Android

Question

我花了很长时间试图了解如何在继续代码之前等待动画完成。到目前为止，我已经尝试过 while(animation.hasEnded() == False)，使用 Thread.sleep，使用计时器，但似乎无法正常工作。

多次出现的事情是向动画添加动画侦听器，我已经尝试过但不确定如何进一步推进。

我创建动画，启动动画，然后有一行代码，我只想在动画结束后执行：

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

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

这里是用于创建动画的 allAnimStuff(duration) 方法：

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;
    }

Answer 1

在 onAnimationEnd 方法中写下一行

 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;
    }

Android - 等待动画完成再继续？

Android - wait for animation to finish before continuing?

animation

wait