iOS拨打电话的2种方式

方式一：直接拨打，不提示

NSMutableString * str=[[NSMutableString alloc] initWithFormat:@"tel:%@",@"13800138000"];

    [[UIApplication sharedApplication] openURL:[NSURL URLWithString:str]];

方式二：先提示

NSMutableString * str=[[NSMutableString alloc] initWithFormat:@"tel:%@",@"13800138000"];

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

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

    [self.view addSubview:callWebview];