查看activity task相关信息

可以使用命令

adb shell dumpsys activity

查看的结果如下

ACTIVITY MANAGER PENDING INTENTS (dumpsys activity intents)
  * PendingIntentRecord{42deee60 com.android.systemui startActivity}
  * PendingIntentRecord{42eb97e0 com.miui.systemAdSolution broadcastIntent}
  * PendingIntentRecord{42f449b0 com.tencent.mobileqq broadcastIntent}
  * PendingIntentRecord{42dd5978 com.miui.securitycenter startService}
  * PendingIntentRecord{427d0fa8 android broadcastIntent}
  * PendingIntentRecord{42e21218 com.amazon.kindle startActivity}
  * PendingIntentRecord{42e0d6d8 com.cleanmaster.sdk broadcastIntent}
  * PendingIntentRecord{427796e0 com.tencent.mobileqq broadcastIntent}
  * PendingIntentRecord{42dc5660 com.miui.securitycenter startService}
  * PendingIntentRecord{429d5350 com.xiaomi.xmsf startService}
  * PendingIntentRecord{42cf74f0 android startActivity}
........

ACTIVITY MANAGER BROADCAST STATE (dumpsys activity broadcasts)
  Historical broadcasts [foreground]:
  #: BroadcastRecord{430d3e20 u- android.intent.action.SCREEN_OFF}
    act=android.intent.action.SCREEN_OFF flg=0x50000010
  #: BroadcastRecord{433c4ad8 u- android.intent.action.SCREEN_ON}
    act=android.intent.action.SCREEN_ON flg=0x50000010
  #: BroadcastRecord{4344fa98 u- android.intent.action.TIME_TICK}
    act=android.intent.action.TIME_TICK flg=0x50000014 (has extras)
    extras: Bundle[{android.intent.extra.ALARM_COUNT=}]
..........

ACTIVITY MANAGER CONTENT PROVIDERS (dumpsys activity providers)
  Published single-user content providers (by class):
  * ContentProviderRecord{42528fb0 u0 com.android.systemui/.statusbar.NotificationProvider}
    proc=ProcessRecord{42514e70 :com.android.systemui/}
    singleton=true
    authority=keyguard.notification
  * ContentProviderRecord{42d01b00 u0 com.android.phone/.IccProvider}
    proc=ProcessRecord{42cc9f18 :com.android.phone/}
    singleton=true
    authority=icc
  * ContentProviderRecord{42bc6ed0 u0 com.android.providers.settings/.SettingsProvider}
    proc=ProcessRecord{ :system/}
    singleton=true
    authority=settings
..........
ACTIVITY MANAGER SERVICES (dumpsys activity services)
  User  active services:
  * ServiceRecord{42dbc130 u0 com.android.mms/.transaction.SmsReportService}
    app=ProcessRecord{425256b0 :com.android.mms/u0a18}
    created=-17h0m47s339ms started=true connections=
  * ServiceRecord{42f2bc38 u0 com.android.settings/.wifi.MiuiWifiService}
    app=ProcessRecord{42d3bc58 :com.android.settings/}
    created=-17h0m39s273ms started=true connections=
  * ServiceRecord{42d84600 u0 com.qualcomm.location/com.qualcomm.lib.location.osagent.OsAgent}
    app=ProcessRecord{ :system/}
..........
ACTIVITY MANAGER ACTIVITIES (dumpsys activity activities)
  Stack #:
    Task id #
      TaskRecord{42d39920 # A=com.miui.home U= sz=}
      Intent { act=android.intent.action.MAIN cat=[android.intent.category.HOME] flg=0x10e00000 cmp=com.miui.home/.launcher.Launcher }
        Hist #: ActivityRecord{42cf02f0 u0 com.miui.home/.launcher.Launcher t1}
          Intent { act=android.intent.action.MAIN cat=[android.intent.category.HOME] flg=0x10800000 cmp=com.miui.home/.launcher.Launcher }
          ProcessRecord{ :com.miui.home/u0a16}

    Running activities (most recent first):
      TaskRecord{42d39920 # A=com.miui.home U= sz=}
        Run #: ActivityRecord{42cf02f0 u0 com.miui.home/.launcher.Launcher t1}
..........

里面包含的是关于android 四大组件的相关信息。

如果我们想查询里面单独的一项，只需要执行每一项后面提示的名利就好了。如activity堆栈信息，我们就可以使用

ACTIVITY MANAGER ACTIVITIES (dumpsys activity activities)

adb shell dumpsys activity activities