In my app I have created few buttons in one fragment which will redirect to several activity based on the click. Now if user click button1, they will get a floating context menu conataing the list of the comapny, such as company1, compan2...etc. I have followed this post Opening a floating menu (context menu) in Android? to develop this feature in my app. But the problem is that this code is implemented in Activity, where in my case I want ti implement it in Fragment. I wrote the code but nothig happen with the button click. Now how can I generate this menu on button click
My contextmenu is
<?xml version="1.0" encoding="utf-8"?>
<item android:id="#+id/company_1"
android:title="#string/company_1"></item>
<item android:id="#+id/company_2"
android:title="#string/company_2"></item>
<item android:id="#+id/company_3"
android:title="#string/company_3"></item>
<item android:id="#+id/company_4"
android:title="#string/company_4">
</item>
<item android:id="#+id/company_5"
android:title="#string/company_5"></item>
<item android:id="#+id/company_6"
android:title="#string/company_6">
</item>
My Fragment Class is
public class MainFragment extends Fragment implements View.OnClickListener{
public MainFragment() {
// Required empty public constructor
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_main, container, false);
Button button1=(Button) view.findViewById(R.id.button1);
button1.setOnClickListener(this);
registerForContextMenu(button);
Button button2=(Button) view.findViewById(R.id.button2);
button2.setOnClickListener(this);
Button button3=(Button) view.findViewById(R.id.button3);
button3.setOnClickListener(this);
// Inflate the layout for this fragment
return view;
}
#Override
public void onCreateContextMenu(ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
if(v.getId()==R.id.button1){
this.getActivity().getMenuInflater().inflate(R.menu.contextmenu_company,menu);
}
super.onCreateContextMenu(menu, v, menuInfo);
}
#Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
super.onCreateOptionsMenu(menu, inflater);
setHasOptionsMenu(true);
}
#Override
public boolean onContextItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.company_1:
Toast.makeText(getActivity().getApplicationContext(),"caompany1code",Toast.LENGTH_LONG).show();
return true;
case R.id.company_2:
......
case R.id.company_3:
.....
case R.id.company_4:
....
return true;
case R.id.company_5:
.....
return true;
case R.id.company_6:
.....
return true;
}
return super.onContextItemSelected(item);
}
#Override
public void onClick(View view) {
switch (view.getId()) {
case R.id.button1:
Toast.makeText(getActivity(),"My colleagues clicked", Toast.LENGTH_SHORT).show();
break;
case R.id.button2:
Toast.makeText(getActivity(), "News clicked", Toast.LENGTH_SHORT).show();
break;
case R.id.button3:
Toast.makeText(getActivity(), "Navigator clicked", Toast.LENGTH_SHORT).show();
break;
}
}
In MainActivity Class
public class MainActivity extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener {
NavigationView navigationView = null;
Toolbar toolbar = null;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//Set the fragment initially
MainFragment fragment = new MainFragment();
android.support.v4.app.FragmentTransaction fragmentTransaction =
getSupportFragmentManager().beginTransaction();
fragmentTransaction.replace(R.id.fragment_container, fragment);
fragmentTransaction.commit();
toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
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();
navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
}
#Override
public void onBackPressed() {
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
if (drawer.isDrawerOpen(GravityCompat.START)) {
drawer.closeDrawer(GravityCompat.START);
} else {
super.onBackPressed();
}
}
#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;
}
return super.onOptionsItemSelected(item);
}
#SuppressWarnings("StatementWithEmptyBody")
#Override
public boolean onNavigationItemSelected(MenuItem item) {
.....
}
Well i found something here :
Try this in your fragment :
#Override
public void onCreateContextMenu(ContextMenu menu, View v,ContextMenu.ContextMenuInfo menuInfo) {
if(v.getId()==R.id.button1{getActivity().getMenuInflater().inflate(R.menu.contextmenu_company,menu);
}
}
You are also calling this wrong:
//Instead of button use button1.
registerForContextMenu(button1);
Maybe this will help.
You did use
onCreateOptionsMenu(Menu menu)
in your Activity but you are trying to use
onCreateContextMenu(ContextMenu menu, View v,
ContextMenu.ContextMenuInfo menuInfo)
in your fragment.
Use onCreateOptionsMenu(Menu menu) in your fragment as well and set setHasOptionsMenu(true) in your onCreateView method.
Related
Basically my project have to have different toolbars, one for each fragment switched by the bottom navigation bar.
The fragment toolbars items are clickable, when I long press, shows the title item etc, but they don't perform the action. For example, When I set to show a toast when click on that item, he'll not perform. Any Suggestion? Thanks.
public class FeedFragment extends Fragment {
public static final String TAG = "Tag Free";
DialogFragment mDialog;
FloatingActionButton fab;
RevealFrameLayout reveal;
FrameLayout frame;
private ConstraintLayout layoutDialog;
boolean isOpen = false;
public FeedFragment() {
// Required empty public constructor
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setHasOptionsMenu(true);
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_feed, container, false);
/** Toolbar **/
Toolbar myToolbar = (Toolbar) view.findViewById(R.id.my_toolbar);
((AppCompatActivity) getActivity()).setSupportActionBar(myToolbar);
ActionBar ab = ((AppCompatActivity) getActivity()).getSupportActionBar();
ab.setDisplayHomeAsUpEnabled(false);
// navigation bottom
fab = getActivity().findViewById(R.id.fab_button);
fab.setImageDrawable(getResources().getDrawable(R.drawable.ic_pencil_black_24dp));
fab.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
FragmentTransaction ft = getFragmentManager().beginTransaction().setCustomAnimations(R.anim.hold, R.anim.slide_down);
Fragment prev = getFragmentManager().findFragmentByTag("dialog");
if (prev != null) {
ft.remove(prev);
}
ft.addToBackStack(null);
DialogFragment dialogFragment = new PostDialog();
dialogFragment.show(ft, "dialog");
dialogFragment.setStyle(DialogFragment.STYLE_NORMAL, R.style.DialogFragmentTheme);
}
});
return view;
}
#Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
inflater.inflate(R.menu.appbar_feed, menu);super.onCreateOptionsMenu(menu, inflater);
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.action_personProfile:
Toast.makeText(getActivity(),"not responding",Toast.LENGTH_SHORT).show();
Intent intent = new Intent(getActivity(), MyUserProfileActivity.class);
startActivity(intent);
return true;
case R.id.action_settings:
Toast.makeText(getActivity(),"not responding",Toast.LENGTH_SHORT).show();
return true;
default:
// If we got here, the user's action was not recognized.
// Invoke the superclass to handle it.
return super.onOptionsItemSelected(item);
}
}
}
You are not chaining to the superclass in the activity methods.
Refactor your code as below :
#Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
inflater.inflate(R.menu.appbar_feed, menu);
super.onCreateOptionsMenu(menu, inflater);
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.action_personProfile:
Toast.makeText(getActivity(),"not responding",Toast.LENGTH_SHORT).show();
Intent intent = new Intent(getActivity(), MyUserProfileActivity.class);
startActivity(intent);
break;
case R.id.action_settings:
Toast.makeText(getActivity(),"not responding",Toast.LENGTH_SHORT).show();
break;
default:
// If we got here, the user's action was not recognized.
// Invoke the superclass to handle it.
break;
}
return super.onOptionsItemSelected(item);
}
Hope now your code will work fine.
I searched all day through all similar question and answers, here in stackoverflow, but found no clue why it doesn't work
here some excerpts from my code
Fragment:
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
rootView = inflater.inflate(R.layout.fragment_gallery, container, false);
setHasOptionsMenu(true);
actionBar = ((AppCompatActivity)getActivity()).getSupportActionBar();
actionBar.setTitle("Portfolio");
updateGallery();
return rootView;
}
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
super.onCreateOptionsMenu(menu, inflater);
}
public void updateGallery() {
if (activeAlbum>0) {
actionBar.setDisplayHomeAsUpEnabled(true);
} else {
actionBar.setDisplayHomeAsUpEnabled(false);
}
......
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
default:
break;
}
return false;
}
MainActivity:
public class MainActivity extends AppCompatActivity {...}
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
....
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.addDrawerListener(toggle);
toggle.syncState();
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
......
}
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;
}
return super.onOptionsItemSelected(item);
}
onOptionsItemSelected is fired neither in MainActivity nor in Fragment
Fragments have to declare that they can provide options. Have a look here:
https://developer.android.com/reference/android/app/Fragment.html#setHasOptionsMenu(boolean)
I think you just need to call setHasOptionsMenu(true) in the onCreateView() of your Fragment.
I implemented NavigationView inside MainActivity. MainActivity contains Fragment container .By default HomeFragment is inside this container. Then I add another Fragment(SecondFragment) in this container. Now the hamburger icon should be changed to back navigation icon (back arrow icon) ,clicking on this should go to previous fragment.But now clicking on home button(back arrow icon) opens Navigation Drawer. This is my MainActivity`
public class MainActivity extends AppCompatActivity {
private Toolbar toolbar;
private NavigationView navigationView;
private DrawerLayout drawerLayout;
ActionBarDrawerToggle actionBarDrawerToggle;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
navigationView = (NavigationView) findViewById(R.id.navigation_view);
navigationView.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener() {
#Override
public boolean onNavigationItemSelected(MenuItem menuItem) {
if (menuItem.isChecked()) menuItem.setChecked(false);
else menuItem.setChecked(true);
drawerLayout.closeDrawers();
switch (menuItem.getItemId()) {
default:
Toast.makeText(getApplicationContext(), "Nothing", Toast.LENGTH_SHORT).show();
return true;
}
}
});
drawerLayout = (DrawerLayout) findViewById(R.id.drawer);
actionBarDrawerToggle = new ActionBarDrawerToggle(this, drawerLayout,toolbar, R.string.openDrawer, R.string.closeDrawer) {
#Override
public void onDrawerClosed(View drawerView) {
super.onDrawerClosed(drawerView);
}
#Override
public void onDrawerOpened(View drawerView) {
super.onDrawerOpened(drawerView);
}
};
drawerLayout.setDrawerListener(actionBarDrawerToggle);
actionBarDrawerToggle.syncState();
}
#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;
}
if (id == android.R.id.home) {
return false;
}
return super.onOptionsItemSelected(item);
}}
`
And This is my SecondFragment code `
public class SecondFragment extends Fragment {
TextView inbox;
#Nullable
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.second_fragment, container, false);
((AppCompatActivity) getActivity()).getSupportActionBar().setDisplayHomeAsUpEnabled(true);
setHasOptionsMenu(true);
return v;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
int id = item.getItemId();
if (id == android.R.id.home) {
Log.e("backIcon", "backIcon");
return true;
}
return super.onOptionsItemSelected(item);
}}
`
You can handle with KeyCode:
#Override
public void onResume() {
super.onResume();
getView().setFocusableInTouchMode(true);
getView().requestFocus();
getView().setOnKeyListener(new View.OnKeyListener() {
#Override
public boolean onKey(View v, int keyCode, KeyEvent event) {
if (event.getAction() == KeyEvent.ACTION_UP && keyCode == KeyEvent.KEYCODE_BACK){
// handle back button
return true;
}
return false;
}
});
}
OR
You need to fetch id of onOptionsItemSelected item.
So according to that you can decide back press.
I know this question has been asked and but I am unable to solve my problem after looking at those answer. I have an Activity with a Fragment.
In fragment, I have added the toolbar and I want to handle toolbar menu item click events from the fragments.
In menu, I have added a single share button. I am getting the click event callback for the Up navigation (arrow home button) but I am not getting click event callback for the share button in my fragment.
Can some points me at what I am doing wrong here.
menu.xml
<menu 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"
tools:context="com.rahul.haridasasampada.details.DescriptionActivity">
<item
android:id="#+id/action_share"
android:title="Share"
android:orderInCategory="100"
app:showAsAction="always"
app:actionProviderClass="android.support.v7.widget.ShareActionProvider"/>
</menu>
I have added toolbar to the fragment layout.
My Activity's code -
public class DescriptionActivity extends ActionBarActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_description);
if (savedInstanceState == null) {
Article articleExtra = (Article) getIntent().getParcelableExtra(DescriptionFragment.ARGS_EXTRA);
DescriptionFragment descriptionFragment = DescriptionFragment.newInstance(articleExtra);
getSupportFragmentManager().beginTransaction()
.add(R.id.container, descriptionFragment)
.commit();
}
}
#Override
protected void onResume() {
super.onResume();
getSupportActionBar().setTitle(R.string.app_name_in_kannada);
}
#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_description, menu);
Log.d("debug", "activity : onCreateOptionsMenu");
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()){
case android.R.id.home:
Log.d("debug","activity: action home has clicked");
onBackPressed();
return false;
case R.id.action_share:
Log.d("debug","activity: action share has clicked");
return false;
}
return super.onOptionsItemSelected(item);
}
}
My Fragments code -
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setHasOptionsMenu(true);
// some code
}
#Override
public void onActivityCreated(#Nullable Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
ActionBarActivity actionBarActivity = (ActionBarActivity) getActivity();
Toolbar toolbar = (Toolbar) getView().findViewById(R.id.toolbar_actionbar);
actionBarActivity.setSupportActionBar(toolbar);
toolbar.setOnMenuItemClickListener(this);
toolbar.inflateMenu(R.menu.menu_description);
}
#Override
public boolean onMenuItemClick(MenuItem menuItem) {
switch (menuItem.getItemId()) {
case R.id.action_share:
if (menuItem.getItemId() == R.id.action_share)
Log.d("debug","action share has clicked");
return true;
}
return false;
}
#Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
super.onCreateOptionsMenu(menu, inflater);
Log.d("debug", "fragment : onCreateOptionsMenu");
MenuItem shareMenuItem = menu.findItem(R.id.action_share);
mShareActionProvider =(ShareActionProvider)MenuItemCompat.getActionProvider(shareMenuItem);
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()){
case android.R.id.home:
Log.d("debug","fragment : action home has clicked");
return true;
case R.id.action_share:
Log.d("debug","fragment: action share has clicked");
return true;
}
return super.onOptionsItemSelected(item);
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View detailFragmentView = inflater.inflate(R.layout.fragment_description, null);
return detailFragmentView;
}
From Android Docs, for Fragment:
public void onCreateOptionsMenu (Menu menu, MenuInflater inflater)
Initialize the contents of the Activity's standard options menu. You should place your menu items in to menu. For this method to be called, you must have first called setHasOptionsMenu(boolean).
so you want to control actionbar menu in Fragment, then you have to call setHasOptionsMenu method better in Fragment's onCreate(...):
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setHasOptionsMenu(true);
}
also important is that you should not use inflateMenu and onCreateOptionsMenu both together for same ToolBar, inflateMenu is for standalone without setting ToolBar as ActionBar.
Suggestion:
keep one ToolBar in Activity as ActionBar for your App, and another ToolBar standalone inside Fragment.
Hope this help!
import android.support.v7.widget.Toolbar;
import android.view.MenuItem;
public class MyFragment extends Fragment implements Toolbar.OnMenuItemClickListener {
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_list, container, false);
Toolbar toolbar= (Toolbar) getActivity().findViewById(R.id.toolbar);
toolbar.inflateMenu(R.menu.menu_main);
toolbar.setOnMenuItemClickListener(this);
return rootView;
}
#Override
public boolean onMenuItemClick(MenuItem menuItem) {
switch (menuItem.getItemId()) {
case R.id.action_menu:
//do sth here
return true;
}
return false;
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState)
{
View v = inflater.inflate(R.layout.training1_fragment, container,
false);
setHasOptionMenu(true);
return v;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.action_save :
{
//Write here what to do you on click
return true;
}
}
return super.onOptionsItemSelected(item);
}
You should getPointer toolbar from your activity class and inflate menu in fragment class.
You can look this ex:
#Override
public void onActivityCreated(#Nullable Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
activity = ((DescriptionActivity ) getActivity());
Toolbar tollbar=getView.findViewById(R.id.your_toolbar);
activity.setSupportActionBar(toolbar);
activity.toolbar.inflateMenu(R.menu.menu_search);
activity.toolbar.setOnMenuItemClickListener(this);
}
#Override
public boolean onMenuItemClick(MenuItem menuItem) {
switch (menuItem.getItemId()) {
case R.id.action_search:
break;
}
return false;
}
Please refer this for click of the Fragment optionMenu click link.
I have a MainActivity on that I have a navigation drawer,Lists of navigation drawers are fragments.
I want to have refresh button on one of my fragment,to add refresh button on action bar i added following code in my MainActivity
#Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.activity_main_actions, menu);
return super.onCreateOptionsMenu(menu);
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// toggle nav drawer on selecting action bar app icon/title
if (mDrawerToggle.onOptionsItemSelected(item)) {
return true;
}
if (item.getItemId() == R.id.action_settings) {
return true;
} else if(item.getItemId() == R.id.action_refresh) {
if(haveNetworkConnection(getApplicationContext()))
{
LoadAllProducts task = new LoadAllProducts(ListDepartmentSemesterActivity.this);
task.execute();
}else{
Toast.makeText(getApplicationContext(), "No Internet Connection", Toast.LENGTH_LONG).show();
}
return true;
}else {
return super.onOptionsItemSelected(item);
}
}
But the thing is on every fragment refresh button is visible and from any fragments i can refresh products,how to hide it on other fragments???
Navigation drawer MainActivity and Fragments share same action bar???
Define onOptionsItemSelected(MenuItem item) in fragment and add your refresh button to it. And insert this in your fragment:
#Override
public void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setHasOptionsMenu(true);
setRetainInstance(true);
}
if you want handle menu button in each fragment try this code
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.simple_calendar_view,
container, false);
// you code here
setHasOptionsMenu(true);
return rootView;
}
inside same fragment you want handle its menu item clicks
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.action_refresh:
// you Custom code here
// Example i make method called Refresh_event
Refresh_event();
break;
default:
break;
}
return super.onOptionsItemSelected(item);
}
if you need hide some menu item when you open slide menu navigation
in you activity that host fragments
public void onDrawerClosed(View view) {
// calling onPrepareOptionsMenu() to show action bar icons
supportInvalidateOptionsMenu();
}
public void onDrawerOpened(View drawerView) {
// calling onPrepareOptionsMenu() to hide action bar icons
supportInvalidateOptionsMenu();
}
/* *
* Called when invalidateOptionsMenu() is triggered
*/
#Override
public boolean onPrepareOptionsMenu(Menu menu) {
// if nav drawer is opened, hide the action item(About App && Refresh)
boolean drawerOpen = mDrawerLayout.isDrawerOpen(mDrawerList);
menu.findItem(R.id.about_app).setVisible(!drawerOpen);
menu.findItem(R.id.refresh).setVisible(!drawerOpen);
return super.onPrepareOptionsMenu(menu);
}