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];