四大组件---Activity

组件学习思路
1.组件
2.组件的生命周期
3.组件的调度

Activity

1.最近重温了Activity的启动过程，Activity启动过程是非常复杂的，其中涉及跨进程的交互，Activity的调度，生命周期的调度，binder机制等等，值得细细深究。

AMS：AMS是安卓中非常http://www.jianshu.com/p/792997b4d7d7重要的服务，它的主要职责包括进程的调度，四大组件的管理，内存回收等等非常重要的功能。

AMS通过IApplicationThread服务代理对象控制应用进程，应用进程通过AMS的代理对象启动activity,service等等。。。

2.Activity是一个抽象的活动，每个Activity都关联着一个window对象(PhoneWindow)，window中有承载布局的DectorView,有管理窗口的WindowManager

Activity的生命周期

1.问题

1.Android之什么时候调用onSaveInstance方法的时候

http://blog.csdn.net/u011068702/article/details/70217576

2. 如何判断activity渲染完毕

activity整个启动过程http://www.jianshu.com/p/792997b4d7d7

activity调度

adb shell dumpsys activity activities观察AMS是如何调度activity的
手机中可以有多个栈，栈中有若干个task,每个task对应一个TaskRecord
每个task中有若干个activity,每个activity对应一个ActivityRecord

Stack #0:中的task元素是桌面进程的activity集合，多用户的情况下所有桌面进程的task都按照顺序进入Stack #0这个栈，这个栈也只维护桌面进程的task
Stack #x:中的task元素是其它应用进程的activity集合，多用户的情况下其它所有用户中的活动task按照顺序入栈，这个栈维护所有用户的所有活动task

活动调度：
1.当用户从其它应用回到桌面，Stack #0会调度到前台，展示当前处于栈顶的activity，当前activity肯定是当前用户的桌面了
2.栈中调度activity是以task为单位的，task可以理解为一个用户活动集合，一个用户活动集合一般情况下主要发生在一个应用中，当然也存在多个应用之间

一个普通应用场景下的调度过程：
eg: 用户打开了A应用，然后home回到桌面,打开B应用，然后home回到桌面，再次进入A应用
step1: 用户打开了A应用：taskA进入stack #x,stack #0进入后台
step2: 然后home回到桌面:stack #0进入前台　stack #x进入后台
step3: 打开B应用:stack #0进入后台，stack #X进入前台，taskB入栈且处于栈顶
step4: 然后home回到桌面：stack #0进入前台　stack #x进入后台
step5: 再次进入A应用:stack #0进入后台，stack #X进入前台，stack #X中taskA调度到栈顶

msy@msy-OptiPlex-7040:~/src/m-alpha-code/packages/apps/SecurityCenter$ adb shell dumpsys activity activitiesACTIVITY MANAGER ACTIVITIES (dumpsys activity activities)Display #0 (activities from top to bottom)://所有的activities  Stack #2:处于前台的栈    Task id #522    * TaskRecord{e20d722 #522 A=com.miui.securitycenter U=0 sz=2}//U：表示用户id sz:表示当前task中的activity数量      userId=0 effectiveUid=1000 mCallingUid=u0a19 mCallingPackage=com.miui.home      affinity=com.miui.securitycenter      intent={act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10200000 cmp=com.miui.securitycenter/com.miui.securityscan.MainActivity}      realActivity=com.miui.securitycenter/com.miui.securityscan.MainActivity      autoRemoveRecents=false isPersistable=true numFullscreen=2 taskType=0 mTaskToReturnTo=1      rootWasReset=true mNeverRelinquishIdentity=true mReuseTask=false mLockTaskAuth=LOCK_TASK_AUTH_PINNABLE      Activities=[ActivityRecord{3c881d9 u0 com.miui.securitycenter/com.miui.securityscan.MainActivity t522}, ActivityRecord{ed3b00 u0 com.miui.securitycenter/com.miui.antivirus.activity.MainActivity t522}]      askedCompatMode=false inRecents=true isAvailable=true      lastThumbnail=null lastThumbnailFile=/data/system/recent_images/522_task_thumbnail.png      stackId=2      hasBeenVisible=true mResizeable=false firstActiveTime=1506562716684 lastActiveTime=1506562716684 (inactive for 8s)      * Hist #1: ActivityRecord{ed3b00 u0 com.miui.securitycenter/com.miui.antivirus.activity.MainActivity t522}//处于task顶部的activity          packageName=com.miui.securitycenter processName=com.miui.securitycenter          launchedFromUid=1000 launchedFromPackage=com.miui.securitycenter userId=0          app=ProcessRecord{173ef13 14776:com.miui.securitycenter/1000}          Intent { act=miui.intent.action.ANTI_VIRUS cmp=com.miui.securitycenter/com.miui.antivirus.activity.MainActivity (has extras) }          frontOfTask=false task=TaskRecord{e20d722 #522 A=com.miui.securitycenter U=0 sz=2}          taskAffinity=com.miui.securitycenter          realActivity=com.miui.securitycenter/com.miui.antivirus.activity.MainActivity          baseDir=/data/app/com.miui.securitycenter-2/base.apk          dataDir=/data/user/0/com.miui.securitycenter          stateNotNeeded=false componentSpecified=false mActivityType=0          compat={480dpi} labelRes=0x7f070529 icon=0x7f02019d theme=0x7f090021          config={1.0 ?mcc?mnc zh_CN ldltr sw360dp w360dp h620dp 480dpi nrml long port finger -keyb/v/h -nav/h s.6 themeChanged=0 themeChangedFlags=0}          stackConfigOverride={1.0 ?mcc?mnc ?locale ?layoutDir ?swdp ?wdp ?hdp ?density ?lsize ?long ?orien ?uimode ?night ?touch ?keyb/?/? ?nav/? themeChanged=0 themeChangedFlags=0}          taskDescription: iconFilename=null label="null" color=ffe6e6e6          launchFailed=false launchCount=1 lastLaunchTime=-8s92ms          haveState=false icicle=null          state=RESUMED stopped=false delayedResume=false finishing=false          keysPaused=false inHistory=true visible=true sleeping=false idle=true          fullscreen=true noDisplay=false immersive=false launchMode=1          frozenBeforeDestroy=false forceNewConfig=false          mActivityType=APPLICATION_ACTIVITY_TYPE          waitingVisible=false nowVisible=true lastVisibleTime=-7s760ms          realComponentName=com.miui.securitycenter/com.miui.antivirus.activity.MainActivity      * Hist #0: ActivityRecord{3c881d9 u0 com.miui.securitycenter/com.miui.securityscan.MainActivity t522}          packageName=com.miui.securitycenter processName=com.miui.securitycenter          launchedFromUid=10019 launchedFromPackage=com.miui.home userId=0          app=ProcessRecord{173ef13 14776:com.miui.securitycenter/1000}          Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10200000 cmp=com.miui.securitycenter/com.miui.securityscan.MainActivity bnds=[572,1277][754,1459] (has extras) }          frontOfTask=true task=TaskRecord{e20d722 #522 A=com.miui.securitycenter U=0 sz=2}          taskAffinity=com.miui.securitycenter          realActivity=com.miui.securitycenter/com.miui.securityscan.MainActivity          baseDir=/data/app/com.miui.securitycenter-2/base.apk          dataDir=/data/user/0/com.miui.securitycenter          stateNotNeeded=false componentSpecified=true mActivityType=0          compat={480dpi} labelRes=0x7f070507 icon=0x7f020050 theme=0x7f090024          config={1.0 ?mcc?mnc zh_CN ldltr sw360dp w360dp h620dp 480dpi nrml long port finger -keyb/v/h -nav/h s.6 themeChanged=0 themeChangedFlags=0}          stackConfigOverride={1.0 ?mcc?mnc ?locale ?layoutDir ?swdp ?wdp ?hdp ?density ?lsize ?long ?orien ?uimode ?night ?touch ?keyb/?/? ?nav/? themeChanged=0 themeChangedFlags=0}          taskDescription: iconFilename=null label="null" color=ffe6e6e6          launchFailed=false launchCount=0 lastLaunchTime=-10h14m48s354ms          haveState=true icicle=Bundle[mParcelledData.dataSize=4840]          state=STOPPED stopped=true delayedResume=false finishing=false          keysPaused=false inHistory=true visible=false sleeping=false idle=true          fullscreen=true noDisplay=false immersive=false launchMode=1          frozenBeforeDestroy=false forceNewConfig=false          mActivityType=APPLICATION_ACTIVITY_TYPE          waitingVisible=false nowVisible=false lastVisibleTime=-11s45ms          realComponentName=com.miui.securitycenter/com.miui.securityscan.MainActivity    Task id #482    * TaskRecord{52e270a #482 A=com.android.settings U=0 sz=1}      userId=0 effectiveUid=1000 mCallingUid=u0a19 mCallingPackage=com.miui.home      affinity=com.android.settings      intent={act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10200000 cmp=com.android.settings/.MiuiSettings}      origActivity=com.android.settings/.MainSettings      realActivity=com.android.settings/.MiuiSettings      autoRemoveRecents=false isPersistable=true numFullscreen=1 taskType=0 mTaskToReturnTo=1      rootWasReset=true mNeverRelinquishIdentity=true mReuseTask=false mLockTaskAuth=LOCK_TASK_AUTH_PINNABLE      Activities=[ActivityRecord{238fe2a u0 com.android.settings/.MainSettings t482}]      askedCompatMode=false inRecents=true isAvailable=true      lastThumbnail=null lastThumbnailFile=/data/system/recent_images/482_task_thumbnail.png      stackId=2      hasBeenVisible=true mResizeable=false firstActiveTime=1506503310726 lastActiveTime=1506503310726 (inactive for 59414s)      * Hist #0: ActivityRecord{238fe2a u0 com.android.settings/.MainSettings t482}          packageName=com.android.settings processName=com.android.settings          launchedFromUid=10019 launchedFromPackage=com.miui.home userId=0          app=ProcessRecord{6cf8664 8059:com.android.settings/1000}          Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10200000 cmp=com.android.settings/.MainSettings bnds=[76,1277][258,1459] (has extras) }          frontOfTask=true task=TaskRecord{52e270a #482 A=com.android.settings U=0 sz=1}          taskAffinity=com.android.settings          realActivity=com.android.settings/.MiuiSettings          baseDir=/system/priv-app/Settings/Settings.apk          dataDir=/data/user/0/com.android.settings          stateNotNeeded=false componentSpecified=true mActivityType=0          compat={480dpi} labelRes=0x7f0a018c icon=0x7f030000 theme=0x7f0f0082          config={1.0 ?mcc?mnc zh_CN ldltr sw360dp w360dp h620dp 480dpi nrml long port finger -keyb/v/h -nav/h s.6 themeChanged=0 themeChangedFlags=0}          stackConfigOverride={1.0 ?mcc?mnc ?locale ?layoutDir ?swdp ?wdp ?hdp ?density ?lsize ?long ?orien ?uimode ?night ?touch ?keyb/?/? ?nav/? themeChanged=0 themeChangedFlags=0}          taskDescription: iconFilename=null label="null" color=ffe6e6e6          launchFailed=false launchCount=0 lastLaunchTime=-13h54m31s586ms          haveState=true icicle=Bundle[mParcelledData.dataSize=2944]          state=STOPPED stopped=true delayedResume=false finishing=false          keysPaused=false inHistory=true visible=false sleeping=false idle=true          fullscreen=true noDisplay=false immersive=false launchMode=2          frozenBeforeDestroy=false forceNewConfig=false          mActivityType=APPLICATION_ACTIVITY_TYPE          waitingVisible=false nowVisible=false lastVisibleTime=-13h51m32s413ms          realComponentName=com.android.settings/.MainSettings    Task id #492    * TaskRecord{bd425b3 #492 A=com.miui.gallery.home U=16 sz=1}      userId=16 effectiveUid=u16a22 mCallingUid=u16a19 mCallingPackage=com.miui.home      affinity=com.miui.gallery.home      intent={act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10200000 cmp=com.miui.gallery/.activity.HomePageActivity}      realActivity=com.miui.gallery/.activity.HomePageActivity      autoRemoveRecents=false isPersistable=true numFullscreen=1 taskType=0 mTaskToReturnTo=1      rootWasReset=true mNeverRelinquishIdentity=true mReuseTask=false mLockTaskAuth=LOCK_TASK_AUTH_PINNABLE      Activities=[ActivityRecord{aeeeb29 u16 com.miui.gallery/.activity.HomePageActivity t492}]      askedCompatMode=false inRecents=true isAvailable=true      lastThumbnail=null lastThumbnailFile=/data/system/recent_images/492_task_thumbnail.png      stackId=2      hasBeenVisible=true mResizeable=false firstActiveTime=1506517260940 lastActiveTime=1506517260940 (inactive for 45463s)      * Hist #0: ActivityRecord{aeeeb29 u16 com.miui.gallery/.activity.HomePageActivity t492}          packageName=com.miui.gallery processName=com.miui.gallery          launchedFromUid=1610019 launchedFromPackage=com.miui.home userId=16          app=ProcessRecord{842c770 12823:com.miui.gallery/u16a22}          Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10200000 cmp=com.miui.gallery/.activity.HomePageActivity bnds=[820,983][1002,1165] (has extras) }          frontOfTask=true task=TaskRecord{bd425b3 #492 A=com.miui.gallery.home U=16 sz=1}          taskAffinity=com.miui.gallery.home          realActivity=com.miui.gallery/.activity.HomePageActivity          baseDir=/system/priv-app/MiuiGallery/MiuiGallery.apk          dataDir=/data/user/16/com.miui.gallery          stateNotNeeded=false componentSpecified=true mActivityType=0          compat={480dpi} labelRes=0x7f0d004b icon=0x7f030000 theme=0x7f0e0005          config={1.0 ?mcc?mnc zh_CN ldltr sw360dp w360dp h620dp 480dpi nrml long port finger -keyb/v/h -nav/h s.6 themeChanged=0 themeChangedFlags=0}          stackConfigOverride={1.0 ?mcc?mnc ?locale ?layoutDir ?swdp ?wdp ?hdp ?density ?lsize ?long ?orien ?uimode ?night ?touch ?keyb/?/? ?nav/? themeChanged=0 themeChangedFlags=0}          taskDescription: iconFilename=null label="null" color=ffe6e6e6          launchFailed=false launchCount=0 lastLaunchTime=-12h27m37s339ms          haveState=true icicle=Bundle[mParcelledData.dataSize=3316]          state=STOPPED stopped=true delayedResume=false finishing=false          keysPaused=false inHistory=true visible=false sleeping=false idle=true          fullscreen=true noDisplay=false immersive=false launchMode=0          frozenBeforeDestroy=false forceNewConfig=false          mActivityType=APPLICATION_ACTIVITY_TYPE          waitingVisible=false nowVisible=false lastVisibleTime=-12h27m36s599ms          realComponentName=com.miui.gallery/.activity.HomePageActivity    Task id #491    * TaskRecord{dd33ae9 #491 A=com.android.camera U=16 sz=1}      userId=16 effectiveUid=u16a17 mCallingUid=u16a19 mCallingPackage=com.miui.home      affinity=com.android.camera      intent={act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10200000 cmp=com.android.camera/.Camera}      realActivity=com.android.camera/.Camera      autoRemoveRecents=false isPersistable=true numFullscreen=1 taskType=0 mTaskToReturnTo=1      rootWasReset=true mNeverRelinquishIdentity=true mReuseTask=false mLockTaskAuth=LOCK_TASK_AUTH_PINNABLE      Activities=[ActivityRecord{c5b0cf5 u16 com.android.camera/.Camera t491}]      askedCompatMode=false inRecents=true isAvailable=true      lastThumbnail=null lastThumbnailFile=/data/system/recent_images/491_task_thumbnail.png      stackId=2      hasBeenVisible=true mResizeable=false firstActiveTime=1506507576521 lastActiveTime=1506507576521 (inactive for 55148s)      * Hist #0: ActivityRecord{c5b0cf5 u16 com.android.camera/.Camera t491}          packageName=com.android.camera processName=com.android.camera          launchedFromUid=1610019 launchedFromPackage=com.miui.home userId=16          app=ProcessRecord{f2df65c 12723:com.android.camera/u16a17}          Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10200000 cmp=com.android.camera/.Camera bnds=[821,1683][1003,1865] (has extras) }          frontOfTask=true task=TaskRecord{dd33ae9 #491 A=com.android.camera U=16 sz=1}          taskAffinity=com.android.camera          realActivity=com.android.camera/.Camera          baseDir=/system/priv-app/MiuiCamera/MiuiCamera.apk          dataDir=/data/user/16/com.android.camera          stateNotNeeded=false componentSpecified=true mActivityType=0          compat={480dpi} labelRes=0x7f0e0008 icon=0x7f030000 theme=0x7f0f0000          config={1.0 ?mcc?mnc zh_CN ldltr sw360dp w360dp h620dp 480dpi nrml long port finger -keyb/v/h -nav/h s.6 themeChanged=0 themeChangedFlags=0}          stackConfigOverride={1.0 ?mcc?mnc ?locale ?layoutDir ?swdp ?wdp ?hdp ?density ?lsize ?long ?orien ?uimode ?night ?touch ?keyb/?/? ?nav/? themeChanged=0 themeChangedFlags=0}          taskDescription: iconFilename=null label="null" color=ffe6e6e6          launchFailed=false launchCount=0 lastLaunchTime=-12h28m2s122ms          haveState=true icicle=Bundle[mParcelledData.dataSize=6364]          state=STOPPED stopped=true delayedResume=false finishing=false          keysPaused=false inHistory=true visible=false sleeping=false idle=true          fullscreen=true noDisplay=false immersive=false launchMode=1          frozenBeforeDestroy=false forceNewConfig=false          mActivityType=APPLICATION_ACTIVITY_TYPE          waitingVisible=false nowVisible=false lastVisibleTime=-12h27m53s609ms          realComponentName=com.android.camera/.Camera    Task id #487    * TaskRecord{a94b3c9 #487 A=com.miui.securityspace.ui.activity.PrivateSpaceMainActivity U=16 sz=1}      userId=16 effectiveUid=u16s1000 mCallingUid=u16a19 mCallingPackage=com.miui.home      affinity=com.miui.securityspace.ui.activity.PrivateSpaceMainActivity      intent={act=android.intent.action.VIEW cat=[android.intent.category.DEFAULT] flg=0x10a00000 cmp=com.miui.securitycore/com.miui.securityspace.ui.activity.PrivateSpaceMainActivity}      realActivity=com.miui.securitycore/com.miui.securityspace.ui.activity.PrivateSpaceMainActivity      autoRemoveRecents=false isPersistable=false numFullscreen=1 taskType=0 mTaskToReturnTo=1      rootWasReset=true mNeverRelinquishIdentity=true mReuseTask=false mLockTaskAuth=LOCK_TASK_AUTH_PINNABLE      Activities=[ActivityRecord{1eac077 u16 com.miui.securitycore/com.miui.securityspace.ui.activity.PrivateSpaceMainActivity t487}]      askedCompatMode=false inRecents=true isAvailable=true      lastThumbnail=null lastThumbnailFile=/data/system/recent_images/487_task_thumbnail.png      stackId=2      hasBeenVisible=true mResizeable=false firstActiveTime=1506507551898 lastActiveTime=1506507551898 (inactive for 55172s)      * Hist #0: ActivityRecord{1eac077 u16 com.miui.securitycore/com.miui.securityspace.ui.activity.PrivateSpaceMainActivity t487}          packageName=com.miui.securitycore processName=com.miui.securitycore          launchedFromUid=1610019 launchedFromPackage=com.miui.home userId=16          app=ProcessRecord{dcdcd7b 8884:com.miui.securitycore/u16s1000}          Intent { act=android.intent.action.VIEW cat=[android.intent.category.DEFAULT] flg=0x10a00000 cmp=com.miui.securitycore/com.miui.securityspace.ui.activity.PrivateSpaceMainActivity bnds=[324,983][506,1165] (has extras) }          frontOfTask=true task=TaskRecord{a94b3c9 #487 A=com.miui.securityspace.ui.activity.PrivateSpaceMainActivity U=16 sz=1}          taskAffinity=com.miui.securityspace.ui.activity.PrivateSpaceMainActivity          realActivity=com.miui.securitycore/com.miui.securityspace.ui.activity.PrivateSpaceMainActivity          baseDir=/data/app/com.miui.securitycore-1/base.apk          dataDir=/data/user/16/com.miui.securitycore          stateNotNeeded=false componentSpecified=true mActivityType=0          compat={480dpi} labelRes=0x7f080086 icon=0x7f020017 theme=0x100d0051          config={1.0 ?mcc?mnc zh_CN ldltr sw360dp w360dp h620dp 480dpi nrml long port finger -keyb/v/h -nav/h s.6 themeChanged=0 themeChangedFlags=0}          stackConfigOverride={1.0 ?mcc?mnc ?locale ?layoutDir ?swdp ?wdp ?hdp ?density ?lsize ?long ?orien ?uimode ?night ?touch ?keyb/?/? ?nav/? themeChanged=0 themeChangedFlags=0}          taskDescription: iconFilename=null label="null" color=ffe6e6e6          launchFailed=false launchCount=0 lastLaunchTime=-13h54m33s386ms          haveState=true icicle=Bundle[mParcelledData.dataSize=2824]          state=STOPPED stopped=true delayedResume=false finishing=false          keysPaused=false inHistory=true visible=false sleeping=false idle=true          fullscreen=true noDisplay=false immersive=false launchMode=0          frozenBeforeDestroy=false forceNewConfig=false          mActivityType=APPLICATION_ACTIVITY_TYPE          waitingVisible=false nowVisible=false lastVisibleTime=-12h29m50s491ms          realComponentName=com.miui.securitycore/com.miui.securityspace.ui.activity.PrivateSpaceMainActivity    Task id #486    * TaskRecord{3705aa7 #486 A=com.xiaomi.market U=16 sz=1}      userId=16 effectiveUid=u16a73 mCallingUid=u16a19 mCallingPackage=com.miui.home      affinity=com.xiaomi.market      intent={act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10200000 cmp=com.xiaomi.market/.ui.MarketTabActivity}      realActivity=com.xiaomi.market/.ui.MarketTabActivity      autoRemoveRecents=false isPersistable=true numFullscreen=1 taskType=0 mTaskToReturnTo=1      rootWasReset=true mNeverRelinquishIdentity=true mReuseTask=false mLockTaskAuth=LOCK_TASK_AUTH_PINNABLE      Activities=[ActivityRecord{256782 u16 com.xiaomi.market/.ui.MarketTabActivity t486}]      askedCompatMode=false inRecents=true isAvailable=true      lastThumbnail=null lastThumbnailFile=/data/system/recent_images/486_task_thumbnail.png      stackId=2      hasBeenVisible=true mResizeable=false firstActiveTime=1506495342832 lastActiveTime=1506495342832 (inactive for 67381s)      * Hist #0: ActivityRecord{256782 u16 com.xiaomi.market/.ui.MarketTabActivity t486}          packageName=com.xiaomi.market processName=com.xiaomi.market          launchedFromUid=1610019 launchedFromPackage=com.miui.home userId=16          app=null          Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10200000 cmp=com.xiaomi.market/.ui.MarketTabActivity bnds=[324,1277][506,1459] (has extras) }          frontOfTask=true task=TaskRecord{3705aa7 #486 A=com.xiaomi.market U=16 sz=1}          taskAffinity=com.xiaomi.market          realActivity=com.xiaomi.market/.ui.MarketTabActivity          baseDir=/system/app/MiuiSuperMarket/MiuiSuperMarket.apk          dataDir=/data/user/16/com.xiaomi.market          stateNotNeeded=false componentSpecified=true mActivityType=0          compat={480dpi} labelRes=0x7f090011 icon=0x7f020065 theme=0x7f0a00b7          config={1.0 ?mcc?mnc zh_CN ldltr sw360dp w360dp h620dp 480dpi nrml long port finger -keyb/v/h -nav/h s.6 themeChanged=0 themeChangedFlags=0}          stackConfigOverride={1.0 ?mcc?mnc ?locale ?layoutDir ?swdp ?wdp ?hdp ?density ?lsize ?long ?orien ?uimode ?night ?touch ?keyb/?/? ?nav/? themeChanged=0 themeChangedFlags=0}          taskDescription: iconFilename=null label="null" color=ffe6e6e6          launchFailed=false launchCount=0 lastLaunchTime=-14h12m54s460ms          haveState=true icicle=Bundle[mParcelledData.dataSize=1704]          state=DESTROYED stopped=true delayedResume=false finishing=false          keysPaused=false inHistory=true visible=false sleeping=true idle=true          fullscreen=true noDisplay=false immersive=false launchMode=0          frozenBeforeDestroy=false forceNewConfig=false          mActivityType=APPLICATION_ACTIVITY_TYPE          waitingVisible=false nowVisible=false lastVisibleTime=-14h12m54s42ms          realComponentName=com.xiaomi.market/.ui.MarketTabActivity    Running activities (most recent first):      TaskRecord{e20d722 #522 A=com.miui.securitycenter U=0 sz=2}        Run #5: ActivityRecord{ed3b00 u0 com.miui.securitycenter/com.miui.antivirus.activity.MainActivity t522}        Run #4: ActivityRecord{3c881d9 u0 com.miui.securitycenter/com.miui.securityscan.MainActivity t522}      TaskRecord{bd425b3 #492 A=com.miui.gallery.home U=16 sz=1}        Run #3: ActivityRecord{aeeeb29 u16 com.miui.gallery/.activity.HomePageActivity t492}      TaskRecord{dd33ae9 #491 A=com.android.camera U=16 sz=1}        Run #2: ActivityRecord{c5b0cf5 u16 com.android.camera/.Camera t491}      TaskRecord{a94b3c9 #487 A=com.miui.securityspace.ui.activity.PrivateSpaceMainActivity U=16 sz=1}        Run #1: ActivityRecord{1eac077 u16 com.miui.securitycore/com.miui.securityspace.ui.activity.PrivateSpaceMainActivity t487}      TaskRecord{52e270a #482 A=com.android.settings U=0 sz=1}        Run #0: ActivityRecord{238fe2a u0 com.android.settings/.MainSettings t482}    mResumedActivity: ActivityRecord{ed3b00 u0 com.miui.securitycenter/com.miui.antivirus.activity.MainActivity t522}    mLastPausedActivity: ActivityRecord{3c881d9 u0 com.miui.securitycenter/com.miui.securityscan.MainActivity t522}  Stack #0://该栈目前处于后台，该栈中只维护桌面进程的activity    Task id #447    * TaskRecord{bc634f8 #447 A=com.miui.home U=0 sz=1}      userId=0 effectiveUid=u0a19 mCallingUid=1000 mCallingPackage=android      affinity=com.miui.home      intent={act=android.intent.action.MAIN cat=[android.intent.category.HOME] flg=0x10800000 cmp=com.miui.home/.launcher.Launcher}      realActivity=com.miui.home/.launcher.Launcher      autoRemoveRecents=false isPersistable=false numFullscreen=1 taskType=1 mTaskToReturnTo=0      rootWasReset=false mNeverRelinquishIdentity=true mReuseTask=false mLockTaskAuth=LOCK_TASK_AUTH_PINNABLE      Activities=[ActivityRecord{ddaeff1 u0 com.miui.home/.launcher.Launcher t447}]      askedCompatMode=false inRecents=true isAvailable=true      lastThumbnail=null lastThumbnailFile=/data/system/recent_images/447_task_thumbnail.png      stackId=0      hasBeenVisible=true mResizeable=false firstActiveTime=1506525836343 lastActiveTime=1506525836343 (inactive for 36888s)      * Hist #0: ActivityRecord{ddaeff1 u0 com.miui.home/.launcher.Launcher t447}          packageName=com.miui.home processName=com.miui.home          launchedFromUid=0 launchedFromPackage=null userId=0          app=ProcessRecord{6785271 3582:com.miui.home/u0a19}          Intent { act=android.intent.action.MAIN cat=[android.intent.category.HOME] flg=0x10800000 cmp=com.miui.home/.launcher.Launcher }          frontOfTask=true task=TaskRecord{bc634f8 #447 A=com.miui.home U=0 sz=1}          taskAffinity=com.miui.home          realActivity=com.miui.home/.launcher.Launcher          baseDir=/system/priv-app/MiuiHome/MiuiHome.apk          dataDir=/data/user/0/com.miui.home          stateNotNeeded=true componentSpecified=false mActivityType=1          compat={480dpi} labelRes=0x7f0d0004 icon=0x7f02009d theme=0x7f070000          config={1.0 ?mcc?mnc zh_CN ldltr sw360dp w360dp h620dp 480dpi nrml long port finger -keyb/v/h -nav/h s.6 themeChanged=0 themeChangedFlags=0}          stackConfigOverride={1.0 ?mcc?mnc ?locale ?layoutDir ?swdp ?wdp ?hdp ?density ?lsize ?long ?orien ?uimode ?night ?touch ?keyb/?/? ?nav/? themeChanged=0 themeChangedFlags=0}          taskDescription: iconFilename=null label="null" color=ffe6e6e6          launchFailed=false launchCount=0 lastLaunchTime=-1d13h38m40s173ms          haveState=true icicle=Bundle[mParcelledData.dataSize=7684]          state=STOPPED stopped=true delayedResume=false finishing=false          keysPaused=false inHistory=true visible=false sleeping=false idle=true          fullscreen=true noDisplay=false immersive=false launchMode=2          frozenBeforeDestroy=false forceNewConfig=false          mActivityType=HOME_ACTIVITY_TYPE          waitingVisible=false nowVisible=false lastVisibleTime=-10h15m5s833ms          realComponentName=com.miui.home/.launcher.Launcher    Task id #483    * TaskRecord{dada6bf #483 A=com.miui.home U=16 sz=1}      userId=16 effectiveUid=u16a19 mCallingUid=1000 mCallingPackage=android      affinity=com.miui.home      intent={act=android.intent.action.MAIN cat=[android.intent.category.HOME] flg=0x10800000 cmp=com.miui.home/.launcher.Launcher}      realActivity=com.miui.home/.launcher.Launcher      autoRemoveRecents=false isPersistable=false numFullscreen=1 taskType=1 mTaskToReturnTo=0      rootWasReset=false mNeverRelinquishIdentity=true mReuseTask=false mLockTaskAuth=LOCK_TASK_AUTH_PINNABLE      Activities=[ActivityRecord{9b42ac0 u16 com.miui.home/.launcher.Launcher t483}]      askedCompatMode=false inRecents=true isAvailable=true      lastThumbnail=null lastThumbnailFile=/data/system/recent_images/483_task_thumbnail.png      stackId=0      hasBeenVisible=true mResizeable=false firstActiveTime=1506517264072 lastActiveTime=1506517264072 (inactive for 45460s)      * Hist #0: ActivityRecord{9b42ac0 u16 com.miui.home/.launcher.Launcher t483}          packageName=com.miui.home processName=com.miui.home          launchedFromUid=0 launchedFromPackage=null userId=16          app=ProcessRecord{278618c 1695:com.miui.home/u16a19}          Intent { act=android.intent.action.MAIN cat=[android.intent.category.HOME] flg=0x10800000 cmp=com.miui.home/.launcher.Launcher }          frontOfTask=true task=TaskRecord{dada6bf #483 A=com.miui.home U=16 sz=1}          taskAffinity=com.miui.home          realActivity=com.miui.home/.launcher.Launcher          baseDir=/system/priv-app/MiuiHome/MiuiHome.apk          dataDir=/data/user/16/com.miui.home          stateNotNeeded=true componentSpecified=false mActivityType=1          compat={480dpi} labelRes=0x7f0d0004 icon=0x7f02009d theme=0x7f070000          config={1.0 ?mcc?mnc zh_CN ldltr sw360dp w360dp h620dp 480dpi nrml long port finger -keyb/v/h -nav/h s.6 themeChanged=0 themeChangedFlags=0}          stackConfigOverride={1.0 ?mcc?mnc ?locale ?layoutDir ?swdp ?wdp ?hdp ?density ?lsize ?long ?orien ?uimode ?night ?touch ?keyb/?/? ?nav/? themeChanged=0 themeChangedFlags=0}          taskDescription: iconFilename=null label="null" color=ffe6e6e6          launchFailed=false launchCount=0 lastLaunchTime=-14h36m31s466ms          haveState=true icicle=Bundle[mParcelledData.dataSize=7676]          state=STOPPED stopped=true delayedResume=false finishing=false          keysPaused=false inHistory=true visible=false sleeping=false idle=true          fullscreen=true noDisplay=false immersive=false launchMode=2          frozenBeforeDestroy=false forceNewConfig=false          mActivityType=HOME_ACTIVITY_TYPE          waitingVisible=false nowVisible=false lastVisibleTime=-12h24m19s957ms          realComponentName=com.miui.home/.launcher.Launcher    Running activities (most recent first):      TaskRecord{bc634f8 #447 A=com.miui.home U=0 sz=1}        Run #1: ActivityRecord{ddaeff1 u0 com.miui.home/.launcher.Launcher t447}      TaskRecord{dada6bf #483 A=com.miui.home U=16 sz=1}        Run #0: ActivityRecord{9b42ac0 u16 com.miui.home/.launcher.Launcher t483}    mLastPausedActivity: ActivityRecord{ddaeff1 u0 com.miui.home/.launcher.Launcher t447}  mFocusedActivity: ActivityRecord{ed3b00 u0 com.miui.securitycenter/com.miui.antivirus.activity.MainActivity t522}  mFocusedStack=ActivityStack{47db7b stackId=2, 6 tasks} mLastFocusedStack=ActivityStack{47db7b stackId=2, 6 tasks}  mSleepTimeout=false  mCurTaskId=522  mUserStackInFront={0=0, 16=0}  mActivityContainers={0=ActivtyContainer{0}A, 2=ActivtyContainer{2}A}  mLockTaskModeState=NONE mLockTaskPackages (userId:packages)=    0:[]    10:[]    11:[]    12:[]    13:[]    14:[]    15:[]    16:[]    99:[] mLockTaskModeTasks[]msy@msy-OptiPlex-7040:~/src/m-alpha-code/packages/apps/SecurityCenter$