带有ActionBarSherlock的Android选项卡和使用newInstance的片段

Question

我刚刚使用制表符+ actionbarsherlock +片段设置了一个项目，并希望在继续之前确保我的方法是正确的 - 主要是使用我的onTabSelected调用newInstance，这个例子源自CommonsWare的https://github.com/commonsguy/cw-omnibus/tree/master/ActionBar/TabFragmentDemo示例代码。

我的TabFragmentActivity：

public class TabFragmentActivity extends SherlockFragmentActivity
implements TabListener {

private static final String KEY_POSITION="position";

  @Override
  public void onCreate(Bundle state) {
    super.onCreate(state);

    ActionBar bar=getSupportActionBar();
    bar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
    bar.setDisplayShowTitleEnabled(false);
    bar.setDisplayShowHomeEnabled(false);

    bar.addTab(bar.newTab().setText(R.string.tab1)
            .setTabListener(this).setTag(0));

    bar.addTab(bar.newTab().setText(R.string.tab2)
            .setTabListener(this).setTag(1));

    bar.addTab(bar.newTab().setText(R.string.tab3)
            .setTabListener(this).setTag(2));

    bar.addTab(bar.newTab().setText(R.string.tab4)
            .setTabListener(this).setTag(3));

    if (state != null) {
      bar.setSelectedNavigationItem(state.getInt(KEY_POSITION));
    }
  }

@Override
public void onSaveInstanceState(Bundle state) {
  state.putInt(KEY_POSITION,
               getSupportActionBar().getSelectedNavigationIndex());
}  

@Override
public void onTabSelected(Tab tab, FragmentTransaction ft) {

    int i=((Integer)tab.getTag()).intValue();

    if (i == 0){
        ft.replace(android.R.id.content,
                Tab1Fragment.newInstance(i));           
    }
    else if (i == 1){
        ft.replace(android.R.id.content,
                Tab2Fragment.newInstance(i));           
    }
    else if (i == 2){
        ft.replace(android.R.id.content,
                Tab3Fragment.newInstance(i));           
    }
    else if (i == 3){
        ft.replace(android.R.id.content,
                Tab4Fragment.newInstance(i));           
    }

}

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

}

@Override
public void onTabReselected(Tab tab, FragmentTransaction ft) {
    // TODO Auto-generated method stub

}

我的Tab1Fragment：

public class Tab1Fragment extends SherlockFragment {
    private static final String KEY_POSITION="position";

    static Tab1Fragment newInstance(int position) {
        Tab1Fragment frag=new Tab1Fragment();
        Bundle args=new Bundle();

        args.putInt(KEY_POSITION, position);
        frag.setArguments(args);

        return(frag);
    }

    @Override
    public View onCreateView(LayoutInflater inflater,
                             ViewGroup container,
                             Bundle savedInstanceState) {

        View result=inflater.inflate(R.layout.tab1, container, false);

        return(result);
    }

}

我的Tab1Fragment最终会做很多AsyncTask重载 - 这还行吗？