This command is helpful for testing your app across different screen sizes by mimicking a small screen resolution using a device with a large screen, and vice versa. Example: am display-size x display-density dpi Override device display density. This command is helpful for testing your app across different screen densities on high-density screen environment using a low density screen, and vice versa. Example: am display-density to-uri intent Print the given intent specification as a URI.
Specification for intent arguments For activity manager commands that take an intent argument, you can specify the intent with the following options:. Within an adb shell, you can issue commands with the package manager pm tool to perform actions and queries on app packages installed on the device.
You can also issue a package manager command directly from adb without entering a remote shell. Options: -f : See their associated file. Options: -g : Organize by group. Options: -f : List the APK file for the test package. Options: -r : Reinstall an existing app, keeping its data. This feature is only supported on certain devices. This option forces adb to use the feature or fail if it is not supported with verbose information on why it failed.
Options: -k : Keep the data and cache directories around after package removal. On devices running Android 6. On devices running Android 5. Location values: 0 : Auto: Let system decide the best location. Note: This is only intended for debugging; using this can cause apps to break and other undesireable behavior. To help you develop and test your device management or other enterprise apps, you can issue commands to the device policy manager dpm tool.
Use the tool to control the active admin app or change a policy's status data on the device. You can also issue a device policy manager command directly from adb without entering a remote shell:. You can also pass --user current to select the current user. The app must declare android:testOnly in the manifest. This command also removes device and profile owners.
This is useful to avoid the device's scheduling restrictions when developing apps that manage freeze-periods. See Manage system updates. Supported on devices running Android 9. This command is rate-limited. The screencap command is a shell utility for taking a screenshot of a device display. The utility records screen activity to an MPEG-4 file. You can use this file to create promotional or training videos or for debugging and testing.
To begin recording your device screen, run the screenrecord command to record the video. Then, run the pull command to download the video from the device to the host computer. The utility records at the native display resolution and orientation by default, with a maximum length of three minutes.
Table 5. Starting in Android 7. You might want to examine the collected profiles to understand which methods are determined to be frequently executed and which classes are used during app startup.
If you test your app across multiple test devices, it may be useful to reset your device between tests, for example, to remove user data and reset the test environment.
You can perform a factory reset of a test device running Android 10 API level 29 or higher using the testharness adb shell command, as shown below. When restoring the device using testharness , the device automatically backs up the RSA key that allows debugging through the current workstation in a persistent location. That is, after the device is reset, the workstation can continue to debug and issue adb commands to the device without manually registering a new key.
Additionally, to help make it easier and more secure to keep testing your app, using the testharness to restore a device also changes the following device settings:. If you app needs to detect and adapt to the default settings of the testharness command, you can use the ActivityManager. It includes commands such as. You can also execute SQLite commands from the command line, as shown below. For more information, see the sqlite3 command line documentation. Content and code samples on this page are subject to the licenses described in the Content License.
Android Studio. Download What's new User guide Preview. Meet Android Studio. Manage your project. Write your app. Build and run your app. Run apps on the emulator. Run apps on a hardware device. Configure your build. Optimize your build speed. Debug your app. Test your app. Profile your app. Android Studio profilers. Profile CPU activity. Benchmark your app. Measure performance.
Publish your app. Command line tools. Android Developers. It is a client-server program that includes three components: A client , which sends commands. The client runs on your development machine. You can invoke a client from a command-line terminal by issuing an adb command.
A daemon adbd , which runs commands on a device. The daemon runs as a background process on each device. This allows you to install apps from internet or other sources. Lean more about: Root with King Root. Open the rootK folder on your desktop, find and start the run.
This will trigger the rooting Kindle Fire HD process. And the Utility will get necessary tools automatically. It may take a while to complete installation and rooting. Keep your Kindle Fire connected to the computer during the process.
If the connection is interrupted while rooting, your Kindle Fire will be bricked. Step 3 : When you see the Root Installed message pops up, it means that your Kindle Fire is rooted successfully. And you can start enjoying the advantage of root access privilege. Also open the run. Wait for the Google Play installation to complete.
Next, find the Go Launcher icon and touch it to open the home screen, which is much like a standard Android tablet. Tap the Market icon, your Google Play will show up. And you do not need to install everything manually.
You will also like: Root Android device with iRoot. Amazon Kindle is a very special device on market. The former is more suitable for readers and the latter is more like a tablet. They are running on a based-on Android operating system.
That makes it is possible to root Kindle Fire and get more customized capacities. In this tutorial, we have shared the step by step guides to help you break root access restraint on Kindle Fire HD. We suggest you to learn the warning first. If you are sure, you can follow our guides and suggestions to root your Kindle Fire smoothly. WhatsApp Transfer. Android Data Recovery. Broken Android Data Extraction. Phone Transfer. I can't comment this topic because I don't have enough reputation : adb cannot connect to daemon at tcp I have exactely the same problem.
I hope my question will not be deleted because it's the same topic I would like to do this but I didn't find how to downgrade adb. The uninstall-old argument said " Uninstall successful! Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. Downgrade adb from 1. Asked 4 years, 7 months ago.
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