iOS监听电话来电、挂断、拨号等
以下,来讲解在app内如何调用打电话功能和监听电话来电、挂断、拨号等功能。
简单的UI布局:
首先,先实现拨打电话的功能,以便于后续测试:
// 拨打电话 - (IBAction)dialingButtonClick:(UIButton *)sender { NSURL *url = [NSURL URLWithString:@"tel:138xxxxxxxx"];// 填入有效电话号码 NSURLRequest *request = [NSURLRequest requestWithURL:url]; UIWebView * callWebview = [[UIWebView alloc] init]; [callWebview loadRequest:request]; [self.view addSubview:callWebview]; }
然后,监听电话,首先需要我们导入一个框架并引入头文件:
// 导入框架 CoreTelephony.framework #import <CoreTelephony/CTCallCenter.h> #import <CoreTelephony/CTCall.h>
监测电话:
// 监测电话 - (void)monitorCall { self.callCenter.callEventHandler = ^(CTCall* call) { if (call.callState == CTCallStateDisconnected) { NSLog(@"电话结束或挂断电话"); } else if (call.callState == CTCallStateConnected){ NSLog(@"电话接通"); } else if(call.callState == CTCallStateIncoming) { NSLog(@"来电话"); } else if (call.callState ==CTCallStateDialing) { NSLog(@"拨号打电话(在应用内调用打电话功能)"); } }; } #pragma mark - getter Methods - (CTCallCenter *)callCenter { if (!_callCenter) { _callCenter = [[CTCallCenter alloc] init]; } return _callCenter; }
// 注:值得说明的是,CTCallCenter 呼叫中心必须强引用,防止对象被释放掉而无法监测电话。
场景:
1、点击按钮,拨号时:
2016-06-08 16:38:14.334 Demo_监听电话状态[5732:1781472] applicationWillResignActive 2016-06-08 16:38:15.520 Demo_监听电话状态[5732:1781472] applicationDidBecomeActive 2016-06-08 16:38:15.621 Demo_监听电话状态[5732:1784552] 拨号打电话(在应用内调用打电话功能)
2、手机来电,然后挂断:
2016-06-08 16:40:11.479 Demo_监听电话状态[5732:1785743] 来电话 2016-06-08 16:40:11.819 Demo_监听电话状态[5732:1781472] applicationWillResignActive 2016-06-08 16:40:13.746 Demo_监听电话状态[5732:1785743] 电话结束或挂断电话 2016-06-08 16:40:15.267 Demo_监听电话状态[5732:1781472] applicationDidBecomeActive
3.手机来电,接通,然后挂断:
2016-06-08 16:42:11.479 Demo_监听电话状态[5732:1785743] 来电话 2016-06-08 16:42:11.819 Demo_监听电话状态[5732:1781472] applicationWillResignActive 2016-06-08 16:42:11.919 Demo_监听电话状态[5732:1785743] 电话接通 2016-06-08 16:42:13.746 Demo_监听电话状态[5732:1785743] 电话结束或挂断电话 2016-06-08 16:42:15.267 Demo_监听电话状态[5732:1781472] applicationDidBecomeActive
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