set animation listener persists for animate() if not set to null, why does this happen?
Animation called on button click:
confirmBtn.setOnClickListener {
finalWalkthroughViewModel.setConfirmation(true)
it.hide()
deliveredView.show()
validateForm()
}
My extension functions on View:
fun View.hide(visibility: Int = android.view.View.GONE) {
this.alpha = 1.0f
this.animate().alpha(0.0f).setDuration(ANIMATION_TIME)
.setListener(object : Animator.AnimatorListener {
override fun onAnimationRepeat(animation: Animator?) {
}
override fun onAnimationEnd(animation: Animator?) {
this@hide.visibility = visibility
}
override fun onAnimationCancel(animation: Animator?) {
}
override fun onAnimationStart(animation: Animator?) {
}
})
}
fun View.show() {
this.alpha = 0.0f
this.visibility = View.VISIBLE
this.animate().alpha(1.0f).setDuration(ANIMATION_TIME).setListener(null)
}
so if I remove the .setListener(null) from show(), the listener set previously in the hide function gets called. Why does this happen? Does the animation implementation in android involve a companion object or a singleton class?
android kotlin 
android-animation edited yesterday
daedsidog
1,3231724
asked yesterday
Azam M
63
add a comment |
Animation called on button click:
confirmBtn.setOnClickListener {
finalWalkthroughViewModel.setConfirmation(true)
it.hide()
deliveredView.show()
validateForm()
}
My extension functions on View:
fun View.hide(visibility: Int = android.view.View.GONE) {
this.alpha = 1.0f
this.animate().alpha(0.0f).setDuration(ANIMATION_TIME)
.setListener(object : Animator.AnimatorListener {
override fun onAnimationRepeat(animation: Animator?) {
}
override fun onAnimationEnd(animation: Animator?) {
this@hide.visibility = visibility
}
override fun onAnimationCancel(animation: Animator?) {
}
override fun onAnimationStart(animation: Animator?) {
}
})
}
fun View.show() {
this.alpha = 0.0f
this.visibility = View.VISIBLE
this.animate().alpha(1.0f).setDuration(ANIMATION_TIME).setListener(null)
}
so if I remove the .setListener(null) from show(), the listener set previously in the hide function gets called. Why does this happen? Does the animation implementation in android involve a companion object or a singleton class?
android kotlin android-animation edited yesterday
daedsidog
1,3231724
asked yesterday
Azam M
63
add a comment |
Animation called on button click:
confirmBtn.setOnClickListener {
finalWalkthroughViewModel.setConfirmation(true)
it.hide()
deliveredView.show()
validateForm()
}
My extension functions on View:
fun View.hide(visibility: Int = android.view.View.GONE) {
this.alpha = 1.0f
this.animate().alpha(0.0f).setDuration(ANIMATION_TIME)
.setListener(object : Animator.AnimatorListener {
override fun onAnimationRepeat(animation: Animator?) {
}
override fun onAnimationEnd(animation: Animator?) {
this@hide.visibility = visibility
}
override fun onAnimationCancel(animation: Animator?) {
}
override fun onAnimationStart(animation: Animator?) {
}
})
}
fun View.show() {
this.alpha = 0.0f
this.visibility = View.VISIBLE
this.animate().alpha(1.0f).setDuration(ANIMATION_TIME).setListener(null)
}
so if I remove the .setListener(null) from show(), the listener set previously in the hide function gets called. Why does this happen? Does the animation implementation in android involve a companion object or a singleton class?
android kotlin android-animation edited yesterday
daedsidog
1,3231724
asked yesterday
Azam M
63
Animation called on button click:
confirmBtn.setOnClickListener {
finalWalkthroughViewModel.setConfirmation(true)
it.hide()
deliveredView.show()
validateForm()
}
My extension functions on View:
fun View.hide(visibility: Int = android.view.View.GONE) {
this.alpha = 1.0f
this.animate().alpha(0.0f).setDuration(ANIMATION_TIME)
.setListener(object : Animator.AnimatorListener {
override fun onAnimationRepeat(animation: Animator?) {
}
override fun onAnimationEnd(animation: Animator?) {
this@hide.visibility = visibility
}
override fun onAnimationCancel(animation: Animator?) {
}
override fun onAnimationStart(animation: Animator?) {
}
})
}
fun View.show() {
this.alpha = 0.0f
this.visibility = View.VISIBLE
this.animate().alpha(1.0f).setDuration(ANIMATION_TIME).setListener(null)
}
so if I remove the .setListener(null) from show(), the listener set previously in the hide function gets called. Why does this happen? Does the animation implementation in android involve a companion object or a singleton class?
android kotlin android-animation android kotlin android-animation edited yesterday
daedsidog
1,3231724
asked yesterday
Azam M
63
edited yesterday
daedsidog
1,3231724
asked yesterday
Azam M
63
edited yesterday
daedsidog
1,3231724
edited yesterday
daedsidog
1,3231724
edited yesterday
daedsidog
1,3231724
1,3231724
asked yesterday
Azam M
63
asked yesterday
Azam M
63
asked yesterday
Azam M
63
63
add a comment |
add a comment |
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