Foreword:
Write an article to briefly talk about adb.
text:
1. About adb.
adb, that is, Android Debug Bridge, that is, Android Debug Bridge.
adb is a C/S command line tool. It mainly consists of 3 parts:
- Client running on the PC side: Android applications can be installed, uninstalled and debugged through it. For example, adb.exe in AndroidStudio.
- Service running on the PC side: it manages the connection between the client and the adb background process on the Android device. After the adb service starts, Windows can find the adb.exe process in the task manager.
- The adb background process running on Android devices.
The default port number used by adb is: 5037. We can view the port number of adb through the adb command adb nodemon server.
Second, the adb command. Regarding adb commands, we can divide them into adb commands and adb shell commands.
adb command:
1. Obtain the device list and device status:
adb devices
2. Obtain the device status:
adb get-state (this can only be used when there is only one device currently)
3. Print the Android system log:
adb logcat >d:\test\logcat.log
4. Print the output of dumpsys, dumpstate, and logcat, which is also used to analyze the error output into the text:
adb bugreport >d:\test\bugreport.log
5. Use the adb command to view/display the application log directly on the terminal (console)
adb logcat AppLog:I *:S
Display all logs in the application whose log label is AppLog and whose log level is not lower than I on the terminal.
6. Install the application:
adb install apk full path
7. Uninstall the application:
adb uninstall application package name
8. Restart the Android device:
adb reboot
9. Perform adb debugging through tcpip:
adb connect ip:port
Disconnect:
adb disconnect
Let a port of the device be in the listening state:
adb tcpip port (you must first connect the device with a USB data cable)
......
adb shell command:
1. View the currently running Activity:
adb shell logcat | findstr ActivityManager
2. View all applications:
adb shell pm -l
3. View memory information:
adb shell dumpsys meminfo application package name
4. Press the main screen button to return to the desktop (return to the desktop)
adb shell input keyevent 3
5. Return to the previous interface (simulate the physical return key)
adb shell input keyevent 4
6. Kill the process
(1) Stop the APP process and clear all the data generated by the APP process, which is equivalent to reset
adb shell pm clear package
After executing the command, the output success means that the command is executed successfully, the app process is killed, and all
Data, which is equivalent to the effect of uninstalling and reinstalling, is generally not recommended.
(2) Forcibly stopping the APP process will not clear the data generated by the APP process in the system
adb shell am force-stop package
After executing this command, there is no output, and the corresponding process of the mobile phone has been killed.
7. View process
adb shell ps|findstr package
8. Hide virtual keys only
adb shell settings put global policy_control immersive.navigation=*
9. Restore virtual keys
adb shell settings put global policy_control null
10. Check the cpu processor architecture
adb shell getprop ro.product.cpu.abi
11. View the build.prop file of the system (the build.prop file contains a series of information such as the device model)
adb shell
After entering the shell, enter cat /system/build.prop
12. Exit the adb shell
exit
13. Transfer the files on the computer to the mobile phone through the adb shell
adb push the directory of the file on the computer the directory on the mobile phone
比如 adb push C:\Users\dell\Desktop\data /storage/emulated/0/xxx/xxx_xxxxxx/
14. Locate the directory and view the directory
adb shell
After entering the shell, enter the cd directory
For example cd /storage/emulated/0
cd xxx/xxx_xxxxxx/
Then enter ls (ls is used to print out the list of the current directory)
15. Display the full path of the current working directory
adb shell
After entering the shell, enter pwd
16. Copy the files on the phone to the computer
adb pull directory on the phone directory on the computer
17. Take a screenshot and export it to the computer
Screenshot: adb shell screencap /sdcard/1.png (Note: You need to ensure that you have write permission to the folder before executing this command)
Export: adb pull directory on the device directory on the computer (for example: adb pull /sdcard/1.png E:\charts)
18. Delete files
adb shell rm /sdcard/1.png (delete the file named 1.png in the root directory of sdcard)
adb shell rm /sdcard/*.png (delete all files with the suffix .png in the root directory of the sdcard)
19. View the package name and Activity of the currently running application
adb shell dumpsys window w |findstr \/ |findstr name=
20. View the width and height of the device
adb shell wm size
21. Check the window of the device to display relevant information
adb shell dumpsys window displays
22. View device cpu information
First enter the adb shell,
Then execute cat /proc/cpuinfo
23. View detailed memory information
First enter the adb shell,
Then execute cat /proc/meminfo
24. View folder size
First enter the adb shell, and go to the corresponding folder,
Then execute du -sh
Among them, -s the parameter means to display the total size, and -h the parameter means to display the size in human-readable form.
25. View the number of files
First enter the adb shell,
Then execute adb shell ls -l /path/directory | wc -l
/path/directory is the path to the folder to view.
This command displays the number of files contained in the current directory.
......