Android adb do you really want to use it?

Objective

This article is based on the official Android documentation, as well as the use of personal work experience, summed up the common use of the ADB, memo.

1.ADB Introduction

ADB full name Andorid Debug Bridge. As the name implies, this is a debug tool.

But why is it called bridge? Because ADB is a standard CS structure tool, it is to connect the development computer and your debug phone. Contains the following sections:

• The client side, which runs on the development machine, your development PC, is used to send ADB commands.
• The Deamon daemon, which runs on the debug device, is the debug phone or emulator.
• Server side, as a background process runs in the development machine, i.e. your development PC, used to manage communication between the client side of the PC and the deamon of the phone.

2. Common usage

2.1 ADB devices

Enumerate the currently connected debug devices

2.2 ADB Logcat

Print log information

Instructions	Description	Note
ADB logcat	Print Log	/
ADB logcat-c	Clear the phone's log buffer	Some mobile rights control, do not support
ADB logcat-b<buffer>	Print log information for specified buffer	Buffer has: Main (main log area, default), Events (event-related log), Radio (RF, telephony related log)
ADB logcat-v<format>	Formatted output log	Common use of ADB logcat-v time display
ADB logcat-f<filename>	Output log to the specified file	/

2.3 adb Shell CD data/data/ - LS

Get all App package names

2.4 adb Install/uninstall

Ann Loading APK

2.5 adb Pull/push

Copy files between the debug device and the development PC

// 拷贝本地文件到调试设备中

// 拷贝本地文件到调试设备中

2.6 adb Start/kill Server

Start/Kill the server-side process mentioned in the ADB profile.

Because the ADB is not stable, sometimes inexplicable problems fall off the line, you can first Kill-server, and then start-server to ensure that the server process starts. can often solve problems.

3. Higher-Order Usage

3.1 adb Connect/disconnect

Remotely connect to the phone via WiFi for debugging.
Https://developer.android.com/studio/command-line/adb.html#wireless

To start the remote debugging mode, connect the USB mode first:
$ adb tcpip 5555

3.2 adb shell AM

AM is activity Manager.
This command is used to perform some system actions, such as starting a specified activity, ending a process, sending a broadcast, changing screen properties, and so on. Debugging tool.

instruction	Description	Notes
start <intent>	to start activity according to Intent	Intent can be a display point to activity or action mode. And can add flag, data and other parameter information.
startservice <intent>	start service	to add parameter information such as flag, data, and so on.
broadcast <intent>	send broadcast	You can add parameter information such as flag, data, and so on.
Monitor	start a crash and ANR listener	If you have crash or ANR, the information will be output from the console.
force-stop <package>	Force stop all relevant	incoming package name.
kill <package>	kill all processes related to the package	incoming packages name.
kill-all	kill all background processes
display-size WxH	Change the displayed Resolution	For example, adb shell am display-size 1280x720, the phone may not be supported.
display-density <dpi>	Change the displayed density	For example ADB shell am display-density 320, the phone may not Support.

3.3 adb shell PM

PM is the package Manager.
Used to perform package-related operations, such as loading and unloading, querying system installation packages, etc.

instruction	Description	Notes
List Packages <Filter>	List all packages that meet the filter criteria
List Permissions <Group>	List all permissions for this group
List features	See which feature the system supports	such as Bluetooth, WiFi, camera and so on.
Install <path>/uninstall <Package>	Safety Loading and unloading
Clear <Package>	Clear App Data

3.4 adb Shell Screencap

Screenshot, more convenient and faster than the screenshot shortcut keys.

3.5 adb shell Screenrecord

Recording screen, do the demo, you can easily use this name to record the video, and then use the tool to convert it into a gif, awesome. As follows:

Android4.4 and above systems are available.

3.6 adb Shell Dumpsys

Powerful dump tool that can output a lot of system information. such as window, activity, task/back stack information, wifi information, etc.

Explore the launchmode of activity and explore the start of activity intent flag and affinity are used to export task information using the ADB shell dumpsys activity.

Common Dumpsys:

instruction	Description	Notes	Subdivision Parameters
Activity	Output app component related information	You can also use the subdivision parameters to obtain a single content, the same. For example, the ADB shell dumpsys activity activities to get activity task/back stack information.	Activites, service, providers, intents, broadcasts, processes
Alarm	Output alarm information for the current system	/	/
Cpuinfo	Output Current CPU Usage	/	/
Diskstats	Output the current disk usage status	/	/
Batterystats	Battery usage information	/	/
Package	Package-related information, equivalent to a collection of PM functions	Output information such as Libs, features, packages, etc.	/
Meminfo	Output memory usage and system memory status for each app	You can specify the package name, such as adb shell Dumpsys meminfo Com.anly.githubapp	/
Window	Output current Window related information	/	Policy, animator, tokens, windows

Android adb do you really want to use it?