在菜单图标上未打开导航抽屉，在工具栏上单击

Question

I want to open drawer on menu icon click but it not work.see this image what i want to say....

Following code work for when we slide but not work for menu icon click.

Please check my problem and help me...

Thanks for your valuable time...

MainActicity.java

public class MainActivity extends AppCompatActivity implements
    FragmentDrawerListener {

private Toolbar toolbar;
private FragmentDrawer drawerFragment;

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

    toolbar = (Toolbar) findViewById(R.id.toolbar);
    toolbar.setNavigationIcon(getResources().getDrawable(R.drawable.ic_launcher));
    setSupportActionBar(toolbar);
    getSupportActionBar().setDisplayHomeAsUpEnabled(true);
     getSupportActionBar().setHomeButtonEnabled(true);
    drawerFragment = (FragmentDrawer) getSupportFragmentManager()
            .findFragmentById(R.id.fragment_navigation_drawer);
    drawerFragment.setUp(R.id.fragment_navigation_drawer,
            (DrawerLayout) findViewById(R.id.drawer_layout), toolbar);
    drawerFragment.setDrawerListener(this);
    displayView(0);
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.main, menu);
    return true;
}

@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();
    if (id == R.id.action_settings) {
        return true;
    } 
    return super.onOptionsItemSelected(item);
}

@Override
public void onDrawerItemSelected(View view, int position) {
    displayView(position);
}

FragmentDrawer.java

public class FragmentDrawer extends Fragment {

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

private static String[] titles = null;

private RecyclerView recyclerView;
private NavigationDrawerAdapter adapter;
private ActionBarDrawerToggle mDrawerToggle;
private DrawerLayout mDrawerLayout;
private FragmentDrawerListener drawerListener;
private View containerView;

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);
    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;
}

/**
 * 
 * @param fragmentId
 * @param drawerLayout
 * @param toolbar
 */
public void setUp(int fragmentId, DrawerLayout drawerLayout, final Toolbar toolbar) {

    containerView = getActivity().findViewById(fragmentId);
    mDrawerLayout = drawerLayout;
    mDrawerToggle = new ActionBarDrawerToggle(getActivity(), mDrawerLayout, R.string.drawer_open, R.string.drawer_close) {
        @Override
        public void onDrawerClosed(View drawerView) {
            super.onDrawerClosed(drawerView);
            getActivity().invalidateOptionsMenu();
        }
        @Override
        public void setToolbarNavigationClickListener(
                OnClickListener onToolbarNavigationClickListener) {
            // TODO Auto-generated method stub
            super.setToolbarNavigationClickListener(onToolbarNavigationClickListener);
            Log.i("RAJAT", "I am here");
        }

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

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

        @Override
        public boolean onOptionsItemSelected(MenuItem item) {
            Log.d("RAJAT", "click ON OPTION ITEM");
            if(mDrawerToggle.onOptionsItemSelected(item)) {
                Log.d("RAJAT", "click here");
                return true;
            }
            return super.onOptionsItemSelected(item);
        }

        @Override
        public void onConfigurationChanged(Configuration newConfig) {
            super.onConfigurationChanged(newConfig);
            mDrawerToggle.onConfigurationChanged(newConfig);
        }

    };

    mDrawerLayout.setDrawerListener(mDrawerToggle);
    mDrawerLayout.post(new Runnable() {
        @Override
        public void run() {
            // Sync the toggle state after onRestoreInstanceState has occurred.
            mDrawerToggle.syncState();
        }
    });
}

static class RecyclerTouchListener implements RecyclerView.OnItemTouchListener {

    private ClickListener clickListener;
    private GestureDetector gestureDetector;

    public RecyclerTouchListener(Context context, final RecyclerView recyclerView, final ClickListener clickListener) {
        // TODO Auto-generated constructor stub
        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 onRequestDisallowInterceptTouchEvent(boolean arg0) {

    }

    @Override
    public void onTouchEvent(RecyclerView arg0, MotionEvent arg1) {

    }

}

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

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

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

Answer 1

Try this block of code

@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.
     if (item.getItemId() == android.R.id.home) {
        if(mDrawerLayout.isDrawerOpen(Gravity.LEFT)) {
                        mDrawerLayout.closeDrawer(Gravity.LEFT);
                    }else{
                        mDrawerLayout.openDrawer(Gravity.LEFT);
                    }      

    }else if (item.getItemId()== R.id.action_settings) {
        return true;
    } 
    return super.onOptionsItemSelected(item);
}

Answer 2

  final DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
    ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
            this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
    drawer.setDrawerListener(toggle);
    toggle.syncState();