Is there any way to Detect userInterations in Android fragments?

Question

Could any one help me out with this situation.

I have implemented OnUserInteraction() method for Android Activity it is working fine for me.

But I want it for Fragments too.How can i able call OnUserInteraction() or is there any another way to identify userInteraction with the UI.

Trefoil

It is unclear what you are trying to achieve. Please edit with a minimal reproducible example – Legault

I would like to Close my app if it is in idle mode (Background& foreground too).OnUserInteraction is working for me for activities,but i am unable to implement it in fragments. – Trefoil

The Fragment is held within the Activity. I don't understand why you think you need to implement the method there. – Legault

Answer 1

@Sunil's answer causes java.lang.StackOverflowError so I corrected it. Below code works smoothly

Create a java class in your app named UserInterationListener and put below code there

public interface UserInteractionListener {
    void onUserInteraction();
}

Then create an instance variable in your activity, for this interface as below

private UserInteractionListener userInteractionListener;

Then implement a setter method for this variable, in your activity.

public void setUserInteractionListener(UserInteractionListener userInteractionListener) {
    this.userInteractionListener = userInteractionListener;
}

Now override the onUserInteraction method of your activity and if the listener variable is not null, invoke the interface method.

@Override
public void onUserInteraction() {
    super.onUserInteraction();
    if (userInteractionListener != null)
        userInteractionListener.onUserInteraction();
}

Now, in your fragment class, implement UserInteractionListener as below

public myFragment extends Fragment implements UserInteractionListener

also override interface's method

@Override
public void onUserInteraction(){
//TODO://do your work on user interaction
}

then in your fragment invoke your activity's userinteraction setter method like below

((YourActivity) getActivity()).setUserInteractionListener(this);

this last part is important.

Nonmaterial

Answer 2

The easiest way to do this is to implement on touch listener in onViewCreated like so

override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
    super.onViewCreated(view, savedInstanceState)
    view.setOnTouchListener { v, event ->
        requireActivity().onUserInteraction()
        true
    }
}

BTW this solution is in Kotlin

Apiece

Answer 3

There is another way around.

Create a listener in your activity as below

public interface UserInteractionListener {
    void onUserInteraction();
}

Then create an instance variable in your activity, for this interface as below

private UserInteractionListener userInteractionListener;

Then implement a setter method for this variable, in your activity. (You can even keep a List of eventlistener objects, if you want to pass same userinteraction to multiple consumers)

public void setUserInteractionListener(UserInteractionListener userInteractionListener) {
    this.userInteractionListener = userInteractionListener;
}

Now override the onUserInteraction method of your activity and if the listener variable is not null, invoke the interface method.

@Override
public void onUserInteraction() {
    super.onUserInteraction();
    if (userInteractionListener != null)
        userInteractionListener.onUserInteraction();
}

Now, in your fragment class, register for events as below

((YourActivity) getActivity()).setUserInteractionListener(new YourActivity.UserInteractionListener() {
    @Override
    public void onUserInteraction() {
        // Do whatever you want here, during user interaction
    }
});

Etching

method inside onUserInteraction () doesn't get called – Dyl

@ClaudeHangui Which onUserInteraction() is not called? Activity's overriden method or the method from the anonymous inner class YourActivity.UserInteractionListener? – Etching

II'm trying to implement this workaround on spinner. So I followed the steps as shown above, and I register the event in my fragments, however the click on the spinner doesn't seem to work i.e it doesn't perform the expected behavior – Dyl