After installing, open the Android SDK Manager and add at least one Android SDK Platform, the Platform Tools, the Build Tools, and the USB drivers if you’re using Windows. Install the Android SDK using the command line tools

Using the command line tools is a smaller download and does not install additional software, but it can be more challenging to use. Android Studio provides an easy to use GUI based tool but installs additional software on your computer. You can install the Android SDK using command line tools or through Android Studio. By default, Unity installs a Java Development Kit based on OpenJDK.

It features sample projects with source code as well as various tutorials to help you get started.Whether you’re building an Android application in Unity or programming it from scratch, you must set up the Android Software Development Kit (SDK) before you can build and run any code on your Android device. Taking into account the versatility offered by the Android operating system, Android SDK provides a streamlined solution for putting together software applications compatible with Android devices, whether you're a less experienced or skilled developer. The easiest solution is to install everything from the Android Studio package. The SDK can be installed as a standalone product but this means that you have to separately take care of the dependencies. To be able to install Android SDK, you have to first set up the newest version of JDK. These can be used to support new and existing Android features such as logcat, bmgr and Android Debugging Bridge. The platform tools are useful for unlocking the device bootloader too, as well as for flashing the device with a new system image, connecting and rooting them using fastboot, adb and others. The SDK platform along with the platform and build utilities can be selected or deselected for installation from the Android SDK manager.

Users can also take advantage of an emulator and all the libraries required for building tools optimized for Android. Samples projects complete with source code and tutorials can be used by first-time Android developers to get a better idea of how everything works. Build, compile, test and debug Android apps using this SDK It can also be used with the sdkmanager command-line utility as well as with the help of Eclipse and Java Development Kit (JDK). The software development kit is part of Android Studio and the SDK tools package. Released by Google, Android SDK provides developers with all the necessary tools, components and libraries for creating, compiling, testing and debugging mobile applications compatible with the Android operating system. Note: Android SDK can be download via Android Studio or using the sdkmanager command-line utility, which is included in the SDK tools package.

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