如果我从应用程序拨打电话，则无法检测到通话结束(状态为CallStateDisconnected)。但是，如果我在应用程序处于事件状态时接到电话，则可以检测到该状态。当我的应用开始通话时，我还会收到两次或3次的CTCallStateDialing状态。
它曾经在iOS5下运行，而iOS6则出现了此问题。
我的应用程式代号；
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，这一切正常，如果我在callEventHandler块中放置断点并在调用完成后恢复执行，那么我将正确获得CallStateDisconnected。
然后，我在 View Controller 中订阅通知，并在收到通知时执行以下代码:
- (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");
}
}
我从我的应用程序拨打电话，如下所示:
UIWebView *callWebview = [[UIWebView alloc] init];
[self.view addSubview:callWebview];
NSURL *telURL = [NSURL URLWithString:number];
[callWebview loadRequest:[NSURLRequest requestWithURL:telURL]];
我还记录了应用程序状态，并得到了
- (void)applicationDidBecomeActive:(UIApplication *)application开始通话后，我转到
- (void)applicationDidEnterBackground:(UIApplication *)application通话结束后返回
- (void)applicationDidBecomeActive:(UIApplication *)application.奇怪，在调用之后和进入后台之前调用了
DidBecomeActive吗？ 最佳答案
这是来自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:
“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。我用xib中的一个按钮在xcode中创建了一个单 View 应用程序，这就是我的UIViewController的全部内容:
- (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
关于iphone - CallStateDisconnected仅检测到来电，而不检测从我的应用发出的电话，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/13553635/