//将 Activity 的揭露效果写在 Base 类中，需要揭露动画效果时继承abstract class BaseAnimRevealActivity : BaseActivityWrapper() {
companion object {
//手动往 intent 里传入上个界面的点击位置坐标 val CLICK_X = "CLICK_X"
val CLICK_Y = "CLICK_Y"
var time = 300L
}
private var onGlobalLayout: ViewTreeObserver.OnGlobalLayoutListener? = null
//揭露(进入)动画 var mAnimReveal: Animator? = null
//反揭露(退出)动画 var mAnimRevealR: Animator? = null
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
circularReveal(intent)
}
//Activity 揭露(进入)动画，进入时使用 private fun circularReveal(intent: Intent?) {
//系统提供的揭露动画需 5.0 及以上的 sdk 版本，当我们获取不到上个界面的点击区域时就不展示揭露动画，因为此时没有合适的锚点 if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP ||
(intent?.sourceBounds == null && intent?.hasExtra(CLICK_X)?.not() ?: true)
) return
val rect = intent?.sourceBounds
val v = window.decorView
v.visibility = View.INVISIBLE
@SuppressWarnings
onGlobalLayout = object : ViewTreeObserver.OnGlobalLayoutListener {
override fun onGlobalLayout() {//此时既是开始揭露动画的最佳时机 println("centerX ${rect?.centerX() ?: intent?.getIntExtra(CLICK_X, 0)}")
println("centerY ${rect?.centerY() ?: intent?.getIntExtra(CLICK_Y, 0)}")
// mAnimReveal?.removeAllListeners()// mAnimReveal?.cancel() if (mAnimReveal == null) {
mAnimReveal = ViewAnimationUtils.createCircularReveal(
v,
rect?.centerX() ?: intent?.getIntExtra(CLICK_X, 0) ?: 0,
rect?.centerY() ?: intent?.getIntExtra(CLICK_Y, 0) ?: 0,
0f,
v.height.toFloat()
)
mAnimReveal?.duration = time
mAnimReveal?.interpolator = LinearInterpolator()
mAnimReveal?.addListener(object : Animator.AnimatorListener {
override fun onAnimationRepeat(animation: Animator?) {
}
override fun onAnimationEnd(animation: Animator?) {
onGlobalLayout?.let {
//我们需要在揭露动画进行完后及时移除回调 v?.viewTreeObserver?.removeOnGlobalLayoutListener(it)
}
}
override fun onAnimationCancel(animation: Animator?) {
}
override fun onAnimationStart(animation: Animator?) {
}
})
}
mAnimReveal?.isStarted?.let {
if (!it) {
mAnimReveal?.start()
}
}
}
}
//视图可见性发生变化时的回调，回调里正是开始揭露动画的最佳时机 v.viewTreeObserver.addOnGlobalLayoutListener(onGlobalLayout)
}
//Activtiy 反揭露(退出)动画，即退出时的过渡动画， // 这么起名可能不恰当，其实还是同样的动画， // 只不过揭露的起始和终结半径跟上面相比反过来了 private fun circularRevealReverse(intent: Intent?) {
//系统提供的揭露动画需 5.0 及以上的 sdk 版本，当我们获取不到上个界面的点击区域时就不展示揭露动画，因为此时没有合适的锚点 if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP ||
(intent?.sourceBounds == null && intent?.hasExtra(CLICK_X)?.not() ?: true)
) {
super.onBackPressed()
return
}
val rect = intent?.sourceBounds
val v = window.decorView
mAnimRevealR?.removeAllListeners()
mAnimRevealR?.cancel()
mAnimRevealR = ViewAnimationUtils.createCircularReveal(
v,
rect?.centerX() ?: intent?.getIntExtra(CLICK_X, 0) ?: 0,
rect?.centerY() ?: intent?.getIntExtra(CLICK_Y, 0) ?: 0,
v.height.toFloat(),
0f
)
mAnimRevealR?.duration = time
mAnimRevealR?.interpolator = LinearInterpolator()
mAnimRevealR?.addListener(object : Animator.AnimatorListener {
override fun onAnimationRepeat(animation: Animator?) {
}
override fun onAnimationEnd(animation: Animator?) {
println("onAnimationEnd")
v.visibility = View.GONE
this@BaseAnimRevealActivity.finish()
}
override fun onAnimationCancel(animation: Animator?) {
}
override fun onAnimationStart(animation: Animator?) {
println("onAnimationStart")
}
})
mAnimRevealR?.start()
}
//回退时应用反揭露动画 override fun onBackPressed() {
circularRevealReverse(intent)
}
override fun onDestroy() {
//及时释放资源以保证代码健壮性 mAnimReveal?.removeAllListeners()
mAnimReveal?.cancel()
mAnimRevealR?.removeAllListeners()
mAnimRevealR?.cancel()
//及时释放资源以保证代码健壮性 onGlobalLayout?.let {
window.decorView.viewTreeObserver?.removeOnGlobalLayoutListener(it)
}
super.onDestroy()
}
//这个方法很重要，如果我们应用的启动图标在桌面上的位置有变化，可在此收到新的位置信息，然而经作者本人实践作用十分有限 override fun onNewIntent(intent: Intent?) {
super.onNewIntent(intent)
println("---------onNewIntent")
circularReveal(intent)
//更新intent this.intent = intent
}
}
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