Menu won't show in Activity

Menu won't show in Activity - java

I have a menu that won't show up in my activity. I have a main activity and a separate activity that contains a list of items I want the user to be able to search through. However, the menu isn't showing up in the activity for searching, so nothing happens when entering in a string for the search.
The goal was the get the menu in the search activity in order to allow the user to search through items using a SearchView and RecyclerView
I'm very new to Android Studio, so any help would be greatly appreciated.
Here is the menu for the SearchView
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto">
<item android:id="#+id/action_search"
android:icon="#drawable/ic_search"
android:title="Search"
app:showAsAction="ifRoom|collapseActionView"
app:actionViewClass="android.support.v7.widget.SearchView"
/>
<item android:id="#+id/action_search2"
android:icon="#drawable/ic_search"
android:title="Search"
app:showAsAction="ifRoom|collapseActionView"
app:actionViewClass="android.support.v7.widget.SearchView"
/>
</menu>
Here is the layout xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:orientation="vertical">
<include
layout="#layout/activity_search_toolbar"/>
<android.support.v7.widget.SearchView
android:id="#+id/action_search"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:menu="#menu/search_menu">
</android.support.v7.widget.SearchView>
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?attr/colorPrimary"
android:minHeight="?attr/actionBarSize"
android:theme="?attr/actionBarTheme">
<Button
android:id="#+id/GoBackbutton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="GO BACK" />
<!--<android.support.v7.widget.SearchView-->
<!--android:id="#+id/searchBar"-->
<!--android:layout_width="wrap_content"-->
<!--android:layout_height="wrap_content">-->
<!--<!–app:menu="#menu/search_menu"–>-->
<!--</android.support.v7.widget.SearchView>-->
</android.support.v7.widget.Toolbar>
<android.support.v7.widget.RecyclerView
android:id="#+id/recycler_view"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
</android.support.v7.widget.RecyclerView>
</LinearLayout>
and the toolbar to add to the layout
<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.Toolbar
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:id="#+id/search_toolbar"
android:background="?attr/colorPrimary">
</android.support.v7.widget.Toolbar>
Here is where I inflate the search_menu
#Override
public boolean onCreateOptionsMenu(Menu menu){
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.search_menu, menu);
MenuItem searchItem = menu.findItem(R.id.action_search);
SearchView searchView = (SearchView) searchItem.getActionView();
searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
#Override
public boolean onQueryTextSubmit(String query) {
return false;
}
#Override
public boolean onQueryTextChange(String newText) {
adapter.getFilter().filter(newText);
return false;
}
});
return true;
}
Finally this is part of my Adapter class to filter the items in a RecyclerView
#Override
public Filter getFilter() {
return locationFilter;
}
private Filter locationFilter = new Filter(){
#Override
protected FilterResults performFiltering(CharSequence constraint){
List<Location> filteredLocationList = new ArrayList<>();
if(constraint == null || constraint.length() == 0){
filteredLocationList.addAll(locationListFull);
} else{
String filterPattern = constraint.toString().toLowerCase().trim();
for(Location location : locationListFull){
if(location.getTitle().toLowerCase().contains(filterPattern)){
filteredLocationList.add(location);
}
// Add another if statement here if we want to be able to search
// descriptions as well
}
}
FilterResults results = new FilterResults();
results.values = filteredLocationList;
return results;
}
#Override
protected void publishResults(CharSequence constraint, FilterResults results){
locationList.clear();
locationList.addAll((List)results.values);
notifyDataSetChanged();
}
};
Also if there's another way to use the SearchView with RecyclerView besides creating a menu for the SearchView, that would be very helpful. I have tried researching ways to access the SearchView besides through creating a new menu, but haven't found anything useful.

Prepare the Screen's standard options menu to be displayed. This is called right before the menu is shown, every time it is shown. You can use this method to efficiently enable/disable items or otherwise dynamically modify the contents.
https://developer.android.com/reference/android/app/Activity.html#onPrepareOptionsMenu(android.view.Menu)
You need to override onPrepareOptionsMenu and setup your searchview there instead of doing that in onCreateOptionsMenu

Related

Change the appearance of Android Search Dialog

I am trying to implement search functionality into an android app using the Search Dialog. After following the documentation, I got this search dialog when pressing the search button in my app.
As you can see, the search dialog is too small( the app bar can be seen below it), it is not centered, and contains the app icon near the back button.
The Search Dialog showed in the guide is centered vertically in the app bar and doesn't have the app icon near the back button, which is what I want to do for my search dialog as well. But I can't seem to find any resource on how to do it. Can anyone help me out?
Thanks in advance!
Edit: Here is the code that enables the Search Dialog
MainActivity.kt
class MainActivity : AppCompatActivity() {
private lateinit var binding: ActivityMainBinding
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
binding = ActivityMainBinding.inflate(layoutInflater)
val root = binding.root
setContentView(root)
//Setup the app bar
setSupportActionBar(binding.toolbar);
}
override fun onCreateOptionsMenu(menu: Menu?): Boolean {
val inflater = menuInflater;
inflater.inflate(R.menu.app_bar_menu, menu)
return true;
}
override fun onOptionsItemSelected(item: MenuItem) = when (item.itemId) {
R.id.action_search -> {
onSearchRequested()
true
}
else -> {
super.onOptionsItemSelected(item)
}
}
}
searchable.xml
<?xml version="1.0" encoding="utf-8"?>
<searchable xmlns:android="http://schemas.android.com/apk/res/android"
android:hint="#string/search_hint"
android:label="#string/app_name">
</searchable>
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout 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:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<androidx.appcompat.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:background="#color/colorPrimary"
android:minHeight="?attr/actionBarSize"
android:theme="?attr/actionBarTheme"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:title="#string/app_name" />
</androidx.constraintlayout.widget.ConstraintLayout>

Using the method that you want for create a search dialog, this is the most similar aspect that it can achieve:
https://i.stack.imgur.com/hwTlF.png
This is the code that I implemented:
MainActivity.class code:
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
#SuppressLint("ResourceType")
#Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.options_menu, menu);
SearchManager searchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE);
SearchView searchView = (SearchView) menu.findItem(R.id.search).getActionView();
searchView.setSearchableInfo(searchManager.getSearchableInfo(getComponentName()));
searchView.setIconifiedByDefault(true);
searchView.setIconified(false);
//Here you can set the parameters of the search view
return true;
}
I created a menu resource file called options_menu.xml and that's the code:
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:android="http://schemas.android.com/apk/res/android">
<item android:id="#+id/search"
android:title="title"
android:icon="#drawable/search_icon"
app:showAsAction="collapseActionView|ifRoom"
app:actionViewClass="android.widget.SearchView" />
</menu>
And the searchable xml file called search.xml
<?xml version="1.0" encoding="utf-8"?>
<Searchable xmlns:android="http://schemas.android.com/apk/res/android"
android:hint="Your hint"
android:label="Label text">
</Searchable>
I created the icon of the menu in the drawable folder but you can change to other icon if you want.
Also I leave several links to all the customizations that you can add to the searchView:
https://developer.android.com/guide/topics/search/searchable-config
https://developer.android.com/reference/android/widget/SearchView
I hope this is the right solution for you.

I made a different search method, I used the Android Studio search view,
that's the main activity code:
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.menu, menu);
MenuItem item = menu.findItem(R.id.mySearchButton);
SearchView searchView = (SearchView)item.getActionView();
searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
#Override
public boolean onQueryTextSubmit(String query) {
return false;
}
#Override
public boolean onQueryTextChange(String newText) {
return false;
}
});
return super.onCreateOptionsMenu(menu);
}
You have to create an Android Resource File, select resource type "menu", and call it as you want, after that, add this item:
<item android:id="#+id/mySearchButton"
android:title="Button"
android:icon="#drawable/search_icon"
app:actionViewClass="android.widget.SearchView"
app:showAsAction="always"/>
This code worked for me, images here:
https://i.stack.imgur.com/XNRZy.png
https://i.stack.imgur.com/hUt4x.png
I hope it works for you aswell.

How to show menu items in Toolbar in Fragment class?

I have added a menu in my fragment and would like to display menu items in the toolbar.
the menu xml is as follows:
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto">
<item
android:id="#+id/action_note"
android:icon="#drawable/ic_more_24dp"
app:showAsAction="always"
android:visible="true"
android:orderInCategory="1"
android:title="Note"/>
<item
android:id="#+id/action_submit"
android:icon="#drawable/ic_more_24dp"
app:showAsAction="always"
android:orderInCategory="2"
android:title="Submit"/>
</menu>
The view that holds the container, which holds the fragments is as follows:
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
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:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".DashboardActivity">
<include layout="#layout/toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content">
</include>
<FrameLayout
android:id="#+id/container"
android:layout_width="match_parent"
android:layout_above="#+id/navigationView"
android:layout_height="match_parent"
android:layout_marginBottom="56dp"
android:layout_marginTop="56dp"
/>
<android.support.design.widget.BottomNavigationView
android:id="#+id/navigationView"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginEnd="0dp"
android:layout_marginStart="0dp"
android:background="?android:attr/windowBackground"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:itemBackground="#android:color/white"
app:itemIconTint="#color/cardview_dark_background"
app:itemTextColor="#android:color/black"
app:menu="#menu/navigation_menu"
/>
</android.support.constraint.ConstraintLayout>
The code to display the menu in the fragment is as follows:
#Override
public void onViewCreated(#NonNull View view, #Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
setHasOptionsMenu(true);
init();
}
Then the code for the menu
#Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
super.onCreateOptionsMenu(menu, inflater);
inflater.inflate(R.menu.menu_attendance, menu);
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle item selection
switch (item.getItemId()) {
case R.id.action_submit:
return true;
case R.id.action_note:
return true;
default:
return super.onOptionsItemSelected(item);
}
}
I have added the hasOptionMenu (true) and still the menu items will not display in the toolbar

Try replacing this code:
#Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
super.onCreateOptionsMenu(menu, inflater);
inflater.inflate(R.menu.menu_attendance, menu);
}
to
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.menu_attendance, menu);
return true;
}

Android Search menu item disappears when pressing back button/collapsing search field

I'm using android SearchView to have a search button in my action bar. I followed this tutorial from Google Developers on YouTube, and added a few tweaks based on my own needs. However, whenever I exit the search field that comes up when clicking the button, the search button disappears!
Here is my onCreateOptionsMenu and onOptionsItemSelected functions
onCreateOptionsMenu:
#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;
}
onOptionsItemSelected:
#Override
public boolean onOptionsItemSelected(final 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();
switch (id) {
case R.id.action_settings:
// TODO: settings activity
break;
case R.id.action_logout:
FirebaseAuth.getInstance().signOut();
break;
case R.id.action_search:
// Initialize everything here, because it produces a NullPointerException if initialized in onCreateOptionsMenu
SearchView searchView = (SearchView) MenuItemCompat.getActionView(item);
SearchManager searchManager = (SearchManager)getSystemService(Context.SEARCH_SERVICE);
ComponentName componentName = new ComponentName(this, SearchableActivity.class);
searchView.setSearchableInfo(searchManager.getSearchableInfo(componentName));
searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
#Override
public boolean onQueryTextSubmit(String query) {
return false;
}
#Override
public boolean onQueryTextChange(String newText) {
return false;
}
});
break;
}
return super.onOptionsItemSelected(item);
}
And here's my menu_main.xml layout file
<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.magnus.inline.MainActivity">
<item
android:id="#+id/action_search"
android:icon="#drawable/ic_action_search"
android:title="Search"
app:actionViewClass="android.support.v7.widget.SearchView"
app:showAsAction="ifRoom|collapseActionView"/>
<item
android:id="#+id/action_settings"
android:orderInCategory="100"
android:title="#string/action_settings"
app:showAsAction="never" />
<item
android:id="#+id/action_logout"
android:orderInCategory="200"
android:title="#string/action_logout"
app:showAsAction="never" />
And searchable.xml layout file
<?xml version="1.0" encoding="utf-8"?>
<searchable xmlns:android="http://schemas.android.com/apk/res/android"
android:label="#string/app_name"
android:hint="Search"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
</searchable>
Images
EDIT:
I noticed that the only time the search button disappears is when I've pressed the options button while in "search mode"(see the last image in link). I have a feeling that when the options menu is displayed, the "action_search" is somehow converted to a options menu item, instead of an action bar item (?). For anyone asking, whenever I try to call MenuItemCompat.getActionView() of a searchview MenuItem in the onCreateOptionsMenu function, my app just crashes and says that it tries to perform it on a null object reference.
Here's my activity_main.xml layout file
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout
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/main_content"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:context="com.magnus.inline.MainActivity">
<android.support.design.widget.AppBarLayout
android:id="#+id/main_appbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/AppTheme.AppBarOverlay">
<android.support.v7.widget.Toolbar
android:id="#+id/main_toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?attr/colorPrimary"
app:layout_scrollFlags="scroll|enterAlways"
app:popupTheme="#style/AppTheme.PopupOverlay">
</android.support.v7.widget.Toolbar>
<android.support.design.widget.TabLayout
android:id="#+id/tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/AlertDialog.AppCompat.Light"
android:background="#color/colorPrimaryDark" />
</android.support.design.widget.AppBarLayout>
<android.support.v4.view.ViewPager
android:id="#+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior" />
</android.support.design.widget.CoordinatorLayout>

Instead of
app:showAsAction="ifRoom|collapseActionView"
Change to
app:showAsAction="always|collapseActionView

How to set menu to Toolbar in Android

I want use ToolBar instead of ActionBar, but don't show me menu in toolbar!!! i want set menu such as Refresh or Setting buttons in ActionBar.
Toolbar.xml code :
<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.Toolbar
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?attr/colorPrimary"
android:minHeight="?attr/actionBarSize"
app:navigationContentDescription="#string/abc_action_bar_up_description"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light"
app:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar"
app:title="Main Page"
android:gravity="center"/>
MainPage.java code:
public class MainPage extends AppCompatActivity {
private Toolbar toolbar;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main_page);
toolbar = (Toolbar) findViewById(R.id.main_toolbar);
setSupportActionBar(toolbar);
if (getSupportActionBar() != null) {
getSupportActionBar().setTitle("Main Page");
}
toolbar.setSubtitle("Test Subtitle");
toolbar.inflateMenu(R.menu.main_menu);
}
}
main_menu.xml code :
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto">
<item
android:id="#+id/menu_main_setting"
android:icon="#drawable/ic_settings"
android:orderInCategory="100"
app:showAsAction="always"
android:actionLayout="#layout/toolbar"
android:title="Setting" />
<item
android:id="#+id/menu_main_setting2"
android:icon="#drawable/ic_settings"
android:orderInCategory="200"
app:showAsAction="always"
android:actionLayout="#layout/toolbar"
android:title="Setting" />
</menu>
How to fix this problem and show menu in Toolbar ? thanks all dears <3

just override onCreateOptionsMenu like this in your MainPage.java
#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, menu);
return true;
}

Don't use setSupportActionBar(toolbar)
I don't know why but this works for me.
toolbar = (Toolbar) findViewById(R.id.main_toolbar);
toolbar.setSubtitle("Test Subtitle");
toolbar.inflateMenu(R.menu.main_menu);
For menu item click do this:
toolbar.setOnMenuItemClickListener(new Toolbar.OnMenuItemClickListener() {
#Override
public boolean onMenuItemClick(MenuItem item) {
if (item.getItemId() == R.id.item1) {
// do something
} else if (item.getItemId() == R.id.filter) {
// do something
} else {
// do something
}
return false;
}
});
Will update the why part of this answer when I find a proper explanation.

Here is a fuller answer as a reference to future visitors. I usually use a support toolbar but it works just as well either way.
1. Make a menu xml
This is going to be in res/menu/main_menu.
Right click the res folder and choose New > Android Resource File.
Type main_menu for the File name.
Choose Menu for the Resource type.
Paste in the following content as a starter.
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto">
<item
android:id="#+id/action_add"
android:icon="#drawable/ic_add"
app:showAsAction="ifRoom"
android:title="Add">
</item>
<item
android:id="#+id/action_settings"
app:showAsAction="never"
android:title="Settings">
</item>
</menu>
You can right click res and choose New image asset to create the ic_add icon.
2. Inflate the menu
In your activity add the following method.
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main_menu, menu);
return true;
}
3. Handle menu clicks
Also in your Activity, add the following method:
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle item selection
switch (item.getItemId()) {
case R.id.action_add:
addSomething();
return true;
case R.id.action_settings:
startSettings();
return true;
default:
return super.onOptionsItemSelected(item);
}
}
Further reading
Android Menu Documentation

You need to override this code in your Activity:
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu, this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main2, menu);
return true;
}
and set your toolbar like this:
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);

You can still use the answer provided using Toolbar.inflateMenu even while using setSupportActionBar(toolbar).
I had a scenario where I had to move toolbar setup functionality into a separate class outside of activity which didn't by-itself know of the event onCreateOptionsMenu.
So, to implement this, all I had to do was wait for Toolbar to be drawn before calling inflateMenu by doing the following:
toolbar.post {
toolbar.inflateMenu(R.menu.my_menu)
}
Might not be considered very clean but still gets the job done.

First way:
In activitymain.xml
<androidx.appcompat.widget.Toolbar
android:id="#+id/maintoolbar"
android:layout_width="match_parent"
android:layout_height="56dp"/>
In MainActivity.java
import androidx.appcompat.widget.Toolbar;
private Toolbar toolbar;
Inside onCreate method-
toolbar=findViewById(R.id.maintoolbar);
setSupportActionBar(toolbar);
Inside your MainActivity class-
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.<your menu xml file name here>,menu);
return super.onCreateOptionsMenu(menu);
}
Second way :
//Remove setSupportActionBar(toolbar) and onCreateOptionmenu.
toolbar=findViewById(R.id.maintoolbar);
toolbar.inflateMenu(R.menu.<your menu xml file name here>);

Also you need this, to implement some action to every options of menu.
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.menu_help:
Toast.makeText(this, "This is teh option help", Toast.LENGTH_LONG).show();
break;
default:
break;
}
return true;
}

Without ActionBar but with Toolbar
If you want to use a Toolbar instead of the ActionBar, to setSupportActionBar is contradiction in principle as #RohitSingh answered above.
You need neither to use setSupportActionBar nor to override onCreateOptionsMenu and onOptionsItemSelected which are used for the ActionBar.
NoActionBar theme
Place a Toolbar in the layout xml
Prepare a menu xml
Toolbar#inflateMenu (alternatively you can also set a menu in the layout xml)
Toolbar#setOnMenuItemClickListener
Below is an example.
1. NoActionBar theme
(MaterialCompolent.DayNight theme is used in this sample)
<style name="Theme.AppTheme" parent="Theme.MaterialComponents.DayNight.NoActionBar">
2. Place a Toolbar in the layout
(MaterialToobar is used in this sample)
<androidx.constraintlayout.widget.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent">
<com.google.android.material.appbar.MaterialToolbar
android:id="#+id/toolbar"
android:layout_width="0dp"
android:layout_height="wrap_content"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
3. Prepare a menu xml
<menu xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:android="http://schemas.android.com/apk/res/android">
<item
android:id="#+id/item1"
android:title="#string/item1"
app:showAsAction="ifRoom" />
<item
android:id="#+id/item2"
android:title="#string/item2"
app:showAsAction="ifRoom" />
</menu>
4. Toolbar#inflateMenu
binding.toolbar.inflateMenu(R.menu.main); // binding is a ViewBinding
5. Toolbar#setOnMenuItemClickListener
Recent Android recommend to avoid to use switch to differentiate ids. Using a normal if ~ else if ~ else block is desirable. In addition to that, we can use lambda in Java 8.
binding.toolbar.setOnMenuItemClickListener(menuItem -> {
int itemId = menuItem.getItemId();
if (itemId == R.id.item1) {
// do something for item1
return true;
} else if (itemId == R.id.item2) {
// do something for item2
return true;
} else {
// if you do nothing, returning false should be appropriate.
return false;
}
});

Although I agree with this answer, as it has fewer lines of code and that it works:
How to set menu to Toolbar in Android
My suggestion would be to always start any project using the Android Studio Wizard. In that code you will find some styles:-
<style name="AppTheme.AppBarOverlay" parent="ThemeOverlay.AppCompat.Dark.ActionBar" />
<style name="AppTheme.PopupOverlay" parent="ThemeOverlay.AppCompat.Light" />
and usage is:
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/AppTheme.AppBarOverlay">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:popupTheme="#style/AppTheme.PopupOverlay" />
</android.support.design.widget.AppBarLayout>
Due to no action bar theme declared in styles.xml, that is applied to the Main Activityin the AndroidManifest.xml, there are no exceptions, so you have to check it there.
<activity android:name=".MainActivity" android:screenOrientation="portrait"
android:theme="#style/AppTheme.NoActionBar">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
The Toolbar is not an independent entity, it is always a child
view in AppBarLayout that again is the child of
CoordinatorLayout.
The code for creating a menu is the standard code since day one,
that is repeated again and again in all the answers, particularly
the marked one, but nobody realized what is the difference.
BOTH:
Toolbar toolbar = findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
AND:
How to set menu to Toolbar in Android
WILL WORK.
Happy Coding :-)

In XML add one line inside
<com.google.android.material.appbar.MaterialToolbar app:menu="#menu/main_menu"/>
In java file
Remove three line setSupportActionBar(toolbar); if (getSupportActionBar() != null) { getSupportActionBar().setTitle("Main Page"); }
add one line toolbar.setTitle("Main Page")

In your activity override this method.
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main_menu, menu);
return true;
}
This will inflate your menu below:
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto">
<item
android:id="#+id/menu_main_setting"
android:icon="#drawable/ic_settings"
android:orderInCategory="100"
app:showAsAction="always"
android:actionLayout="#layout/toolbar"
android:title="Setting" />
<item
android:id="#+id/menu_main_setting2"
android:icon="#drawable/ic_settings"
android:orderInCategory="200"
app:showAsAction="always"
android:actionLayout="#layout/toolbar"
android:title="Setting" />
</menu>

In my case, I'm using an AppBarLayout with a CollapsingToolbarLayout and the menu was always
being scrolled out of the screen, I solved my problem by switching android:actionLayout in menu's XML to
the toolbar's id. I hope it can help people in the same situation!
activity_main.xml
<android.support.design.widget.CoordinatorLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:fab="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".activities.MainScreenActivity"
android:screenOrientation="portrait">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="300dp"
app:elevation="0dp"
android:theme="#style/AppTheme.AppBarOverlay">
<android.support.design.widget.CollapsingToolbarLayout
android:id="#+id/collapsingBar"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_scrollFlags="exitUntilCollapsed|scroll"
app:contentScrim="?attr/colorPrimary"
app:expandedTitleMarginStart="48dp"
app:expandedTitleMarginEnd="48dp"
>
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:elevation="0dp"
app:popupTheme="#style/AppTheme.PopupOverlay"
app:layout_collapseMode="pin"/>
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
</android.support.design.widget.CoordinatorLayout>
main_menu.xml
<?xml version="1.0" encoding="utf-8"?> <menu
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto">
<item
android:id="#+id/logoutMenu"
android:orderInCategory="100"
android:title="#string/log_out"
app:showAsAction="never"
android:actionLayout="#id/toolbar"/>
<item
android:id="#+id/sortMenu"
android:orderInCategory="100"
android:title="#string/sort"
app:showAsAction="never"/> </menu>

You can achieve this by two methods
Using XML
Using java
Using XML
Add this attribute to toolbar XML
app:menu = "menu_name"
Using java
By overriding onCreateOptionMenu(Menu menu)
public class MainActivity extends AppCompatActivity {
private Toolbar toolbar;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
toolbar = findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.demo_menu,menu);
return super.onCreateOptionsMenu(menu);
}
}
for more details or implementating click on the menu go through this article
https://bedevelopers.tech/android-toolbar-implementation-using-android-studio/

You don't actually need to touch the fragment/activity class at all to get a menu inside a toolbar. You can use Rohit Singh's method inside onViewCreated method
import androidx.appcompat.widget.Toolbar
...
override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
super.onViewCreated(view, savedInstanceState)
val toolbar = view.findViewById<Toolbar>(R.id.inbox_toolbar)
toolbar.inflateMenu(R.menu.inbox_menu)
}
or
simply define a app:menu element inside the toolbar,
<androidx.appcompat.widget.Toolbar ...
app:menu= "#menu/myMenu" ?>

Simple fix to this was setting showAsAction to always in menu.xml in res/menu
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto">
<item
android:id="#+id/add_alarm"
android:icon="#drawable/ic_action_name"
android:orderInCategory="100"
android:title="Add"
app:showAsAction="always"
android:visible="true"/>
</menu>

protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar;
toolbar = findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
getSupportActionBar().setDisplayShowTitleEnabled(false);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.menu_drawer,menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
int id = item.getItemId();
if (id == R.id.action_drawer){
drawerLayout.openDrawer(GravityCompat.END);
if (drawerLayout.isDrawerOpen(GravityCompat.END)) {
drawerLayout.closeDrawer(GravityCompat.END);
} else {
drawerLayout.openDrawer(GravityCompat.END);
}
}
return super.onOptionsItemSelected(item);
}
res/layout/drawer_menu
<?xml version="1.0" encoding="utf-8"?>
<menu
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto">
<item
android:id="#+id/action_drawer"
android:title="#string/app_name"
android:icon="#drawable/ic_menu_black_24dp"
app:showAsAction="always"/>
</menu>
toolbar.xml
<com.google.android.material.appbar.AppBarLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/AppTheme.AppBarOverlay">
<androidx.appcompat.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:popupTheme="#style/AppTheme.PopupOverlay"
app:titleTextColor="#android:color/white"
app:titleTextAppearance="#style/TextAppearance.Widget.Event.Toolbar.Title">
<TextView
android:id="#+id/toolbar_title"
android:layout_gravity="center"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:text="#string/app_name"
android:textColor="#android:color/white"
style="#style/TextAppearance.AppCompat.Widget.ActionBar.Title" />
</androidx.appcompat.widget.Toolbar>

private Toolbar toolbar;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
toolbar = (Toolbar) findViewById(R.id.my_toolbar);
*// here is where you set it to show on the toolbar*
setSupportActionBar(toolbar);
}
Well, you need to set support action bar setSupportActionBar(); and pass your variable, like so: setSupportActionBar(toolbar);

SearchView with SherlockActivity returns null on getActionView()

I've been transitioning an Android application developed with Eclipse over to Android Studio. It targets a minimum API level of 10 (current 22) and uses ActionBarSherlock (huge bummer). With Eclipse, it was making use of ActionBarSherlock 4.2 in a library project, but now it seems the only way to use ActionBarSherlock is with 4.4 as an AAR with gradle. compile 'com.actionbarsherlock:actionbarsherlock:4.4.0#aar'
After getting everything migrated, the app now crashes whenever the SearchView is used on Android 2.3.5 (works fine on Android 4). The problem is in onCreateOptionsMenu menu.findItem(R.id.search_menu_item).getActionView() which returns null. Here's what my SearchActivity class looks like:
public class SearchActivity extends SherlockActivity
{
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.search_view);
ActionBar actionBar = getSupportActionBar();
actionBar.setDisplayHomeAsUpEnabled(true);
mListView = (ListView) findViewById(R.id.search_view_list);
}
#Override
public boolean onCreateOptionsMenu(Menu menu)
{
super.onCreateOptionsMenu(menu);
getSupportMenuInflater().inflate(R.menu.search_menu, menu);
//Get the action view of the menu item whose id is search
SearchView searchView = (SearchView) menu.findItem(R.id.search_menu_item).getActionView();
searchView.setQueryHint("Search for ISBN, UPC, EAN or Title");
final Menu savedMenu = menu;
searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener()
{
#Override
public boolean onQueryTextSubmit(String query) {
//Toast.makeText(getApplicationContext(), query, Toast.LENGTH_SHORT).show();
if (mOnlineSearchTask == null)
{
mOnlineSearchTask = new OnlineSearchTask(getBaseContext());
mOnlineSearchTask.execute(query, "title", "All");
((SearchView) savedMenu.findItem(R.id.search_menu_item).getActionView()).clearFocus();
}
return true;
}
#Override
public boolean onQueryTextChange(String newText) {
return false;
}
}
);
searchView.setIconified(false);
return true;
}
}
search_view.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<ListView
android:id="#+id/search_view_list"
android:layout_height="wrap_content"
android:layout_width="match_parent"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true">
</ListView>
</RelativeLayout>
search_menu.xml
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<item android:id="#+id/search_menu_item"
android:title="Search"
android:icon="#drawable/ic_search_inverse"
android:showAsAction="always"
android:actionViewClass="com.actionbarsherlock.widget.SearchView" />
</menu>

Try changing your xml file (search_menu.xml) to :
<menu xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<item android:id="#+id/search_menu_item"
android:title="Search"
android:icon="#drawable/ic_search_inverse"
android:showAsAction="always"
app:actionViewClass="com.actionbarsherlock.widget.SearchView" />
</menu>
It looks almost the same (because it's really similiar) - I changed the last line from android:actionViewClass.... to app:actionViewClass...

Develop Reference

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Menu won't show in Activity - java

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SearchView with SherlockActivity returns null on getActionView()

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