adb shell dumpsys activity activities调用信息简析

活动栈

通过执行上面命令，可以得到类似如下格式的信息：

Stack #45: type=standard mode=fullscreen
  isSleeping=false
  mBounds=Rect(0, 0 - 0, 0)
        ......
Stack #0: type=home mode=fullscreen
  isSleeping=false
  mBounds=Rect(0, 0 - 0, 0)
        ......
Stack #1: type=recents mode=fullscreen
  isSleeping=false
  mBounds=Rect(0, 0 - 0, 0)
          ......

其中每个Stack开始代表一个App的活动栈，每个活动栈有一个id，如上所示的Stack #45中的45。

android系统中目前定义了两种类型的Stack，系统预定义的静态栈，总共有五种，如下所示：

0 HOME_STACK_ID：Home应用以及recents app所在的栈

1 FULLSCREEN_WORKSPACE_STACK_ID：一般应用所在的栈

2 FREEFORM_WORKSPACE_STACK_ID：类似桌面操作系统

3 DOCKED_STACK_ID：分屏

4 PINNED_STACK_ID：画中画栈

另一种栈，是系统动态生成的，它的id就是大于4

Stack信息分析

我们抽取dump出的一个stack进行分析:

Stack #4: type=standard mode=fullscreen     //Stack信息
  isSleeping=false
  mBounds=Rect(0, 0 - 0, 0)
    Task id #51                                                     //Task信息
    mBounds=Rect(0, 0 - 0, 0)
    mMinWidth=-1
    mMinHeight=-1
    mLastNonFullscreenBounds=null
    * TaskRecord{e0bdfdf #51 A=android.tplink.sjj.teststack U=0 StackId=4 sz=2}
      userId=0 effectiveUid=u0a128 mCallingUid=u0a28 mUserSetupComplete=true mCallingPackage=com.cyanogenmod.trebuchet
      affinity=android.tplink.sjj.teststack
      intent={act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10200000 cmp=android.tplink.sjj.teststack/.MainActivity}                                //启动信息，包括启动源和被启动app的MainActivity
      realActivity=android.tplink.sjj.teststack/.MainActivity
      autoRemoveRecents=false isPersistable=true numFullscreen=2 activityType=1
      rootWasReset=true mNeverRelinquishIdentity=true mReuseTask=false mLockTaskAuth=LOCK_TASK_AUTH_PINNABLE
      Activities=[ActivityRecord{4542de6 u0 android.tplink.sjj.teststack/.MainActivity t51}, ActivityRecord{898d92a u0 android.tplink.sjj.teststack/.FirstActivity t51}]                             //当前栈中Activity记录
      askedCompatMode=false inRecents=true isAvailable=true
      mRootProcess=ProcessRecord{ebe742c 31812:android.tplink.sjj.teststack/u0a128}
      stackId=4
      hasBeenVisible=true mResizeMode=RESIZE_MODE_RESIZEABLE_VIA_SDK_VERSION mSupportsPictureInPicture=false isResizeable=true lastActiveTime=256734507 (inactive for 30s)
      * Hist #1: ActivityRecord{898d92a u0 android.tplink.sjj.teststack/.FirstActivity t51}   //栈中Activity调用历史（最近的）
          packageName=android.tplink.sjj.teststack processName=android.tplink.sjj.teststack
          launchedFromUid=10128 launchedFromPackage=android.tplink.sjj.teststack userId=0
          app=ProcessRecord{ebe742c 31812:android.tplink.sjj.teststack/u0a128}
          Intent { flg=0x10000000 cmp=android.tplink.sjj.teststack/.FirstActivity }
          frontOfTask=false task=TaskRecord{e0bdfdf #51 A=android.tplink.sjj.teststack U=0 StackId=4 sz=2}
          taskAffinity=android.tplink.sjj.teststack
          realActivity=android.tplink.sjj.teststack/.FirstActivity
          baseDir=/data/app/android.tplink.sjj.teststack-Cu_ETALVG7u-Plh9vUC5Ug==/base.apk
          dataDir=/data/user/0/android.tplink.sjj.teststack
          splitDir=[/data/app/android.tplink.sjj.teststack-Cu_ETALVG7u-Plh9vUC5Ug==/split_lib_dependencies_apk.apk, 

                                       ..........................................
          fullscreen=true noDisplay=false immersive=false launchMode=2
          frozenBeforeDestroy=false forceNewConfig=false
          mActivityType=standard
          waitingVisible=false nowVisible=true lastVisibleTime=-33s65ms
          resizeMode=RESIZE_MODE_RESIZEABLE_VIA_SDK_VERSION
          mLastReportedMultiWindowMode=false mLastReportedPictureInPictureMode=false
      * Hist #0: ActivityRecord{4542de6 u0 android.tplink.sjj.teststack/.MainActivity t51}   //同上，这是在上个历史之前的
          packageName=android.tplink.sjj.teststack processName=android.tplink.sjj.teststack
          launchedFromUid=10028 launchedFromPackage=com.cyanogenmod.trebuchet userId=0
          app=ProcessRecord{ebe742c 31812:android.tplink.sjj.teststack/u0a128}
          Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10200000 cmp=android.tplink.sjj.teststack/.MainActivity bnds=[24,204][192,398] }
          frontOfTask=true task=TaskRecord{e0bdfdf #51 A=android.tplink.sjj.teststack U=0 StackId=4 sz=2}
          taskAffinity=android.tplink.sjj.teststack
          realActivity=android.tplink.sjj.teststack/.MainActivity
          baseDir=/data/app/android.tplink.sjj.teststack-Cu_ETALVG7u-Plh9vUC5Ug==/base.apk
          dataDir=/data/user/0/android.tplink.sjj.teststack
          splitDir=[/data/app/android.tplink.sjj.teststack-Cu_ETALVG7u-Plh9vUC5Ug==/split_lib_dependencies_apk.apk, 
          fullscreen=true noDisplay=false immersive=false launchMode=0
          frozenBeforeDestroy=false forceNewConfig=false
          mActivityType=standard
          waitingVisible=false nowVisible=false lastVisibleTime=-36s658ms
          resizeMode=RESIZE_MODE_RESIZEABLE_VIA_SDK_VERSION
          mLastReportedMultiWindowMode=false mLastReportedPictureInPictureMode=false

                                         .............................................

    Running activities (most recent first):                   //最近该任务栈中活动了的Activity，按最近时间排列
      TaskRecord{e0bdfdf #51 A=android.tplink.sjj.teststack U=0 StackId=4 sz=2}
        Run #1: ActivityRecord{898d92a u0 android.tplink.sjj.teststack/.FirstActivity t51}
        Run #0: ActivityRecord{4542de6 u0 android.tplink.sjj.teststack/.MainActivity t51}

    mResumedActivity: ActivityRecord{898d92a u0 android.tplink.sjj.teststack/.FirstActivity t51}   //当前页面Activity
    mLastPausedActivity: ActivityRecord{4542de6 u0 android.tplink.sjj.teststack/.MainActivity t51}  //最后一个退出前台的Activity

提取信息

通过linux管道机制，用adb打印的信息可以利用grep，sed提取自己需要的信息，可以写一个自动分析脚本