dumpsys 常用命令

查看手机各类服务的项目：

adb shell service list;

查看应用的内存使用情况：

adb shell dumpsys meminfo packagenameorpid

查看servicecs使用细节

adb shell dumpsys activity services
查看activity使用细节

adb shell dumpsys activity
dumpsys命令可以显示手机中所有应用程序的信息，并且也会给出现在手机的状态。

adb shell dumpsys statusbar 显示状态栏相关的信息

查看某个应用（包）启动了几个服务。如：
dumpsys activity services com.android.settings
ACTIVITY MANAGER SERVICES (dumpsys activity services)
User 0 active services:
* ServiceRecord{e2ff42 u0 com.android.settings/com.tpw.download.DownloadService}
intent={cmp=com.android.settings/com.tpw.download.DownloadService}
packageName=com.android.settings
processName=com.android.settings
baseDir=/system/priv-app/Settings/Settings.apk
dataDir=/data/user/0/com.android.settings
app=ProcessRecord{693c84 15514:com.android.settings/1000}
isForeground=true foregroundId=2130837737 foregroundNoti=Notification(pri=-2 contentView=com.android.settings/0x1090088 vibrate=null sound=null defaults=0x0 flags=0x62 color=0xff607d8b vis=PRIVATE)
createTime=-30s676ms startingBgTimeout=-15s674ms
lastActivity=-30s675ms restartTime=-30s675ms createdFromFg=false
startRequested=true delayedStop=false stopIfKilled=false callStart=true lastStartId=1