Manuelles Hinzufügen eines Symbols in der Navigationsleiste

Question

Ich vermisse es, neben dem Titel in der Navigationsleiste ein Symbol hinzuzufügen, weiß jemand, wie man das macht? im Anschluss an diese lik für erstellen eine nav Schublade here,

dies mein Code

FragmentDrawer.java

public class FragmentDrawer extends Fragment { 

    private static String TAG = FragmentDrawer.class.getSimpleName(); 

    private RecyclerView recyclerView; 
    private ActionBarDrawerToggle mDrawerToggle; 
    private DrawerLayout mDrawerLayout; 
    private NavigationDrawerAdapter adapter; 
    private View containerView; 
    private static String[] titles = null; 
    private FragmentDrawerListener drawerListener; 

    public FragmentDrawer() { 

    } 

    public void setDrawerListener(FragmentDrawerListener listener) { 
     this.drawerListener = listener; 
    } 

    public static List<NavDrawerItem> getData() { 
     List<NavDrawerItem> data = new ArrayList<>(); 



     // preparing navigation drawer items 
     for (int i = 0; i < titles.length; i++) { 
      NavDrawerItem navItem = new NavDrawerItem(); 
      navItem.setTitle(titles[i]); 
      data.add(navItem); 
     } 
     return data; 

    } 

    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 

     // drawer labels 
     titles = getActivity().getResources().getStringArray(R.array.nav_drawer_labels); 
    } 

    @Override 
    public View onCreateView(LayoutInflater inflater, ViewGroup container, 
          Bundle savedInstanceState) { 
     // Inflating view layout 
     View layout = inflater.inflate(R.layout.fragment_navigation_drawer, container, false); 
     recyclerView = (RecyclerView) layout.findViewById(R.id.drawerList); 

     adapter = new NavigationDrawerAdapter(getActivity(), getData()); 
     recyclerView.setAdapter(adapter); 
     recyclerView.setLayoutManager(new LinearLayoutManager(getActivity())); 
     recyclerView.addOnItemTouchListener(new RecyclerTouchListener(getActivity(), recyclerView, new ClickListener() { 
      @Override 
      public void onClick(View view, int position) { 
       drawerListener.onDrawerItemSelected(view, position); 
       mDrawerLayout.closeDrawer(containerView); 
      } 

      @Override 
      public void onLongClick(View view, int position) { 

      } 
     })); 

     return layout; 
    } 


    public void setUp(int fragmentId, DrawerLayout drawerLayout, final Toolbar toolbar) { 
     containerView = getActivity().findViewById(fragmentId); 
     mDrawerLayout = drawerLayout; 
     mDrawerToggle = new ActionBarDrawerToggle(getActivity(), drawerLayout, toolbar, R.string.drawer_open, R.string.drawer_close) { 
      @Override 
      public void onDrawerOpened(View drawerView) { 
       super.onDrawerOpened(drawerView); 
       getActivity().invalidateOptionsMenu(); 
      } 

      @Override 
      public void onDrawerClosed(View drawerView) { 
       super.onDrawerClosed(drawerView); 
       getActivity().invalidateOptionsMenu(); 
      } 

      @Override 
      public void onDrawerSlide(View drawerView, float slideOffset) { 
       super.onDrawerSlide(drawerView, slideOffset); 
       toolbar.setAlpha(1 - slideOffset/2); 
      } 
     }; 

     mDrawerLayout.setDrawerListener(mDrawerToggle); 
     mDrawerLayout.post(new Runnable() { 
      @Override 
      public void run() { 
       mDrawerToggle.syncState(); 
      } 
     }); 

    } 

    public static interface ClickListener { 
     public void onClick(View view, int position); 

     public void onLongClick(View view, int position); 
    } 

    static class RecyclerTouchListener implements RecyclerView.OnItemTouchListener { 

     private GestureDetector gestureDetector; 
     private ClickListener clickListener; 

     public RecyclerTouchListener(Context context, final RecyclerView recyclerView, final ClickListener clickListener) { 
      this.clickListener = clickListener; 
      gestureDetector = new GestureDetector(context, new GestureDetector.SimpleOnGestureListener() { 
       @Override 
       public boolean onSingleTapUp(MotionEvent e) { 
        return true; 
       } 

       @Override 
       public void onLongPress(MotionEvent e) { 
        View child = recyclerView.findChildViewUnder(e.getX(), e.getY()); 
        if (child != null && clickListener != null) { 
         clickListener.onLongClick(child, recyclerView.getChildPosition(child)); 
        } 
       } 
      }); 
     } 

     @Override 
     public boolean onInterceptTouchEvent(RecyclerView rv, MotionEvent e) { 

      View child = rv.findChildViewUnder(e.getX(), e.getY()); 
      if (child != null && clickListener != null && gestureDetector.onTouchEvent(e)) { 
       clickListener.onClick(child, rv.getChildPosition(child)); 
      } 
      return false; 
     } 

     @Override 
     public void onTouchEvent(RecyclerView rv, MotionEvent e) { 
     } 

     @Override 
     public void onRequestDisallowInterceptTouchEvent(boolean disallowIntercept) { 

     } 


    } 

    public interface FragmentDrawerListener { 
     public void onDrawerItemSelected(View view, int position); 
    } 
} 

string.xml

<string name="nav_item_home">Home</string> 
<string name="nav_item_friends">Friends</string> 
<string name="nav_item_notifications">Messages</string> 
<string name="nav_item_calculator">BMI Calculator</string> 
<string name="nav_item_listview">Test Json</string> 
<string name="nav_item_testabs">Test Tabs</string> 


<!-- navigation drawer item labels --> 
<string-array name="nav_drawer_labels"> 
    <item>@string/nav_item_home</item> 
    <item>@string/nav_item_friends</item> 
    <item>@string/nav_item_notifications</item> 
    <item>@string/nav_item_calculator</item> 
    <item>@string/nav_item_listview</item> 
    <item>@string/nav_item_testabs</item> 
</string-array> 

<array name="nav_drawer_icons"> 
    <item>@drawable/arm1</item> 
    <item>@drawable/abs2</item> 
    <item>@drawable/back</item> 
    <item>@drawable/leg</item> 
    <item>@drawable/shoulder</item> 
    <item>@drawable/achest</item> 
</array> 

MainActivity.java

private void displayView(int position) { 
    Fragment fragment = null; 
    String title = getString(R.string.app_name); 
    switch (position) { 
     case 0: 
      fragment = new HomeFragment(); 
      title = getString(R.string.nav_item_home); 
      break; 
     case 1: 
      fragment = new FriendsFragment(); 
      title = getString(R.string.nav_item_friends); 
      break; 
     case 2: 
      fragment = new MessagesFragment(); 
      title = getString(R.string.nav_item_notifications); 
      break; 
     case 3: 
      fragment = new CalculatorFragment(); 
      title = getString(R.string.nav_item_calculator); 
      break; 
     case 4: 
      fragment = new MovieFragment(); 
      title = getString(R.string.nav_item_listview); 
      break; 
     case 5: 
      fragment = new TabFragment(); 
      title = getString(R.string.nav_item_testabs); 
     default: 
      break; 
    } 

    if (fragment != null) { 
     FragmentManager fragmentManager = getSupportFragmentManager(); 
     FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction(); 
     fragmentTransaction.replace(R.id.container_body, fragment); 
     fragmentTransaction.commit(); 

     // set the toolbar title 
     getSupportActionBar().setTitle(title); 
    } 
} 

NavDrawwerItem.java

public class NavDrawerItem { 
private boolean showNotify; 
private String title; 
private int icon; 

public NavDrawerItem() { 

} 

public NavDrawerItem(boolean showNotify, String title, int icon) { 
    this.showNotify = showNotify; 
    this.title = title; 
    this.icon = icon; 
} 

public boolean isShowNotify() { 
    return showNotify; 
} 

public void setShowNotify(boolean showNotify) { 
    this.showNotify = showNotify; 
} 

public String getTitle() { 
    return title; 
} 

public int getIcon(){ 
    return this.icon; 
} 

public void setTitle(String title) { 
    this.title = title; 
} 

public void setIcon(int icon){ 
    this.icon = icon; 
} 

Answer 1

Sie benötigen Bildansicht in Ihrem drawerlist xml hinzuzufügen und Ihren Adapter benutzerdefinierte zu machen und Ihre Symbole gesetzt,

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" > 

    <ImageView 
    android:id="@+id/drawer_item_icon" 
    android:layout_width="wrap_content" 
    android:layout_height="match_parent" 
    android:layout_marginLeft="10sp" 
    android:layout_marginRight="10sp" 
    android:src="@drawable/ic_launcher" /> 

    <TextView 
    android:id="@+id/title" 
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:textSize="25sp" 
    android:paddingTop="8sp" 
    android:paddingBottom="8sp" 
    android:paddingLeft="15sp" /> 

</LinearLayout>