TabHost tabHost = getTabHost();有关问题

TabHost tabHost = getTabHost();问题
后面gettabhost有错误The method getTabHost() is undefined for the type tabhost

[解决办法]
TabHost tabHost = (TabHost)getTabHost();
[解决办法]
不是说你这方法未定义么！？
Activity***.this.getTabHost();或mContext.getTabHost();