关于android的layout_weight属性

 

关于layout_weight属性，以layout_width为例：

 

当layout_width为fill_parent时，对于一个组件，该组件相对于其它组件的layout_weight值越小时，它的宽度相对于其它组件越大。但最大不超过fill_parent。

当layout_width为wrap_content时，对于一个组件，该组件相对于其它组件的layout_weight值越小时，它的宽度相对于其它组件越小。但最小不小于wrap_content。

 

 

layout_height类似。

 

android官方文档：

layout_weight is used in LinearLayouts to assign "importance" to Views within the layout. All Views have a default layout_weight of zero, meaning they take up only as much room on the screen as they need to be displayed. Assigning a value higher than zero will split up the rest of the available space in the parent View, according to the value of each View's layout_weight and its ratio to the overalllayout_weight specified in the current layout for this and other View elements.