Sending Broadcast Intent from ADB: A Comprehensive Guide

Sending Broadcast Intent from ADB: A Comprehensive Guide

30 November 2024 Stephan Petzl Leave a comment Tech-Help

Sending intents to a BroadcastReceiver from the Android Debug Bridge (ADB) can sometimes be challenging, especially when dealing with specific command-line syntax. This guide will walk you through the process of sending a broadcast intent correctly using ADB, ensuring your commands are executed without errors.

Understanding the Basics

When working with ADB, it’s crucial to understand that sending a broadcast intent requires using the broadcast command, rather than the start command, which is used for activities. The correct usage involves specifying the action and any extras you want to send with the intent.

Correct Command Syntax

To send a broadcast intent, you should use the following command syntax:

adb shell am broadcast -a com.whereismywifeserver.intent.TEST --es sms_body "test from adb"

Here, -a specifies the action, and --es specifies a string extra. This command sends an intent with the action com.whereismywifeserver.intent.TEST and an extra sms_body with the value "test from adb".

Handling Special Characters

One common issue is handling spaces or special characters in extras. If your extra string contains spaces, ensure to enclose it in quotes or use escape characters:

adb shell am broadcast -a com.whereismywifeserver.intent.TEST --es sms_body "test\ from\ adb"

This ensures the entire string is treated as a single extra value.

Additional Parameters and Considerations

ADB allows for various data types to be sent as extras. Here are some examples:

  • --ei: Send an integer extra
  • --ez: Send a boolean extra
  • --ef: Send a float extra

Ensure the data type matches what your BroadcastReceiver is expecting to avoid runtime errors.

Dealing with Android 8 and Above

For Android 8 and newer versions, there are restrictions on implicit broadcast receivers. To ensure compatibility, specify the package name at the end of the command:

adb shell am broadcast -a my.app.package.TEST my.app.package

Adjust the package name as necessary, especially in debug mode.

Enhancing Your Testing Process

For those looking to streamline their testing processes, consider utilizing Repeato, a no-code test automation tool for iOS and Android. With features that allow you to create, run, and maintain automated tests easily, Repeato can significantly enhance your testing efficiency.

Repeato also supports executing ADB commands through “script steps,” allowing precise control over the timing and sequence of ADB commands. This capability can be particularly useful when sending broadcast intents as part of your automated testing routine. For more on how Repeato can aid your testing, visit our documentation.

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