SendCustomEventActivityJava.java

package com.vonage.sample.channel.messaging;

import android.os.Bundle;
import android.os.PersistableBundle;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.appcompat.app.AppCompatActivity;
import com.nexmo.client.NexmoClient;
import com.nexmo.client.NexmoConversation;
import com.nexmo.client.request_listener.NexmoApiError;
import com.nexmo.client.request_listener.NexmoRequestListener;
import org.jetbrains.annotations.NotNull;
import timber.log.Timber;

import java.util.HashMap;

public class SendCustomEventActivityJava extends AppCompatActivity {

    @Override
    public void onCreate(@Nullable Bundle savedInstanceState, @Nullable PersistableBundle persistentState) {
        super.onCreate(savedInstanceState, persistentState);

        // No need for client initialization here. Client initialization is already done in BaseApplication class.
        // new NexmoClient.Builder().build(this);
        NexmoClient client = NexmoClient.get();
        client.login("JWT token");
        getConversation(client);

    }

    private void getConversation(NexmoClient client) {
        client.getConversation("CONVERSATION_ID", new NexmoRequestListener<NexmoConversation>() {
            @Override
            public void onSuccess(@Nullable NexmoConversation conversation) {
                Timber.d("Conversation loaded");

                HashMap<String, Object> data = new HashMap<>();
                data.put("key", "data");
                sendCustomEvent(conversation, "my_custom_event", data);
            }

            @Override
            public void onError(@NonNull NexmoApiError apiError) {
                Timber.d("Error: Unable to load conversation %s", apiError.getMessage());
            }
        });
    }

    private void sendCustomEvent(@NonNull NexmoConversation conversation, String eventType, HashMap<String, Object> data) {
        conversation.sendCustomEvent(eventType, data, new NexmoRequestListener<Void>() {
            public void onSuccess(@Nullable Void p0) {
                Timber.d("Custom event sent");
            }

            public void onError(@NotNull NexmoApiError apiError) {
                Timber.d("Custom event error");
            }
        });
    }
}