ナビゲーションドローラーボタンが機能しない

Question

NavigationDrawerを設定しましたが、NavigationDrawerボタンが機能しません。

NavigationDrawerFragment.java

public class NavigationDrawerFragment extends Fragment { 


public static final String PREF_FILE_NAME="testpref"; 
public static final String USER_LEARNED_DRAWER="user_learned_drawer"; 

public ActionBarDrawerToggle mDrawerToggle; 
private DrawerLayout mDrawerLayout; 
private View containerView; 

//for disapper drawer when screen rotate 

private boolean mUserLearnedDrawer; 
private boolean mFromSavedInstanceState; 
public NavigationDrawerFragment() { 
    // Required empty public constructor 
} 

@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    mUserLearnedDrawer=Boolean.valueOf(readFromPreference(getActivity(),USER_LEARNED_DRAWER,"false")); 
    if (savedInstanceState!=null){ 
     mFromSavedInstanceState=true; 
    } 
} 

@Override 
public View onCreateView(LayoutInflater inflater, ViewGroup container, 
         Bundle savedInstanceState) { 
    // Inflate the layout for this fragment 
    return inflater.inflate(R.layout.fragment_navigation_drawer, container, false); 
} 

public void setUp(int fragmentId,DrawerLayout drawerlayout) { 

    containerView=getActivity().findViewById(fragmentId); 
    mDrawerLayout=drawerlayout; 
    mDrawerToggle=new ActionBarDrawerToggle(getActivity(),drawerlayout,R.string.drawer_open,R.string.drawer_close){ 

     @Override 
     public void onDrawerOpened(View drawerView) { 
      if (!mUserLearnedDrawer){ 
       mUserLearnedDrawer=true; 
       saveToPreference(getActivity(),PREF_FILE_NAME,mUserLearnedDrawer+""); 
      } 
      getActivity().invalidateOptionsMenu(); 
      super.onDrawerOpened(drawerView); 
     } 

     @Override 
     public void onDrawerClosed(View drawerView) { 

      getActivity().invalidateOptionsMenu(); 
      super.onDrawerClosed(drawerView); 
     } 
    }; 
    if (!mUserLearnedDrawer&& !mFromSavedInstanceState){ 
     mDrawerLayout.openDrawer(containerView); 
    } 

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

      mDrawerToggle.syncState(); 
     } 
    }); 
} 

public static void saveToPreference(Context context,String preferenceName,String preferenceValue){ 
    SharedPreferences sharedPreferences=context.getSharedPreferences(PREF_FILE_NAME,Context.MODE_PRIVATE); 
    SharedPreferences.Editor editor=sharedPreferences.edit(); 
    editor.putString(preferenceName,preferenceValue); 
    editor.apply(); 
} 
public static String readFromPreference(Context context, String preferenceName, String defaultValue){ 
    SharedPreferences sharedPreferences=context.getSharedPreferences(PREF_FILE_NAME,Context.MODE_PRIVATE); 
    return sharedPreferences.getString(preferenceName,defaultValue); 
} 
} 

MainActivity.java：

public class MainActivity extends AppCompatActivity { 

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

    getSupportActionBar().setDisplayHomeAsUpEnabled(true); 
    getSupportActionBar().setHomeButtonEnabled(true); 

    NavigationDrawerFragment drawerFragment = (NavigationDrawerFragment) 
      getSupportFragmentManager().findFragmentById(R.id.fragment_navigation); 
    drawerFragment.setUp(R.id.fragment_navigation,(DrawerLayout) findViewById(R.id.drawer_layout)); 

} 
} 

Answer 1

は、あなたのセットアップ方法の最後で、コードの以下の行を追加します。

mDrawerLayout.addDrawerListener(mDrawerToggle);