It will make Android development easier for beginners. You can install these individually. Those that have a blue box with a dash through are ready for updating. You may also want the Android Emulator and system images if you plan on running and testing your apps on your PC. Android Studio will let you know if any updates are mandatory, so you can mostly forget all about the SDK manager likewise, Android Studio itself will prompt you when it is ready for an update.
Now you know how to start supporting the most recent versions of Android, once you graduate from beginner to status that is. You may be wondering whether you can use the Android SDK on its own, or whether you would ever need to. The one use-case where this is convenient is if you ever find yourself needing to use a different Integrated Development Environment IDE , such as Unity instead of Android Studio.
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Fix "SDK location not found. Define location with sdk. These include a number of build tools, debugging tools, and image tools. The Build tools were once categorized under the same heading as the Platform tools but have since been decoupled so that they can be updated separately. As the name suggests, these are also needed to build your Android apps. This includes the zipalign tool for instance, which optimizes the app to use minimal memory when running prior to generating the final APK, and the apksigner which signs the APK surprise!
The Platform tools are more specifically suited to the version of Android that you want to target. Generally, it is best to install the latest Platform tools, which will be installed by default. After first installation though, you need to keep your Platform-tools constantly updated. The tools should be backwards compatible, meaning that you will still be able to support older versions of Android.
Read Next: Anatomy of an app: An introduction to activity lifecycles. It relies on Platform-tools in order to understand the Android version that is being used on said device and hence it is included in the Platform-tools package. You can use ADB to access shell tools such as logcat, to query your device ID or even to install apps. The Android emulator is what lets you test and monitor apps on a PC, without necessarily needing to have a device available.
To use this, you also get an Android system image designed to run on PC hardware. You should also check out our guide to installing the Android SDK , as it goes over what each component does in more detail. I also recommend this resource on the build process that will help put the SDK into a little more context.
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