CallKeep: A Developer's Guide to Native Call Handling

1import CallKit
2
3func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
4    // Configure CallKit
5    let providerConfiguration = CXProviderConfiguration(localizedName: "Your App Name")
6    providerConfiguration.supportsVideo = true
7    providerConfiguration.maximumCallsPerCallGroup = 1
8    
9    let provider = CXProvider(configuration: providerConfiguration)
10    provider.setDelegate(self as? CXProviderDelegate, queue: nil)
11
12    return true
13}
14
15
16func providerDidReset(_ provider: CXProvider) {
17    // Handle provider reset
18}
19

1import android.telecom.Connection;
2import android.telecom.ConnectionService;
3import android.telecom.PhoneAccountHandle;
4import android.telecom.TelecomManager;
5import android.content.Intent;
6import android.os.Bundle;
7
8public class MyConnectionService extends ConnectionService {
9
10    @Override
11    public Connection onCreateIncomingConnection(PhoneAccountHandle connectionManagerPhoneAccount, android.telecom.ConnectionRequest request) {
12        Connection connection = new Connection() {};
13        connection.setConnectionCapabilities(Connection.CAPABILITY_MUTE | Connection.CAPABILITY_SUPPORT_HOLD);
14        connection.setConnectionProperties(Connection.PROPERTY_SELF_MANAGED);
15
16        // ... (Handle incoming connection logic here)
17
18        return connection;
19    }
20
21    @Override
22    public void onCreateOutgoingConnection(PhoneAccountHandle connectionManagerPhoneAccount, android.telecom.ConnectionRequest request) {
23        Connection connection = new Connection() {};
24        connection.setConnectionCapabilities(Connection.CAPABILITY_MUTE | Connection.CAPABILITY_SUPPORT_HOLD);
25        connection.setConnectionProperties(Connection.PROPERTY_SELF_MANAGED);
26        // ... (Handle outgoing connection logic here)
27
28    }
29}
30

1// Example of handling call state changes
2CallKeep.addEventListener('didReceiveStartCallAction', ({ handle }) => {
3  console.log('Incoming call from:', handle);
4  // Update UI to display incoming call
5});
6
7CallKeep.addEventListener('answerCall', ({ callUUID }) => {
8  console.log('Call answered:', callUUID);
9  // Start call session with VoIP provider
10});
11
12CallKeep.addEventListener('endCall', ({ callUUID }) => {
13  console.log('Call ended:', callUUID);
14  // End call session with VoIP provider
15});
16

1CallKeep.addEventListener('answerCall', ({ callUUID }) => {
2  console.log('Answering call:', callUUID);
3  // Connect to VoIP service
4});
5
6CallKeep.addEventListener('rejectCall', ({ callUUID }) => {
7  console.log('Rejecting call:', callUUID);
8  // Disconnect from VoIP service
9});
10
11CallKeep.addEventListener('endCall', ({ callUUID, reason }) => {
12    console.log(`Call ended: ${callUUID} with reason ${reason}`);
13    //Clean up the call
14});
15

1// Example of displaying caller ID
2CallKeep.displayIncomingCall('callUUID', 'phoneNumber', 'Caller Name');
3

1//Ensure background mode is enabled in Xcode for iOS
2//Handle VoIP push notifications to wake up the app and display incoming call UI
3