adb 使用记录

九阳神功总纲

• 查看可以被 dump 的 service ： dumpsys | grep "DUMP OF SERVICE"
• dump service

  1 2	# 需要重写 Service#dump(FileDescriptor fd, PrintWriter writer, String[] args) 方法 dumpsys activity service package.name/.abs.YourService

• 系统应用新添加的Activity后跳转报错解决办法（比如Settings应用）： pm install -r system/priv-app/GsSettings/GsSettings.apk，触发pms重新解析一次apk即可
• logcat 模板 logcat | grep -i -E '(keyword_1|keyword_2)' --color=always
• logcat 带颜色输出 logcat -v color
• 如何查看Android 系统中 native 层的 Service
• logcat 过滤 pid logcat --pid=xxx -v color
• logcat 查看蓝牙协议栈的日志 logcat -v color time | grep -E "(bt_)"

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  $ getprop | grep init.svc init.svc.cameraserver: [running] init.svc.installd]: [running] init.svc.lighttpd]: [running] init.svc.logd-reinit]: [stopped] init.svc.servicemanager]: [running] init.svc.storaged]: [running] init.svc.vold]: [running] init.svc.wificond]: [running] init.svc.zygote]: [running] init.svc.zygote_secondary]: [running]

• 对应的java层定义在SystemServer中的 enum State

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  public enum State { RUNNING("running"), STOPPING("stopping"), STOPPED("stopped"), RESTARTING("restarting"); }

• 打开开发者模式中的【布局边界开关】

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  // 自己编译的镜像上可用，测试通过反射方式在三星 S8+ 设备上是无效的 // setprop debug.layout true/false private void updateLayoutBounds() { // show layout bound final boolean isEnabled = SystemProperties.getBoolean("debug.layout", false/*default*/); SystemProperties.set("debug.layout", Boolean.toString(!isEnabled)); SystemPropPoker.getInstance().poke(); }

• 系统空间达到阈值通知模拟

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  $ dumpsys devicestoragemonitor help Device storage monitor service (devicestoragemonitor) commands: help Print this help text. force-low [-f] Force storage to be low, freezing storage state. -f: force a storage change broadcast be sent, prints new sequence. force-not-low [-f] Force storage to not be low, freezing storage state. -f: force a storage change broadcast be sent, prints new sequence. reset [-f] Unfreeze storage state, returning to current real values. -f: force a storage change broadcast be sent, prints new sequence.

• 输入事件模拟：

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  # 模拟按键事件 [adb shell] input keyevent key_code (key_code 是KeyEvent.java里面的按键数值） # 模拟输入文本 [adb shell] input text 'string'

• 内存泄露检测

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  $ dumpsys cpuinfo/meminfo dumpsys meminfo com.example.app Objects Views: 1 ViewRootImpl: 0 AppContexts: 3 Activities: 0 Assets: 2 AssetManagers: 0 Local Binders: 6 Proxy Binders: 27 Parcel memory: 4 Parcel count: 16 Death Recipients: 2 OpenSSL Sockets: 0

• 卸载应用 [adb shell] pm uninstall package.name
• 发送广播

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  # 发送广播并携带数据 [adb shell ] am broadcast -a com.android.action.XXX string： --es key value --es k2 v2 ... int: --ei key value float: --ef key value long: --el key value bool: --ez key value

• 启动activity

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  # 通过指定包名和类来打开(原生设置主)页面 [adb shell] am start -n com.android.settings/.Settings {携带数据同广播} # 通过 action 打开页面 [adb shell] am start -a android.settings.APPLICATION_DEVELOPMENT_SETTINGS {携带数据同广播}

• 开启/停止服务

  1	[adb shell] am stop/startservice com.example.xxx/.MyService

• 清除数据 pm clear package.name
• 禁用组件 pm disable com.android.bluetooth
• dump 服务

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  $ dumpsys timezone_service Priority TimeZone: America/Atikokan Current TimeZone: America/Atikokan hasZoneInfo: true Last TimeZone: 2 Current offset: -18000000 $ dumpsys time_service priority: 0 0: NTP, 1: SIP, 2: LOCAL NTP this time of NTP Result: true once success NTP Result: true DHCP NTP Option: Main NTP Server: pool.ntp.org Second NTP: Android NTP: time.android.com, used: false Duration(s) to update: 86400

• 打开 WLAN 详细日志记录功能
  • 设置->开发者选项->网络->打开【启用WLAN详细日志记录功能】
• 打开某一个 tag 的日志
  • setprop log.tag.xxx VERBOSE/DEBUG/WARN/ERROR
  • 前提： public static final boolean D = Log.isLoggable(TAG, Log.VERBOSE);
  • 需要判断是否可以输出日志
  • 打开之后可能需要杀进程重启
• anr： Reason: Input dispatching timed out (Waiting to send key event because the focused window has not finished processing all of the input events that were previously delivered to it. Outbound queue length: 0. Wait queue length: 1.)
  • a、设备内存不足的现象：System is running low on memory、ActivityManager: Low on memory:
  • b、WebServer: call detail 有大量的日志被打印(vendor/grandstream/service/webserver/websocket/tcpserver.c:L531)
  • c、Binder线程池耗尽的日志 03-20 18:15:40.915 E/IPCThreadState( 516): binder thread pool (4 threads) starved for 878 ms
  • d、03-20 18:15:48.669 W/hw-IPCThreadState( 498): All binder threads in pool (4 threads) busy for 447 ms