0

我是 Sherlock lib 的新手。我的代码如下

public class MainActivity extends SherlockFragmentActivity {

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    com.actionbarsherlock.app.ActionBar actionbar = getSupportActionBar();
    actionbar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
    actionbar.setTitle("PROFILE");
    ActionBar.Tab frag1tab = actionbar.newTab().setText("LOGIN");
    ActionBar.Tab frag2tab = actionbar.newTab().setText("REGISTER");

    Fragment fragment1 = new Fragment_1();
    Fragment fragment2 = new Fragment_2();

    frag1tab.setTabListener(new MyTabListener(fragment1));
    frag1tab.setTabListener(new MyTabListener(fragment2));

    actionbar.addTab(frag1tab);
    actionbar.addTab(frag2tab);

}

class MyTabListener implements ActionBar.TabListener {
    public Fragment fragment;

    public MyTabListener(Fragment fragment) {
        this.fragment = fragment;
    }

    @Override
    public void onTabReselected(Tab tab, FragmentTransaction ft) {
        // TODO Auto-generated method stub
        ft.replace(R.id.fragment_container, fragment);
    }

    @Override
    public void onTabSelected(Tab arg0, FragmentTransaction arg1) {
        // TODO Auto-generated method stub

    }

    @Override
    public void onTabUnselected(Tab arg0, FragmentTransaction arg1) {
        // TODO Auto-generated method stub

    }

}

}

我也尝试过直接实现监听器，但没有运气。它显示错误如下

java.lang.RuntimeException: Unable to start activity java.lang.IllegalStateException:     
Action Bar Tab must have a Callback
4

2 回答 2

1

您将 tabListener 设置为同一选项卡两次，即frag1tab..

   frag1tab.setTabListener(new MyTabListener(fragment1));
    frag1tab.setTabListener(new MyTabListener(fragment2));

它应该是

   frag1tab.setTabListener(new MyTabListener(fragment1));
    frag2tab.setTabListener(new MyTabListener(fragment2));
于 2013-10-18T06:59:23.793 回答
0

试试这个代码，

 @Override
    protected void onResume() {
        super.onResume();
}
于 2013-10-18T06:49:59.700 回答