github.com/vanadium-archive/madb
Multi-device Android Debug Bridge The madb command wraps Android Debug Bridge (adb) command line tool and provides various features for controlling multiple Android devices concurrently. Usage: The madb commands are: The madb flags are: The global flags are: Clears your app data from all devices. To specify which user's data should be cleared, use 'madb user set' command to set the default user ID for that device. (See 'madb help user' for more details.) Usage: <application_id> is usually the package name where the activities are defined. (See: http://tools.android.com/tech-docs/new-build-system/applicationid-vs-packagename) If the application ID is not specified, madb automatically determines which app to be cleared, based on the build scripts found in the current working directory. If the working directory contains a Gradle Android project (i.e., has "build.gradle"), run a small Gradle script to extract the application ID. In this case, the extracted ID is cached, so that "madb clear-data" can be repeated without even running the Gradle script again. The ID can be re-extracted by clearing the cache by providing "-clear-cache" flag. The madb clear-data flags are: Runs the provided adb command on all devices and emulators concurrently. For example, the following line: copies the ./foo.txt file to /sdcard/foo.txt for all the currently connected devices. There are a few pre-defined keywords that can be expanded within an argument. For example, the following line: copies the ./Alice.txt file to the device named Alice, and ./Bob.txt to the device named Bob. Note that you should type in "{{name}}" as-is, with the opening/closing curly braces, similar to when you're using a template library such as mustache. To see the list of available adb commands, type 'adb help'. Usage: <command> is a normal adb command, which will be executed on all devices and emulators. The madb exec flags are: Runs the provided external command for all devices and emulators concurrently. For each available device, this command will spawn a sub-shell with the ANDROID_SERIAL environmental variable set to the target device serial, and then will run the provided external command. There are a few pre-defined keywords that can be expanded within an argument. For example, the following line: prints out the name and serial pairs for each device. Note that you should type in "{{name}}" as-is, with the opening/closing curly braces, similar to when you're using a template library such as mustache. This command is intended to be used with external commands that are designed to work with only a single device at a time (e.g. gomobile, flutter). Usage: <external_command> is an external shell command to run for all devices and emulators. The madb extern flags are: Manages device groups, each of which can have one or more device members. The device groups can be used for specifying the target devices of other madb commands. Usage: The madb group commands are: Adds members to a device group. This command also creates the group, if the group does not exist yet. The device group can be used when specifying devices in any madb commands. When creating a new device group with this command, the provided name must not conflict with an existing device nickname (see: madb help name set). A group can contain another device group, in which case all the members of the other group will also be considered as members of the current group. Usage: <group_name> is an alpha-numeric string with no special characters or spaces. This name must not be an existing device nickname. <member> is a member specifier, which can be one of device serial, qualifier, device index (e.g., '@1', '@2'), device nickname, or another device group. Clears all the existing device groups. Usage: Deletes an existing device group. Usage: <group_name> the name of an existing device group. You can specify more than one group names. Lists the name and members of all the existing device groups. Usage: Removes members from an existing device group. If there are no remaining members after that, the group gets deleted. Usage: <group_name> is an alpha-numeric string with no special characters or spaces. This name must be an existing device group name. <member> is a member specifier, which can be one of device serial, qualifier, device index (e.g., '@1', '@2'), device nickname, or another device group. Renames an existing device group. Usage: <old_name> is the name of an existing device group. <new_name> is the new name for the existing group. This must be an alpha-numeric string with no special characters or spaces, and must not conflict with another existing device or group name. Installs your app on all devices. If the working directory contains a Gradle Android project (i.e., has "build.gradle"), this command will first run a small Gradle script to extract the variant properties, which will be used to find the best matching .apk for each device. These extracted properties are cached, and "madb install" can be repeated without running this Gradle script again. The properties can be re-extracted by clearing the cache by providing "-clear-cache" flag. Once the variant properties are extracted, the best matching .apk for each device will be installed in parallel. This command is similar to running "gradlew :<moduleName>:<variantName>Install", but "madb install" is more flexible: 1) you can install the app to a subset of the devices, and 2) the app is installed concurrently, which saves a lot of time. If the working directory contains a Flutter project (i.e., has "flutter.yaml"), this command will run "flutter install --device-id <device serial>" for all devices. To install your app for a specific user on a particular device, use 'madb user set' command to set the default user ID for that device. (See 'madb help user' for more details.) To install a specific .apk file to all devices, use "madb exec install <path_to_apk>" instead. Usage: The madb install flags are: Manages device nicknames, which are meant to be more human-friendly compared to the device serials provided by adb tool. Usage: The madb name commands are: Sets a human-friendly nickname that can be used when specifying the device in any madb commands. The device serial can be obtained using the 'adb devices -l' command. For example, consider the following example output: The first value, 'HT4BVWV00023', is the device serial. To assign a nickname for this device, run the following command: and it will assign the 'MyTablet' nickname to the device serial 'HT4BVWV00023'. The alternative device specifiers (e.g., 'usb:3-3.4.2', 'product:volantisg') can also have nicknames. When a nickname is set for a device serial, the nickname can be used to specify the device within madb commands. There can only be one nickname for a device serial. When the 'madb name set' command is invoked with a device serial with an already assigned nickname, the old one will be replaced with the newly provided one. Usage: <device_serial> is a device serial (e.g., 'HT4BVWV00023') or an alternative device qualifier (e.g., 'usb:3-3.4.2') obtained from 'adb devices -l' command <nickname> is an alpha-numeric string with no special characters or spaces. Unsets a nickname assigned by the 'madb name set' command. Either the device serial or the assigned nickname can be specified to remove the mapping. Usage: There should be only one argument, which is either the device serial or the nickname. Lists all the currently stored nicknames of device serials. Usage: Clears all the currently stored nicknames of device serials. Usage: Resolves the provided device specifiers and prints out their device serials, each in a separate line. This command only displays the unique serials of the devices that are currently available. This command can be useful when you want to use the device nicknames and groups defined by madb in other command line tools. For example, to run a flutter app on "MyTablet" device, you can use the following command (in Bash): Usage: <specifier> can be anything that is accepted in the '-n' flag (see 'madb help'). It can be a device serial, qualifier, index, nickname, or a device group name. Runs the provided adb shell command on all devices and emulators concurrently. This command is a shorthand syntax for 'madb exec shell <command...>'. See 'madb help exec' for more details. Usage: <command> is a normal adb shell command, which will be executed on all devices and emulators. The madb shell flags are: Launches your app on all devices. In most cases, running "madb start" from an Android Gradle project directory will do the right thing for you. "madb start" will build the project first. After the project build is completed, this command will install the best matching .apk for each device, only if one or more of the following conditions are met: If you would like to run the same version of the app repeatedly (e.g., for QA testing), you can explicitly turn off the build flag by providing "-build=false" to skip the build step. To run your app as a specific user on a particular device, use 'madb user set' command to set the default user ID for that device. (See 'madb help user' for more details.) Usage: <application_id> is usually the package name where the activities are defined. (See: http://tools.android.com/tech-docs/new-build-system/applicationid-vs-packagename) <activity_name> is the Java class name for the activity you want to launch. If the package name of the activity is different from the application ID, the activity name must be a fully-qualified name (e.g., com.yourcompany.yourapp.MainActivity). If either <application_id> or <activity_name> is provided, the other must be provided as well. If no arguments are specified, madb automatically determines which app to launch, based on the build scripts found in the current working directory. 1) If the working directory contains a Flutter project (i.e., has "flutter.yaml"), this command will run "flutter start --device-id <device serial>" for all the specified devices. 2) If the working directory contains a Gradle Android project (i.e., has "build.gradle"), this command will run a small Gradle script to extract the application ID and the main activity name. In this case, the extracted IDs are cached, so that "madb start" can be repeated without even running the Gradle script again. The IDs can be re-extracted by clearing the cache by providing "-clear-cache" flag. The madb start flags are: Stops your app on all devices. To stop your app for a specific user on a particular device, use 'madb user set' command to set the default user ID for that device. (See 'madb help user' for more details.) Usage: <application_id> is usually the package name where the activities are defined. (See: http://tools.android.com/tech-docs/new-build-system/applicationid-vs-packagename) If the application ID is not specified, madb automatically determines which app to stop, based on the build scripts found in the current working directory. 1) If the working directory contains a Flutter project (i.e., has "flutter.yaml"), this command will run "flutter stop --device-id <device serial>" for all the specified devices. 2) If the working directory contains a Gradle Android project (i.e., has "build.gradle"), run a small Gradle script to extract the application ID. In this case, the extracted ID is cached, so that "madb stop" can be repeated without even running the Gradle script again. The ID can be re-extracted by clearing the cache by providing "-clear-cache" flag. The madb stop flags are: Uninstall your app from all devices. To uninstall your app for a specific user on a particular device, use 'madb user set' command to set the default user ID for that device. (See 'madb help user' for more details.) Usage: <application_id> is usually the package name where the activities are defined. (See: http://tools.android.com/tech-docs/new-build-system/applicationid-vs-packagename) If the application_id is not specified, madb automatically determines which app to uninstall, based on the build scripts found in the current working directory. If the working directory contains a Gradle Android project (i.e., has "build.gradle"), run a small Gradle script to extract the application ID. In this case, the extracted ID is cached, so that "madb uninstall" can be repeated without even running the Gradle script again. The ID can be re-extracted by clearing the cache by providing "-clear-cache" flag. The madb uninstall flags are: Manages default user settings for each device. An Android device can have multiple user accounts, and each user account has a numeric ID associated with it. Certain adb commands accept '--user <user_id>' as a parameter to allow specifying which of the Android user account should be used when running the command. The default behavior when the user ID is not provided varies by the adb command being run. Some madb commands internally run these adb commands which accept the '--user' flag. You can let madb use different user IDs for different devices by storing the default user ID for each device using 'madb user set' command. If the default user ID is not set for a particular device, madb will not provide the '--user' flag to the underlying adb command, and the current user will be used for that device as a result. Below is the list of madb commands which are affected by the default user ID settings: For more details on how to obtain the user ID from an Android device, see 'madb user help set'. Usage: The madb user commands are: Sets a default user ID to be used for the specified device, when there are multiple user accounts on a single device. The user IDs can be obtained using the 'adb [<device_serial>] shell pm list users' command. Alternatively, you can use 'madb exec' if you want to specify the device with a nickname. For example, running the following command: will list the available users and their IDs on the MyPhone device. Consider the following example output: There are two available users, "John Doe" and "Work profile". Each user is assigned a "user ID", which appears on the left of the user name. In this case, the user ID of "John Doe" is "0", and the user ID of the "Work profile" is "10". To use the "Work profile" as the default user when running madb commands on this device, run the following command: and then madb will use "Work profile" as the default user for device "MyPhone" in any of the subsequence madb commands. Usage: <device_serial> is the unique serial number for the device, which can be obtained from 'adb devices'. <user_id> is one of the user IDs obtained from 'adb shell pm list users' command. Unsets the default user ID assigned by the 'madb user set' command for the specified device. Running this command without any device specifiers will unset the default users only for the currently available devices and emulators, while keeping the default user IDs for the other devices. Usage: <device_serial> is the unique serial number for the device, which can be obtained from 'adb devices'. Lists all the currently stored default user IDs for devices. Usage: Clears all the currently stored default user IDs for devices. This command clears the default user IDs regardless of whether the device is currently connected or not. Usage: Prints the madb version number to the console. If this version of madb binary is an official release, this command will show the version number. Otherwise, the version will be in the form of "<version>-develop", where the version indicates the most recent stable release version prior to this version of madb binary. Usage: Help with no args displays the usage of the parent command. Help with args displays the usage of the specified sub-command or help topic. "help ..." recursively displays help for all commands and topics. Usage: [command/topic ...] optionally identifies a specific sub-command or help topic. The madb help flags are:
Readme
[![Build Status][travis-image]][travis-link]
Madb is a command line tool that wraps Android Debug Bridge (adb) and provides various features for controlling multiple Android devices concurrently. This slide deck illustrates how madb works with multiple devices.
This tool is part of the Vanadium effort to build a framework and a set of development tools to enable and ease the creation of multi-device user interfaces and apps.
Madb releases are versioned according to Semantic Versioning 2.0.0.
PATH. ADB comes with the Android SDK.On Mac OS X, madb can be installed using Homebrew.
$ brew tap baku-io/baku
$ brew install madb
To upgrade madb to the most recent version,
$ brew update
$ brew upgrade madb
The latest release of madb can be downloaded from the
Releases Page.
Download the binary for your platform, and extract it to your desired location.
Make sure to add the location in your PATH environment variable to use madb
from anywhere.
If you have Go command line tool installed, you can also use the go get
command to get the most recent version of madb:
$ go get github.com/vanadium/madb
This will install the tool under <your GOPATH>/bin/madb. To upgrade the tool
to the most recent version:
$ go get -u github.com/vanadium/madb
NOTE: go get will always get the latest development version (i.e. the
current version in the master branch), not the stable release.
This section introduces the most notable features of madb. To see the complete
list of features and their options, please use madb help or
madb help <topic> in your command line, or refer to our
Online Documentation.
Also, please refer to this slide deck, which illustrates how madb works with multiple devices.
If your have an Android application project using the
Android plugin for Gradle
as the build system (see if you have build.gradle file in your project
directory), you can type the following command from the project directory to
build, install, and launch your app on all connected devices in parallel:
[From the project directory]
$ madb start
Compare this with the following equivalent adb command:
[For each device]
$ adb -s <device_serial> shell am start -n <app ID>/<activity name>
...
The madb start command is more convenient in a few major ways.
First, with a single madb start command, it launches the app on all devices
and emulators. With only adb, you would have to manually issue the same
command with different device serials, or use a loop construct in a shell
script to get the same behavior, for example.
Next, madb start does not require any additional parameters. Internally,
madb reads the Gradle build scripts and the AndroidManifest.xml files in
the current directory, and automatically extracts the application ID and main
activity name to install and launch the correct app on all devices.
In case your build script contains some
APK split
configurations, madb will install the best matching APK for each device,
depending on the device supported ABIs and the screen density.
Also, the adb console outputs from each device is prefixed with the name of
the device, line by line. The following example output from madb start
demonstrates this.
[MyTablet] 7404 KB/s (21315847 bytes in 2.811s)
[MyTablet] pkg: /data/local/tmp/app-universal-debug.apk
[MyPhone] 6270 KB/s (21315847 bytes in 3.319s)
[MyPhone] pkg: /data/local/tmp/app-universal-debug.apk
[MyPhone] Success
[MyPhone] Stopping: com.yourcompany.yourapp
[MyPhone] Starting: Intent { cmp=com.yourcompany.yourapp/.YourMainActivity }
[MyTablet] Success
[MyTablet] Stopping: com.yourcompany.yourapp
[MyTablet] Starting: Intent { cmp=com.yourcompany.yourapp/.YourMainActivity }
$ _
Here, the names MyPhone and MyTablet are the device nicknames given using
madb name command. If these nicknames are not set, madb will show the
corresponding device serial number instead. When something goes wrong with one
of the devices, then you can see which of the available devices generated the
error by reading the prefixed device name.
If you want to skip the build step and just restart the app on all devices, you
can use the -build=false flag:
$ madb start -build=false
You can execute any adb commands on all devices in parallel using madb exec
command. For example, imagine you want to see the current time from all devices
to determine if there clocks are significantly skewed. You can use the following
madb command to check this:
$ madb exec shell date
[MyTablet] Fri Apr 15 14:08:07 PDT 2016
[MyPhone] Fri Apr 15 14:08:03 PDT 2016
$ _
As a special case, madb exec shell <args...> command can be shortened as
madb shell <args...>. Therefore, the above command can be shortened as:
$ madb shell date
NOTE: Launching an interactive shell (i.e. adb shell without arguments) on
all devices is not supported, and the behavior of madb exec shell or
madb shell without any arguments is undefined. Always provide a specific shell
command to execute.
If you want to copy a configuration file on your local computer to all devices,
you can use madb exec to issue adb push command on all devices as following:
$ madb exec push your.config /sdcard/
[MyTablet] 92 KB/s (4087 bytes in 0.043s)
[MyPhone] 87 KB/s (4087 bytes in 0.045s)
$ _
Also, you can see the live interleaving logcat messages coming from all devices by:
$ madb exec logcat
As shown in the above examples, you can give human-friendly nicknames to your
devices. Once you give a nickname to a device, that nickname is used as the
console output prefix instead of its device serial number. To give a nickname,
you can use madb name set command.
$ madb name set <device_serial> <nickname>
You can see the serial numbers of your devices with adb devices -l command.
$ adb devices -l
List of devices attached
01023f5e2fd2acab device usb:3-5.3 product:bullhead model:Nexus_5X device:bullhead
HT4BVWV00000 device usb:3-5.4.2 product:volantisg model:Nexus_9 device:flounder_lte
$ _
In this output, 01023f5e2fd2acab and HT4BVWV00000 are the device serials.
To give MyPhone as the nickname of the Nexus 5X phone with serial
01023f5e2fd2acab,
$ madb name set 01023f5e2fd2acab MyPhone
Similarly, you can give MyTablet as the nickname of the second device.
$ madb name set HT4BVWV00000 MyTablet
To unset a given nickname, you can use madb name unset.
$ madb name unset <device serial OR nickname>
For the purpose of displaying the nicknames as the console output prefixes, the mapping between device serials and nicknames is kept 1:1. That is, there can be only one nickname for any given device serial, and a nickname always resolves to a single device serial.
There can be situations where a certain adb command should be run only on a
subset of all available devices. madb provides a few flags for these
situations.
-d: Restrict the command to only run on real devices.-e: Restrict the command to only run on emulators.-n=<device1,device2,...>: Comma-separated device serials, qualifiers,
device indices (e.g., @1, @2), or nicknames (set by madb name). Command
will run only on specified devices.For example, to launch your app only on emulators:
$ madb -e start
To see the logcat messages from Alice and Bob devices and not from others:
$ madb -n=Alice,Bob exec logcat
There are a few pre-defined keywords that can be expanded within an argument of
madb exec command.
{{index}}: the index of the current device, starting from 1.{{name}}: the nickname of the current device, or the serial number if a
nickname is not set.{{serial}}: the serial number of the current device.Suppose there are three named devices: Alice, Bob, and Carol.
You might want to push some configuration files that are slightly different for
each device before running your app. For example, you can:
Alice.config file to /sdcard/yourapp.config on device AliceBob.config file to /sdcard/yourapp.config on device BobCarol.config file to /sdcard/yourapp.config on device Carolwith the following one-line madb command.
$ madb exec push {{name}}.config /sdcard/yourapp.config
[travis-image]: https://img.shields.io/travis/vanadium/madb/master.svg?style=flat-square) [travis-link]: https://travis-ci.org/vanadium/madb
FAQs
Multi-device Android Debug Bridge The madb command wraps Android Debug Bridge (adb) command line tool and provides various features for controlling multiple Android devices concurrently. Usage: The madb commands are: The madb flags are: The global flags are: Clears your app data from all devices. To specify which user's data should be cleared, use 'madb user set' command to set the default user ID for that device. (See 'madb help user' for more details.) Usage: <application_id> is usually the package name where the activities are defined. (See: http://tools.android.com/tech-docs/new-build-system/applicationid-vs-packagename) If the application ID is not specified, madb automatically determines which app to be cleared, based on the build scripts found in the current working directory. If the working directory contains a Gradle Android project (i.e., has "build.gradle"), run a small Gradle script to extract the application ID. In this case, the extracted ID is cached, so that "madb clear-data" can be repeated without even running the Gradle script again. The ID can be re-extracted by clearing the cache by providing "-clear-cache" flag. The madb clear-data flags are: Runs the provided adb command on all devices and emulators concurrently. For example, the following line: copies the ./foo.txt file to /sdcard/foo.txt for all the currently connected devices. There are a few pre-defined keywords that can be expanded within an argument. For example, the following line: copies the ./Alice.txt file to the device named Alice, and ./Bob.txt to the device named Bob. Note that you should type in "{{name}}" as-is, with the opening/closing curly braces, similar to when you're using a template library such as mustache. To see the list of available adb commands, type 'adb help'. Usage: <command> is a normal adb command, which will be executed on all devices and emulators. The madb exec flags are: Runs the provided external command for all devices and emulators concurrently. For each available device, this command will spawn a sub-shell with the ANDROID_SERIAL environmental variable set to the target device serial, and then will run the provided external command. There are a few pre-defined keywords that can be expanded within an argument. For example, the following line: prints out the name and serial pairs for each device. Note that you should type in "{{name}}" as-is, with the opening/closing curly braces, similar to when you're using a template library such as mustache. This command is intended to be used with external commands that are designed to work with only a single device at a time (e.g. gomobile, flutter). Usage: <external_command> is an external shell command to run for all devices and emulators. The madb extern flags are: Manages device groups, each of which can have one or more device members. The device groups can be used for specifying the target devices of other madb commands. Usage: The madb group commands are: Adds members to a device group. This command also creates the group, if the group does not exist yet. The device group can be used when specifying devices in any madb commands. When creating a new device group with this command, the provided name must not conflict with an existing device nickname (see: madb help name set). A group can contain another device group, in which case all the members of the other group will also be considered as members of the current group. Usage: <group_name> is an alpha-numeric string with no special characters or spaces. This name must not be an existing device nickname. <member> is a member specifier, which can be one of device serial, qualifier, device index (e.g., '@1', '@2'), device nickname, or another device group. Clears all the existing device groups. Usage: Deletes an existing device group. Usage: <group_name> the name of an existing device group. You can specify more than one group names. Lists the name and members of all the existing device groups. Usage: Removes members from an existing device group. If there are no remaining members after that, the group gets deleted. Usage: <group_name> is an alpha-numeric string with no special characters or spaces. This name must be an existing device group name. <member> is a member specifier, which can be one of device serial, qualifier, device index (e.g., '@1', '@2'), device nickname, or another device group. Renames an existing device group. Usage: <old_name> is the name of an existing device group. <new_name> is the new name for the existing group. This must be an alpha-numeric string with no special characters or spaces, and must not conflict with another existing device or group name. Installs your app on all devices. If the working directory contains a Gradle Android project (i.e., has "build.gradle"), this command will first run a small Gradle script to extract the variant properties, which will be used to find the best matching .apk for each device. These extracted properties are cached, and "madb install" can be repeated without running this Gradle script again. The properties can be re-extracted by clearing the cache by providing "-clear-cache" flag. Once the variant properties are extracted, the best matching .apk for each device will be installed in parallel. This command is similar to running "gradlew :<moduleName>:<variantName>Install", but "madb install" is more flexible: 1) you can install the app to a subset of the devices, and 2) the app is installed concurrently, which saves a lot of time. If the working directory contains a Flutter project (i.e., has "flutter.yaml"), this command will run "flutter install --device-id <device serial>" for all devices. To install your app for a specific user on a particular device, use 'madb user set' command to set the default user ID for that device. (See 'madb help user' for more details.) To install a specific .apk file to all devices, use "madb exec install <path_to_apk>" instead. Usage: The madb install flags are: Manages device nicknames, which are meant to be more human-friendly compared to the device serials provided by adb tool. Usage: The madb name commands are: Sets a human-friendly nickname that can be used when specifying the device in any madb commands. The device serial can be obtained using the 'adb devices -l' command. For example, consider the following example output: The first value, 'HT4BVWV00023', is the device serial. To assign a nickname for this device, run the following command: and it will assign the 'MyTablet' nickname to the device serial 'HT4BVWV00023'. The alternative device specifiers (e.g., 'usb:3-3.4.2', 'product:volantisg') can also have nicknames. When a nickname is set for a device serial, the nickname can be used to specify the device within madb commands. There can only be one nickname for a device serial. When the 'madb name set' command is invoked with a device serial with an already assigned nickname, the old one will be replaced with the newly provided one. Usage: <device_serial> is a device serial (e.g., 'HT4BVWV00023') or an alternative device qualifier (e.g., 'usb:3-3.4.2') obtained from 'adb devices -l' command <nickname> is an alpha-numeric string with no special characters or spaces. Unsets a nickname assigned by the 'madb name set' command. Either the device serial or the assigned nickname can be specified to remove the mapping. Usage: There should be only one argument, which is either the device serial or the nickname. Lists all the currently stored nicknames of device serials. Usage: Clears all the currently stored nicknames of device serials. Usage: Resolves the provided device specifiers and prints out their device serials, each in a separate line. This command only displays the unique serials of the devices that are currently available. This command can be useful when you want to use the device nicknames and groups defined by madb in other command line tools. For example, to run a flutter app on "MyTablet" device, you can use the following command (in Bash): Usage: <specifier> can be anything that is accepted in the '-n' flag (see 'madb help'). It can be a device serial, qualifier, index, nickname, or a device group name. Runs the provided adb shell command on all devices and emulators concurrently. This command is a shorthand syntax for 'madb exec shell <command...>'. See 'madb help exec' for more details. Usage: <command> is a normal adb shell command, which will be executed on all devices and emulators. The madb shell flags are: Launches your app on all devices. In most cases, running "madb start" from an Android Gradle project directory will do the right thing for you. "madb start" will build the project first. After the project build is completed, this command will install the best matching .apk for each device, only if one or more of the following conditions are met: If you would like to run the same version of the app repeatedly (e.g., for QA testing), you can explicitly turn off the build flag by providing "-build=false" to skip the build step. To run your app as a specific user on a particular device, use 'madb user set' command to set the default user ID for that device. (See 'madb help user' for more details.) Usage: <application_id> is usually the package name where the activities are defined. (See: http://tools.android.com/tech-docs/new-build-system/applicationid-vs-packagename) <activity_name> is the Java class name for the activity you want to launch. If the package name of the activity is different from the application ID, the activity name must be a fully-qualified name (e.g., com.yourcompany.yourapp.MainActivity). If either <application_id> or <activity_name> is provided, the other must be provided as well. If no arguments are specified, madb automatically determines which app to launch, based on the build scripts found in the current working directory. 1) If the working directory contains a Flutter project (i.e., has "flutter.yaml"), this command will run "flutter start --device-id <device serial>" for all the specified devices. 2) If the working directory contains a Gradle Android project (i.e., has "build.gradle"), this command will run a small Gradle script to extract the application ID and the main activity name. In this case, the extracted IDs are cached, so that "madb start" can be repeated without even running the Gradle script again. The IDs can be re-extracted by clearing the cache by providing "-clear-cache" flag. The madb start flags are: Stops your app on all devices. To stop your app for a specific user on a particular device, use 'madb user set' command to set the default user ID for that device. (See 'madb help user' for more details.) Usage: <application_id> is usually the package name where the activities are defined. (See: http://tools.android.com/tech-docs/new-build-system/applicationid-vs-packagename) If the application ID is not specified, madb automatically determines which app to stop, based on the build scripts found in the current working directory. 1) If the working directory contains a Flutter project (i.e., has "flutter.yaml"), this command will run "flutter stop --device-id <device serial>" for all the specified devices. 2) If the working directory contains a Gradle Android project (i.e., has "build.gradle"), run a small Gradle script to extract the application ID. In this case, the extracted ID is cached, so that "madb stop" can be repeated without even running the Gradle script again. The ID can be re-extracted by clearing the cache by providing "-clear-cache" flag. The madb stop flags are: Uninstall your app from all devices. To uninstall your app for a specific user on a particular device, use 'madb user set' command to set the default user ID for that device. (See 'madb help user' for more details.) Usage: <application_id> is usually the package name where the activities are defined. (See: http://tools.android.com/tech-docs/new-build-system/applicationid-vs-packagename) If the application_id is not specified, madb automatically determines which app to uninstall, based on the build scripts found in the current working directory. If the working directory contains a Gradle Android project (i.e., has "build.gradle"), run a small Gradle script to extract the application ID. In this case, the extracted ID is cached, so that "madb uninstall" can be repeated without even running the Gradle script again. The ID can be re-extracted by clearing the cache by providing "-clear-cache" flag. The madb uninstall flags are: Manages default user settings for each device. An Android device can have multiple user accounts, and each user account has a numeric ID associated with it. Certain adb commands accept '--user <user_id>' as a parameter to allow specifying which of the Android user account should be used when running the command. The default behavior when the user ID is not provided varies by the adb command being run. Some madb commands internally run these adb commands which accept the '--user' flag. You can let madb use different user IDs for different devices by storing the default user ID for each device using 'madb user set' command. If the default user ID is not set for a particular device, madb will not provide the '--user' flag to the underlying adb command, and the current user will be used for that device as a result. Below is the list of madb commands which are affected by the default user ID settings: For more details on how to obtain the user ID from an Android device, see 'madb user help set'. Usage: The madb user commands are: Sets a default user ID to be used for the specified device, when there are multiple user accounts on a single device. The user IDs can be obtained using the 'adb [<device_serial>] shell pm list users' command. Alternatively, you can use 'madb exec' if you want to specify the device with a nickname. For example, running the following command: will list the available users and their IDs on the MyPhone device. Consider the following example output: There are two available users, "John Doe" and "Work profile". Each user is assigned a "user ID", which appears on the left of the user name. In this case, the user ID of "John Doe" is "0", and the user ID of the "Work profile" is "10". To use the "Work profile" as the default user when running madb commands on this device, run the following command: and then madb will use "Work profile" as the default user for device "MyPhone" in any of the subsequence madb commands. Usage: <device_serial> is the unique serial number for the device, which can be obtained from 'adb devices'. <user_id> is one of the user IDs obtained from 'adb shell pm list users' command. Unsets the default user ID assigned by the 'madb user set' command for the specified device. Running this command without any device specifiers will unset the default users only for the currently available devices and emulators, while keeping the default user IDs for the other devices. Usage: <device_serial> is the unique serial number for the device, which can be obtained from 'adb devices'. Lists all the currently stored default user IDs for devices. Usage: Clears all the currently stored default user IDs for devices. This command clears the default user IDs regardless of whether the device is currently connected or not. Usage: Prints the madb version number to the console. If this version of madb binary is an official release, this command will show the version number. Otherwise, the version will be in the form of "<version>-develop", where the version indicates the most recent stable release version prior to this version of madb binary. Usage: Help with no args displays the usage of the parent command. Help with args displays the usage of the specified sub-command or help topic. "help ..." recursively displays help for all commands and topics. Usage: [command/topic ...] optionally identifies a specific sub-command or help topic. The madb help flags are:
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