In eclipse in android, This LinearLayout layout or its LinearLayout parent is possibly useless warning information

Eclipse prompt: This LinearLayout layout or its LinearLayout parent is possibly useless yellow exclamation point warning information

The following layout code:

 
         
  
   
Android: id = "@ + id/listener" android: layout_width = "fill_parent" android: layout_height = "wrap_content" android: orientation = "vertical">
           
       
  
 

Warning cause: the warning means that the parent layout control (the outermost LinearLayout) in this layout file is useless, because a sublinearlayout layout is nested in the LinearLayout layout, in my entire layout file, the LinearLayout of the outermost layer is used to layout the parent control as a whole. As a result, this layout Code repeats the LinearLayout layout.

The ending method is simple. You only need to repeat a LinearLayout. The correct code is as follows:

In this way, the yellow warning information will disappear and the robot will be able to run normally.