How can I open a new activity using a button in a fragment?

I'm trying to move from a fragment to an activity with a button, but every the button is pressed my program crashes. I can't seem to find the source of the error.

I have tried changing the intent statement in many ways but each time the program still crashes, and I'm not being given any details on the error.

public class ExercisesFragment extends Fragment {

    int[] newArray;
    
    private FragmentExercisesBinding binding;
    
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
    }
    
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        binding = FragmentExercisesBinding.inflate(getLayoutInflater(), container, false);
        View view = binding.getRoot();
    
        newArray = new int[]{
    
              R.id.barbellRow, R.id.barbellFrontSquat, R.id.barbellShrugs, R.id.bodyweightSquat, R.id.dumbbellChestPress,
                R.id.lateralRaise, R.id.overheadTricepExtensions, R.id.pullUps, R.id.pushUps, R.id.rearDeltFlies,
                R.id.romanianDeadlifts, R.id.seatedDumbbellCurl, R.id.sitUps, R.id.shoulderPress, R.id.standingCurl,
    
    
        };
    
    
        return view;
    }
    
    public void Imagebuttonclicked(View view) {
    
    
        for (int i=0;i< newArray.length;i++){
    
    
            if(view.getId() == newArray[i]) {
               int value = i+1;
               Log.i("FIRST", String.valueOf(value));
               Intent intent = new Intent(getActivity(),tutorialActivity.class);
               getActivity().startActivity(intent);
    
    
            }
        }
    
    }

}

Here is the stacktrace for the error that occurs when I press on the small arrow buttons:

> E FATAL EXCEPTION: main
> Process: com.example.neafitnessapp, PID: 23372
> java.lang.IllegalStateException: Could not find method
> Imagebuttonclicked(View) in a parent or ancestor Context for
> android:onClick attribute defined on view class
> android.widget.LinearLayout with id 'barbellRow'
> at
> android.view.View$DeclaredOnClickListener.resolveMethod(View.java:6359)
> at android.view.View$DeclaredOnClickListener.onClick(View.java:6316)
> at android.view.View.performClick(View.java:7506)
> at android.view.View.performClickInternal(View.java:7483)
> at android.view.View.-$$Nest$mperformClickInternal(Unknown Source:0)
> at android.view.View$PerformClick.run(View.java:29334)
> at android.os.Handler.handleCallback(Handler.java:942)
> at android.os.Handler.dispatchMessage(Handler.java:99)
> at android.os.Looper.loopOnce(Looper.java:201)
> at android.os.Looper.loop(Looper.java:288)
> at android.app.ActivityThread.main(ActivityThread.java:7872)
> at java.lang.reflect.Method.invoke(Native Method)
> at
> com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:548)
> at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:936)

Your Problem

> I have tried changing the intent statement in many ways but each time the program still crashes, and I'm not being given any details on the error.

The crash is telling you the exact problem. This is how to debug your issue:

First, look at the actual exception that was raised and read the information:

> java.lang.IllegalStateException: Could not find method Imagebuttonclicked(View) in a parent or ancestor Context for android:onClick attribute defined on view class android.widget.LinearLayout with id 'barbellRow'

You didn't post your layout but from this very detailed error we know you have a LinearLayout with id barbellRow on which you set the android:onClick attribute to the Imagebuttonclicked(View) method.

We also know that problem is that that method was not found "in a parent or ancestor Context". From the documentation, for onClick we know that (emphasis mine):

>For instance, if you specify android:onClick="sayHello", you must declare a public void sayHello(View v) method of your context (typically, your Activity).

From your code, your click handler is defined in your Fragment and Fragment is not a Context, so it fails.

So the solution is one of two options:

1 - (Preferred) - Don't use the gimmicky onClick attribute and set the click listener on the LinearLayout explicitly in your Fragment. This will be more obvious and keeps your click handling local to your Fragment instead of having it being handle by the Activity.

public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    binding = FragmentExercisesBinding.inflate(getLayoutInflater(), container, false);
    View view = binding.getRoot();
    // Your existing code

    // Set onclicklistener explicitly
    binding.barbellRow.setOnClickListener(new OnClickListener() {
        @Override
        public void onClick(View v) {
            Imagebuttonclicked(v);
        }
    });

    return view;
}

2 - If you want to use the onClick attribute, move the function to the Activity in which the Fragment lives to satisfy the conditions required by that attribute.