Custom Fragment

public class YourCustomFragment extends Fragment {
    EditText editText;
    Button button;

    @Override
    protected int getLayout() {
        return R.layout.fragment_custom_fragment;
    }

    @Override
    protected void onLayoutCreated(@NonNull View layout, @Nullable Bundle savedInstanceState) {
        editText = layout.findViewById(R.id.edittext);
        button = layout.findViewById(R.id.toastButton);
    }
}

class YourCustomFragment : Fragment() {
    private var editText: EditText? = null
    private var button: Button? = null

    override fun getLayout(): Int {
        return R.layout.fragment_custom_Fragment
    }

    override fun onLayoutCreated(layout: View, savedInstanceState: Bundle?) {
        editText = layout.findViewById(R.id.edittext)
        button = layout.findViewById(R.id.toastButton)
    }
}

public class YourContentFactory extends ChoicelyContentFragmentFactory {
    @Nullable
    @Override
    protected Fragment makeAppContentFragment(Context context, String type, @Nullable Uri internalUri, Bundle data) {
        Fragment fragment = null;
        switch (type) {
            case "special":
                final String internalUrl = data.getString(ChoicelyIntentKeys.INTERNAL_URL);
                if (!TextUtils.isEmpty(internalUrl)) {
                    final Uri uri = Uri.parse(internalUrl);
                    if (uri != null) {
                        final String key = uri.getLastPathSegment();
                        if (!CTextUtils.isEmpty(key)) {
                            switch (key) {
                                case "custom":
                                    fragment = YourCustomFragment();
                                    break;
                                default:
                                    break;
                            }
                        }
                    }
            default:
                break;
        }
        return fragment;
    }
}

class YourContentFactory : ChoicelyContentFragmentFactory() {

    override fun makeAppContentFragment(
        context: Context,
        type: String,
        internalUri: Uri?,
        data: Bundle
    ): Fragment? {
        var fragment: Fragment? = null

        when (type) {
            "special" -> {
                val internalUrl = data.getString(ChoicelyIntentKeys.INTERNAL_URL)
                if (!internalUrl.isNullOrEmpty()) {
                    val uri = Uri.parse(internalUrl)
                    val key = uri?.lastPathSegment
                    if (!key.isNullOrEmpty()) {
                        when (key) {
                            "custom" -> fragment = YourCustomFragment()
                        }
                    }
                }
            }
        }

        return fragment
    }
}

import android.app.Application;
import com.choicely.sdk.ChoicelySDK;

public class YourApplication extends Application {
    @Override
    public void onCreate() {
        super.onCreate();
        .....
        ChoicelySDK.factory().setContentFactory(new YourContentFactory());
    }
}

import android.app.Application
import com.choicely.sdk.ChoicelySDK

class YourApplication : Application() {
    override fun onCreate() {
        super.onCreate()
        .....
        ChoicelySDK.factory().setContentFactory(YourContentFactory())
    }
}