Merge pull request #300 from dtsolis/answerIncoming

[iOS] Add support for answering incoming call

Author: Sylvain Boily

README.md

@@ -237,7 +237,6 @@ RNCallKeep.displayIncomingCall(uuid, handle, localizedCallerName);
   - `android`: object (currently no-op)
 
 ### answerIncomingCall
-_This feature is available only on Android._
 
 Use this to tell the sdk a user answered a call from the app UI.
 

index.js

@@ -103,9 +103,7 @@ class RNCallKeep {
   };
 
   answerIncomingCall = (uuid) => {
-    if (!isIOS) {
-      RNCallKeepModule.answerIncomingCall(uuid);
-    }
+    RNCallKeepModule.answerIncomingCall(uuid);
   };
 
   startCall = (uuid, handle, contactIdentifier, handleType = 'number', hasVideo = false) => {

ios/RNCallKeep/RNCallKeep.m

@@ -220,6 +220,19 @@ + (void)initCallKitProvider {
     [self requestTransaction:transaction];
 }
 
+RCT_EXPORT_METHOD(answerIncomingCall:(NSString *)uuidString)
+{
+#ifdef DEBUG
+    NSLog(@"[RNCallKeep][answerIncomingCall] uuidString = %@", uuidString);
+#endif
+    NSUUID *uuid = [[NSUUID alloc] initWithUUIDString:uuidString];
+    CXAnswerCallAction *answerCallAction = [[CXAnswerCallAction alloc] initWithCallUUID:uuid];
+    CXTransaction *transaction = [[CXTransaction alloc] init];
+    [transaction addAction:answerCallAction];
+
+    [self requestTransaction:transaction];
+}
+
 RCT_EXPORT_METHOD(endCall:(NSString *)uuidString)
 {
 #ifdef DEBUG