ios - 如何从 ios 应用程序调用电话号码？

Question

<分区>

Answer 1

您的代码是正确的。您是否 checkin 了真实设备。此功能在模拟器中不起作用。

也试试这个，

NSString *phNo = @"+919876543210";
NSURL *phoneUrl = [NSURL URLWithString:[NSString  stringWithFormat:@"telprompt:%@",phNo]];

    if ([[UIApplication sharedApplication] canOpenURL:phoneUrl]) {
        [[UIApplication sharedApplication] openURL:phoneUrl];
    } else
    {
        calert = [[UIAlertView alloc]initWithTitle:@"Alert" message:@"Call facility is not available!!!" delegate:nil cancelButtonTitle:@"ok" otherButtonTitles:nil, nil];
        [calert show];
    }

** Swift 3 版本**

if let url = URL(string: "telprompt:\(phoneNumber)") {
  if UIApplication.shared.canOpenURL(url) {
    UIApplication.shared.open(call, options: []) { result in
       // do something with result
    }
  }
}