android - 循环动画集会导致 StackOverflowError

Question

我正在删除一个 Android 应用程序，其中有一个无限重复的动画，导致 StackOverflowError。当同一对象上的另一个动画开始时，它会执行此操作。

private fun pulse() {
    val randomGenerator = Random()

    val durationx = randomGenerator.nextInt(4000) + 1500

    val inflateX = ObjectAnimator.ofFloat(mContentView, "scaleX", 1.3f).apply {
        duration = durationx.toLong()
    }
    val inflateY = ObjectAnimator.ofFloat(mContentView, "scaleY", 1.3f).apply {
        duration = durationx.toLong()
    }
    val deflateX = ObjectAnimator.ofFloat(mContentView, "scaleX", 1.0f).apply {
        duration = durationx.toLong()
    }
    val deflateY = ObjectAnimator.ofFloat(mContentView, "scaleY", 1.0f).apply {
        duration = durationx.toLong()
    }
    val rotate = ObjectAnimator.ofFloat(mContentView, "rotation", 1.0f).apply {
        duration = durationx.toLong()
    }
    val soulToButton = AnimatorSet().apply {
        play(inflateX).with(inflateY)
        play(rotate).with(inflateX)
        play(deflateX).after(inflateX)
        play(deflateY).after(inflateY)
        start()
    }

    soulToButton.addListener(object: AnimatorListenerAdapter() {
        override fun onAnimationEnd(animation: Animator) {
            super.onAnimationEnd(animation)
            soulToButton.start() // stacktrace points to this line as cause for the error.
        }
    })
    soulToButton.start()

    AnimatorSet().apply {
        play(soulToButton)
        start()
    }
}

我尝试将函数更改为funpulse(stop: boolean)，调用pulse(false)来启动脉冲和pulse(true) code> 在其他动画开始之前，并在多个位置添加 if (stop) {soulToButton.cancel()} 。我还尝试换行导致错误，如下所示: while(stop == false){soultoButton.start()}

所有这些都没有帮助。

Answer 1

试试这个版本:它简短明了，基本上做同样的事情。

    val randomGenerator = Random()

    val durationx = randomGenerator.nextInt(4000) + 1500

    val animator = animator@{ property : String, value : Float ->
        return@animator ObjectAnimator.ofFloat(mContextView, property, value).apply {
            duration = durationx.toLong()
            repeatMode = REVERSE
            repeatCount = INFINITE
        }
    }

    AnimatorSet().apply {
        playTogether(animator("scaleX", 1.3f),animator("scaleY", 1.3f),animator("rotation", 45.0f))
        start()
    }