adb shell dumpsys 命令

dumpsys简单介绍：该命令用户打印出当前系统信息，默认打印出所有service信息，可以在命令后面加入activity参数，只打印出activity相关的信息。

可跟参数有以下这些：

SurfaceFlinger, accessibility, account, activity, alarm, appwidget, audio, backup, battery, batteryinfo, bluetooth, bluetooth_a2dp, clipboard, connectivity, content, cpuinfo, device_policy, devicestoragemonitor, diskstats, dropbox, entropy, hardware, hdmi, input_method, iphonesubinfo, isms, location, media.audio_flinger, media.audio_policy, media.camera, media.player, meminfo, mount, netstat, network_management, notification, package, permission, phone, power, search, sensor, simphonebook, statusbar, telephony.registry, throttle, uimode, usagestats, vibrator, wallpaper, wifi, window

       在CMD下面输入以下命令：      

adb shell dumpsys activity
adb shell dumpsys activity>activity.txt	“>activity.txt”是使用管道将信息打印的activity.txt中，再使用文本编辑器打开帮助我们更好的搜索和分析。