我在android中制作标签。我正在使用TabHost来实现这一目标。我在此行getTabHost()
上的TabHost tabHost = getTabHost();
方法下获得了红线。我不知道为什么我会这样做。我怎样才能使这个例子有效?
这是我的完整代码
public class TabActivity extends Activity {
//TabHost mTabHost;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Resources res = getResources(); // Resource object to get Drawables
TabHost tabHost = getTabHost(); // The activity TabHost
TabHost.TabSpec spec; // Resusable TabSpec for each tab
Intent intent; // Reusable Intent for each tab
//Artist Tab
intent = new Intent(this, Artist.class);
spec = tabHost.newTabSpec("artists").setIndicator("Artist", res.getDrawable(R.drawable.tab_icon)).setContent(intent);
tabHost.addTab(spec);
//Songs
intent = new Intent(this, Songs.class);
spec = tabHost.newTabSpec("songs").setIndicator("Songs", res.getDrawable(R.drawable.tab_icon)).setContent(intent);
tabHost.addTab(spec);
//Albums
intent = new Intent(this, Album.class);
spec = tabHost.newTabSpec("artists").setIndicator("Artist", res.getDrawable(R.drawable.tab_icon)).setContent(intent);
tabHost.addTab(spec);
tabHost.setCurrentTab(1);
}
}
答案 0 :(得分:2)
您需要扩展My TabActivity而不是简单的活动 尝试
public class MyTabActivity extends TabActivity
而不是
public class MyTabActivity extends Activity