摘要：
最近，在android中用代码动态改变某种布局（组件）的高度时，会遇到如题所示的类转换异常。上网查了一下，如下所示：These supply parameters to theparentof this view specifying how it should be arranged. There are many subclasses of ViewGroup.LayoutParams, and these correspond to the different subclasses of ViewGroup that are responsible for arranging their 阅读全文
