我想简单地向可变数组添加对象,但是它们不会插入。我没有得到错误或任何提示,也无法弄清楚发生了什么。
在我的主代理文件中,我将一个数组拆分成了4个单独的字符串,像这样:
NSArray *split=[currentParsedCharacterData componentsSeparatedByString:@"|"];
NSLog([split objectAtIndex:3]);
NSString *date=[split objectAtIndex:0];
NSString *venue=[split objectAtIndex:1];
NSString *event=[split objectAtIndex:2];
NSString *city=[split objectAtIndex:3];
我已经追踪了字符串值并且它们确实存在。
接下来,我尝试将这些字符串值添加到可变数组中。
[self.promoTabOptionEvents.dates addObject:date];
[self.promoTabOptionEvents.venues addObject:venue];
[self.promoTabOptionEvents.event addObject:event];
[self.promoTabOptionEvents.city addObject:city];
当我在调试器中检查数组时,它们是空的。我做错了什么?
promoTabOptionEvents类像这样:
导入
@interface PromoTabOptionEvents : UIViewController {
NSString *event_headline;
NSMutableArray *dates;
NSMutableArray *venues;
NSMutableArray *event;
NSMutableArray *city;
}
@property(nonatomic,retain)NSString *event_headline;
@property(nonatomic,retain)NSMutableArray *dates;
@property(nonatomic,retain)NSMutableArray *venues;
@property(nonatomic,retain)NSMutableArray *event;
@property(nonatomic,retain)NSMutableArray *city;
-(void)applyLabels;
-(id)initWithTabBar;
@end
#import "PromoTabOptionEvents.h"
@implementation PromoTabOptionEvents
@synthesize event_headline;
@synthesize dates;
@synthesize venues;
@synthesize event;
@synthesize city;
-(id) initWithTabBar {
if ([self init]) {
//this is the label on the tab button itself
//self.title = @"Tab1";
//use whatever image you want and add it to your project
self.tabBarItem.image = [UIImage imageNamed:@"events.png"];
// set the long name shown in the navigation bar
self.navigationItem.title=@"Events";
CGRect bgframe;
bgframe.size.width=320; bgframe.size.height=460;
bgframe.origin.x=0; bgframe.origin.y=0;
UIImage* bgimage = [UIImage imageNamed:@"eventsbig.png"];
UIImageView *imagebgview = [[UIImageView alloc] initWithImage: bgimage];
imagebgview.frame=bgframe;
imagebgview.contentMode=UIViewContentModeScaleAspectFit;
self.view.backgroundColor=[UIColor whiteColor];
[self.view addSubview:imagebgview];
}
return self;
}