ios - 在 objective-c 中使用日期月份和年份对日期数组进行排序

Question

我想用日期对数组进行排序，但日期只按日期和月份排序，而不按年份排序我的代码:

NSArray *sortedArray = [arrClassSehedule sortedArrayUsingComparator:^NSComparisonResult(NSDictionary *obj1, NSDictionary *obj2) {
    NSDate *d1 = [appSharedData.CommanFormatForConditional dateFromString: [obj1 objectForKey:@"scheduleStart"]];
    NSDate *d2 = [appSharedData.CommanFormatForConditional dateFromString: [obj1 objectForKey:@"scheduleStart"]];
    return [d1 compare: d2];
}];

它没有按日期正确排序。

Answer 1

好像打错了。

请将代码替换为

 NSDate *d2 = [appSharedData.CommanFormatForConditional dateFromString: [obj2 objectForKey:@"scheduleStart"]];