Android documentation download

Android Developer Documentation: download? Ask Question. Asked 8 years, 8 months ago. Active 1 year, 1 month ago. Viewed 21k times. Improve this question. Add a comment. Active Oldest Votes. Analyze a frame profile. Frame Profiler UI. Customize or port game engines. Process input events. Support game controllers. Achieve proper frame pacing. Frame pacing in Vulkan.

Integrate Android Performance Tuner. Output audio. Manage memory. Use prebuilt or turnkey game engines. Develop with Defold. Develop with Godot. Develop with Unity. Use Android Performance Tuner. Game best practices. Maximize device availability. Art assets. OpenGL and Vulkan. Game Mode.

Best practices. Building effective unit tests. Automating UI tests. Testing app component integrations. Android Vitals. Optimizing for Battery Life. System tracing.

Build and test apps for accessibility. Advanced topics. Protecting against security threats with SafetyNet. Build for Billions. Build for Enterprise. App feedback. Device management.

Dedicated devices. This Android Nougat guide explains to you what is data saver in Android Nougat and how to use this new feature in Android Nougat. Android Nougat has a built-in call blocking feature. You can use this built-in Android Nougat call blocking allows you to block unwanted calls and messages in all Android Nougat phones.

You do not need any third-party apps. This Android Nougat guide shows you how to block calls and messages with Android Nougat call blocking and how to add a number to the list of blocked numbers in different ways. This Android Nougat guide explains how to set up Android Nougat lock screen wallpaper different from home screen wallpaper. If you have any questions or encounter any problems with Android Nougat Android 7.

For question on Android Lollipop Android 5. Please note, this is a owner-help-owner community. Android Debug Bridge adb is a versatile command-line tool that lets you communicate with a device. The adb command facilitates a variety of device actions, such as installing and debugging apps, and it provides access to a Unix shell that you can use to run a variety of commands on a device.

It is a client-server program that includes three components:. For information on connecting a device for use over ADB, including how to use the Connection Assistant to troubleshoot common problems, see Run apps on a hardware device. When you start an adb client, the client first checks whether there is an adb server process already running.

If there isn't, it starts the server process. When the server starts, it binds to local TCP port and listens for commands sent from adb clients—all adb clients use port to communicate with the adb server. The server then sets up connections to all running devices. It locates emulators by scanning odd-numbered ports in the range to , the range used by the first 16 emulators.

Where the server finds an adb daemon adbd , it sets up a connection to that port. Note that each emulator uses a pair of sequential ports — an even-numbered port for console connections and an odd-numbered port for adb connections. For example:. Emulator 1, console: Emulator 1, adb: Emulator 2, console: Emulator 2, adb: and so on As shown, the emulator connected to adb on port is the same as the emulator whose console listens on port Once the server has set up connections to all devices, you can use adb commands to access those devices.

Because the server manages connections to devices and handles commands from multiple adb clients, you can control any device from any client or from a script. On Android 4. Return to the previous screen to find Developer options at the bottom. You can now connect your device with USB. If connected, you'll see the device name listed as a "device. Note: When you connect a device running Android 4. This security mechanism protects user devices because it ensures that USB debugging and other adb commands cannot be executed unless you're able to unlock the device and acknowledge the dialog.

Android 11 and higher support deploying and debugging your app wirelessly from your workstation using Android Debug Bridge adb.

For example, you can deploy your debuggable app to multiple remote devices without physically connecting your device via USB. This eliminates the need to deal with common USB connection issues, such as driver installation. To use wireless debugging, you need to pair your device to your workstation using a pairing code.

Your workstation and device must be connected to the same wireless network. To connect to your device, follow these steps:. Before issuing adb commands, it is helpful to know what device instances are connected to the adb server. You can generate a list of attached devices using the devices command. The following example shows the devices command and its output. There are three devices running. The first two lines in the list are emulators, and the third line is a hardware device that is attached to the computer.

The adb devices command has a corner-case command sequence that causes running emulator s to not show up in the adb devices output even though the emulator s are visible on your desktop.

This happens when all of the following conditions are true:. One way to avoid this situation is to let the emulator choose its own ports, and don't run more than 16 emulators at once. Another way is to always start the adb server before you use the emulator command, as explained in the following examples. Example 1: In the following command sequence, the adb devices command starts the adb server, but the list of devices does not appear.

Stop the adb server and enter the following commands in the order shown. For the avd name, provide a valid avd name from your system. To get a list of avd names, type emulator -list-avds. Example 2: In the following command sequence, adb devices displays the list of devices because the adb server was started first.

To see the emulator in the adb devices output, stop the adb server, and then start it again after using the emulator command and before using the adb devices command, as follows:.

This set of libraries provides APIs for essential app architecture tasks like lifecycle management and data persistence, so you can write modular apps with less boilerplate code. Learn more. The Android Support Library offers backward-compatible versions of a number of features, including others not built into the framework.

The Data Binding Library enables you to write declarative layouts. Android Test helps you build and run test code for your app. The Google Play Billing Library provides a simple interface for sending billing requests and managing billing transactions with Google Play.

You can install and run your app on the Android Emulator faster than with a physical device.