dadb

Blog Post: Our First Open-Source Project

A Kotlin/Java library to connect directly to an Android device without an adb binary or an ADB server

dependencies {
  implementation("dev.mobile:dadb:<version>")
}

Example Usage

Connect to emulator-5554 and install apkFile:

Dadb.create("localhost", 5555).use { dadb ->
    dadb.install(apkFile)
}

Note: Connect to the odd adb daemon port (5555), not the even emulator console port (5554)

Discover a Device

The following discovers and returns a connected device or emulator. If there are multiple it returns the first one found.

val dadb = Dadb.discover()
if (dadb == null) throw RuntimeException("No adb device found")

Use the following API if you want to list all available devices:

val dadbs = Dadb.list()

Connecting to a physical device

Prerequisite: Connecting to a physical device requires a running adb server. In most cases, this means that you must have the adb binary installed on your machine.

The Dadb.discover() and Dadb.list() methods now both support USB-connected devices.

// Both of these will include any USB-connected devices if they are available
val dadb = Dadb.discover()
val dadbs = Dadb.list()

If you'd like to connect directly to a physical device via its serial number. Use the following API:

val dadb = AdbServer.createDadb(
    adbServerHost = "localhost",
    adbServerPort = 5037,
    deviceQuery = "host:transport:${serialNumber}"
)

Install / Uninstall APK

dadb.install(exampleApkFile)
dadb.uninstall("com.example.app")

Push / Pull Files

dadb.push(srcFile, "/data/local/tmp/dst.txt")
dadb.pull(dstFile, "/data/local/tmp/src.txt")

Execute Shell Command

val response = dadb.shell("echo hello")
assert(response.exitCode == 0)
assert(response.output == "hello\n")

TCP Forwarding

dadb.tcpForward(
    hostPort = 7001,
    targetPort = 7001
).use {
    // localhost:7001 is now forwarded to device's 7001 port
    // Do operations that depend on port forwarding
}

Authentication

Dadb will use your adb key at ~/.android/adbkey by default. If none exists at this location, private and public keys will be generated by dadb.

If you need to specify a custom path to your adb key, use the optional keyPair argument:

val adbKeyPair = AdbKeyPair.read(privateKeyFile, publicKeyFile)
Dadb.create("localhost", 5555, adbKeyPair)

License

Copyright (c) 2021 mobile.dev inc.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

  http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.