Ios 导航栏中的调用按钮

拥有一个按距离排序的

NSMutableArray

。因此，我需要在

UINavigationBar

（右键）中设置一个调用按钮或标签，并使用字典和valueKey实现调用功能。我怎样才能实现它

下面是我正在使用的代码：

- (void)updateViewWithDict:(NSDictionary*)dic {
    NSString *str = [NSString stringWithFormat:@"%@\nAddress: %@\nPhone: %@\n\nWorkTime:\n%@", [dic valueForKey:@"name"], [dic valueForKey:@"address"], [dic valueForKey:@"phone"], [dic valueForKey:@"workTime"]];

    UILabel *nameLabel = [[UILabel alloc] initWithFrame:CGRectMake(20, 110, 300, 140)];
    nameLabel.textAlignment = NSTextAlignmentLeft;
    nameLabel.numberOfLines = 0;
    nameLabel.text = str;
    nameLabel.textColor = [UIColor whiteColor];
    nameLabel.font = [UIFont fontWithName:@"HelveticaNeue" size:14.0];

    UIBarButtonItem *callButton = [[UIBarButtonItem alloc] initWithTitle:@"Call"
                    style:UIBarButtonItemStyleDone target:nil action:nil]; 

    self.navigationItem.rightBarButtonItem = callButton;
}

我无法获取如何将

NSURL

分配给我的按钮

我试着使用这样的代码。。但是接下来呢

[[UIApplication sharedApplication] openURL:[NSURL URLWithString:[NSString stringWithFormat:@"tel://%@",[dic valueForKey:@"phone"]]]];

===

解决方案：-我找到了如下方法：

在

-（void）updateViewWithDict:（NSDictionary*）dic中，我编写了if语句

if ([[dic valueForKey:@"phone"]  isEqual: @"12345"]){

        UIBarButtonItem *callButton = [[UIBarButtonItem alloc] initWithTitle:@"Call" style:UIBarButtonItemStyleDone target:self action:@selector(FirstOffice:)];

       self.navigationItem.rightBarButtonItem = callButton;

    }

    else if ([[dic valueForKey:@"phone"]  isEqual: @"67890]){

        UIBarButtonItem *callButton2 = [[UIBarButtonItem alloc] initWithTitle:@"Call" style:UIBarButtonItemStyleDone target:self action:@selector(SecondOffice:)];

        self.navigationItem.rightBarButtonItem = callButton2;
    }

还有像这样的方法

- (void)FirstOffice:(UIBarButtonItem*)sender {
    [[UIApplication sharedApplication] openURL:[NSURL URLWithString:[NSString stringWithFormat:@"tel://12345"]]];
}

- (void)SecondOffice:(UIBarButtonItem*)sender {
    [[UIApplication sharedApplication] openURL:[NSURL URLWithString:[NSString stringWithFormat:@"tel://67890"]]];
}

也许还有别的办法？更简单的方法？）谢谢单击操作时使用
initWithTitle:style:target:action:
中的
target
和
action
参数：

UIBarButtonItem *callButton = [[UIBarButtonItem alloc] initWithTitle:@"Call" style:UIBarButtonItemStyleDone target:self action:@selector(buttonTapped)];

然后定义方法：

-(void)buttonTapped
{
    [[UIApplication sharedApplication] openURL:[NSURL URLWithString:[NSString stringWithFormat:@"tel://%@",[dic valueForKey:@"phone"]]]];
}

做这个

UIBarButtonItem *callButton = [[UIBarButtonItem alloc] initWithTitle:@"Call"
                style:UIBarButtonItemStyleDone target:self action:@selector(callSomeone:);

并添加方法

- (void)callSomeone:(UIBarButtonItem*)sender {
    [[UIApplication sharedApplication] openURL:[NSURL URLWithString:[NSString stringWithFormat:@"tel://%@",[dic objectForKey:@"phone"]]]];
}

我尝试了类似的方法，但在void中，当与字典交互时，方法[dic valueForKey…]无法识别…
-objectForKey:
。