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Commit 057c637b authored by Beth Thibodeau's avatar Beth Thibodeau Committed by Automerger Merge Worker
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Merge "Add trace for seekbar updates" into udc-dev am: 6d243ffc 

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22637823



Change-Id: I68efb1b7bce0b09c0c1e5ad7e3a242a7af9187ad
Signed-off-by: default avatarAutomerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
parents 0e97a42d 6d243ffc

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()