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<Android User Interface Design: Table Layouts ⁄ >




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A table layout is exactly what you might expect: a grid of made up of rows and columns, where a cell can display a view control. From a user interface design perspective, a TableLayout is comprised of TableRow controls-one for each row in your table. The contents of a TableRow are simply the view controls that will go in each "cell" of the table grid.

The appearance of a TableLayout is governed by several additional rules. First, the number of columns of the entire table matches the number of columns in the row with the most columns. Second, the width of each column is defined as the width of the widest content in the column. The TableLayout's child rows and cells layout_width attributes are always MATCH_PARENT - although they can be put in an XML file, the actual value can't be overridden. The TableLayout's layout_height of a cell can be defined, but a TableRow attribute for layout_height is always WRAP_CONTENT. Cells can span columns, but not rows. This is done through the layout_span attribute of the child view of a TableRow. A cell is a single child view within a TableRow. If you want a more complex cell with multiple views, use a layout view to encapsulate the other views.



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