ios电话拨打进行监听电话状态

#import "ViewController.h"

#import <CoreTelephony/CTCallCenter.h>

#import <CoreTelephony/CTCall.h>

@interface ViewController ()

@property (nonatomic, strong) CTCallCenter *center;

@property (nonatomic, strong) UIWebView * callView;

@end

@implementation ViewController

- (void)viewDidLoad {

[super viewDidLoad];

UIButton * btn = [[UIButton alloc]initWithFrame:CGRectMake(50, 50, 150, 50)];

btn.backgroundColor = [UIColor redColor];

[btn setTitle:@"拨打电话" forState:UIControlStateNormal];

[btn addTarget:self action:@selector(callBack) forControlEvents:UIControlEventTouchUpInside];

[self.view addSubview:btn];

_center = [[CTCallCenter alloc] init];

_center.callEventHandler = ^(CTCall *call) {

if ([call.callState isEqualToString:CTCallStateDisconnected])

{

NSLog(@"挂断了电话咯Call has been disconnected");

}

else if ([call.callState isEqualToString:CTCallStateConnected])

{

NSLog(@"电话通了Call has just been connected");

}

else if([call.callState isEqualToString:CTCallStateIncoming])

{

NSLog(@"来电话了Call is incoming");

}

else if ([call.callState isEqualToString:CTCallStateDialing])

{

NSLog(@"正在播出电话call is dialing");

}

else

{

NSLog(@"嘛都没做Nothing is done");

}

};

// Do any additional setup after loading the view, typically from a nib.

}

- (void)callBack{

NSString * str=[[NSString alloc] initWithFormat:@"tel:%@",@"18310501773"];

UIWebView * callWebview = [[UIWebView alloc] init];

[callWebview loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:str]]];

[self.view addSubview:callWebview];

}

- (void)didReceiveMemoryWarning {

[super didReceiveMemoryWarning];

// Dispose of any resources that can be recreated.

}

@end