Merge "Add trace for seekbar updates" into udc-dev (6d243ffc) · Commits · e / os / android_frameworks_base

packages/SystemUI/src/com/android/systemui/media/controls/models/player/SeekBarViewModel.kt

+10 −1

Original line number	Diff line number	Diff line
		@@ -20,6 +20,7 @@ import android.media.MediaMetadata
		import android.media.session.MediaController
		import android.media.session.PlaybackState
		import android.os.SystemClock
		import android.os.Trace
		import android.view.GestureDetector
		import android.view.MotionEvent
		import android.view.View
		@@ -40,6 +41,8 @@ import javax.inject.Inject
		private const val POSITION_UPDATE_INTERVAL_MILLIS = 100L
		private const val MIN_FLING_VELOCITY_SCALE_FACTOR = 10

		private const val TRACE_POSITION_NAME = "SeekBarPollingPosition"

		private fun PlaybackState.isInMotion(): Boolean {
		return this.state == PlaybackState.STATE_PLAYING \|\|
		this.state == PlaybackState.STATE_FAST_FORWARDING \|\|
		@@ -295,14 +298,20 @@ constructor(
		@WorkerThread
		private fun checkIfPollingNeeded() {
		val needed = listening && !scrubbing && playbackState?.isInMotion() ?: false
		val traceCookie = controller?.sessionToken.hashCode()
		if (needed) {
		if (cancel == null) {
		cancel =
		Trace.beginAsyncSection(TRACE_POSITION_NAME, traceCookie)
		val cancelPolling =
		bgExecutor.executeRepeatedly(
		this::checkPlaybackPosition,
		0L,
		POSITION_UPDATE_INTERVAL_MILLIS
		)
		cancel = Runnable {
		cancelPolling.run()
		Trace.endAsyncSection(TRACE_POSITION_NAME, traceCookie)
		}
		}
		} else {
		cancel?.run()