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feat(PlayerFragment): smooth out predictive back progress #6870

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feat(PlayerFragment): smooth out predictive back progress #6870

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8 changes: 7 additions & 1 deletion app/src/main/java/com/github/libretube/ui/fragments/PlayerFragment.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -118,6 +118,7 @@ import kotlinx.coroutines.runBlocking
import kotlinx.coroutines.withContext
import kotlin.math.abs
import kotlin.math.ceil
import kotlin.math.pow


@androidx.annotation.OptIn(androidx.media3.common.util.UnstableApi::class)
Expand Down Expand Up @@ -476,7 +477,8 @@ class PlayerFragment : Fragment(), OnlinePlayerOptions {
}

override fun handleOnBackProgressed(backEvent: BackEventCompat) {
binding.playerMotionLayout.progress = backEvent.progress
val smoothedProgress = MAX_PROGRESS * (1 - 2f.pow(-backEvent.progress / MAX_PROGRESS * 5f))
binding.playerMotionLayout.progress = smoothedProgress
}

override fun handleOnBackCancelled() {
Expand Down Expand Up @@ -1527,4 +1529,8 @@ class PlayerFragment : Fragment(), OnlinePlayerOptions {
fun onKeyUp(keyCode: Int): Boolean {
return _binding?.player?.onKeyBoardAction(keyCode) ?: false
}

companion object {
private const val MAX_PROGRESS = 0.4f
}
}
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