The method getTabHost() is undefined问题解决

getTabHost() is a method of TabActivity not Activity. You'll need to extend that instead of Activity for the method to be defined in your object.

MainActivity 继承自Activity ，当使用 getTabHost()，会提示getTabHost() is undefined，这是因为getTabHost()不是Activity的方法函数，需要将继承Activity改成TabActivity ，即可。

例：

public class TabHostActivity extends TabActivity {
    private TabHost tabHost;
    private Intent certificateIntent;
    private Intent feeIntent;
    private Intent scoreIntent;
    private Intent studyIntent;
    private Intent moreIntent;
 
    @Override
    publicvoid onCreate(Bundle savedInstanceState) {
       super.onCreate(savedInstanceState);
       tabHost = getTabHost();
       initIntent();
       addSpec();
    }