NSDate作为customMethod中的参数 [英] NSDate as argument in customMethod

问题描述

我已将自定义方法（ - （void）loadXML {} ）定义到我的appDelegate中。
现在我想在几个viewControllers中使用它;现在我正在使用本地NSDate对象。

I've defined my custom method ( -(void)loadXML {} ) into my appDelegate. Now I'd like to use it in severals viewControllers; Right now I'm using local NSDate objects.

    NSDate *todayDate = [NSDate date];
    NSString *XMLUrl = @"http://localhost/MyApp/GetXML?&aDate=";
    NSString *urlString = [NSString stringWithFormat:@"%@%@", XMLUrl, todayDate];
    tbxml = [[TBXML alloc] initWithURL:[NSURL URLWithString:urlString]];

而不是'todayDate'我想要'selectedDate';另外我如何在我的方法中添加一个bool，需要在我的方法中加入一些条件？

instead of 'todayDate' I'd like to have 'selectedDate'; also how I add a bool to my method, need to have some conditions into my method?

推荐答案

这是你可以做的：

NSDate *selectedDate = ???????; // set this to whatever you want selectedDate to be
BOOL myBoolean = YES;
NSDateFormatter * dateFormat = [[NSDateFormatter alloc] init];

[dateFormat setDateFormat: @"yyyy-MM-dd"]; // or whatever format you wish
NSString *urlString = 
    [NSString stringWithFormat:@"http://localhost/MyApp/GetXML?BOOL=%@&aDate=%@", 
    (myBoolean ? @"YES" : @"NO"), 
    [dateFormatter stringFromDate: selectedDate]];

tbxml = [[TBXML alloc] initWithURL:[NSURL URLWithString:urlString]];
[dateFormatter release]; // don't forget to release, if not using ARC

为了你的利益，我是向您展示如何使用 NSDateFormatter 和通用C三元条件。

And for your benefit, I'm showing you how to use a NSDateFormatter and a generic C ternary conditional.

我希望这能帮到你！

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