Question

如果我从我的应用程序拨打电话，我无法检测到呼叫结束（状态CallStateDisconnected）。但如果我的应用程序处于活动状态时接到电话，我可以检测到该状态。当我的应用程序启动呼叫时，我还会收到状态CTCallStateDialing两次或三次。它曾经在iOS5下工作，这个问题出现在iOS6上。

我的应用程序代码;

 self.callCenter = [[CTCallCenter alloc] init];
self.callCenter.callEventHandler = ^(CTCall* call) {

    // anounce that we've had a state change in our call center
    NSDictionary *dict = [NSDictionary dictionaryWithObject:call.callState forKey:@"callState"]; //BREAKPOINT HERE

    [[NSNotificationCenter defaultCenter] postNotificationName:@"CTCallStateDidChange" object:self userInfo:dict]; 

};

奇怪的是它一切正常，如果我在callEventHandler块中放置断点并在调用完成后恢复执行，那么我正确地获得CallStateDisconnected。

然后我在视图控制器中订阅通知，并在收到它时执行此代码：

- (void)ctCallStateDidChange1:(NSNotification *)notification
 {
  NSString *call = [[notification userInfo] objectForKey:@"callState"];


if ([call isEqualToString:CTCallStateDisconnected])
{
    NSLog(@"Call has been disconnected");

}
else if([call isEqualToString:CTCallStateDialing])
{

    NSLog(@"Call start");
}
else if ([call isEqualToString:CTCallStateConnected])
{
    NSLog(@"Call has just been connected");
}
else if([call isEqualToString:CTCallStateIncoming])
{
    NSLog(@"Call is incoming");
}
else
{
    NSLog(@"None");
}

}

我可以通过我的应用程序拨打电话：

        UIWebView *callWebview = [[UIWebView alloc] init];
        [self.view addSubview:callWebview];
        NSURL *telURL = [NSURL URLWithString:number];
        [callWebview loadRequest:[NSURLRequest requestWithURL:telURL]];

我还记录了应用状态，然后收到- (void)applicationDidBecomeActive:(UIApplication *)application

在我开始通话后，我转到- (void)applicationDidEnterBackground:(UIApplication *)application

并且在通话结束后返回- (void)applicationDidBecomeActive:(UIApplication *)application.

奇怪的是，在调用之后和进入后台之前调用了DidBecomeActive吗？

Answer 1

以下是iOS 5手机的日志：

2012-12-02 22:00:00.252 TestPhone[2297:707] didFinishLaunchingWithOptions:
2012-12-02 22:00:00.352 TestPhone[2297:707] applicationDidBecomeActive:
2012-12-02 22:00:06.708 TestPhone[2297:707] applicationWillResignActive:
2012-12-02 22:00:10.582 TestPhone[2297:1c03] Call start
2012-12-02 22:00:11.016 TestPhone[2297:707] applicationDidBecomeActive:
2012-12-02 22:00:12.536 TestPhone[2297:707] applicationWillResignActive:
2012-12-02 22:00:12.564 TestPhone[2297:707] applicationDidEnterBackground:
2012-12-02 22:00:36.543 TestPhone[2297:707] applicationWillEnterForeground:
2012-12-02 22:00:36.769 TestPhone[2297:707] applicationDidBecomeActive:
2012-12-02 22:00:36.840 TestPhone[2297:2e07] Call has been disconnected
2012-12-02 22:00:36.854 TestPhone[2297:707] applicationWillResignActive:
2012-12-02 22:00:49.885 TestPhone[2297:707] applicationDidBecomeActive:

这是来自iOS 6手机的日志：

2012-12-03 06:27:55.401 TestPhone[7734:907] didFinishLaunchingWithOptions:
2012-12-03 06:27:55.462 TestPhone[7734:907] applicationDidBecomeActive:
2012-12-03 06:28:01.396 TestPhone[7734:907] applicationWillResignActive:
2012-12-03 06:28:04.345 TestPhone[7734:907] applicationDidBecomeActive:
2012-12-03 06:28:04.401 TestPhone[7734:1803] Call start
2012-12-03 06:28:05.824 TestPhone[7734:907] applicationWillResignActive:
2012-12-03 06:28:05.826 TestPhone[7734:907] applicationDidEnterBackground:
2012-12-03 06:28:17.318 TestPhone[7734:907] applicationWillEnterForeground:
2012-12-03 06:28:17.329 TestPhone[7734:907] applicationDidBecomeActive:

“已断开连接”消息刚刚消失。（这不是一个答案，这是一个观察。）

这是我使用的代码。我在xcode中创建了一个单视图应用程序，在xib中只有一个按钮，这就是我的整个UIViewController：

- (void)viewDidLoad {
    [super viewDidLoad];
    self.callCenter = [[CTCallCenter alloc] init];
    self.callCenter.callEventHandler = ^(CTCall* myCall) {
        NSString *call = myCall.callState;
        if ([call isEqualToString:CTCallStateDisconnected])
            NSLog(@"Call has been disconnected");
        else if([call isEqualToString:CTCallStateDialing]) 
            NSLog(@"Call start");
        else if ([call isEqualToString:CTCallStateConnected])
            NSLog(@"Call has just been connected");
        else if([call isEqualToString:CTCallStateIncoming])
            NSLog(@"Call is incoming");
        else
            NSLog(@"None");
    };
}

- (IBAction)callButtonPressed:(id)sender {
    NSString *number = @"tel:01234567890";
    UIWebView *callWebview = [[UIWebView alloc] init];
    callWebview.frame = self.view.frame;    
    [self.view addSubview:callWebview];
    NSURL *telURL = [NSURL URLWithString:number];
    [callWebview loadRequest:[NSURLRequest requestWithURL:telURL]];
}
@end

CallStateDisconnected仅检测到来电，而不是来自我的应用的呼叫

1 个答案: