Java类从多个类扩展

Question

I was having some problem when trying extend more than one class in Android development. So basically what I am trying to do is I got a navigation drawer:

customAdapter = new CustomExpandAdapter(this, listParent, listDataChild);
mDrawerList.setAdapter(customAdapter);
mDrawerList.setChoiceMode(ExpandableListView.CHOICE_MODE_SINGLE);

    // Navigation drawer with sub menu goes here
private void selectItem(int groupPosition, int position) {
    selectedPosition = position;
    mDrawerLayout.closeDrawer(navDrawerView);

    // Navigation item for profile
    if (groupPosition == 0) {
        switch (selectedPosition) {
        case 0:
            break;
        case 1:
            break;      
    else if (groupPosition == 3) {
        switch (selectedPosition) {
        case 0:
            break;
        case 1:
            Toast.makeText(ENeighbourhoodActivity.this, "Analyze Event",
                    Toast.LENGTH_LONG).show();
            break;
        }
    }
    setTitle(mEventSelection[selectedPosition]);
}

And these codes are in my MainActivity.java . Then from my MainActivity, when I selected certain button, I will navigate to Detail.java . However, in my Detail.java , I am extending FragmentActivity because I am using tab inside Detail.java :

public class EventDetailMain extends FragmentActivity {
Context context = this;

ViewPager Tab;
EventDtlTabPagerAdapter TabAdapter;
ActionBar actionBar;
}

And when I go to Detail.java, the navigation drawer is no longer there because I did not extend from the class. I wonder how should I extend from two class at the same time.

Thanks in advance.

Answer 1

在主要活动中，将Detail.java作为片段并编写您的代码。这样，导航抽屉也可用于您的Detail.java。