java.lang.ClassCastException: android.widget.FrameLayout$LayoutParams cannot be cast to android.widg
 
 
  时间 2013-09-23 22:36:41  傲慢的上校的专栏原文  http://blog.csdn.net/lilu_leo/article/details/11952717
  
  
   
            有时候需要在在代码中设置LayoutParams,自己为一个FrameLayout设置LayoutParams的时候,遇上如题问题,
 
             简单的举个栗子说明一下:最外层有ReLativeLayout A,里面有两个LinearLayout 
B、C,而B中又有一个一个FrameLayout 
D。如果要在代码里设置B的LayoutParams,B的LayoutParams要为RelativeLayout.LayoutParams。 
   
 
 
   RelativeLayout.LayoutParams 
params = new RelativeLayout.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);
    B.setLayoutParams(params); 
   
         而D要设置的话,需要: 
   LinearLayout.LayoutParams 
params = new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, 0);
    params.weight = 8;   D.setLayoutParams(params); 
   
可以解决了,分享给大家 
   
 
 
转载于:https://www.cnblogs.com/wangying222/p/6143900.html