How to Use the Command 'sdkmanager' (with examples)

The sdkmanager command is a vital tool for Android developers, allowing them to manage the installation, update, and uninstallation of Android SDK components. This command-line utility gives developers a streamlined method to interact with the Android Software Development Kit, making it easier to access the necessary tools and libraries required for app development and testing. The sdkmanager is essential for ensuring that developers have the most up-to-date version of the SDK and have access to additional packages that may be needed for specific development tasks.

Use case 1: List Available Packages

Code:

sdkmanager --list

Motivation: When starting with Android development, or when maintaining your development environment, it’s crucial to know what packages are available to you. By listing the available packages, you gain insight into all the SDK components that you can install, update, or use. This is particularly beneficial for developers who need to ensure compatibility with specific Android versions or want to explore additional tools and examples provided by the Android SDK.

Explanation:

• The --list argument instructs the sdkmanager command to retrieve and display a list of all the SDK packages that are available for installation or update. This is your go-to command to survey the landscape of available SDK components and determine what you might need for your Android development projects.

Example Output:

Installed packages: 
  Path                 | Version | Description | Location
  -------              | ------- | -------     | -------
  build-tools;30.0.3   | 30.0.3  | Build Tools | ... 

Available packages:
  Path                 | Version
  -------              | -------
  platforms;android-29 | 5       | ...
  ...

Use case 2: Install a Package

Code:

sdkmanager "platforms;android-30"

Motivation: Installing a package is a fundamental process for setting up your development environment or adding new capabilities to your Android SDK. For instance, if you wish to develop an application compatible with Android 11, you’ll need to install the corresponding SDK platform package. This ensures that you have the requisite tools, libraries, and resources to build, run, and test your applications on the targeted Android version.

Explanation:

• The argument package specifies the exact package you want to install. In this command, "platforms;android-30" denotes the Android SDK Platform for Android 11 (API level 30). The package name format typically involves the package type, followed by a semicolon and the specific version or API level.

Example Output:

Installing packages:
[=======================================] 100% Reading...  
[=======================================] 100% Unzipping... 

Use case 3: Update Every Installed Package

Code:

sdkmanager --update

Motivation: Keeping every installed package up-to-date is crucial for Android developers who want to ensure that they have access to the latest features and security updates. Using outdated packages can lead to compatibility issues and missing features, possibly hampering your development process. Regular updates align your SDK components with the improvements and optimizations made by the Android team.

Explanation:

• The --update argument tells the sdkmanager to scan all installed packages and replace any outdated components with the latest versions available. This process ensures your development environment remains current and reliable.

Example Output:

Checking for updates...
Obsolete platforms;android-29 detected, deleting...
Installing platforms;android-30

Use case 4: Uninstall a Package

Code:

sdkmanager --uninstall "platforms;android-29"

Motivation: Sometimes you need to clean up your development environment by removing unnecessary packages. Uninstalling obsolete or unused SDK components can free up disk space and reduce clutter in your development environment, making it easier to manage and organize your SDK tools.

Explanation:

• The --uninstall argument directs the sdkmanager to remove a specified package from your current SDK installation. The package name, such as "platforms;android-29", identifies which component to delete.

Example Output:

Uninstalling packages:
[=======================================] 100% Uninstall complete... 

Conclusion:

The sdkmanager command is an indispensable tool for any Android developer, providing essential functionalities to efficiently manage the Android SDK. Whether you are listing available SDK packages, installing new ones, updating them, or cleaning up obsolete components, sdkmanager offers a command-line approach that integrates seamlessly with your development workflow. Getting acquainted with these use cases enables you to maintain a well-equipped and up-to-date development environment, preventing potential roadblocks and ensuring a smooth Android development experience.