탐색 서랍이 조각을 표시하지 않습니다.

Question

사용자가 탐색 서랍에서 항목을 클릭 할 때 다른 조각을 표시하려고합니다. 조각을 표시 할 수 없습니다. 오류 메시지가 표시되지 않습니다. 그것은 단지 조각을 표시하지 않습니다.

레이아웃 :

<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:app="http://schemas.android.com/apk/res-auto" 
    android:id="@+id/drawerlayout" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent"> 
    <!-- The main content view --> 


<LinearLayout 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:id="@+id/main_content" 
    android:orientation="vertical"> 

    <android.support.v7.widget.Toolbar 
     android:id="@+id/my_toolbar" 
     android:layout_width="match_parent" 
     android:layout_height="?attr/actionBarSize" 
     android:background="?attr/colorPrimary" 
     android:elevation="4dp" 
     android:theme="@style/ThemeOverlay.AppCompat.ActionBar" 
     app:popupTheme="@style/ThemeOverlay.AppCompat.Light"/> 

    <android.support.v7.widget.RecyclerView 
     android:id="@+id/notes_list" 
     android:scrollbars="vertical" 
     android:layout_width="match_parent" 
     android:layout_height="match_parent"/> 


</LinearLayout> 

    <!-- The navigation drawer --> 
    <ListView android:id="@+id/navigationitems" 
     android:layout_width="240dp" 
     android:layout_height="match_parent" 
     android:layout_gravity="start" 
     android:choiceMode="singleChoice" 
     android:divider="@android:color/transparent" 
     android:background="@android:color/darker_gray" 
     android:dividerHeight="0dp" 
     /> 
</android.support.v4.widget.DrawerLayout> 


MainActivity: 

package com.example.note.pankajpc.note; 

import android.app.AlarmManager; 
import android.app.PendingIntent; 
import android.app.SearchManager; 
import android.content.Context; 
import android.content.Intent; 
import android.os.Bundle; 
import android.support.v4.app.Fragment; 
import android.support.v4.app.FragmentManager; 
import android.support.v4.app.FragmentTransaction; 
import android.support.v4.widget.DrawerLayout; 
import android.support.v7.app.ActionBarDrawerToggle; 
import android.support.v7.app.AppCompatActivity; 
import android.support.v7.widget.DividerItemDecoration; 
import android.support.v7.widget.LinearLayoutManager; 
import android.support.v7.widget.RecyclerView; 
import android.support.v7.widget.SearchView; 
import android.support.v7.widget.Toolbar; 
import android.view.ContextMenu; 
import android.view.Menu; 
import android.view.MenuItem; 
import android.view.View; 
import android.view.WindowManager; 
import android.widget.AdapterView; 
import android.widget.FrameLayout; 
import android.widget.ListView; 
import android.widget.Toast; 

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

import io.realm.Case; 
import io.realm.Realm; 
import io.realm.RealmChangeListener; 
import io.realm.RealmResults; 
import io.realm.Sort; 

public class MainActivity extends AppCompatActivity { 

    private ListView mNavigationItem; 
    private DrawerLayout mDrawerLayout; 
    private FrameLayout mMainContent; 
    Intent intent; 
    String [] mNavigationItemArray; 
    List <DrawerItem> mDrawerItem = new ArrayList(); 
    private ActionBarDrawerToggle mDrawerToggle; 
    private RecyclerView mRecyclerView; 
    private static NoteAdapter mNoteAdapter; 
    private static Realm mRealm; 
    private static Context context1; 
    private RealmResults<NoteModel> mResults; 
    SearchView mSearchView; 
    String mSearchString=null; 
    private ContextMenu contextMenu; 



    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_main); 
     Toolbar myToolbar = (Toolbar) findViewById(R.id.my_toolbar); 
     setSupportActionBar(myToolbar); 
     Realm.init(this); 
     context1 = this; 
     // initAlarm(); 
     mRealm = Realm.getDefaultInstance(); 
     //initialize relam database 
     initUi(); 
     initDrawerItem(); 


     mRecyclerView = (RecyclerView)findViewById(R.id.notes_list); 
     mRecyclerView.setLayoutManager(new LinearLayoutManager(this)); 
     mRecyclerView.addItemDecoration(new DividerItemDecoration(this,DividerItemDecoration.VERTICAL)); 
     mNoteAdapter = new NoteAdapter(this,mResults,mRealm); 
     mRecyclerView.setAdapter(mNoteAdapter); 
     mNavigationItemArray = getResources().getStringArray(R.array.navigation_list); 
     mNavigationItem = (ListView)findViewById(R.id.navigationitems); 
     mDrawerLayout = (DrawerLayout) findViewById(R.id.drawerlayout); 
     getSupportActionBar().setHomeButtonEnabled(true); 
     getSupportActionBar().setDisplayHomeAsUpEnabled(true); 
     getSupportActionBar().setHomeAsUpIndicator(R.drawable.ic_navigation); 


     mDrawerToggle = new ActionBarDrawerToggle(this,mDrawerLayout,R.string.app_name,R.string.app_name){ 

     }; 
     mDrawerLayout.addDrawerListener(mDrawerToggle); 



     //setting custom adapter on Navigation Drawer 
     mNavigationItem.setAdapter(new CustomDrawerAdapter(this,R.layout.custom_navigation_listview_row,mDrawerItem)); 

     //setting onClick Listener on Navigation Drawer 
     mNavigationItem.setOnItemClickListener(new AdapterView.OnItemClickListener() { 
      @Override 
      public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) { 
       Fragment fragment = null; 
       mDrawerLayout.closeDrawers(); 

       switch (mDrawerItem.get(i).getItemName()){ 
        case "Add a Note": 
         intent = new Intent(MainActivity.this,AddNote.class); 
         intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP); 
         startActivity(intent); 
         break; 
        case "Settings": 
         Toast.makeText(MainActivity.this,"test1",Toast.LENGTH_SHORT).show(); 
         Fragment fragment1 = new TestFragment(); 
         FragmentTransaction ft = getSupportFragmentManager().beginTransaction(); 
         ft.add(R.id.main_content, fragment1); 
         ft.commit(); 

         break; 
       } 


      } 
     }); 

    } 

    private void initAlarm() { 

     Intent i = new Intent(this,AlarmReceiver.class); 
     PendingIntent alarmIntent = PendingIntent.getBroadcast(this, 0, i, 0); 
     AlarmManager am = (AlarmManager)this.getSystemService(ALARM_SERVICE); 
     am.setRepeating(AlarmManager.ELAPSED_REALTIME_WAKEUP,200,200,alarmIntent); 
    } 

    private void initDrawerItem() { 
     mDrawerItem.add(new DrawerItem("Notes",R.drawable.ic_notes)); 
     mDrawerItem.add(new DrawerItem("Add a Note",R.drawable.ic_add)); 
     mDrawerItem.add(new DrawerItem("Search",R.drawable.ic_search)); 
     mDrawerItem.add(new DrawerItem("Trash",R.drawable.ic_trash)); 
     mDrawerItem.add(new DrawerItem("Settings",R.drawable.ic_settings)); 
    } 


    private void initUi() { 
     mResults = mRealm.where(NoteModel.class).findAllSortedAsync("mNoteDateTime"); 

    } 


    protected void onStart() { 
     super.onStart(); 
     this.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN); 
     mResults.addChangeListener(new RealmChangeListener<RealmResults<NoteModel>>() { 
      @Override 
      public void onChange(RealmResults<NoteModel> element) { 
       mNoteAdapter.update(mResults); 


      } 
     }); 
    } 

    @Override 
    //This override displays the items when action bar up button click 
    public boolean onOptionsItemSelected(MenuItem item) { 
     int id = item.getItemId(); 
     if (mDrawerToggle.onOptionsItemSelected(item)) { 
      return true; 
     } 

     //handling the menu clicks on menu.xml 
     switch (id){ 
      case R.id.actionAdd: 
       startActivity((new Intent(context1,AddNote.class)).setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP)); 
       break; 
      case R.id.dateCreated: 
       mResults = mRealm.where(NoteModel.class).findAllSorted("mNoteDateTime"); 
       mNoteAdapter.update(mResults); 
       break; 
      case R.id.alphabetically: 
       mResults = mRealm.where(NoteModel.class).findAllSorted("mNoteTitle"); 
       mNoteAdapter.update(mResults); 
       break; 
      case R.id.priority: 
       mResults = mRealm.where(NoteModel.class).findAllSorted("mNotePriority", Sort.DESCENDING); 
       mNoteAdapter.update(mResults); 
       break; 
     } 

     return true; 
    } 




    @Override 
    public boolean onCreateOptionsMenu(final Menu menu) { 

     getMenuInflater().inflate(R.menu.menu, menu); 
     SearchManager searchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE); 
     mSearchView = (SearchView) menu.findItem(R.id.action_search).getActionView(); 
     mSearchView.setSearchableInfo(
       searchManager.getSearchableInfo(getComponentName())); 


     mSearchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() { 
      @Override 
      public boolean onQueryTextSubmit(String query) { 
       return false; 
      } 


      @Override 
      public boolean onQueryTextChange(String newText) { 
       String query = newText.toLowerCase(); 
       mResults = mRealm.where(NoteModel.class).contains("mNoteTitle", query, Case.INSENSITIVE).findAllSorted("mNoteDateTime"); 
       mNoteAdapter.update(mResults); 
       return false; 

      } 
     }); 

     return true; 

    } 

    @Override 
    protected void onStop() { 
     super.onStop(); 
     resetSearchView(); 
    } 

    @Override 
    public void onBackPressed() { 
     super.onBackPressed(); 
     resetSearchView(); 
    } 

    private void resetSearchView() { 
     mSearchView.clearFocus(); 
     mSearchView.setQuery("", false); 
     mSearchView.setFocusable(false); 
     mSearchView.onActionViewCollapsed(); 
    } 


} 

조각 : 당신이 조각을 추가 할 필요가 어디

package com.example.note.pankajpc.note; 

import android.os.Bundle; 
import android.support.annotation.Nullable; 
import android.support.v4.app.Fragment; 
import android.view.LayoutInflater; 
import android.view.View; 
import android.view.ViewGroup; 

/** 
* Created by Pankaj PC on 01-08-2017. 
*/ 

public class TestFragment extends Fragment { 

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

Answer 1

당신은 FrameLayout이 될, 그 요구를 당신의 조각을 저장할의 LinearLayout를 사용할 수 없습니다

이것은 내 탐색 서랍을 항상 설정하는 방법입니다.

<?xml version="1.0" encoding="utf-8"?> 
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:app="http://schemas.android.com/apk/res-auto" 
    xmlns:tools="http://schemas.android.com/tools" 
    android:id="@+id/drawer_layout" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:fitsSystemWindows="true" 
    tools:openDrawer="start"> 

    <RelativeLayout 
     android:layout_width="wrap_content" 
     android:layout_height="match_parent"> 

     <android.support.design.widget.AppBarLayout 
      android:id="@+id/appbar_layout" 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:orientation="vertical" 
      android:theme="@style/AppTheme.AppBarOverlay"> 

      <android.support.v7.widget.Toolbar 
       android:id="@+id/toolbar" 
       android:layout_width="match_parent" 
       android:layout_height="?attr/actionBarSize" /> 
     </android.support.design.widget.AppBarLayout> 

     <FrameLayout 
      android:id="@+id/fragment_container" 
      android:layout_width="match_parent" 
      android:layout_height="match_parent" 
      android:layout_below="@+id/appbar_layout" /> 
    </RelativeLayout> 

    <android.support.design.widget.NavigationView 
     android:id="@+id/nav_view" 
     android:layout_width="wrap_content" 
     android:layout_height="match_parent" 
     android:layout_gravity="start" 
     android:fitsSystemWindows="true" 
     app:headerLayout="@layout/nav_header_main" 
     app:menu="@menu/activity_main_drawer" /> 

</android.support.v4.widget.DrawerLayout>