我在排序方面遇到了问题。
数据是这样的
NSArray* testArr = @[@{@"key":@"aaa", @"value":@"asdfaf"},
@{@"key":@"baa", @"value":@"bsdfaf"},
@{@"key":@"!!aaa", @"value":@"adsfdfaf"},
@{@"key":@"123aaa", @"value":@"cecdfaf"},
@{@"key":@"@@#21", @"value":@"a42faf"},
@{@"key":@"ace", @"value":@"a123faf"},
@{@"key":@"321!!", @"value":@"123sdfaf"},
];
而 NSSortDescriptor 是这样的
NSLocale *locale = [NSLocale autoupdatingCurrentLocale];
NSSortDescriptor *sortUsingNameDescriptor = [[NSSortDescriptor alloc] initWithKey:@"key" ascending:YES comparator:^NSComparisonResult(id obj1, id obj2) {
NSStringCompareOptions comparisonOptions = NSCaseInsensitiveSearch | NSWidthInsensitiveSearch | NSForcedOrderingSearch | NSNumericSearch;
NSRange stringRange = NSMakeRange(0, ((NSString *)obj1).length);
return [(NSString*)obj1 compare:(NSString*) obj2 options:comparisonOptions range:stringRange locale:locale];
}];
这是结果。
{
key = "!!aaa";
value = adsfdfaf;
},
{
key = "@@#21";
value = a42faf;
},
{
key = 123aaa;
value = cecdfaf;
},
{
key = "321!!";
value = 123sdfaf;
},
{
key = aaa;
value = asdfaf;
},
{
key = ace;
value = a123faf;
},
{
key = baa;
value = bsdfaf;
}
但是我想这样排序
{
key = aaa;
value = asdfaf;
},
{
key = ace;
value = a123faf;
},
{
key = baa;
value = bsdfaf;
},
{
key = 123aaa;
value = cecdfaf;
},
{
key = "321!!";
value = 123sdfaf;
},
{
key = "!!aaa";
value = adsfdfaf;
},
{
key = "@@#21";
value = a42faf;
}
它是字母、数字和特殊字符序列。 我该怎么做
最佳答案
NSSortDescriptor* sortDescriptor = [NSSortDescriptor sortDescriptorWithKey:nil ascending:NO selector:@selector(localizedCompare:)];
NSArray* sortedArray = [inFileTypes sortedArrayUsingDescriptors:[NSArray arrayWithObject:sortDescriptor]];
关于ios - 使用 NSSortDescriptor 排序,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/30752009/