同时将一个动画应用于多个视图 [英] Apply one animation to multiple views at the same time

问题描述

所以我想同时旋转几个视图，所有视图都使用相同的旋转规范.问题是由于某种原因，第二个元素的旋转作用不同.显然，这与动画对象在这两行代码之间实际改变状态有关.显然我可以创建一个单独的动画对象并应用它，但我觉得有一种更简单的方法(我有大约 15 个视图)

So Id like to rotate a handful of views all at the same time, all using the same rotation specs. The issue is that for some reason the rotation acts differently for the second element. Apparently this has to do with the animation object actually changing state in between those two lines of code. Obviously I could just create a seperate Animation object and apply it, but I feel like there is an easier way (I have about 15 views)

仅正确旋转第一个视图:

Rotates only the first view correctly:

Animation rotateAnim = AnimationUtils.loadAnimation(this, R.anim.rotationtoportrait);
target.startAnimation(rotateAnim);
lightBtn.startAnimation(rotateAnim);

两个都正确旋转

Animation rotateAnim = AnimationUtils.loadAnimation(this, R.anim.rotationtoportrait);
Animation rotateAnim2 = AnimationUtils.loadAnimation(this, R.anim.rotationtoportrait);
target.startAnimation(rotateAnim);
lightBtn.startAnimation(rotateAnim2);

XML:

<?xml version="1.0" encoding="utf-8"?>
<rotate
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:fromDegrees="-90"
    android:toDegrees="0"
    android:pivotX="50%"
    android:pivotY="50%"
    android:duration="500" android:fillAfter="true">

有人有想法么?

推荐答案

所以我想这是不可能的，所以我创建了一个辅助方法来将相同的动画应用于视图列表:

So I guess this just isn't possible, so I created a helper method to just apply the same animation to a list of views:

public void doRotations(ArrayList<View> views, int start, int end, int xprop, float xscale, int yprop, float yscale, int duration, Boolean fillAfter){

    for(int i = 0; i < views.size(); i++){
        RotateAnimation temp = new RotateAnimation(start, end, xprop, xscale, yprop, yscale);
        temp.setDuration(duration);
        temp.setFillAfter(fillAfter);
        views.get(i).startAnimation(temp);
    }
}

绝对是一个 hack，但我想这就是我现在能做的全部

Definitely a hack, but I guess thats all I'm able to do right now

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