Question

我使用以下代码在Fragment之间切换，没有任何问题：

private void showSelectedItem(int index) {
        Fragment mFragment = null;
        if (index == mLastMenuItemSelected)
            return;
        FragmentTransaction fts = getSupportFragmentManager().beginTransaction();
        if (mLastViewFragment != null) {
            fts.remove(mLastViewFragment);
        }
        switch (index) {
            case SV.MIS_ShowAllSubjects:
                mFragment = new FragmentViewAllSubjects();
                fts.replace(R.id.SubjectViewFragment, mFragment);
                txtSelectedSlideTitle.setText(UC.getString(R.string.slide_menu_main));
                break;
        }
        fts.commit();
        mLastMenuItemSelected = index;
        mSlidingMenu.showContent(true);
        mLastViewFragment = mFragment;
    }

现在我想使用SherlockFragment代替Fragment，为了进行此更改，我创建了新的Fragment：

public class ActionbarTabsPager extends SherlockFragmentActivity {
    ViewPager mViewPager;
    TabsAdapter mTabsAdapter;

    @Override
    protected void onCreate(Bundle savedInstanceState) {

    ...

    }
}

我希望将顶级代码更改为以下代码，以便在SherlockFragment s：

之间切换

private void showSelectedItem(int index) {
    SherlockFragmentActivity mFragment = null;
    if (index == mLastMenuItemSelected)
        return;
    FragmentTransaction fts = getSupportFragmentManager().beginTransaction();
    if (mLastViewFragment != null) {
        fts.remove(mLastViewFragment);
    }
    switch (index) {
        case SV.MIS_ShowAllSubjects:
            mFragment = new ActionbarTabsPager();
            fts.replace(R.id.SubjectViewFragment, mFragment);
            txtSelectedSlideTitle.setText(UC.getString(R.string.slide_menu_main));
            break;
    }
    fts.commit();
    mLastMenuItemSelected = index;
    mSlidingMenu.showContent(true);
    mLastViewFragment = mFragment;
}

但我得到了这个错误，我无法解决这个问题：

Error:(141, 29) java: incompatible types: ir.jaziire.Fragments.ActionbarTabsPager cannot be converted to com.actionbarsherlock.app.SherlockListFragment
Error:(149, 29) java: incompatible types: com.actionbarsherlock.app.SherlockListFragment cannot be converted to com.actionbarsherlock.app.SherlockFragmentActivity

我的问题是：

mFragment = new ActionbarTabsPager();

Answer 1

ActionbarTabsPager正在延长SherlockFragmentActivity，而不是SherlockFragment。变化

public class ActionbarTabsPager extends SherlockFragmentActivity {

到

public class ActionbarTabsPager extends SherlockFragment {

和

SherlockFragmentActivity mFragment = null;

到

Fragment mFragment = null;

Android使用ShelockFragment而不是Fragment

1 个答案: