Menu

Standard Menu appears as three dots on top right corner of the screen.

1) Add main_menu.xml to res

Create new directory under res

Under this directory, file -> new -> menu resource file

2) Add menu items to the xml file (can also use drag and drop interface)

<item
        android:title="Settings"
        android:id="@+id/settings"></item>
    <item
        android:id="@+id/help"
        android:title="Help" />

3) Bind this menu in the activity

public class MainActivity extends AppCompatActivity {

        @Override
        public boolean onCreateOptionsMenu(Menu menu) {

            MenuInflater menuInflater = getMenuInflater();

            //bind the menu resouce with the menu class
            menuInflater.inflate(R.menu.main_menu,menu);

            return super.onCreateOptionsMenu(menu);
        }

        @Override
        public boolean onOptionsItemSelected(MenuItem item) {

            super.onOptionsItemSelected(item);

            //specifiy what should be done when the items are selected
            switch (item.getItemId()){
                case R.id.settings:
                    Log.i("Menu item","Settings");
                    return true;
                case R.id.help:
                    Log.i("Menu item","Help");
                    return true;
                default:
                    return false;

            }
        }

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