Error Error incompatible types: android.app.FragmentManager cannot be converted to android.support.v4.app.FragmentManager
is drving me nuts.
In my app, I have 3 navigation drawer item, timesheet
,claim
and view
, created in MainActivity. Now I wanted to add two tabs
with swipe view
in view
item.
MainActivity // for navigation drawer
import android.app.Fragment;
import android.app.FragmentManager;
private void selectItem(int position) {
Fragment fragment = null;
switch (position) {
case 0:
fragment=new TimeSheet();
break;
case 1:
fragment=new Claims1();
break;
case 2:
fragment=new Viewview();
break;
default:
break;
}
TabsFragmentPagerAdapter.java
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
public class TabsFragmentPagerAdapter extends FragmentPagerAdapter {
public TabsFragmentPagerAdapter(FragmentManager fm) {
super(fm);
// TODO Auto-generated constructor stub
}
@Override
public Fragment getItem(int index) {
// TODO Auto-generated method stub
switch(index) {
case 0:
return new UpdatePage2();
case 1:
return new Receipt();
}
return null;
}
@Override
public int getCount() {
// TODO Auto-generated method stub
return 2;
}
}
ViewView.java
import android.app.Fragment;
import android.content.DialogInterface;
import android.content.Intent;
import android.database.sqlite.SQLiteDatabase;
import android.os.Bundle;
import android.app.FragmentTransaction;
import android.support.v4.view.ViewPager;
import android.app.ActionBar;
import android.support.v4.widget.SimpleCursorAdapter;
import android.support.v7.app.AlertDialog;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.ListView;
import com.example.project.project.database.MyDatabaseHelper;
public class ViewView extends Fragment implements ActionBar.TabListener {
InfoAPI sqlcon;
private SimpleCursorAdapter dataAdapter;
private SQLiteDatabase database;
private MyDatabaseHelper dbHelper;
private ListView listView;
private ViewPager viewPager;
private TabsFragmentPagerAdapter mAdapter;
private ActionBar actionBar;
private String[] tabs = {"Information", "receipt"};
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
View View1 = inflater.inflate(R.layout.viewview1, container, false);
listView = (ListView) View1.findViewById(R.id.listView1);
dbHelper = new MyDatabaseHelper(getActivity());
sqlcon = new InfoAPI(getActivity());
viewPager = (ViewPager) View1.findViewById(R.id.pager);
mAdapter = new TabsFragmentPagerAdapter(getActivity().getFragmentManager()); //here the error
viewPager.setAdapter(mAdapter);
actionBar = getActivity().getActionBar();
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
for (int i = 0; i < 2; i++) {
actionBar.addTab(actionBar.newTab().setText(tabs[i]).setTabListener(this));
}
viewPager.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {
@Override
public void onPageSelected(int arg) {
// TODO Auto-generated method stub
actionBar.setSelectedNavigationItem(arg);
}
@Override
public void onPageScrolled(int arg0, float arg1, int arg2) {
// TODO Auto-generated method stub
}
@Override
public void onPageScrollStateChanged(int arg0) {
// TODO Auto-generated method stub
}
});
BuildList();
return View1;
}
Problem :
Error:(49, 81) error: incompatible types: android.app.FragmentManager cannot be converted to android.support.v4.app.FragmentManager
If changed import android.support.v4.app.FragmentManager;
in TabsFragmentPagerAdapter
to import android.app.FragmentManager;
, the first issue solve but get this Error:(12, 15) error: incompatible types: android.app.FragmentManager cannot be converted to android.support.v4.app.FragmentManager
...I have no idea how to fix ..
Edited
MainActivity
import android.app.Fragment;
import android.support.v4.app.FragmentManager;
case 2:
fragment=new ViewView();
break;
default:
break;
}
if (fragment != null) {
FragmentManager fragmentManager = getFragmentManager();
fragmentManager.beginTransaction().replace(R.id.content_frame, fragment).commit();
mDrawerList.setItemChecked(position, true);
mDrawerList.setSelection(position);
setTitle(mNavigationDrawerItemTitles[position]);
mDrawerLayout.closeDrawer(mDrawerList);
} else {
Log.e("MainActivity", "Error in creating fragment");
}
}
Error
Error:(148, 30) error: incompatible types: ViewView cannot be converted to Fragment Error:(156, 69) error: incompatible types: android.app.FragmentManager cannot be converted to android.support.v4.app.FragmentManager Error:(157, 80) error: incompatible types: android.app.Fragment cannot be converted to android.support.v4.app.Fragment
Change
import android.app.Fragment;
import android.app.FragmentManager;
to
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
in every class. you are facing problems because in your Fragment creation class you are using support v4 fragment and in your MainActivity class you are inflating as a simple fragment.
You also need to change getFragmentManager()
to getSupportFragmentManager()
, and make sure they're extending a FragmentActivity
class.
Hope it will help you.