ReclyView点击图片进行切换

然后在点击事件里面写逻辑：

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public void checkIv(View view){          Toast.makeText(MainActivity. this , "点击了切换视图按钮" ,Toast.LENGTH_SHORT).show();          if (b== false ) {              //点击后想要变成什么要的布局样式就搞一个你的需求              recView.setLayoutManager( new GridLayoutManager( this , 2 ));              recView.setAdapter(recAdapter);              //给布尔值重新赋值              b = true ;              //给点击按钮的图片重新赋值              cIv.setImageResource(R.mipmap.ic_linear);          } else if (b== true ) {              recView.setLayoutManager( new LinearLayoutManager( this ));              recView.setAdapter(recAdapter);              //给布尔值重新赋值              b = false ;              //给点击按钮的图片重新赋值              cIv.setImageResource(R.mipmap.ic_grid);          }

2	//先定义一个布尔值用来切换      private boolean b = false ;