Cannot get Receiver to be selected audio device

[eharmshoagie]

Using the following code, I cannot set the audio output to Receiver. I can get the Bluetooth and Speaker to be selected, and Bluetooth is always the priority.

Is there something I am doing wrong that is preventing the Receiver to be chosen? I can verify the Selected deviceType matches the strings in the if statement.

When selecting Handset, I get the" Successfully switched to handset (earpiece)" NSLog but Speaker gets selected

Your demo app always selects Speaker.

I am using pod 'AmazonChimeSDK', '0.26.1'

RCT_EXPORT_METHOD(setAudioOutput:(NSDictionary *)outputDevice
                  resolver:(RCTPromiseResolveBlock)resolve
                  rejecter:(RCTPromiseRejectBlock)reject) {
    // Extract the deviceType from the outputDevice dictionary
    NSString *deviceType = outputDevice[@"type"];
    NSLog(@"Selected deviceType: %@", deviceType);
    
    AVAudioSession *session = [AVAudioSession sharedInstance];
    NSError *error = nil;

    // Set the AVAudioSession category to handle both input and output devices.
    BOOL success = [session setCategory:AVAudioSessionCategoryPlayAndRecord
                            withOptions:AVAudioSessionCategoryOptionDefaultToSpeaker
                                  error:&error];
    if (!success || error) {
        reject(@"session_error", @"Failed to set audio session category", error);
        return;
    }

    // Activate the audio session to apply changes
    NSError *activationError = nil;
    BOOL isSessionActivated = [session setActive:YES error:&activationError];
    if (!isSessionActivated || activationError) {
        NSLog(@"Failed to activate audio session: %@", activationError);
        reject(@"session_activation_error", @"Failed to activate audio session", activationError);
        return;
    }

    // Handle switching output based on deviceType
    if ([deviceType isEqualToString:@"BUILTIN_SPEAKER"]) {
        // Set output to the built-in speaker
        success = [session overrideOutputAudioPort:AVAudioSessionPortOverrideSpeaker error:&error];
        if (success) {
            NSLog(@"Successfully switched to built-in speaker");
            resolve(@{@"selected": @"built-in speaker"});
        } else {
            NSLog(@"Error switching to built-in speaker: %@", error);
            reject(@"output_error", @"Failed to set speaker as audio output", error);
        }
    } 
    else if ([deviceType isEqualToString:@"BLUETOOTH"]) {
        // Set the audio session to allow Bluetooth input/output
        success = [session setCategory:AVAudioSessionCategoryPlayAndRecord
                            withOptions:AVAudioSessionCategoryOptionAllowBluetooth
                                  error:&error];
        if (success) {
            NSLog(@"Successfully switched to Bluetooth");
            resolve(@{@"selected": @"bluetooth"});
        } else {
            NSLog(@"Error switching to Bluetooth: %@", error);
            reject(@"output_error", @"Failed to set Bluetooth audio output", error);
        }
    } 
    else {
        // Explicitly select the handset (earpiece) without overriding the default to Bluetooth
        NSArray<AVAudioSessionPortDescription *> *availableOutputs = session.currentRoute.outputs;
        AVAudioSessionPortDescription *handsetPort = nil;
        
        // Find the correct handset port (the earpiece or receiver)
        for (AVAudioSessionPortDescription *port in availableOutputs) {
            if ([port.portType isEqualToString:AVAudioSessionPortBuiltInReceiver]) {
                handsetPort = port;
                break;
            }
        }

        if (handsetPort) {
            // Explicitly set the earpiece (handset) as the output
            success = [session setPreferredInput:handsetPort error:&error];
            if (success) {
                NSLog(@"Successfully switched to handset (earpiece)");
                resolve(@{@"selected": @"handset"});
            } else {
                NSLog(@"Error switching to handset: %@", error);
                reject(@"output_error", @"Failed to set handset as audio output", error);
            }
        } else {
            NSLog(@"Handset not found.");
            reject(@"output_error", @"Handset not found in available outputs", nil);
        }
    }
}