How to implement an interface on a NavigationDrawerActivity?

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I am currently implementing an interface in a blank activity without any problem but then when I have to shift to another activity, for example an activity that already implements something like a navigational drawer I am confused as to how to implement my interface. for example for the interface below

public interface TabsListener {
    void onTabAdded();
    void onTabRemoved();

I would implement it this way on a blank activity

public class MainActivity extends AppCompatActivity implements TabsListener {

but then again for an Navigation drawer activity which already implements a Listener do I have to include my interface as a sub class or can it be done from the main method ?

public class MainActivity extends AppCompatActivity implements NavigationView.OnNavigatioinItemSelectedListener {}

In java you can extend only one class but you can implement all the interfaces you want.

public class MainActivity extends AppCompatActivity implements Interface1, Interface2 {

    private Interface1 mListener1;
    private Interface2 mListener2;

If you want to create a new interface that extends functionalities of another one, could be nice extend directly the base interface:

Interface1 {
      public void method1();

Interface2 extends Interface1 {
      public void method2();

class MyClass implements Interface2 {

      @Override public void method1(){}
      @Override public void method2(){}

Update UI components with NavigationUI, An example of a popular Android app that implements the navigation drawer By implementing this contract or interface, we must now override the only One such template can be used to create a navigation drawer activity. Using the Navigation Drawer Activity Template While it is possible to implement a navigation drawer within any activity, the easiest approach is to select the Navigation Drawer Activity template when creating a new project or adding a new activity to an existing project

You can implement by separated by comma(,).

public class MainActivity extends AppCompatActivity implements NavigationView.OnNavigatioinItemSelectedListener,TabsListener {}

How to Code a Navigation Drawer for an Android App, Android navigation drawer example to explain how you can use the navigation drawer activity for your android application. How to implement navigation drawer in your android app with an example Hello everyone, welcome back to Here in this session, I am going to discuss on implementing a…

You can make an interface with multiple interfaces:

public interface MyInterface{
    interface Interface1{
        void methodX();
    interface Interface2{
        void methodY();
    interface Interface3{
        void methodZ();

Then in your activity:

public class MyActivity
        extends AppCompatActivity
        implements MyInterface.Interface1,

    public void methodX() {
    //some fun code

    public void methodY() {
    //some fun code

NavigationDrawerActivity (Sprockets Android 2.4.0 API), Use Android Studio to generate a Navigation Drawer Activity with a how "the Drawer user interface (UI) element enables both icons and text—the best of both​  Actually we select Navigation Drawer Activity, so a pre built navigation drawer is provided by Android Studio. Navigation Drawer is available as Navigation Drawer Activity Templet in Android Studio.

Android Navigation Drawer Example using Fragments, To create Fragments in your main project i.e Right click on the project folder -> New -> Fragments -> Fragment How to use navigation drawer activity in Android Studio public interface OnFragmentInteractionListener {. Android Material Design implementation of the simple menu items in the NavigationView is explained in detail with the codes and creation of demo application with Android Design Support Library.

Android Navigation Drawer Activity Tutorial, Android tutorial about implementing app slider menu using navigation drawer. The quick and easy way is choosing the Navigation Drawer Activity from Hello, I was trying to build my project with this interface (side menu  In part 2 of the navigation drawer tutorial, we create the navigation drawer layout including the header. For this we set a DrawerLayout as the root view and put our content, consisting of a

How to use navigation drawer activity in Android Studio, Your class can implement more than one interface, so the implements keyword is followed by a comma-separated list of the interfaces implemented by the class. Interfaces (C# Programming Guide) 02/20/2020; 4 minutes to read +16; In this article. An interface contains definitions for a group of related functionalities that a non-abstract class or a struct must implement. An interface may define static methods, which must have an implementation. Beginning with C# 8.0, an interface may define a default