View the Task’s activity stack

by

From the command line, you can use: adb shell dumpsys activity

This asks the activity manager to print a dump of its current state. The first part of that is the complete activity history, organized by task. There is also a lot of stuff printed after that, so you may need to scroll up a bit to find what you want.

Here is an example of its output (the exact contents varies across platform versions), showing the top task being contacts with two activities, and behind that the launcher with one activity:

Activities in Current Activity Manager State:
  * TaskRecord{44d07218 #4 A android.task.contacts}
    clearOnBackground=true numActivities=2 rootWasReset=true
    affinity=android.task.contacts
    intent={act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10600000 cmp=com.android.contacts/.DialtactsActivity bnds=[125,640][235,758]}
    origActivity=com.android.contacts/.DialtactsContactsEntryActivity
    realActivity=com.android.contacts/.DialtactsActivity
    lastActiveTime=288203177 (inactive for 14s)
    * Hist #8: HistoryRecord{44b87a30 com.android.contacts/.ViewContactActivity}
        packageName=com.android.contacts processName=android.process.acore
        launchedFromUid=10004 app=ProcessRecord{44c4f348 1168:android.process.acore/10004}
        Intent { act=android.intent.action.VIEW dat=content://com.android.contacts/contacts/lookup/144i148.144i461a29500afc8eeb/1927 cmp=com.android.contacts/.ViewContactActivity }
        frontOfTask=false task=TaskRecord{44d07218 #4 A android.task.contacts}
        taskAffinity=android.task.contacts
        realActivity=com.android.contacts/.ViewContactActivity
        base=/system/app/Contacts.apk/system/app/Contacts.apk data=/data/data/com.android.contacts
        labelRes=0x7f090012 icon=0x7f02006b theme=0x7f0e0004
        stateNotNeeded=false componentSpecified=false isHomeActivity=false
        configuration={ scale=1.0 imsi=310/4 loc=en_US touch=3 keys=2/1/2 nav=2/2 orien=1 layout=34}
        resultTo=HistoryRecord{44d174d0 com.android.contacts/.DialtactsContactsEntryActivity} resultWho=favorites resultCode=2
        launchFailed=false haveState=false icicle=null
        state=RESUMED stopped=false delayedResume=false finishing=false
        keysPaused=false inHistory=true persistent=false launchMode=0
        fullscreen=true visible=true frozenBeforeDestroy=false thumbnailNeeded=false idle=true
        waitingVisible=false nowVisible=true
    * Hist #7: HistoryRecord{44d174d0 com.android.contacts/.DialtactsContactsEntryActivity}
        packageName=com.android.contacts processName=android.process.acore
        launchedFromUid=10004 app=ProcessRecord{44c4f348 1168:android.process.acore/10004}
        Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10200000 cmp=com.android.contacts/.DialtactsContactsEntryActivity bnds=[125,640][235,758] }
        frontOfTask=true task=TaskRecord{44d07218 #4 A android.task.contacts}
        taskAffinity=android.task.contacts
        realActivity=com.android.contacts/.DialtactsActivity
        base=/system/app/Contacts.apk/system/app/Contacts.apk data=/data/data/com.android.contacts
        labelRes=0x7f090007 icon=0x7f02006b theme=0x7f0e0000
        stateNotNeeded=false componentSpecified=true isHomeActivity=false
        configuration={ scale=1.0 imsi=310/4 loc=en_US touch=3 keys=2/1/2 nav=2/2 orien=1 layout=34}
        launchFailed=false haveState=true icicle=Bundle[mParcelledData.dataSize=4196]
        state=STOPPED stopped=true delayedResume=false finishing=false
        keysPaused=false inHistory=true persistent=false launchMode=2
        fullscreen=true visible=false frozenBeforeDestroy=false thumbnailNeeded=false idle=true
  * TaskRecord{44c4ee90 #2 A com.android.launcher}
    clearOnBackground=true numActivities=1 rootWasReset=true
    affinity=com.android.launcher
    intent={act=android.intent.action.MAIN cat=[android.intent.category.HOME] flg=0x10600000 cmp=com.android.launcher/.Launcher}
    realActivity=com.android.launcher/.Launcher
    lastActiveTime=214734838 (inactive for 73483s)
    * Hist #6: HistoryRecord{44c4d988 com.android.launcher/.Launcher}
        packageName=com.android.launcher processName=android.process.acore
        launchedFromUid=0 app=ProcessRecord{44c4f348 1168:android.process.acore/10004}
        Intent { act=android.intent.action.MAIN cat=[android.intent.category.HOME] flg=0x10000000 cmp=com.android.launcher/.Launcher }
        frontOfTask=true task=TaskRecord{44c4ee90 #2 A com.android.launcher}
        taskAffinity=com.android.launcher
        realActivity=com.android.launcher/.Launcher
        base=/system/app/Launcher.apk/system/app/Launcher.apk data=/data/data/com.android.launcher
        labelRes=0x7f0a0000 icon=0x7f020015 theme=0x103005f
        stateNotNeeded=true componentSpecified=false isHomeActivity=true
        configuration={ scale=1.0 imsi=310/4 loc=en_US touch=3 keys=2/1/2 nav=2/2 orien=1 layout=34}
        launchFailed=false haveState=true icicle=Bundle[mParcelledData.dataSize=5964]
        state=STOPPED stopped=true delayedResume=false finishing=false
        keysPaused=false inHistory=true persistent=false launchMode=2
        fullscreen=true visible=false frozenBeforeDestroy=false thumbnailNeeded=false idle=true

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