登录查看更多内容

How do you troubleshoot common adb errors and issues when debugging mobile app?

由人工智能和领英社区提供技术支持

If you are a mobile tester, you probably use adb (Android Debug Bridge) to debug your mobile app on an emulator or a real device. Adb is a command-line tool that lets you communicate with your device, install and run apps, capture logs, and perform other tasks. However, adb can also cause some errors and issues that can disrupt your testing process. In this article, we will show you how to troubleshoot some common adb errors and issues, and how to fix them.

此文章中的业界达人

由社区从 5 条内容中精选。了解更多

Bruno Pimentel Pereira

Engenheiro de testes

1 Check your adb version

One of the first things you should do when you encounter an adb error or issue is to check your adb version. Adb is updated regularly, and sometimes new features or bug fixes require a newer version of adb. To check your adb version, open a terminal or command prompt and type

adb version

. You should see something like this:

Android Debug Bridge version 1.0.41
Version 31.0.3-7562133
Installed as C:\Users\user\AppData\Local\Android\Sdk\platform-tools\adb.exe

If your adb version is lower than the latest version, you should update it by downloading the latest platform-tools package from the Android SDK website, or by using the SDK Manager tool in Android Studio. Updating your adb version can solve some compatibility and connectivity issues.

添加您的观点

Bruno Pimentel Pereira

Engenheiro de testes
(已编辑)
举报内容
1) Tenha certeza de ter o SDK Platform Tools atualizado. 2) Finalize o ADB no prompt de comando com "adb kill-server" e certifique-se de que n?o há nenhum processo adb.exe rodando no Gerenciador de Tarefas. 3) Algumas marcas/modelos de aparelhos só permitem a depura??o USB através de determinados modos. Ao conectar o aparelho, tente utilizar os diferentes modos disponíveis (Somente carregar / Transferência de dados / Transferência de fotos / Input MIDI / etc). 4) Desconecte o aparelho, revogue todas as permiss?es de depura??o USB e reconecte o aparelho.

已翻译

赞

2 Restart your adb server

Another common adb error or issue is that your device is not detected by adb, or that adb shows multiple devices with the same serial number. This can happen if your adb server is not running properly, or if there is a conflict with another process or application that uses adb. To fix this, you can restart your adb server by typing these commands in your terminal or command prompt:

adb kill-server
adb start-server

This will stop and restart the adb server, and refresh the list of connected devices. You can then type

adb devices

to see if your device is recognized by adb. If not, you may need to reconnect your device, enable USB debugging, or check your USB cable or port.

添加您的观点

Piotr Wicherski

Expert Mobile Applications Quality Assurance Engineer | Mobile Apps QA Consultant
举报内容
Apart from restarting adb, remember to unplug your device from your workstation. You can also try turning off USB debugging in the device developer settings, and turning it on again after plugging the device again to your workstation. Settings > Developer options > USB debugging.

已翻译

赞

加载更多内容

3 Use adb logcat

One of the most useful adb commands for debugging your mobile app is adb logcat. This command lets you capture and view the system and app logs from your device, which can help you identify and troubleshoot errors, crashes, performance issues, and other problems. To use adb logcat, type

adb logcat

in your terminal or command prompt, and you will see a stream of log messages from your device. You can also filter the log messages by tag, priority, package name, or keyword, using various options and arguments. For example, you can type

adb logcat -s MyApp:V

to see only the verbose messages from your app with the tag MyApp. You can also redirect the log output to a file by typing

adb logcat > log.txt

添加您的观点

Piotr Wicherski

Expert Mobile Applications Quality Assurance Engineer | Mobile Apps QA Consultant
举报内容
Also, a useful command would be to gather whole devices bug reports using "adb bugreport". A bug report contains device logs, stack traces, and other diagnostic information to help you find and fix bugs in your app. To get bug report you need to first create it on a device. "adb bugreport" - create bug report on a device. "adb shell ls /bugreports/" - view all reports created on this device. "adb pull /bugreports/bugreport-foo-bar.xxx.YYYY-MM-DD-HH-MM-SS.zip" - pull the report from your device.

已翻译

赞

4 Use adb shell

Another powerful adb command for debugging your mobile app is adb shell. This command lets you access and execute commands on your device's shell, which is a Linux-based command-line interface. With adb shell, you can perform various tasks on your device, such as browsing files and directories, changing permissions, running scripts, installing and uninstalling apps, and more. To use adb shell, type

adb shell

in your terminal or command prompt, and you will enter the shell mode of your device. You can then type any shell command that is supported by your device's operating system. You can type

ls -l /data/data/com.myapp

to list the files and directories of your app's data folder. You can also run shell commands without entering the shell mode by typing

adb shell <command>

. For instance, you can type

adb shell dumpsys activity

to see information about the activity manager on your device.

添加您的观点

Piotr Wicherski

Expert Mobile Applications Quality Assurance Engineer | Mobile Apps QA Consultant
举报内容
Other useful adb shell commands during debugging are, for example: "adb shell monkey -p com.myAppPackage -v 10000 -s 100" "adb shell screencap -p /sdcard/screenshot.png" - create a screenshot. "adb shell screenrecord /sdcard/Recording.mp4" - create a device recording. "adb shell input keyevent 277 / 278 /279" - use OS Cut/Copy/Paste "adb shell input keyevent 64" - Open default browser

已翻译

赞

5 Use adb backup and restore

One more useful adb command for debugging your mobile app is adb backup and restore. This command lets you backup and restore the data of your app or your entire device, which can help you test different scenarios, recover from errors, or migrate data between devices. To use adb backup and restore, you need to enable USB debugging and backup on your device's settings. Then, type

adb backup -f backup.ab -apk com.myapp

in your terminal or command prompt, to backup the apk and data of your app with the package name com.myapp to a file named backup.ab. You can also backup multiple apps, or your entire device by using different options and arguments. To restore the backup, type

adb restore backup.ab

and follow the instructions on your device's screen.

添加您的观点

6 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?

添加您的观点

Mobile Testing

+ 关注

给文章评分

我们借助人工智能创建了此文章。您认为这篇文章怎么样？

很棒不太好

举报此文章

查看全部

How do you troubleshoot common adb errors and issues when debugging mobile app?

1

2

3

4

5

6

1 Check your adb version

2 Restart your adb server

3 Use adb logcat

4 Use adb shell

5 Use adb backup and restore

6 Here’s what else to consider

Mobile Testing

给文章评分

感谢您的反馈

更多Mobile Testing相关文章

更多相关阅读内容