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