composite-adb

### Composite ADB Tool Usage and Information The **composite ADB tool** is a utility designed to manage multiple Android devices or emulators simultaneously over the Android Debug Bridge (ADB). It allows developers to interact with several devices in parallel, streamlining testing and debugging processes. Below is an explanation of its usage and related technical details: #### Installation and Setup To use the composite ADB tool, ensure that ADB is installed on your system. The installation process depends on your operating system: - On **Windows**, download the appropriate Android Studio package including the Android SDK[^2]. Alternatively, you can install just the command-line tools. - On **Mac OS X** or **Linux**, follow similar steps by downloading the respective platform-specific binaries. Once ADB is installed, verify its functionality using the following command: ```bash adb version ``` #### Connecting Multiple Devices To connect multiple devices via ADB, ensure all devices are properly connected to your machine. Use the following command to list all connected devices: ```bash adb devices ``` This will display a list of devices and their corresponding serial numbers. If no devices appear, check USB connections or enable developer mode on the devices. #### Using Composite ADB Commands Composite ADB operations typically involve executing commands across multiple devices. Below are some common usages: 1. **Pushing Files to Multiple Devices** To push a file to all connected devices, iterate through each device's serial number: ```bash for SERIAL in $(adb devices | grep -v "List" | awk '{print $1}'); do adb -s $SERIAL push <local_file> <remote_path> done ``` 2. **Executing Shell Commands** Execute shell commands on all connected devices: ```bash for SERIAL in $(adb devices | grep -v "List" | awk '{print $1}'); do adb -s $SERIAL shell <command> done ``` 3. **Installing Applications** Install an APK on all connected devices: ```bash for SERIAL in $(adb devices | grep -v "List" | awk '{print $1}'); do adb -s $SERIAL install <apk_file> done ``` 4. **Capturing Logs** Capture logs from all devices simultaneously: ```bash for SERIAL in $(adb devices | grep -v "List" | awk '{print $1}'); do adb -s $SERIAL logcat > log_$SERIAL.txt & done ``` #### Debugging Input Events For debugging input events, refer to the `InputDeviceManager` implementation in the Android source code[^4]. This involves analyzing how input events are processed and managed at the hardware level. #### Testing Coverage When developing tools like composite ADB, it is essential to test them thoroughly. Use Go's testing framework to generate coverage reports and visualize them in a browser[^3]: ```bash go test -coverprofile=c.out && go tool cover -html=c.out ``` This ensures that the tool functions as expected across various scenarios. ---