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androidr.java-file

What does R.id.myView refer to?

Could you please tell me what three single components of this name refer to?

R.id.myView
Solution

  • R - R.java is an auto-generated file by aapt (Android Asset Packaging Tool) which contains resource IDs for all the resources of res directory.

    public final class R 
extends Object

    .id - Find view using its id "defined by you"

    public static final class R.id 
extends Object

    myView - It is the view that you defined using the android:id="@+id/your_view" attribute in your XML file.

    So, finally we can find or identify any view using R.id.your_view.