发布日期：2021-06-30 21:51:54 浏览次数：2 分类：技术文章

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Android提供的dumpsys工具可以用于查看感兴趣的系统服务信息与状态，手机连接电脑后可以直接命令行执行adb shell dumpsys 查看所有支持的Service但是这样输出的太多，可以通过dumpsys | grep "DUMP OF SERVICE" 仅显示主要的Service的信息

一、列出dumpsys所有支持命令

                         
> adb shell 
$ dumpsys | 
grep
"DUMP OF SERVICE"

以下是在三星S3手机上的输出信息

                                  
C:\Windows\System32>adb shell 
shell@m:/ $ dumpsys | 
grep
"DUMP OF SERVICE"
dumpsys | 
grep
"DUMP OF SERVICE"
DUMP OF SERVICE AtCmdFwd: 
DUMP OF SERVICE CustomFrequencyManagerService: 
DUMP OF SERVICE DirEncryptService: 
DUMP OF SERVICE Exynos.HWCService: 
DUMP OF SERVICE Exynos.IPService: 
DUMP OF SERVICE FMPlayer: 
DUMP OF SERVICE LEDService: 
DUMP OF SERVICE SecTVOutService: 
DUMP OF SERVICE SurfaceFlinger: 
DUMP OF SERVICE TvoutService_C: 
DUMP OF SERVICE accessibility: 
DUMP OF SERVICE account: 
DUMP OF SERVICE activity: 
DUMP OF SERVICE alarm: 
DUMP OF SERVICE android.security.keystore: 
DUMP OF SERVICE application_policy: 
DUMP OF SERVICE appops: 
DUMP OF SERVICE appwidget: 
DUMP OF SERVICE audio: 
DUMP OF SERVICE backup: 
DUMP OF SERVICE battery: 
DUMP OF SERVICE batteryinfo: 
DUMP OF SERVICE bluetooth_manager: 
DUMP OF SERVICE bluetooth_secure_mode_manager: 
DUMP OF SERVICE clipboard: 
DUMP OF SERVICE clipboardEx: 
DUMP OF SERVICE commontime_management: 
DUMP OF SERVICE connectivity: 
DUMP OF SERVICE container_service: 
DUMP OF SERVICE content: 
DUMP OF SERVICE country_detector: 
DUMP OF SERVICE cpuinfo: 
DUMP OF SERVICE dbinfo: 
DUMP OF SERVICE device_policy: 
DUMP OF SERVICE devicestoragemonitor: 
DUMP OF SERVICE diskstats: 
DUMP OF SERVICE display: 
DUMP OF SERVICE dreams: 
DUMP OF SERVICE drm.drmManager: 
DUMP OF SERVICE dropbox: 
DUMP OF SERVICE edmnativehelper: 
DUMP OF SERVICE enterprise_license_policy: 
DUMP OF SERVICE enterprise_policy: 
DUMP OF SERVICE entropy: 
DUMP OF SERVICE gfxinfo: 
DUMP OF SERVICE hardware: 
DUMP OF SERVICE harmony_eas_service: 
DUMP OF SERVICE input: 
DUMP OF SERVICE input_method: 
DUMP OF SERVICE iphonesubinfo: 
DUMP OF SERVICE isms: 
DUMP OF SERVICE license_log_service: 
DUMP OF SERVICE location: 
DUMP OF SERVICE lock_settings: 
DUMP OF SERVICE log_manager_service: 
DUMP OF SERVICE mdm.remotedesktop: 
DUMP OF SERVICE media.audio_flinger: 
DUMP OF SERVICE media.audio_policy: 
DUMP OF SERVICE media.camera: 
DUMP OF SERVICE media.player: 
DUMP OF SERVICE meminfo: 
DUMP OF SERVICE motion_recognition: 
DUMP OF SERVICE 
mount
: 
DUMP OF SERVICE multiwindow: 
DUMP OF SERVICE netpolicy: 
DUMP OF SERVICE netstats: 
DUMP OF SERVICE network_management: 
DUMP OF SERVICE nfc: 
DUMP OF SERVICE nfccontroller: 
DUMP OF SERVICE notification: 
DUMP OF SERVICE package: 
DUMP OF SERVICE permission: 
DUMP OF SERVICE phone: 
DUMP OF SERVICE phone_restriction_policy: 
DUMP OF SERVICE phoneext: 
DUMP OF SERVICE power: 
DUMP OF SERVICE remoteinjection: 
DUMP OF SERVICE samplingprofiler: 
DUMP OF SERVICE samsung.smartfaceservice: 
DUMP OF SERVICE scheduling_policy: 
DUMP OF SERVICE search: 
DUMP OF SERVICE sec_analytics: 
DUMP OF SERVICE secontroller: 
DUMP OF SERVICE sensorservice: 
DUMP OF SERVICE serial: 
DUMP OF SERVICE servicediscovery: 
DUMP OF SERVICE simphonebook: 
DUMP OF SERVICE sip: 
DUMP OF SERVICE statusbar: 
DUMP OF SERVICE telephony.registry: 
DUMP OF SERVICE textservices: 
DUMP OF SERVICE tvoutservice: 
DUMP OF SERVICE uimode: 
DUMP OF SERVICE updatelock: 
DUMP OF SERVICE usagestats: 
DUMP OF SERVICE usb: 
DUMP OF SERVICE user: 
DUMP OF SERVICE vibrator: 
DUMP OF SERVICE voip: 
DUMP OF SERVICE wallpaper: 
DUMP OF SERVICE wfd: 
DUMP OF SERVICE wifi: 
DUMP OF SERVICE wifi_policy: 
DUMP OF SERVICE wifip2p: 
DUMP OF SERVICE window:
           
         

二、具体命令如何查看帮助

从上面可以看出Service非常多，“DUMP OF SERVICE”关键字后面的单词都可以直接通过 dumpsys + 单词查看相关信息，具体每一个如何使用有一种通用的查看帮助的办法。

查看每一个命令的使用帮助，以下以meminfo 为例演示：

                      
shell@m:/ $ dumpsys meminfo -h 
dumpsys meminfo -h 
meminfo dump options: [-a] [--oom] [process] 
  
-a: include all available information 
for
each process. 
  
--oom: only show processes organized by oom adj. 
If [process] is specified it can be the name or 
pid of a specific process to dump.
       
     

三、一些关键命令解释

名字	功能
account	显示accounts信息
activity	显示所有的activities的信息
cpuinfo	显示CPU信息
window	显示键盘，窗口和它们的关系
wifi	显示wifi信息
batteryinfo $package_name	电量信息及CPU 使用时长
package packagename	获取安装包信息
usagestats	每个界面启动的时间
statusbar	显示状态栏相关的信息
meminfo	内存信息（meminfo $package_name or $pid 使用程序的包名或者进程id显示内存信息）
diskstats	磁盘相关信息
battery	电池信息
alarm	显示Alarm信息

activity -

window -

statusbar -

dumpsys statusbar | grep notification=Notification

也可以单独列出某个系统服务的，比如battery，命令：dumpsys battery，如果想知道具体可以做哪些操作可：dumpsys battery -h来查看，比如我们想设置电量百分比，可以

dumpsys battery set level 5。

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一、列出dumpsys所有支持命令

二、具体命令如何查看帮助

三、一些关键命令解释

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