Fingerprint 解锁流程

科技前沿 • 2025-04-07 21:48 • 阅读 19

大家好，我是讯享网，很高兴认识大家。

1.defect: 指纹解锁太慢流程
ALPS0:
1）、指纹解锁的大致flow 如下：
sensor上报校验成功
。。。
//keyguard处理
==>FingerprintUnlockController.onFingerprintAuthenticated
==>KeyguardViewMediator.keyguardDone
==>KeyguardViewMediator.mKeyguardGoingAwayRunnable
==>ActivityManagerNative.getDefault().keyguardGoingAway(flags);
// Don't actually hide the Keyguard at the moment, wait for window
// manager until it tells us it's safe to do so with
// startKeyguardExitAnimation.
ActivityManagerNative.getDefault().keyguardGoingAway(flags);
==>AMS/WMS进行一系列处理操作
...
==>PhoneWindowManager.startKeyguardExitAnimation
==>KeyguardViewMediator.startKeyguardExitAnimation->handleStartKeyguardExitAnimation
==>mStatusBarKeyguardViewManager.hide(startTime, fadeoutDuration);
//hide方法中执行animateScrimControllerKeyguardFadingOut等操作
//之后进行一些状态刷新，收起NotificationPanel界面等操作。
//->StatusBarKeyguardViewManager.updateStates->updateMonitor.onKeyguardVisibilityChanged(showing && !occluded);-==>KeyguardUpdateMonitor.onKeyguardVisibilityChanged->updateFingerprintListeningState
==>mPhoneStatusBar.hideKeyguard();->instantCollapseNotificationPanel
==>PanelView.instantCollapse->notifyBarPanelExpansionChanged

建议是在关键时间点添加些log，看下是否有比较明显耗时的地方。

05-22 18:01:01. 1052 1052 I FingerprintController: releasing fp wakelock

//wms 这边准备好，通知锁屏可以退出
05-22 18:01:02. 889 936 D WindowManager: PWM.startKeyguardExitAnimation
//锁屏这边回调onDrawn
05-22 18:01:02. 889 1152 D WindowManager: mKeyguardDelegate.ShowListener.onDrawn.

讯享网

05-22 18:01:02. 889 919 I WindowManager: Waiting for drawn Window{d5b908d u0 StatusBar}: removed=false visible=true mHasSurface=true drawState=1
。。。。//等待statusbar绘制完成
05-22 18:01:02. 889 936 I WindowManager: Waiting for drawn Window{d5b908d u0 StatusBar}: removed=false visible=true mHasSurface=true drawState=4
//等待所有window ready 才会去亮屏
05-22 18:01:02. 889 936 I WindowManager: All windows ready for display!
05-22 18:01:02. 889 943 I DisplayPowerController: Unblocked screen on after 718 ms

指纹解锁flow如下：
->FingerprintUnlockController.onFingerprintAuthenticated
->KeyguardViewMediator.onWakeAndUnlocking->keyguardDone->handleKeyguardDone
->KeyguardViewMediator.mKeyguardGoingAwayRunnable
->ActivityManagerNative.getDefault().keyguardGoingAway(flags);
// Don't actually hide the Keyguard at the moment, wait for window
// manager until it tells us it's safe to do so with
// startKeyguardExitAnimation.
ActivityManagerNative.getDefault().keyguardGoingAway(flags);
->AMS/WMS进行一系列处理操作
->PhoneWindowManager.startKeyguardExitAnimation
->KeyguardService.startKeyguardExitAnimation
->KeyguardViewMediator.startKeyguardExitAnimation->handleStartKeyguardExitAnimation
->PhoneWindowManager.mKeyguardDrawnCallback.onDrawn

Fingerprint 解锁流程

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