forked from waseefakhtar/plaid
-
Notifications
You must be signed in to change notification settings - Fork 0
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Convert SlideInItemAnimator to use Springs.
- Loading branch information
1 parent
0d49dd1
commit 5088419
Showing
3 changed files
with
139 additions
and
30 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,98 @@ | ||
| package io.plaidapp.core.util | ||
|
|
||
| import android.view.View | ||
| import androidx.annotation.IdRes | ||
| import androidx.dynamicanimation.animation.DynamicAnimation | ||
| import androidx.dynamicanimation.animation.DynamicAnimation.ViewProperty | ||
| import androidx.dynamicanimation.animation.SpringAnimation | ||
| import androidx.dynamicanimation.animation.SpringForce | ||
| import io.plaidapp.core.R | ||
|
|
||
| /** | ||
| * An extension function which creates/retrieves a [SpringAnimation] and stores it in the [View]s | ||
| * tag. | ||
| */ | ||
| fun View.spring( | ||
| property: ViewProperty, | ||
| stiffness: Float = 500f, | ||
| damping: Float = SpringForce.DAMPING_RATIO_NO_BOUNCY, | ||
| startVelocity: Float? = null | ||
| ): SpringAnimation { | ||
| val key = getKey(property) | ||
| var springAnim = getTag(key) as? SpringAnimation? | ||
| if (springAnim == null) { | ||
| springAnim = SpringAnimation(this, property).apply { | ||
| spring = SpringForce().apply { | ||
| this.dampingRatio = damping | ||
| this.stiffness = stiffness | ||
| startVelocity?.let { setStartVelocity(it) } | ||
| } | ||
| } | ||
| setTag(key, springAnim) | ||
| } | ||
| return springAnim | ||
| } | ||
|
|
||
| /** | ||
| * Map from a [ViewProperty] to an `id` suitable to use as a [View] tag. | ||
| */ | ||
| @IdRes | ||
| private fun getKey(property: ViewProperty): Int { | ||
| return when (property) { | ||
| SpringAnimation.TRANSLATION_X -> R.id.translation_x | ||
| SpringAnimation.TRANSLATION_Y -> R.id.translation_y | ||
| SpringAnimation.TRANSLATION_Z -> R.id.translation_z | ||
| SpringAnimation.SCALE_X -> R.id.scale_x | ||
| SpringAnimation.SCALE_Y -> R.id.scale_y | ||
| SpringAnimation.ROTATION -> R.id.rotation | ||
| SpringAnimation.ROTATION_X -> R.id.rotation_x | ||
| SpringAnimation.ROTATION_Y -> R.id.rotation_y | ||
| SpringAnimation.X -> R.id.x | ||
| SpringAnimation.Y -> R.id.y | ||
| SpringAnimation.Z -> R.id.z | ||
| SpringAnimation.ALPHA -> R.id.alpha | ||
| SpringAnimation.SCROLL_X -> R.id.scroll_x | ||
| SpringAnimation.SCROLL_Y -> R.id.scroll_y | ||
| else -> throw IllegalAccessException("Unknown ViewProperty: $property") | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * A class which adds [DynamicAnimation.OnAnimationEndListener]s to the given `springs` and invokes | ||
| * `onEnd` when all have finished. | ||
| */ | ||
| class MultiSpringEndListener( | ||
| onEnd: (Boolean) -> Unit, | ||
| vararg springs: SpringAnimation | ||
| ) { | ||
| private val listeners = ArrayList<DynamicAnimation.OnAnimationEndListener>(springs.size) | ||
|
|
||
| private var wasCancelled = false | ||
|
|
||
| init { | ||
| springs.forEach { | ||
| val listener = object : DynamicAnimation.OnAnimationEndListener { | ||
| override fun onAnimationEnd( | ||
| animation: DynamicAnimation<out DynamicAnimation<*>>?, | ||
| canceled: Boolean, | ||
| value: Float, | ||
| velocity: Float | ||
| ) { | ||
| animation?.removeEndListener(this) | ||
| wasCancelled = wasCancelled or canceled | ||
| listeners.remove(this) | ||
| if (listeners.isEmpty()) { | ||
| onEnd(wasCancelled) | ||
| } | ||
| } | ||
| } | ||
| it.addEndListener(listener) | ||
| listeners.add(listener) | ||
| } | ||
| } | ||
| } | ||
|
|
||
| fun listenForAllSpringsEnd( | ||
| onEnd: (Boolean) -> Unit, | ||
| vararg springs: SpringAnimation | ||
| ) = MultiSpringEndListener(onEnd, *springs) |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters