MeasureSpec

/** 

          * Measure specification mode: The parent has not imposed any constraint 

          * on the child. It can be whatever size it wants. 

          */ 

         public static final int UNSPECIFIED = 0 << MODE_SHIFT; 


         /** 

          * Measure specification mode: The parent has determined an exact size 

          * for the child. The child is going to be given those bounds regardless 

          * of how big it wants to be. 

          */ 

         public static final int EXACTLY     = 1 << MODE_SHIFT; 


         /** 

          * Measure specification mode: The child can be as large as it wants up 

          * to the specified size. 

          */ 

         public static final int AT_MOST     = 2 << MODE_SHIFT;