Question

所以，我一直试图让NSPredicate工作，它应该。但它没有赢。我决定循环使用这个数组来测试它是怎么来的，而且我已经通过测试达到了这一点

- (void)getItemsForGroup:(NSString *)groupID completion:(MenuQueryBlock)completion{

 ...

    for (NSDictionary *group in [[[[[[self.singleMenuSet objectForKey:@"menuList"] firstObject] objectForKey:@"UnitMenu"] objectForKey:@"data"] objectForKey:@"groups"] objectForKey:@"group"]) {
        NSLog(@"test");
        NSLog(@"Group MasterGID: %@",[group objectForKey:@"MasterGID"]);
        NSLog(@"test_ MasterGID: %@",groupID);

        if ([[group objectForKey:@"MasterGID"] isEqualToString:groupID]) {
            NSLog(@"Selected Group: %@",group);
        }
    }
....
completion(....)
}

这是日志的一部分＆＃34; Selected Group＆＃34;应该打印。

 2015-09-02 11:42:24.738 business_sect[3687:144610] test_ MasterGID: 24000040
 2015-09-02 11:42:24.738 business_sect[3687:144610] test
 2015-09-02 11:42:24.738 business_sect[3687:144610] Group MasterGID: 24000039
 2015-09-02 11:42:24.738 business_sect[3687:144610] test_ MasterGID: 24000040
 2015-09-02 11:42:24.738 business_sect[3687:144610] test
 2015-09-02 11:42:24.738 business_sect[3687:144610] Group MasterGID: 24000040
 2015-09-02 11:42:24.738 business_sect[3687:144610] test_ MasterGID: 24000040   <----right after this line
 2015-09-02 11:42:24.738 business_sect[3687:144610] test
 2015-09-02 11:42:24.739 business_sect[3687:144610] Group MasterGID: 24000041     
 2015-09-02 11:42:24.739 business_sect[3687:144610] test_ MasterGID: 24000040
 2015-09-02 11:42:24.739 business_sect[3687:144610] test
 2015-09-02 11:42:24.739 business_sect[3687:144610] Group MasterGID: 24000042
 2015-09-02 11:42:24.739 business_sect[3687:144610] test_ MasterGID: 24000040
 2015-09-02 11:42:24.739 business_sect[3687:144610] test
 2015-09-02 11:42:24.739 business_sect[3687:144610] Group MasterGID: 24000043
 2015-09-02 11:42:24.739 business_sect[3687:144610] test_ MasterGID: 24000040

那么为什么选择小组＆＃34;＆＃34;选择小组＆＃34;印刷？

Answer 1

你能试试吗？

    if ([(NSString *)group[@"MasterGID"] hash] == groupID.hash) {
        NSLog(@"Selected Group: %@",group);
    }

NSString测试在它应该的时候不会评估为真

1 个答案: