背景
经常在做系统开发需要使用一些命令来查看某个模块相关的信息，根据这些信息来清楚了解模块当前状态，比如常用的dumpsys activity，dumpsys SurfaceFlinger等命令，这些命令其实用多了自然就熟悉了。但是很多新vip学员也反应有时候记不住具体用哪些命令，问马哥是否可以汇总一些，方便自己来查验。
今天马哥写个文章给大家列出一些重要的dumpsys等命令，方便新手vip学员查阅，后续熟悉了其实也就不在需要查阅，大家一定要多在实际工作学习中多使用文章中命令，用这些命令来提升你的工作效率等。
基础查询命令
列出所有可用服务
adb shell dumpsys -l # 显示所有支持dump的系统服务
adb shell service list # 另一种服务列表查看方式
查看命令帮助文档
adb shell dumpsys [服务名] -h
注意这个命令不一定所有服务都有。
核心常用命令汇总
AMS和WMS相关的命令
1、AMS的信息总命令：
adb shell dumpsys activity
这个命令内容太多，一般在想要展示所有信息时候使用，但是因为输出内容太多，一般会用他的子命令，更有目标性
2、展示当前Activity上到下的具体情况命令
dumpsys activity activities
am stack list
这个命令会展示当前系统activity上到下的具体情况，哪个activity最顶层，哪个activity属于Resume，Focus状态
db shell dumpsys activity activities
ACTIVITY MANAGER ACTIVITIES (dumpsys activity activities)
Display #0 (activities from top to bottom):
* Task{4bc6e2d #1 type=home isResizeable=true minWidth=-1 minHeight=-1 U=0 visible=true visibleRequested=false mode=fullscreen translucent=false sz=1}
* Task{1cff125 #53 type=home I=com.android.launcher3/.uioverrides.QuickstepLauncher isResizeable=true minWidth=-1 minHeight=-1 U=0 rootTaskId=1 visible=true visibleRequested=false mode=fullscreen translucent=false sz=1}
mLastPausedActivity: ActivityRecord{f9bc11c u0 com.android.launcher3/.uioverrides.QuickstepLauncher t53}
mLastNonFullscreenBounds=Rect(225, 457 - 856, 1537)
isSleeping=true
* Hist #0: ActivityRecord{f9bc11c u0 com.android.launcher3/.uioverrides.QuickstepLauncher t53}
packageName=com.android.launcher3 processName=com.android.launcher3
launchedFromUid=0 launchedFromPackage=null launchedFromFeature=null userId=0
app=ProcessRecord{f2946bb 2433:com.android.launcher3/u0a140}
Intent { act=android.intent.action.MAIN cat=[android.intent.category.HOME] flg=0x10000100 cmp=com.android.launcher3/.uioverrides.QuickstepLauncher (has extras) }
rootOfTask=true task=Task{1cff125 #53 type=home I=com.android.launcher3/.uioverrides.QuickstepLauncher isResizeable=true minWidth=-1 minHeight=-1}
taskAffinity=null
mActivityComponent=com.android.launcher3/.uioverrides.QuickstepLauncher
baseDir=/system/system_ext/priv-app/TrebuchetQuickStep/TrebuchetQuickStep.apk
dataDir=/data/user/0/com.android.launcher3
stateNotNeeded=true componentSpecified=true mActivityType=home
compat={420dpi} theme=0x7f13000f
mLastReportedConfigurations:
mGlobalConfig={1.0 ?mcc0mnc [en_US] ldltr sw411dp w411dp h731dp 420dpi nrml long port night finger -keyb/v/h -nav/h winConfig={ mBounds=Rect(0, 0 - 1080, 1920) mAppBounds=Rect(0, 0 - 1080, 1920) mMaxBounds=Rect(0, 0 - 1080, 1920) mDisplayRotation=ROTATION_0 mWindowingMode=fullscreen mActivityType=undefined mAlwaysOnTop=undefined mRotation=ROTATION_0} as.4 s.39 fontWeightAdjustment=0}
mOverrideConfig={1.0 ?mcc0mnc [en_US] ldltr sw411dp w411dp h731dp 420dpi nrml long port night finger -keyb/v/h -nav/h winConfig={ mBounds=Rect(0, 0 - 1080, 1920) mAppBounds=Rect(0, 0 - 1080, 1920) mMaxBounds=Rect(0, 0 - 1080, 1920) mDisplayRotation=ROTATION_0 mWindowingMode=fullscreen mActivityType=home mAlwaysOnTop=undefined mRotation=ROTATION_0} as.4 s.3 fontWeightAdjustment=0}
mLastReportedActivityWindowInfo=ActivityWindowInfo{isEmbedded=false, taskBounds=Rect(0, 0 - 1080, 1920), taskFragmentBounds=Rect(0, 0 - 1080, 1920)}
CurrentConfiguration={1.0 ?mcc0mnc [en_US] ldltr sw411dp w411dp h731dp 420dpi nrml long port night finger -keyb/v/h -nav/h winConfig={ mBounds=Rect(0, 0 - 1080, 1920) mAppBounds=Rect(0, 0 - 1080, 1920) mMaxBounds=Rect(0, 0 - 1080, 1920) mDisplayRotation=ROTATION_0 mWindowingMode=fullscreen mActivityType=home mAlwaysOnTop=undefined mRotation=ROTATION_0} as.4 s.3 fontWeightAdjustment=0}
RequestedOverrideConfiguration={0.0 ?mcc0mnc ?localeList ?layoutDir ?swdp ?wdp ?hdp ?density ?lsize ?long ?ldr ?wideColorGamut ?orien ?uimode ?night ?touch ?keyb/?/? ?nav/? winConfig={ mBounds=Rect(0, 0 - 0, 0) mAppBounds=null mMaxBounds=Rect(0, 0 - 0, 0) mDisplayRotation=undefined mWindowingMode=undefined mActivityType=home mAlwaysOnTop=undefined mRotation=undefined} ?fontWeightAdjustment}
taskDescription: label="null" icon=null iconResource=/0 iconFilename=null primaryColor=ff171d1e
backgroundColor=ff1b2122 statusBarColor=0 navigationBarColor=0
backgroundColorFloating=ff171d1e
launchFailed=false launchCount=0 lastLaunchTime=-57m57s152ms
mHaveState=true mIcicle=Bundle[mParcelledData.dataSize=5696]
state=STOPPED delayedResume=false finishing=false
keysPaused=false inHistory=true idle=true
occludesParent=true noDisplay=false immersive=false launchMode=2
mActivityType=home
mImeInsetsFrozenUntilStartInput=true
windows=[Window{8a0ad4f u0 com.android.launcher3/com.android.launcher3.uioverrides.QuickstepLauncher}]
windowType=2
mOccludesParent=true
overrideOrientation=SCREEN_ORIENTATION_NOSENSOR
requestedOrientation=SCREEN_ORIENTATION_NOSENSOR
mVisibleRequested=false mVisible=false mClientVisible=false reportedDrawn=false reportedVisible=false
mAppStopped=true
mNumInterestingWindows=1 mNumDrawnWindows=1 allDrawn=true lastAllDrawn=false)
nowVisible=false lastVisibleTime=-5m0s938ms
connections={ConnectionRecord{e7866fe u0 com.android.launcher3/com.android.quickstep.TouchInteractionService:@a1172b9 flags=0x0}}
resizeMode=RESIZE_MODE_RESIZEABLE
mLastReportedMultiWindowMode=false mLastReportedPictureInPictureMode=false
supportsSizeChanges=SIZE_CHANGES_UNSUPPORTED_METADATA
configChanges=0xdf3
neverSandboxDisplayApis=false
alwaysSandboxDisplayApis=false
isTransparentPolicyRunning=false
areBoundsLetterboxed=false
isLetterboxRunning=false
* Task{17b93de #2 type=undefined isResizeable=true minWidth=-1 minHeight=-1 U=0 visible=false visibleRequested=false mode=fullscreen translucent=true sz=2}
mCreatedByOrganizer=true
* Task{25142db #4 type=undefined isResizeable=true minWidth=-1 minHeight=-1 U=0 rootTaskId=2 visible=false visibleRequested=false mode=multi-window translucent=true sz=0}
mBounds=Rect(0, 1920 - 1080, 2880)
mCreatedByOrganizer=true
isSleeping=true
* Task{9290fea #3 type=undefined isResizeable=true minWidth=-1 minHeight=-1 U=0 rootTaskId=2 visible=false visibleRequested=false mode=multi-window translucent=true sz=0}
mCreatedByOrganizer=true
isSleeping=true
Resumed activities in task display areas (from top to bottom):
Resumed: ActivityRecord{f9bc11c u0 com.android.launcher3/.uioverrides.QuickstepLauncher t53}
3、展示系统窗口层级结构树
dumpsys activity containers
这个命令非常重要，可以很方便查看系统当前窗口的详细层级情况，一般会和dumpsys SurfaceFlinger的layer层技树对应，也和Winscope结合看，经常用于窗口显示相关调试确认
4、展示系统窗口window的详细信息
dumpsys window windows
一般用来查看当前手机上哪些window属于显示状态，窗口相关属性，大小类型等信息。
命令一般也会和Activity或者SurfaceFlinger结合起来一起查看，用于定位显示相关疑难问题
SurfaceFlinger相关
命令：
dumpsys SurfaceFlinger
属于非常高频命令，主要用来展示当前设备上展示的画面，图层信息，一般用于调试，定位一些显示异常等疑难问题，属于做系统窗口和显示开发必须会的命令
输出如下：
内容较多，这里只截出当前手机显示的Layer详细情况
Display 0 (active) HWC layers:
---------------------------------------------------------------------------------------------------------------------------------------------------------------
Layer name
Z | Window Type | Comp Type | Transform | Disp Frame (LTRB) | Source Crop (LTRB) | Frame Rate (Explicit) (Seamlessness) [Focused]
---------------------------------------------------------------------------------------------------------------------------------------------------------------
Wallpaper BBQ wrapper#69
1 | 0 | DEVICE | 0 | 0 0 1080 1920 | 49.0 87.0 1031.0 1833.0 | [ ]
---------------------------------------------------------------------------------------------------------------------------------------------------------------
com.android.launcher3/com.android.launcher3.uioverrides.QuickstepLauncher#107
3 | 1 | DEVICE | 0 | 0 0 1080 1920 | 0.0 0.0 1080.0 1920.0 | Cat::High Default [*]
---------------------------------------------------------------------------------------------------------------------------------------------------------------
StatusBar#88
4 | 2000 | DEVICE | 0 | 0 0 1080 74 | 0.0 0.0 1080.0 74.0 | Cat::NoPreference Default [ ]
---------------------------------------------------------------------------------------------------------------------------------------------------------------
NavigationBar0#84
5 | 2019 | DEVICE | 0 | 0 1794 1080 1920 | 0.0 0.0 1080.0 126.0 | Cat::NoPreference Default [ ]
---------------------------------------------------------------------------------------------------------------------------------------------------------------
触摸输入input的命令
命令1：
一般查看事件派发等信息，比如派发哪些窗口等，一般用于调试一些触摸无响应问题
dumpsys input
比如截取了下面关键信息，可以看到触摸事件派发窗口顺序，从而查验出一些触摸不响应问题
命令2：
实时查看手机输入相关信息
getevent -lrt
PKMS包管理相关
dumpsys package [package] # 显示应用权限/版本/签名/路径
比如看看launcher信息
adb shell dumpsys package com.android.launcher3
Activity Resolver Table:
Non-Data Actions:
android.intent.action.MAIN:
9bf54f9 com.android.launcher3/.uioverrides.QuickstepLauncher filter 3f13c3e
Action: "android.intent.action.MAIN"
Action: "android.intent.action.SHOW_WORK_APPS"
Category: "android.intent.category.HOME"
Category: "android.intent.category.DEFAULT"
Category: "android.intent.category.MONKEY"
Category: "android.intent.category.LAUNCHER_APP"
41561bb com.android.launcher3/.secondarydisplay.SecondaryDisplayLauncher filter 283c6d8
Action: "android.intent.action.MAIN"
Category: "android.intent.category.SECONDARY_HOME"
Category: "android.intent.category.DEFAULT"
android.intent.action.PICK:
e18d43 com.android.launcher3/.WidgetPickerActivity filter de5bfc0
Action: "android.intent.action.PICK"
Category: "android.intent.category.DEFAULT"
android.content.pm.action.CONFIRM_PIN_APPWIDGET:
405ba9f com.android.launcher3/.dragndrop.AddItemActivity filter b4717ec
Action: "android.content.pm.action.CONFIRM_PIN_APPWIDGET"
Action: "android.content.pm.action.CONFIRM_PIN_SHORTCUT"
android.intent.action.APPLICATION_PREFERENCES:
31747b5 com.android.launcher3/.settings.SettingsActivity filter 3c0de4a
Action: "android.intent.action.APPLICATION_PREFERENCES"
Category: "android.intent.category.DEFAULT"
android.intent.action.SHOW_WORK_APPS:
9bf54f9 com.android.launcher3/.uioverrides.QuickstepLauncher filter 3f13c3e
Action: "android.intent.action.MAIN"
Action: "android.intent.action.SHOW_WORK_APPS"
Category: "android.intent.category.HOME"
Category: "android.intent.category.DEFAULT"
Category: "android.intent.category.MONKEY"
Category: "android.intent.category.LAUNCHER_APP"
com.android.quickstep.action.GESTURE_SANDBOX:
170bda7 com.android.launcher3/com.android.quickstep.interaction.GestureSandboxActivity filter cf3d254
Action: "com.android.quickstep.action.GESTURE_SANDBOX"
Category: "android.intent.category.DEFAULT"
com.android.quickstep.action.GESTURE_ONBOARDING_ALL_SET:
ede55fd com.android.launcher3/com.android.quickstep.interaction.AllSetActivity filter 18be2f2
Action: "com.android.quickstep.action.GESTURE_ONBOARDING_ALL_SET"
Category: "android.intent.category.DEFAULT"
android.content.pm.action.CONFIRM_PIN_SHORTCUT:
405ba9f com.android.launcher3/.dragndrop.AddItemActivity filter b4717ec
Action: "android.content.pm.action.CONFIRM_PIN_APPWIDGET"
Action: "android.content.pm.action.CONFIRM_PIN_SHORTCUT"
Receiver Resolver Table:
Non-Data Actions:
androidx.profileinstaller.action.SAVE_PROFILE:
cd5b86d com.android.launcher3/androidx.profileinstaller.ProfileInstallReceiver filter ac898f0
Action: "androidx.profileinstaller.action.SAVE_PROFILE"
android.content.pm.action.SESSION_COMMITTED:
bc1aa31 com.android.launcher3/.SessionCommitReceiver filter 6369516
Action: "android.content.pm.action.SESSION_COMMITTED"
androidx.profileinstaller.action.INSTALL_PROFILE:
cd5b86d com.android.launcher3/androidx.profileinstaller.ProfileInstallReceiver filter 67eeca2
Action: "androidx.profileinstaller.action.INSTALL_PROFILE"
androidx.profileinstaller.action.SKIP_FILE:
cd5b86d com.android.launcher3/androidx.profileinstaller.ProfileInstallReceiver filter 7704d33
Action: "androidx.profileinstaller.action.SKIP_FILE"
androidx.profileinstaller.action.BENCHMARK_OPERATION:
cd5b86d com.android.launcher3/androidx.profileinstaller.ProfileInstallReceiver filter fa26e69
Action: "androidx.profileinstaller.action.BENCHMARK_OPERATION"
android.appwidget.action.APPWIDGET_HOST_RESTORED:
bae5e97 com.android.launcher3/.AppWidgetsRestoredReceiver filter 9da7884
Action: "android.appwidget.action.APPWIDGET_HOST_RESTORED"
Service Resolver Table:
Non-Data Actions:
android.intent.action.QUICKSTEP_SERVICE:
736541c com.android.launcher3/com.android.quickstep.TouchInteractionService filter 96a8825 permission android.permission.STATUS_BAR_SERVICE
Action: "android.intent.action.QUICKSTEP_SERVICE"
android.service.notification.NotificationListenerService:
9756dfa com.android.launcher3/.notification.NotificationListener filter 7de2fab permission android.permission.BIND_NOTIFICATION_LISTENER_SERVICE
Action: "android.service.notification.NotificationListenerService"
这个命令的使用频率也是非常高，主要用于看看以下几个信息：
1、某个apk是否安装，apk的安装路径
2、apk的签名信息
3、apk所有的组件信息
4、apk的权限情况
display相关
命令：
adb shell dumpsys display
输出如下：
adb shell dumpsys display
DISPLAY MANAGER (dumpsys display)
mSafeMode=false
mPendingTraversal=false
mViewports=[DisplayViewport{type=INTERNAL, valid=true, isActive=false, displayId=0, uniqueId='local:0', physicalPort=0, orientation=0, logicalFrame=Rect(0, 0 - 1080, 1920), physicalFrame=Rect(0, 0 - 1080, 1920), deviceWidth=1080, deviceHeight=1920}]
mDefaultDisplayDefaultColorMode=0
mWifiDisplayScanRequestCount=0
mStableDisplaySize=Point(1080, 1920)
mMinimumBrightnessCurve=[(0.0, 0.0), (2000.0, 50.0), (4000.0, 90.0)]
mHdrConversionMode=HdrConversionMode{ConversionMode=HDR_CONVERSION_SYSTEM, PreferredHdrOutputType=HDR_TYPE_INVALID}
Display States: size=1
---------------------
Display Id=0
Display State=OFF
Display Brightness=-1.0
Display SdrBrightness=-1.0
Display Adapters: size=4
------------------------
LocalDisplayAdapter
VirtualDisplayAdapter
OverlayDisplayAdapter
mCurrentOverlaySetting=
mOverlays: size=0
WifiDisplayAdapter
mCurrentStatus=WifiDisplayStatus{featureState=1, scanState=0, activeDisplayState=0, activeDisplay=null, displays=[], sessionInfo=WifiDisplaySessionInfo:
Client/Owner: Client
GroupId:
Passphrase:
SessionId: 0
IP Address: }
mFeatureState=1
mScanState=0
mActiveDisplayState=0
mActiveDisplay=null
mDisplays=[]
mAvailableDisplays=[]
mRememberedDisplays=[]
mPendingStatusChangeBroadcast=false
mSupportsProtectedBuffers=false
mDisplayController:
mWifiDisplayOnSetting=false
mWifiP2pEnabled=false
mWfdEnabled=false
mWfdEnabling=false
mNetworkInfo=null
mScanRequested=false
mDiscoverPeersInProgress=false
mDesiredDevice=null
mConnectingDisplay=null
mDisconnectingDisplay=null
mCancelingDisplay=null
mConnectedDevice=null
mConnectionRetriesLeft=0
mRemoteDisplay=null
mRemoteDisplayInterface=null
mRemoteDisplayConnected=false
mAdvertisedDisplay=null
mAdvertisedDisplaySurface=null
mAdvertisedDisplayWidth=0
mAdvertisedDisplayHeight=0
mAdvertisedDisplayFlags=0
mAvailableWifiDisplayPeers: size=0
Display Devices: size=1
-----------------------
DisplayDeviceInfo{"Built-in Screen": uniqueId="local:0", 1080 x 1920, modeId 1, renderFrameRate 60.000004, defaultModeId 1, userPreferredModeId -1, supportedModes [{id=1, width=1080, height=1920, fps=60.000004, vsync=60.000004, synthetic=false, alternativeRefreshRates=[], supportedHdrTypes=[]}], colorMode 0, supportedColorModes [0], hdrCapabilities HdrCapabilities{mSupportedHdrTypes=[], mMaxLuminance=500.0, mMaxAverageLuminance=500.0, mMinLuminance=0.0}, isForceSdr false, allmSupported false, gameContentTypeSupported false, density 420, 428.625 x 427.789 dpi, appVsyncOff 1000000, presDeadline 16666666, touch INTERNAL, rotation 0, type INTERNAL, address {port=0}, deviceProductInfo null, state OFF, committedState OFF, frameRateOverride , brightnessMinimum 0.0, brightnessMaximum 1.0, brightnessDefault 0.5, hdrSdrRatio NaN, FLAG_ALLOWED_TO_BE_DEFAULT_DISPLAY, FLAG_ROTATES_WITH_CONTENT, FLAG_SECURE, FLAG_SUPPORTS_PROTECTED_BUFFERS, FLAG_TRUSTED, installOrientation 0, displayShape DisplayShape{ spec=1673867177 displayWidth=1080 displayHeight=1920 physicalPixelDisplaySizeRatio=1.0 rotation=0 offsetX=0 offsetY=0 scale=1.0}}
mAdapter=LocalDisplayAdapter
主要用来展示系统中有几个display，每个display的详细属性等，具体已经在投屏专题中有详细讲解
内存分析
dumpsys meminfo [package] # 查看指定包内存占用
这个命令一般用于经常分析某个app的内容情况和变化，调试内存泄露等参考对比用
电源管理相关
dumpsys power
注意和使用技巧：
使用dumpsys过程中需要注意一下几点
a. 部分命令输出内容会随AOSP版本迭代发生变化，建议结合-h参数验证最新用法
b.一些输出dumpsys输出内容过多，需要考虑输入到txt文本中
adb shell dumpsys window > window_dump.txt
然后在window_dump.txt进行查看
c.dumpsys输出的东西一般都是某个服务的相关信息，这些信息都是可以在源码中直接找到，所以很多时候可以考察是否对一个模块是否掌握，或者学习就可以通过dumpsys来进行验证学习，所以学习一些模块的快速入门方式可以看dumpsys对应的dump方法：
更多framework实战干货，请关注下面“千里马学框架”
