[Docs] Android roadmap: Relative layout (#6902)

* [Docs] Android roadmap: Relative layout

* [Docs] Android roadmap: Format

src/data/roadmaps/android/content/relative@yE0qAQZiEC9R8WvCdskpr.md

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+# RelativeLayout
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+A **RelativeLayout** in Android is a type of ViewGroup that allows you to position child views relative to each other or relative to the parent layout. It's a flexible layout where you can arrange the child views in relation to one another based on certain rules, making it suitable for creating complex UI designs.
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+**RelativeLayout** was commonly used in earlier Android development, but with the introduction of `ConstraintLayout`, it's less frequently used in modern apps. 
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+Visit the following resources to learn more:
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+- [@official@Android developers: Relative Layout](https://developer.android.com/develop/ui/views/layout/relative)