Android-等待动画完成再继续吗？ [英] Android - wait for animation to finish before continuing?

问题描述

我花了很长时间尝试找出在继续代码之前如何等待动画完成。
到目前为止，我已经尝试了while（animation.hasEnded（）== False），使用Thread.sleep，使用计时器，但似乎什么也没用。

I've spend quite a while trying to find out how to wait for an animation to finish before continuing the code. So far I've tried while(animation.hasEnded() == False), using Thread.sleep, using a timer but can't seem to get anything to work.

出现了很多次的事情是在动画中添加了一个动画侦听器，我已经尝试过，但是不确定如何进一步发展。

Something that cropped up quite a few times was to add an Animation Listener to the animation, which I've tried but not sure how to progress this further.

我创建动画，开始动画，然后有一行代码，我只想在动画完成后执行：

I create the animation, start the animation and then have a line of code after, which I only want to be executed after the animation has finished:

    Animation moveDown = allAnimStuff(duration); //creates animation 

    image.startAnimation(moveDown); // Start the animation
    displayScore(score); // wait for animation to finish before executing this line

，这是使用的allAnimStuff（duration）方法创建动画：

and here is the allAnimStuff(duration) method used to create the animation:

private Animation allAnimStuff(final long duration) {

        Animation moveDown = new TranslateAnimation(image.getX(), image.getX(), (-image.getHeight()), pxHeight - image.getHeight() / 2); //creates animation
        moveDown.setDuration(duration);
        moveDown.setFillAfter(false);

        moveDown.setAnimationListener(new Animation.AnimationListener() {
            @Override
            public void onAnimationStart(Animation animation) {
                 //some code to make it wait here? 
            }

            @Override
            public void onAnimationEnd(Animation animation) {
                image.setY((pxHeight / 2 - image.getHeight()));

            }

            @Override
            public void onAnimationRepeat(Animation animation) {
            }
        });


        return moveDown;
    }

推荐答案

在onAnimationEnd方法中编写以下行

write following line in onAnimationEnd method

 displayScore(score);

例如

private Animation allAnimStuff(final long duration) {

        Animation moveDown = new TranslateAnimation(image.getX(), image.getX(), (-image.getHeight()), pxHeight - image.getHeight() / 2); //creates animation
        moveDown.setDuration(duration);
        moveDown.setFillAfter(false);

        moveDown.setAnimationListener(new Animation.AnimationListener() {
            @Override
            public void onAnimationStart(Animation animation) {
                 //some code to make it wait here? 
            }

            @Override
            public void onAnimationEnd(Animation animation) {
                image.setY((pxHeight / 2 - image.getHeight()));
             displayScore(score);
            }

            @Override
            public void onAnimationRepeat(Animation animation) {
            }
        });


        return moveDown;
    }

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