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Ice Cream Sandwich (ICS) sports two new widgets that have been designed to support the richer user interfaces made possible by larger displays: Space and GridLayout.

The most commonly used class for layout in Android is LinearLayout, which allows its children to be aligned in the usual ways: along either the horizontal or vertical axes. It's often possible to take a complicated layout and break it down into a set of nested linear layouts and, provided this nesting doesn't get too deep, this is still recommended as the first thing to consider if you are writing your user interface by hand.

A number of posts and articles (e.g. Android Layout Tricks #1, Flattening The Stack) have highlighted drawbacks of nested layouts; which fall into three basic categories:

- Inability to control alignment along both axes simultaneously

- Performance problems in hierarchies that are too deep

- Unsuitability for design tools that support free-form editing



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