неправильно второй аргумент типа

Question

Я реализую навигацию ящик в моем приложении и имея код, как показано ниже

MainActivity.java

import android.support.v4.app.Fragment; 
import android.app.FragmentManager; 
import android.os.Bundle; 
import android.support.v4.widget.DrawerLayout; 
import android.support.v7.app.AppCompatActivity; 
import android.util.Log; 
import android.view.View; 
import android.widget.AdapterView; 
import android.widget.ListView; 


import com.example.project.project.TimeSheet.ObjectDrawerItem; 


public class MainActivity extends AppCompatActivity { 

    private String[] mNavigationDrawerItemTitles; 
    private DrawerLayout mDrawerLayout; 
    private ListView mDrawerList; 


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

     // get list items from strings.xml 
     mNavigationDrawerItemTitles = getResources().getStringArray(R.array.nav_drawer_items); 
     mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout); 
     mDrawerList = (ListView) findViewById(R.id.left_drawer); 
     mDrawerList.setOnItemClickListener(new DrawerItemClickListener()); 

     // 2.1 create ActionBarDrawerToggle 
     ObjectDrawerItem[] drawerItem = new ObjectDrawerItem[3]; 

     drawerItem[0] = new ObjectDrawerItem(R.mipmap.timesheet, "Time Sheet"); 
     drawerItem[1] = new ObjectDrawerItem(R.mipmap.claims, "Claims"); 

     DrawerItemCustomAdapter adapter = new DrawerItemCustomAdapter(this, R.layout.listview_item_row, drawerItem); 
     mDrawerList.setAdapter(adapter); 

    } 

    public class DrawerItemClickListener implements ListView.OnItemClickListener { 


     @Override 
     public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 
      selectItem(position); 
     } 


     private void selectItem(int position) { 

      Fragment fragment = null; 

      switch (position) { 
       case 0: 
        fragment=new Information(); 
        break; 
       case 1: 
        fragment = new Claims(); 
        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); 
       getActionBar().setTitle(mNavigationDrawerItemTitles[position]); 
       mDrawerLayout.closeDrawer(mDrawerList); 

      } else { 
       Log.e("MainActivity", "Error in creating fragment"); 
      } 
     } 
    } 

} 

Я вижу красную линию под fragment

fragmentManager.beginTransaction().replace(R.id.content_frame, fragment).commit(); 

Когда я указываю на fragment, я получаю

Wrong 2nd ArgumentType.Found 'android.support.v4.app.Fragment', required 'android.app.Fragment'; 

И это является частью моей информационной деятельности

import android.app.DatePickerDialog; 
import android.app.Dialog; 
import android.support.v4.app.Fragment; 
import android.support.v4.app.FragmentTransaction; 
import android.content.Intent; 
import android.os.Bundle; 
import android.view.LayoutInflater; 
import android.view.View; 
import android.view.ViewGroup; 
import android.widget.ArrayAdapter; 
import android.widget.Button; 
import android.widget.DatePicker; 
import android.widget.EditText; 
import android.widget.Spinner; 
import com.example.project.project.database.MyDatabaseHelper; 

import java.util.ArrayList; 
import java.util.Calendar; 
import java.util.List; 

public class Information extends Fragment implements View.OnClickListener { 
    private Spinner spinner; 

    private MyDatabaseHelper dbHelper; 
    private com.example.project.project.API.InfoAPI ts; 
    private static EditText txtDate; 
    private DateDialog dialog; 
    private static String a; 
    private static String date1; 

    @Override 
    public View onCreateView(LayoutInflater inflater, ViewGroup container, 
          Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     View info = inflater.inflate(R.layout.information, container, false); 
     dialog=new DateDialog(); 
     ts = new com.example.project.project.API.InfoAPI(getActivity()); 
     txtDate = (EditText) info.findViewById(R.id.editText5); 
     spinner = (Spinner) info.findViewById(R.id.spinner); 
     txtDate.setOnClickListener(this); 
     addItemsOnSpinner(); 

     btnSaved.setOnClickListener(new View.OnClickListener() { 
      public void onClick(View arg0) { 
       String date=txtDate.getText().toString(); 
       ts.insertTimeSheet(spinner.getSelectedItem().toString(),spinner2.getSelectedItem().toString(),date,spinner3.getSelectedItem().toString()); 
       Toast.makeText(getApplicationContext(), "Saved", Toast.LENGTH_SHORT).show(); 

      } 
     }); 
     Button button=(Button)info.findViewById(R.id.button5); 

     button.setOnClickListener(new View.OnClickListener() { 
      public void onClick(View arg0) { 
       Intent intent = new Intent(getActivity().getApplicationContext(), WorkForce.class); 
       a = spinner.getSelectedItem().toString(); 
       intent.putExtra("a",a); 

       startActivity(intent); 
      } 
     }); 


      return info; 
    } 

    public void onClick(View arg0) { 
     FragmentTransaction ft = getFragmentManager().beginTransaction(); 
     dialog.show(ft, "DatePicker"); 

    } 



    public void addItemsOnSpinner() { 

     List<String> list = new ArrayList<String>(); 
     list.add("1"); 
     list.add("2"); 

     ArrayAdapter<String> adapter = new ArrayAdapter<String>(getActivity(), android.R.layout.simple_spinner_dropdown_item, list); 
     adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); 
     spinner.setAdapter(adapter); 


    } 

ошибка LogCat

Если я import android.app.Fragment на оба вида деятельности, я получаю несовместимые типы в моем Information.java

public void onClick(View arg0) { 
     FragmentTransaction ft = getFragmentManager().beginTransaction(); 
     dialog.show(ft, "DatePicker"); 

    } 

Answer 1

Изменить

getFragmentManager() 

в

getSupportFragmentManager()