation= AnimationUtils.loadAnimation(this,R.anim.slide_in_left);   
LayoutAnimationController controller = new LayoutAnimationController(animation);   
controller.setOrder(LayoutAnimationController.ORDER_REVERSE);   
controller.setDelay(0.3f);  
mListView.setLayoutAnimation(controller);
mListView.startLayoutAnimation();



<set xmlns:android="http://schemas.android.com/apk/res/android" 			android:duration="1000">
    <translate android:fromXDelta="-50%p" android:toXDelta="0"/>
    <alpha android:fromAlpha="0.0" android:toAlpha="1.0"/>
set>

<ListView
          android:id="@+id/listview"
          android:layout_width="match_parent"
          android:layout_height="match_parent"
          android:layoutAnimation="@anim/layout_animation"/>

属性解析

属性	解析
delay	每个item延时时间的百分比，默认0.5，即在上一个item动画开始后的0.5倍时间后开始动画
animationOrder	动画顺序，normal：正序，reverse：倒序，random：随机
animation	指定每个item的入场动画，只能使用animation动画

GridLayoutAnimation

使用示例

<gridLayoutAnimation xmlns:android="http://schemas.android.com/apk/res/android"
                     android:rowDelay="75%"
                     android:columnDelay="60%"
                     android:directionPriority="none"
                     android:direction="bottom_to_top|right_to_left"
                     android:animation="@android:anim/slide_in_left"/>

Animation animation = AnimationUtils.loadAnimation(MyActivity.this,R.anim.slide_in_left);
GridLayoutAnimationController controller = new GridLayoutAnimationController(animation);
controller.setColumnDelay(0.75f);
controller.setRowDelay(0.5f);        controller.setDirection(GridLayoutAnimationController.DIRECTION_BOTTOM_TO_TOP|GridLayoutAnimationController.DIRECTION_LEFT_TO_RIGHT);
controller.setDirectionPriority(GridLayoutAnimationController.PRIORITY_NONE);
gridView.setLayoutAnimation(controller);
gridView.tartLayoutAnimation();

属性解析

属性	解析
rowDelay	每一行动画开始的延迟
columnDelay	每一列动画开始的延迟
directionPriority	方向优先级，row：行优先，collumn：列优先，none：同时进行。如，行优先，则一行一行的执行动画，第一行执行完后再执行第二行，其他同理
direction	动画方向，默认left_to_right。left_to_right，right_to_left，top_to_bottom，bottom_to_top，四个值可以使用"|"连接
animation	指定每个item的入场动画，只能使用animation动画

自定义LayoutAnimation

​ 自定义类继承LayoutAnimationController或GridLayoutAnimationController

public class MyGridLayoutAnimationController extends GridLayoutAnimationController {
    public MyGridLayoutAnimationController(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    public MyGridLayoutAnimationController(Animation animation) {
        super(animation);
    }

    public MyGridLayoutAnimationController(Animation animation, float columnDelay, float rowDelay) {
        super(animation, columnDelay, rowDelay);
    }
}