What is aapt(Android Asset Packaging Tool) & How it works?

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AAPT:-

AAPT stands for Android Asset Packaging Tool. The Android Asset Packaging Tool (aapt) takes your application resource files, such as the AndroidManifest.xml file and the XML files for your Activities, and compiles them.This is a great tool which help you  to view, create, and update your APKs (as well as zip and jar files). It can also compile resources into binary assets. It is the base builder for Android aplications. This tool is a piece of the SDK (and assemble framework) and permits you to see, make, and redesign Zip-perfect chronicles (zip, jolt, apk).
When your application is compiled, aapt generates the R class, which contains resource IDs for all the resources in your res/ directory. For each type of resource, there is an R subclass (for example, R.drawable for all drawable resources), and for each resource of that type, there is a static integer (for example, R.drawable.icon). This integer is the resource ID that you can use to retrieve your resource.
Though you probably won't often use aapt directly, build scripts and IDE plugins can utilize this tool to package the apk file that constitutes an Android application.

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