ContextThemeWrapper cannot be cast in AppCompatActivity

Question

Cannot solve as:: java.lang.ClassCastException: android.view.ContextThemeWrapper cannot be cast to androidx.appcompat.app.AppCompatActivity.
Went through various sites but cannot solve my problem.

holder.ivPlace.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                AppCompatActivity activity = (AppCompatActivity) v.getContext();
                Fragment myFragment = new BookingDetailsFragment();
                activity.getSupportFragmentManager().beginTransaction().replace(R.id.bookingFragment, myFragment)
                        .addToBackStack(null).commit();



            }
        });

Layout is inflated in this way::

@NonNull
    @Override
    public BookingActivityAdapter.ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
        View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.activity_booking_data, parent, false);
        ViewHolder viewHolder = new ViewHolder(view);
        return viewHolder;

    }

Does this answer your question? [android.view.ContextThemeWrapper cannot be cast to android.app.Activity](https://stackoverflow.com/questions/51640154/android-view-contextthemewrapper-cannot-be-cast-to-android-app-activity) — Stanislav Bondar, Jun 07 '21 at 08:20
@StanislavBondar actually i am working on replacing fragment, so I followed this answer before posting, but getSupportFragmentManager() doesnot work by showing red lines errors. Any help will be appreciated. activity.getSupportFragmentManager().beginTransaction().replace(R.id.bookingFragment, myFragment).addToBackStack(null).commit(); — Hubby Tiwari, Jun 07 '21 at 08:32

che10 · Accepted Answer · 2021-06-07T08:34:07.347

I think you can make use of the following snippet for your issue. But I would like to recommend you do not do so as such for two reasons mainly.

Since you explicitly need Activity only, why not send that through or even better implement an interface for callback.
What if tomorrow this will be changed, and there will be other context for View?

/**
 * Get activity instance from desired context.
 */
public static Activity getActivity(Context context) {
    if (context == null) return null;
    if (context instanceof Activity) return (Activity) context;
    if (context instanceof ContextWrapper) return getActivity(((ContextWrapper)context).getBaseContext());
    return null;
}

EDIT: Snippets for callback to activity

public interface MyAdapterListener {
        void onPlaceClick();
    }

And then when you are creating an instance of your Adapter you can pass it like this

public BookingActivityAdapter(MyAdapterListener myAdapterListener){
        this.myAdapterListener = myAdapterListener;
}

Just be sure to implement this interface in your activity. Then finally inside your onClick you can use this interface as follows

holder.ivPlace.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                myAdapterListener.onPlaceClick();

            }
        });

that's the true case, how should I do with the above code with replacing fragments, because getSupportFragmentManager does not work!! Would u not mind putting some light on it. — Hubby Tiwari, Jun 07 '21 at 08:26
Implement a callback via an interface back to your activity so when you perform a click action it goes back to your activity and from there on you can directly perform transaction. I will add some pseudo snippets for you in the answer. @HubbyTiwari. — che10, Jun 07 '21 at 08:30

score 2 · Answer 2 · answered Jan 10 '22 at 15:25

2

I know it's late but I resolved it by passing MyActivity.this instead of this or getApplicationContext().

answered Jan 10 '22 at 15:25

I'm a developer

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ContextThemeWrapper cannot be cast in AppCompatActivity

2 Answers2