2014-12-18 47 views
0

这是我MainActiviy.java中找不到合适的方法代替(INT,android.app.Fragment)

import android.app.Activity; 
import android.support.v7.app.ActionBarActivity; 
import android.support.v7.app.ActionBar; 
import android.app.Fragment; 
import android.support.v4.app.FragmentManager; 
import android.content.Context; 
import android.os.Build; 
import android.os.Bundle; 
import android.view.Gravity; 
import android.view.LayoutInflater; 
import android.view.Menu; 
import android.view.MenuItem; 
import android.view.View; 
import android.view.ViewGroup; 
import android.support.v4.widget.DrawerLayout; 
import android.widget.ArrayAdapter; 
import android.widget.TextView; 

public class MainActivity extends ActionBarActivity 
    implements NavigationDrawerFragment.NavigationDrawerCallbacks { 

    /** 
    * Fragment managing the behaviors, interactions and presentation of the navigation drawer. 
    */ 
    private NavigationDrawerFragment mNavigationDrawerFragment; 

    /** 
    * Used to store the last screen title. For use in {@link #restoreActionBar()}. 
    */ 
    private CharSequence mTitle; 

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

     mNavigationDrawerFragment = (NavigationDrawerFragment) 
       getSupportFragmentManager().findFragmentById(R.id.navigation_drawer); 
     mTitle = getTitle(); 

     // Set up the drawer. 
     mNavigationDrawerFragment.setUp(
       R.id.navigation_drawer, 
       (DrawerLayout) findViewById(R.id.drawer_layout)); 
    } 

    public void onNavigationDrawerItemSelected(int position) { 
     // update the main content by replacing fragments 
     Fragment fragment = new MyFragment1(); 
     FragmentManager fragmentManager = getSupportFragmentManager(); 
     switch(position) { 
      case 1: 
       fragment = new MyFragment1(); 
       break; 
      case 2: 
       fragment = new MyFragment2(); 
       break; 
     } 
     fragmentManager.beginTransaction() 
       .replace(R.id.container, fragment) 
       .commit(); 
    } 
    public void onSectionAttached(int number) { 
     switch (number) { 
      case 1: 
       mTitle = getString(R.string.title_section1); 
       break; 
      case 2: 
       mTitle = getString(R.string.title_section2); 
       break; 
      case 3: 
      mTitle = getString(R.string.title_section3); 
      break; 
     } 
    } 

    public void restoreActionBar() { 
     ActionBar actionBar = getSupportActionBar(); 
     actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_STANDARD); 
     actionBar.setDisplayShowTitleEnabled(true); 
     actionBar.setTitle(mTitle); 
    } 


    @Override 
    public boolean onCreateOptionsMenu(Menu menu) { 
     if (!mNavigationDrawerFragment.isDrawerOpen()) { 
      // Only show items in the action bar relevant to this screen 
      // if the drawer is not showing. Otherwise, let the drawer 
      // decide what to show in the action bar. 
      getMenuInflater().inflate(R.menu.main, menu); 
      restoreActionBar(); 
      return true; 
     } 
     return super.onCreateOptionsMenu(menu); 
    } 

    @Override 
    public boolean onOptionsItemSelected(MenuItem item) { 
     // Handle action bar item clicks here. The action bar will 
     // automatically handle clicks on the Home/Up button, so long 
     // as you specify a parent activity in AndroidManifest.xml. 
     int id = item.getItemId(); 

     //noinspection SimplifiableIfStatement 
     if (id == R.id.action_settings) { 
      return true; 
     } 

     return super.onOptionsItemSelected(item); 
    } 

    /** 
    * A placeholder fragment containing a simple view. 
    */ 
    public static class PlaceholderFragment extends Fragment { 
     /** 
     * The fragment argument representing the section number for this 
     * fragment. 
     */ 
     private static final String ARG_SECTION_NUMBER = "section_number"; 

     /** 
     * Returns a new instance of this fragment for the given section 
     * number. 
     */ 
     public static PlaceholderFragment newInstance(int sectionNumber) { 
      PlaceholderFragment fragment = new PlaceholderFragment(); 
      Bundle args = new Bundle(); 
      args.putInt(ARG_SECTION_NUMBER, sectionNumber); 
      fragment.setArguments(args); 
      return fragment; 
     } 

     public PlaceholderFragment() { 
     } 

     @Override 
     public View onCreateView(LayoutInflater inflater, ViewGroup container, 
           Bundle savedInstanceState) { 
      View rootView = inflater.inflate(R.layout.fragment_main, container, false); 
      return rootView; 
     } 

     @Override 
     public void onAttach(Activity activity) { 
      super.onAttach(activity); 
      ((MainActivity) activity).onSectionAttached(
        getArguments().getInt(ARG_SECTION_NUMBER)); 
     } 
    } 

} 

试图运行应用程序时,我得到的错误是:

Error:(63, 17) error: no suitable method found for replace(int,android.app.Fragment) 
method FragmentTransaction.replace(int,android.support.v4.app.Fragment,String) is not applicable 
(actual and formal argument lists differ in length) 
method FragmentTransaction.replace(int,android.support.v4.app.Fragment) is not applicable 
(actual argument android.app.Fragment cannot be converted to android.support.v4.app.Fragment by method invocation conversion) 

任何帮助将不胜感激。我插入的代码是从这个帖子:

How to change fragments using Android navigation drawer

我minsdk的版本是14,我的目标SDK版本是21

回答

3

如果使用support FragmentManager,你必须使用support Fragments。或者,使用每个版本的不支持版本。

+1

请注意,使用不支持的版本会使您在2.3和更低版本中崩溃。 – 2014-12-19 00:04:27

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