在我的一个课程中,我已从NSMutableArray
更改为NSMutableDictionary
在我从其他类访问对象之前:
tmpDeadline = [_taskDays[i] deadline]; //deadline is a object of another class
并访问了这样的方法:
[_taskDays[datePlace]addDatedTask:d]; //addDatedTask is a method in another class
但是现在我不能再这样做了,因为我遇到了很多我不知道如何处理的错误。
我所知道的是,我想要使用其他课程"截止日期"作为键和类的实例作为对象。
以下是代码(我已经给出了代码,该代码给我提出了注释 ERROR :
#import "LIUTaskCalendar.h"
#import "LIUTaskDay.h"
#import "LIUDatedTask.h"
@interface LIUTaskCalendar ()
{
NSMutableDictionary *_taskDays;
}
@end
@implementation LIUTaskCalendar
- (void)addDatedTasks:(LIUDatedTask *)d {
if (!_taskDays) {
_taskDays = [[NSMutableDictionary alloc] init];
}
NSInteger length = [_taskDays count];
NSDate *tmpDeadline;
NSDate *tmpDueDate;
NSInteger dateExist = 0;
NSInteger datePlace = 0;
NSDate *tmp;
for (int i = 0; i < length; i++) {
tmpDueDate = d.dueDate;
tmpDeadline = [_taskDays[i] deadline]; //*ERROR*
if ([tmpDueDate compare:tmpDeadline] == NSOrderedAscending) {
continue;
} else if ([tmpDueDate compare:tmpDeadline] == NSOrderedDescending) {
continue;
} else {
dateExist = 1;
datePlace = i;
break;
}
}
if (dateExist == 1) {
[_taskDays[datePlace]addDatedTask:d]; //*ERROR*
} else {
LIUTaskDay *tmpLIUTaskDay = [[LIUTaskDay alloc]init];
[tmpLIUTaskDay addDatedTask:d];
tmpLIUTaskDay.deadline = d.dueDate;
//[_taskDays setObject:d forKey:tmpLIUTaskDay.deadline];
[_taskDays addObject:tmpLIUTaskDay]; //*ERROR*
}
}
- (void)removeTaskDay:(NSDate *)date {
NSDate *tmpDeadline;
NSDate *tmpDeleteDate;
NSInteger dateExist = 0;
NSDate *dateDelete;
NSInteger length = [_taskDays count];
for (int i = 0; i < length; i++) {
tmpDeleteDate = date;
tmpDeadline = [_taskDays[i] deadline]; //*ERROR*
if ([tmpDeleteDate compare:tmpDeadline] == NSOrderedAscending) {
continue;
} else if ([tmpDeleteDate compare:tmpDeadline] == NSOrderedDescending) {
continue;
} else {
dateExist = 1;
break;
}
}
if (dateExist == 1) {
//[_taskDays removeObjectForKey:dateDelete];
[_taskDays removeObjectAtIndex:dateDelete]; //*ERROR*
} else {
return;
}
}
@end
如果您需要我提供其他课程的代码,那么请不要这样做 犹豫告诉我。
提前致谢
更新
改变了:
[_taskDays addObject:tmpLIUTaskDay];
对此:
[_taskDays setObject:d forKey:tmpLIUTaskDay.deadline];
答案 0 :(得分:0)
taskDays
是字典,而您正在使用它,就好像它是
_taskDays[i]
一样
tmpDeadline = [_taskDays[i] deadline]; //*ERROR*
也在这里:
[_taskDays addObject:tmpLIUTaskDay]; //*ERROR*
要从字典中提取或添加新的键值对,您应该这样做:
tmpDeadline = [_taskDays[@"taskDay"] deadline];
和
[_taskDays addObject:addObject:tmpLIUTaskDay forKey:@"taskDay"];