ios – 查询解析containsString不敏感

我想知道有人能帮忙吗？我正在尝试使用SearchBar搜索Parse课程中的术语.然而,containsstring区分大小写,我希望它不区分大小写.请参阅下面的代码;

-(void)filterResults:(Nsstring *)searchTerm {

[self.searchResults removeAllObjects];
PFQuery *query = [PFQuery queryWithClassName: @"Firefacts"];
[query whereKeyExists:@"Number"];
[query whereKey:@"Number" containsstring:searchTerm];
NSArray *results = [query findobjects];
[self.searchResults addobjectsFromArray:results];
}

任何帮助将不胜感激.

解决方法

使用正则表达式(？i)而不是！信用额度为 https://stackoverflow.com/a/9655203/2398886,https://stackoverflow.com/a/9655186/2398886和 http://www.regular-expressions.info/modifiers.html

所以更换

[query whereKey:@"Number" containsstring:searchTerm];

同

[query whereKey:@"Number" matchesRegex:[Nsstring stringWithFormat:@"(?i)%@",searchTerm]];

或者你也可以使用

[query whereKey:@"Number" matchesRegex:searchTerm modifiers:@"i"];

您的最终代码应该是：

PFQuery *query = [PFQuery queryWithClassName: @"Firefacts"];
[query whereKeyExists:@"Number"];
[query whereKey:@"Number" matchesRegex:searchTerm modifiers:@"i"];

原文地址：https://www.jb51.cc/iOS/336232.html