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RecylcerView in a Navigation Drawer Fragment not able to detect touch events

I'm trying to implement a Navigation drawer that uses a RecyclerView within a Fragment. Everything works fine except detecting the touch events. None of the touches are detected, neither in the RecyclerView touch listener nor the ViewHolder's touch listener.
I know that this approach might be outdated compared to using NavigationView from the new material design guidelines but I'd still like to know what I'm doing wrong here.
All help appreciated!
DrawerFragment:
public class DrawerFragment extends Fragment {
private DrawerAdapter mDrawerAdapter;
private RecyclerView mDrawerList;
private FragmentDrawerListener mDrawerListener;
private ActionBarDrawerToggle mDrawerToggle;
private DrawerLayout mDrawerLayout;
private Context mContext;
private View mContainerView;
public DrawerFragment(){
}
public interface FragmentDrawerListener {
public void onDrawerItemSelected(View view, int position);
}
public void setDrawerListener(FragmentDrawerListener listener) {
this.mDrawerListener = listener;
}
private List<DrawerItem> getDrawerItems(){
List<DrawerItem> drawerItems = new ArrayList<>();
String[] titles = mContext.getResources().getStringArray(R.array.nav_drawer_items);
TypedArray icons = mContext.getResources().obtainTypedArray(R.array.nav_drawer_icons);
for (int i = 0; i < titles.length; i++) {
DrawerItem drawerItem = new DrawerItem(titles[i],icons.getResourceId(i, -1));
drawerItems.add(drawerItem);
}
return drawerItems;
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mContext = getActivity();
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View layout = inflater.inflate(R.layout.drawer_layout,container,false);
mDrawerList = (RecyclerView) layout.findViewById(R.id.drawer_list);
mDrawerAdapter = new DrawerAdapter(getActivity(),getDrawerItems());
mDrawerList.setAdapter(mDrawerAdapter);
mDrawerList.setLayoutManager(new LinearLayoutManager(getActivity()));
mDrawerList.addOnItemTouchListener(new RecyclerTouchListener(getActivity(), mDrawerList,new ClickListener() {
#Override
public void onClick(View view, int position) {
mDrawerListener.onDrawerItemSelected(view, position);
mDrawerLayout.closeDrawer(mContainerView);
}
#Override
public void onLongClick(View view, int position) {
}
}));
return layout;
}
public void setUp(int fragmentId, DrawerLayout drawerLayout, final Toolbar toolbar) {
mContainerView = 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) {
}
}
}
Activity:
public class MainActivity extends AppCompatActivity implements DrawerFragment.FragmentDrawerListener {
private static final String TAG = "MainActivity";
private Toolbar mToolbar;
private DrawerFragment mDrawerFragment;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
initToolbar();
initDrawer();
}
private void initToolbar() {
mToolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(mToolbar);
getSupportActionBar().setHomeAsUpIndicator(R.drawable.ic_menu);
getSupportActionBar().setDisplayShowHomeEnabled(true);
}
private void initDrawer() {
mDrawerFragment = (DrawerFragment)
getSupportFragmentManager().findFragmentById(R.id.fragment_navigation_drawer);
mDrawerFragment.setUp(R.id.fragment_navigation_drawer, (DrawerLayout) findViewById(R.id.drawer_layout), mToolbar);
mDrawerFragment.setDrawerListener(this);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
#Override
public void onDrawerItemSelected(View view, int position) {
Log.i(TAG,"Stuff selected!");
}
}
Adapter:
public class DrawerAdapter extends RecyclerView.Adapter<DrawerAdapter.DrawerItemHolder> {
private Context mContext;
private List<DrawerItem> mDrawerItems;
public DrawerAdapter(Context context, List<DrawerItem> drawerItems) {
this.mContext = context;
this.mDrawerItems = drawerItems;
}
#Override
public DrawerItemHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = LayoutInflater.from(mContext).inflate(R.layout.nav_item,parent,false);
DrawerItemHolder drawerItemHolder = new DrawerItemHolder(view);
return drawerItemHolder;
}
#Override
public void onBindViewHolder(DrawerItemHolder holder, int position) {
holder.mTitle.setText(mDrawerItems.get(position).getTitle());
holder.mIcon.setImageResource(mDrawerItems.get(position).getIcon());
}
#Override
public int getItemCount() {
return mDrawerItems.size();
}
static class DrawerItemHolder extends RecyclerView.ViewHolder {
TextView mTitle;
ImageView mIcon;
public DrawerItemHolder(View itemView) {
super(itemView);
mTitle = (TextView) itemView.findViewById(R.id.title);
mIcon = (ImageView) itemView.findViewById(R.id.icon);
}
}
}
Layout file:
<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"
tools:context=".MainActivity">
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:orientation="vertical">
<include
android:id="#+id/toolbar"
layout="#layout/tool_bar"/>
<FrameLayout
android:id="#+id/frame"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
</LinearLayout>
<fragment
android:id="#+id/fragment_navigation_drawer"
android:name="com.raicky.example.ui.fragments.DrawerFragment"
android:layout_width="#dimen/nav_drawer_width"
android:layout_height="match_parent"
android:layout_marginTop="#dimen/abc_action_bar_default_height_material"
android:layout_gravity="start"
app:layout="#layout/drawer_layout"
tools:layout="#layout/drawer_layout" />
<FrameLayout
android:id="#+id/fragment_container"
android:layout_width="match_parent"
android:layout_height="match_parent"/>

How to change Navigation drawer launcher icon color in Android

I want to change navigation drawer launcher default icon . I want to set custom icon how can i do that please help.
Above picture indicates three white line stacked on top of one another in the toolbar, i want to change this icon.
Here is my 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;
private HashMap<String,String> category = new HashMap<>();
private List<String> cat_array = new ArrayList<>();
private static String[] mainTitle = null ;
private ImageView iicon;
public FragmentDrawer() {
}
public void setDrawerListener(FragmentDrawerListener listener) {
this.drawerListener = listener;
}
public static List<NavDrawerItem> getData() {
List<NavDrawerItem> data = new ArrayList<>();
// Log.d("who","1");
// preparing navigation drawer items
for (int i = 0; i <1; i++) {
NavDrawerItem navItem = new NavDrawerItem();
navItem.setTitle(titles[i]);
data.add(navItem);
}
return data;
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Log.d("who", "2");
// new HomeMenu().execute("http://opencart.codeniques.com/shopping/?route=feed/web_api/hmenu&key=test123$");
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);
iicon = (ImageView)layout.findViewById(R.id.iicon);
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);
}
}
I am new to android development please help me.

Try this
<style name="MyTheme" parent="Theme.AppCompat">
<item name="drawerArrowStyle">#style/MyDrawerArrowToggle</item>
</style>
<style name="MyDrawerArrowToggle" parent="Widget.AppCompat.DrawerArrowToggle">
<item name="color">#color/your_color</item>
</style>

ActionBar color is changed when drawer opened. How to stop it?

When Drawer open Action bar color is getting light. Below are the images.
I want same color for action bar when drawer open and drawer code.
Any suggestion???
Here is image link:
[1]: http://i.stack.imgur.com/sAwys.png
[2]: http://i.stack.imgur.com/YnPUu.png
below is the Code I have used recycler view here :
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);
}
}

How to Create Multi-Level menus in navigation drawer layout

I want to create Multi-Level Menus in drawer Layout. My Activity.xml:-
<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">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<LinearLayout
android:id="#+id/container_toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<include
android:id="#+id/toolbar"
layout="#layout/toolbar" />
</LinearLayout>
<FrameLayout
android:id="#+id/container_body"
android:layout_width="fill_parent"
android:layout_height="0dp"
android:layout_weight="1" />
</LinearLayout>
<fragment
android:id="#+id/fragment_navigation_drawer"
android:name="com.android.ShoppingMazza.activity.FragmentDrawer"
android:layout_width="#dimen/nav_drawer_width"
android:layout_height="match_parent"
android:layout_gravity="start"
app:layout="#layout/fragment_navigation_drawer"
tools:layout="#layout/fragment_navigation_drawer" />
Here My fragment_navigation_drawer.xml:-
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#android:color/white">
<android.support.v7.widget.RecyclerView
android:id="#+id/drawerList"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="15dp" />
Here My 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);
}
}
Here My MainActivity.java:-
public class MainActivity extends AppCompatActivity implements FragmentDrawer.FragmentDrawerListener {
private static String TAG = MainActivity.class.getSimpleName();
private Toolbar mToolbar;
private FragmentDrawer drawerFragment;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mToolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(mToolbar);
getSupportActionBar().setDisplayShowHomeEnabled(true);
drawerFragment = (FragmentDrawer)
getSupportFragmentManager().findFragmentById(R.id.fragment_navigation_drawer);
drawerFragment.setUp(R.id.fragment_navigation_drawer, (DrawerLayout) findViewById(R.id.drawer_layout), mToolbar);
drawerFragment.setDrawerListener(this);
// display the first navigation drawer view on app launch
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.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();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
if(id == R.id.action_search){
Toast.makeText(getApplicationContext(), "Search action is selected!", Toast.LENGTH_SHORT).show();
return true;
}
return super.onOptionsItemSelected(item);
}
#Override
public void onDrawerItemSelected(View view, int position) {
displayView(position);
}
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.title_home);
break;
case 1:
fragment = new FriendsFragment();
title = getString(R.string.title_friends);
break;
case 2:
fragment = new MessagesFragment();
title = getString(R.string.title_messages);
break;
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);
}
}
}
My Current View of App below:-
but i want multi-level submenus (more than 3) in Home menu.
I am new in android developing help me. Thanks in advance

You can simply use Android TreeView Library.
Reference: https://github.com/bmelnychuk/AndroidTreeView
And if you just need three levels, you can create a threelevel custom expandable listview.
Reference: https://github.com/talhahasanzia/Three-Level-Expandable-Listview

You can use ExpandableListView instead of RecyclerView. Here is a nice tutorial to implement it.
Expandable ListView
And if you really want to use RecyclerView you can look at the following library:
Expandable RecyclerView

Error on Fragment?

Hello everyone I am developing an android app and I am new to this development.
I am facing on error which says:
Error:(134, 19) error: RecyclerTouchListener is not abstract and does not override abstract method onRequestDisallowInterceptTouchEvent(boolean) in OnItemTouchListener
Here is my code from where the above error appears
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) {
}
}
/* public void myClickMethod(View v) {
switch(v.getid()) {
// Just like you were doing
}
}*/
public interface FragmentDrawerListener {
public void onDrawerItemSelected(View view, int position);
}
MainActivity.java
public class MainActivity extends ActionBarActivity implements FragmentDrawer.FragmentDrawerListener {
private static String TAG = MainActivity.class.getSimpleName();
private CharSequence mDrawerTitle;
private ActionBar actionBar;
// used to store app title
private CharSequence mTitle;
private Toolbar mToolbar;
private FragmentDrawer drawerFragment;
private ActionBarDrawerToggle mDrawerToggle;
private Fragment fra;
// FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
View view;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ImageView myImage = (ImageView) findViewById(R.id.imageView);
myImage.setAlpha(50);
mToolbar = (Toolbar) findViewById(R.id.tool_bar1);
setSupportActionBar(mToolbar);
mToolbar.setNavigationIcon(R.drawable.logofinal);
mTitle = mDrawerTitle = getTitle();
/* getSupportActionBar().setDisplayShowHomeEnabled(true);
getSupportActionBar().setHomeButtonEnabled(false);*/
drawerFragment = (FragmentDrawer) getSupportFragmentManager().findFragmentById(R.id.fragment_navigation_drawer);
drawerFragment.setUp(R.id.fragment_navigation_drawer, (DrawerLayout) findViewById(R.id.drawer_layout), mToolbar);
drawerFragment.setDrawerListener(this);
/**
* Creating all buttons instances
* */
// Dashboard News feed button
/*Button btn_newsfeed = (Button)findViewById(R.id.btn_news_feed);
btn_newsfeed.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
switch(view.getId())
{
case R.id.btn_news_feed:
fra= new HomeFragment();
break;
}
}
});
Button btn_friends = (Button) findViewById(R.id.btn_events);
btn_friends.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
switch(view.getId())
{
case R.id.btn_events:
fra= new ContactFragment();
break;
}
}
});*/
// Dashboard Friends button
Button btn_newsfeed = (Button)findViewById(R.id.btn_news_feed);
Button btn_friends = (Button) findViewById(R.id.btn_friends);
// Dashboard Messages button
Button btn_messages = (Button) findViewById(R.id.btn_messages);
// Dashboard Places button
Button btn_places = (Button) findViewById(R.id.btn_places);
// Dashboard Events button
Button btn_events = (Button) findViewById(R.id.btn_events);
// Dashboard Photos button
Button btn_photos = (Button) findViewById(R.id.btn_photos);
//Button btn_Maps = (Button) findViewById(R.id.btn_maps);
/**
* Handling all button click events
* */
// Listening to News Feed button click*/
btn_friends.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
// Launching News Feed Screen
Intent i = new Intent(MainActivity.this, AboutActivity.class);
startActivity(i);
}
});
// Listening Friends button click
btn_newsfeed.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
// Launching News Feed Screen
Intent i = new Intent(MainActivity.this, HomeFragment.class);
startActivity(i);
}
});
// Listening Messages button click
btn_messages.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
// Launching News Feed Screen
Intent i = new Intent(MainActivity.this, MessagesFragment.class);
startActivity(i);
}
});
// Listening to Places button click
btn_places.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
// Launching News Feed Screen
Intent i = new Intent(MainActivity.this, FriendsFragment.class);
startActivity(i);
}
});
// Listening to Events button click
btn_events.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
// Launching News Feed Screen
Intent i = new Intent(MainActivity.this, CampusFragment.class);
startActivity(i);
}
});
// Listening to Photos button click
btn_photos.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
// Launching News Feed Screen
Intent i = new Intent(MainActivity.this, ContactFragment.class);
startActivity(i);
}
});
}
/* public void myClickmethod(View v) {
switch (v.getId()) {
case R.id.btn_news_feed:
Intent i = new Intent(MainActivity.this, HomeFragment.class);
startActivity(i);
break;
default:
break;
}
}*/
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
static class Adapter extends FragmentPagerAdapter {
private final List<Fragment> mFragments = new ArrayList<>();
private final List<String> mFragmentTitles = new ArrayList<>();
public Adapter(FragmentManager fm) {
super(fm);
}
public void addFragment(Fragment fragment, String title) {
mFragments.add(fragment);
mFragmentTitles.add(title);
}
#Override
public Fragment getItem(int position) {
return mFragments.get(position);
}
#Override
public int getCount() {
return mFragments.size();
}
#Override
public CharSequence getPageTitle(int position) {
return mFragmentTitles.get(position);
}
}
#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;
}
if(id == R.id.action_search){
Toast.makeText(getApplicationContext(), "Search action is selected!", Toast.LENGTH_SHORT).show();
return true;
}
return super.onOptionsItemSelected(item);
}
public void setTitle(CharSequence title) {
mTitle = title;
getSupportActionBar().setTitle(mTitle);
}
#Override
public void onDrawerItemSelected(View view, int position) {
displayView(position);
}
private void displayView(int position) {
Fragment fragment = null;
Intent intent;
String title = getString(R.string.app_name);
switch (position) {
case 0:
Intent i = new Intent(MainActivity.this, HomeFragment.class);
title = getString(R.string.title_home);
startActivity(i);
break;
case 1:
i = new Intent(MainActivity.this, FriendsFragment.class);
title = getString(R.string.title_friends);
startActivity(i);
break;
case 2:
Intent i2=new Intent(getApplicationContext(),MessagesFragment.class);
title = getString(R.string.title_messages);
startActivity(i2);
break;
/* case 3:
Intent i1 = new Intent(MainActivity.this, FriendsFragment.class);
startActivity(i1);
title = getString(R.string.title_department);
startActivity(i1);
break;*/
case 3:
i = new Intent(MainActivity.this, CampusFragment.class);
title = getString(R.string.title_campus_life);
startActivity(i);
break;
case 4:
i = new Intent(MainActivity.this, ContactFragment.class);
title = getString(R.string.title_contact);
startActivity(i);
break;
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);
}
}
public void onBackPressed() {
AlertDialog.Builder alertDlg = new AlertDialog.Builder(this);
alertDlg.setMessage("Are you sure you want to exit?");
alertDlg.setCancelable(false);
alertDlg.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
MainActivity.super.onBackPressed();
}
}
);
alertDlg.setNegativeButton("No", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
// We do nothing
}
});
alertDlg.create().show();
}
}
Would be grateful if anyone helps me.

It sounds like you just need to override the onRequestDisallowTouchEvent() method on your RecyclerTouchListener.
Try adding this within your RecyclerTouchListener class:
#Override
public void onRequestDisallowInterceptTouchEvent(boolean disallowIntercept) {
}
So.. your code should now look like this:
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 void onRequestDisallowInterceptTouchEvent(boolean disallowIntercept){
}
}
You can refer to this question for more info.
I hope this helps!

Your code is missing one method:
onRequestDisallowInterceptTouchEvent(boolean disallowIntercept)
See in: https://developer.android.com/reference/android/support/v7/widget/RecyclerView.OnItemTouchListener.html
Inside your RecyclerTouchListener class, you need to add this:
#Override
public void onRequestDisallowInterceptTouchEvent(boolean disallowIntercept) {
//Any desired code
}