tabHost.newTabSpec（）出现空指针错误

Question

tabHost.setCurrentTab(0);
tabHost.addTab(tabHost.newTabSpec(TAB_LOCAL_MUSIC)
.setIndicator(TAB_LOCAL_MUSIC).
setContent(new Intent(MainActivity.this,LocalMusicActivity.class)));
tabHost.addTab(tabHost.newTabSpec(TAB_RANDOM_LISTEN)
.setIndicator(TAB_RANDOM_LISTEN)
.setContent(new Intent(MainActivity.this,RandomListenActivity.class)));
tabHost.addTab(tabHost.newTabSpec(TAB_SEARCH_SONGS)
.setIndicator(TAB_SEARCH_SONGS)
.setContent(new Intent(MainActivity.this,SearchSongsActivity.class)));

Answer 1

看api说，如果是通过tabHost = (TabHost)findViewById(R.id.tabhost)得到TabHost，需要调用setup()方法，我调用后，出这个错误，07-26 12:32:18.010: ERROR/AndroidRuntime(634): Caused by: java.lang.IllegalStateException: Did you forget to call 'public void setup(LocalActivityManager activityGroup)'?

Answer 2

类似问题及解决办法：
http://stackoverflow.com/questions/8538437/your-content-must-have-a-tabhost-whose-id-attribute-is-android-r-id-tabhost
http://morry.iteye.com/blog/744598

Answer 3

看这里：
http://blog.csdn.net/aminfo/article/details/7795450