Android sdk install target

Installing the Android SDK

Android Studio provides everything you need to start developing apps for Android, including the Android Studio IDE and the Android SDK tools.

If you didn’t download Android Studio, go download Android Studio now, or switch to the stand-alone SDK Tools install instructions.

Before you set up Android Studio, be sure you have installed JDK 6 or higher (the JRE alone is not sufficient)—JDK 7 is required when developing for Android 5.0 and higher. To check if you have JDK installed (and which version), open a terminal and type javac -version . If the JDK is not available or the version is lower than 6, go download JDK.

To set up Android Studio on Windows:

1. Launch the .exe file you just downloaded.
2. Follow the setup wizard to install Android Studio and any necessary SDK tools.

On some Windows systems, the launcher script does not find where Java is installed. If you encounter this problem, you need to set an environment variable indicating the correct location.

Select Start menu > Computer > System Properties > Advanced System Properties. Then open Advanced tab > Environment Variables and add a new system variable JAVA_HOME that points to your JDK folder, for example C:\Program Files\Java\jdk1.7.0_21 .

The individual tools and other SDK packages are saved outside the Android Studio application directory. If you need to access the tools directly, use a terminal to navigate to the location where they are installed. For example:

To set up Android Studio on Mac OSX:

1. Unzip the downloaded zip file, android-studio-ide- -mac.zip .
2. Drag and drop Android Studio into the Applications folder.
3. Open Android Studio and follow the setup wizard to install any necessary SDK tools.

Depending on your security settings, when you attempt to open Android Studio, you might see a warning that says the package is damaged and should be moved to the trash. If this happens, go to System Preferences > Security & Privacy and under Allow applications downloaded from, select Anywhere. Then open Android Studio again.

Follow the links to install the SDK outside of the Android Studio directories.

The individual tools and other SDK packages are saved outside the Android Studio application directory. If you need access the tools directly, use a terminal to navigate into the location where they are installed. For example:

To set up Android Studio on Linux:

1. Unpack the downloaded Tar file, android-studio-ide- -linux.zip , into an appropriate location for your applications.
2. To launch Android Studio, navigate to the android-studio/bin/ directory in a terminal and execute studio.sh .

You may want to add android-studio/bin/ to your PATH environmental variable so that you can start Android Studio from any directory.

If the SDK is not already installed, follow the setup wizard to install the SDK and any necessary SDK tools.

Note: You may also need to install the ia32-libs, lib32ncurses5-dev, and lib32stdc++6 packages. These packages are required to support 32-bit apps on a 64-bit machine.

Android Studio is now ready and loaded with the Android developer tools, but there are still a couple packages you should add to make your Android SDK complete.

The stand-alone SDK Tools package does not include a complete Android development environment. It includes only the core SDK tools, which you can access from a command line or with a plugin for your favorite IDE (if available).

If you didn’t download the SDK tools, go download the SDK now, or switch to the Android Studio install instructions.

To get started on Windows:

Your download package is an executable file that starts an installer. The installer checks your machine for required tools, such as the proper Java SE Development Kit (JDK) and installs it if necessary. The installer then saves the Android SDK Tools to a specified the location outside of the Android Studio directories.

1. Double-click the executable ( .exe file) to start the install.
2. Make a note of the name and location where you save the SDK on your system—you will need to refer to the SDK directory later when using the SDK tools from the command line.
3. Once the installation completes, the installer starts the Android SDK Manager.

To get started on Mac OSX:

Unpack the ZIP file you’ve downloaded. By default, it’s unpacked into a directory named android-sdk-mac_x86 . Move it to an appropriate location on your machine, such as a «Development» directory in your home directory.

Make a note of the name and location of the SDK directory on your system—you will need to refer to the SDK directory later when using the SDK tools from the command line.

To get started on Linux:

Unpack the .zip file you’ve downloaded. The SDK files are download separately to a user-specified directory.

Make a note of the name and location of the SDK directory on your system—you will need to refer to the SDK directory later when using the SDK tools from the command line.

Troubleshooting Ubuntu

• If you need help installing and configuring Java on your development machine, you might find these resources helpful:
  • https://help.ubuntu.com/community/Java
  • https://help.ubuntu.com/community/JavaInstallation
• Here are the steps to install Java:

  1. If you are running a 64-bit distribution on your development machine, you need to install additional packages first. For Ubuntu 13.10 (Saucy Salamander) and above, install the libncurses5:i386 , libstdc++6:i386 , and zlib1g:i386 packages using apt-get :

     For earlier versions of Ubuntu, install the ia32-libs package using apt-get :

     The Android SDK tools are now ready to begin developing apps, but there are still a couple packages you should add to make your Android SDK complete.

     Then, select which SDK bundle you want to install:

     Источник

     Android environment setup

     To build and run for Android, you must install the Unity Android Build Support platform module. You also need to install the Android Software Development Kit (SDK) and the Native Development Kit (NDK) to build and run any code on your Android device. By default, Unity installs a Java Development Kit based on OpenJDK.

     Note: Unity supports Android 4.4 “KitKat” and above. See AndroidSdkVersions for details.

     1. Install Android Build Support and the Android SDK & NDK tools

     Use the Unity Hub to install Android Build Support and the required dependencies
     See in Glossary : Android SDK & NDK tools, and OpenJDK.

     Add Android modules

     You can install Android Build Support, the Android SDK & NDK tools and OpenJDK when you install the Unity Editor, or add them at a later time.

     For information on adding the Android modules:

     If you are using a 2018 version of Unity, see the Unity 2018.4 documentation for information on manually installing these dependencies.

     2. Enable USB debugging on your device

     To enable USB debugging, you must enable Developer options on your device. To do this, find the build number in your device’s Settings menu. The location of the build number varies between devices; for stock Android, it’s usually Settings > About phone > Build number. For specific information on your device and Android version, refer to your hardware manufacturer.

     After you navigate to the build number using the instructions above, tap on the build number seven times. A pop-up notification saying “You are now X steps away from being a developer” appears, with “X” being a number that counts down with every additional tap. On the seventh tap, Developer options are unlocked.

     Note: On Android versions prior to 4.2 (Jelly Bean), the Developer options are enabled by default.

     Go to Settings > Developer options (or, if this does not work, on some devices the path is Settings > System > Developer options), and check the USB debugging checkbox. Android now enters debug mode when it is connected to a computer via USB.

     Connect your device to your computer using a USB cable. If you are developing on a Windows computer, you might need to install a device-specific USB driver. See the manufacturer website for your device for additional information.

     The setup process differs for Windows and macOS and is explained in detail on the Android developer website. For more information on connecting your Android device to the SDK, refer to the Run Your App section of the Android Developer documentation.

     ADB debugging for Chrome OS devices

     For information on how to set up your development environment for Chrome OS devices, and enable ADB An Android Debug Bridge (ADB). You can use an ADB to deploy an Android package (APK) manually after building. More info
     See in Glossary debugging, see Google’s documentation on Chrome OS Developer Environments.

     Connecting to your Chrome OS device

     Before you can deploy to your device you need to manually connect with ADB via the device’s IP address.

     To begin you need the IP address. Open up the Settings app and choose Network in the sidebar. Next click on the active network interface.

     If the interface is wireless then next choose the SSID that you are connected to. In the details you will see your IP address. Make a note of it.

     If you are using a wired connection your IP address will be shown on the first details page.

     Now we are ready to connect. For the sake of this example let’s say that the device’s IP is 192.168.0.100. In a shell or terminal run the following command

     adb connect 192.168.0.100

     If the connection was successful you will see a message such as connected to 192.168.0.65:5555 . And adb devices should verify that the device is connected. List of devices attached 192.168.0.65:5555 device

     From now on you may run ADB commands to target the device just as you would over a USB connection.

     Note: If your device or host machine goes to sleep or loses network connectivity you may need to reconnect.

     Customizing the Android SDK & NDK Tools and OpenJDK installation

     Unity recommends that you use the Unity Hub to install Android SDK & NDK tools, to ensure that you receive the correct versions and configuration. Unity installs Android SDK & NDK Tools and OpenJDK respectively in the SDK, NDK and OpenJDK folders under /Unity/Hub/Editor/[EditorVersion]/Editor/Data/PlaybackEngines/AndroidPlayer/.

     If you have multiple versions of Unity with the same required dependencies (be sure to check System requirements for the latest) and you want to avoid duplicating the installation of Android SDK & NDK Tools and OpenJDK, you can specify a shared location in the Unity Preferences window. To do this, go to Preferences > External tools and enter the directory paths in the SDK and NDK fields:

     Preferences window showing external tools settings for Android

     Warning: Unity does not officially support versions of the OpenJDK, SDK, or NDK other than the ones it supplies.

     To change the OpenJDK, SDK Tools, or NDK that Unity uses to build Android apps:

     1. Open the Project.
     2. Open the Preferences window (Windows and Linux: Edit >Preferences; macOS: Unity >Preferences).
     3. In the left navigation column, select External Tools.

     Change the OpenJDK path

     1. Uncheck JDK Installed with Unity (recommended).
     2. In the JDK field, enter the path to the JDK installation folder, or use the Browse button to locate it.

     Change the Android SDK Tools path

     1. Uncheck Android SDK Tools Installed with Unity (recommended).
     2. In the SDK field, enter the path to the SDK installation folder, or use the Browse button to locate it.

     Unity works with the most recent version of the Android SDK available at the time of the Unity version release.

     Change the Android NDK path

     1. Uncheck Android NDK Installed with Unity (recommended).
     2. In the NDK field, enter the path to the NDK installation folder, or use the Browse button to locate it.

     Each version of Unity requires a specific version of the Android NDK to be installed:

     Unity version	NDK version
     2018.4 LTS	r16b
     2019.4 LTS	r19
     2020.3 LTS	r19

     See the System requirements page for a complete list of requirements.

     Updating the Android SDK Target API

     Unity Hub installs the latest version of the Android SDK Target API required by Google Play.

     If you need to use a more recent version, you can change the Target API from the Target API Level field in the Player Settings window (menu: Edit > Project Settings > Player, then select the Android platform). You can find the Target API Level option in the Other Settings > Identification section.

     Selecting a target API for the Android SDK

     After you select an option other than the default, Unity prompts you to update the Android SDK API. You can choose to either:

     • Update the Android SDK
     • Continue to use the highest installed version of the Android SDK

     Note: If you select an older version of the Target API, the Unity Android SDK Updater will not be able to perform the update and will give you this message:

     Android SDK does not include your Target SDK of (version). Please use the Android SDK Manager to install your target SDK version. Restart Unity after SDK installation for the changes to take effect.

     In this case, to update the Android SDK Target API, you must use the Android sdkmanager from either Android Studio or the command line tool. Regardless of the method you chose, make sure to select the correct Android SDK folder for Unity in the Edit > Preferences > External Tools window.

     On Windows, if the Unity Editor is installed in the default folder ( /Program Files/ ), you must run the sdkmanager with elevated privilege (Run as Administrator) to perform the update.

     Источник

     Читайте также:  Button methods in android