以编程方式将uibutton添加到详细视图

Question

如何添加一个可以显示电话号码的uibutton并呼叫该号码，以自动方式从每个表视图单元的数组中加载数据

Answer 1

苹果文档告诉您使用tel：// url方案。 而这个线程

举一个很好的例子：

NSString *phoneStr = [NSString stringWithFormat:@"tel:%@",[self.contactDetails objectForKey:@"phone"]];
NSString *escaped = [phoneStr stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:escaped]];

Answer 2

在每个单元格中放置一个按钮，并将文本设置为数组中的电话号码。 然后，在按钮的按下选择器上，调用URL tel:<PHONE NUMBER>:

- (UITableViewCell *)cellForRowAtIndexPath:(NSIndexPath *)indexPath {
    ...
    UIButton *callButton = [UIButton buttonWithType:UIButtonTypeRoundedRect];
    [callButton addTarget:self selector:@selector(callButtonPressed:)];
    [callButton setTitle:@"<PHONE NUMBER>"];
    [cell addSubview:callButton];
}

- (void)callButtonPressed:(id)sender {
    NSString *phoneURLAsString = [NSString stringWithFormat:@"tel:%@", sender.currentTitle];
    NSString *escapedPhoneURLAsString = [phoneURLAsString stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
    [[UIApplication sharedApplication] openURL:[NSURL URLWithString:escapedPhoneURLAsString]];
}