Overflow menu icon not visible…

Question

I am adding the toolbar to linear layout I have created a toolbar without using xml.Everything is working fine but i am not able to add overflow menu .Overflow icon is not showing

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/main_lnrLayout"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    tools:context="com.smartify.customizetoolbardemo.MainActivity"
    android:orientation="vertical"
    >

   <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/lnrlayout_toolbar"
        android:orientation="vertical">
  </LinearLayout>


</LinearLayout>

Answer 1

Add a menu to your toolbar

<?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:title="Settings"
        android:id="@+id/action_settings"
        />
</menu>

inflate you menu

public boolean onCreateOptionsMenu(Menu menu) {

        getMenuInflater().inflate(R.menu.action_menu, menu);
        return true;
    }

You will get icon of overflow menu then.

Answer 2

Add one button or any view in your lnrlayout_toolbar

Button btn=(Button)findViewById(R.id.btn_menu);
showPopupMenu(btn);

and call below method for showing overlay menu

public void showPopupMenu(View v){
PopupMenu popup = new PopupMenu(this, v);
    MenuInflater inflater = popup.getMenuInflater();
    inflater.inflate(R.menu.sub_menu, popup.getMenu());
    popup.show();
}

is sub_menu is your menu file that you want to show..

Answer 3

Try this

XML code for menu items create menu resource in res>>menu>>menu_optipn.xml

<item android:id="@+id/new_game"
    android:icon="@mipmap/ic_launcher"
    android:title="item1"
    />
<item android:id="@+id/help"
    android:icon="@mipmap/ic_launcher"
    android:title="item2"
    android:orderInCategory="0"
    />

MainActivity.Java

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    MenuInflater inflater = getMenuInflater();
    inflater.inflate(R.menu.menu_option, menu);
    return true;
}

 @Override
public boolean onOptionsItemSelected(MenuItem item) {
    // Handle item selection
    switch (item.getItemId()) {
        case R.id.new_game:
            Toast.makeText(this, "Item 1 is selected", Toast.LENGTH_SHORT).show();
            return true;
        case R.id.help:
            Toast.makeText(this, "Item 2 is selected", Toast.LENGTH_SHORT).show();
            return true;
        default:
            return super.onOptionsItemSelected(item);
    }
}