ios 目标c中字符串数组中的字符串搜索
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String search in string array in objective c
提问by Filthy Knight
I want to search a specific string in the array of strings in objective c. Can somebody help me in this regard?
我想在目标 c 的字符串数组中搜索特定字符串。有人可以帮我在这方面？
回答by JeremyP
BOOL isTheObjectThere = [myArray containsObject: @"my string"];
or if you need to know where it is
或者如果你需要知道它在哪里
NSUInteger indexOfTheObject = [myArray indexOfObject: @"my string"];
I strongly recommend you read the documentation on NSArray. It's best to do that before posting your question :-)
回答by Rashid
You can use NSPredicate class for searching strings in array of strings. See the below sample code.
您可以使用 NSPredicate 类在字符串数组中搜索字符串。请参阅下面的示例代码。
NSMutableArray *cars = [NSMutableArray arrayWithObjects:@"Maruthi",@"Hyundai", @"Ford", @"Benz", @"BMW",@"Toyota",nil];
NSString *stringToSearch = @"i";
NSPredicate *predicate = [NSPredicate predicateWithFormat:@"SELF contains[c] %@",stringToSearch]; // if you need case sensitive search avoid '[c]' in the predicate
NSArray *results = [cars filteredArrayUsingPredicate:predicate];
This is the most efficient way for searching strings in array of strings
这是在字符串数组中搜索字符串的最有效方法
回答by Rahul K Rajan
NSMutableArray *cars = [NSMutableArray arrayWithObjects:@"Max",@"Hai", @"Fine", @"Bow", @"Bomb",@"Toy",nil];
NSString *searchText = @"i";
NSArray *results = [cars filteredArrayUsingPredicate:predicate];
// if you need case sensitive search avoid '[c]' in the predicate
NSPredicate *resultPredicate = [NSPredicate
predicateWithFormat:@"title contains[c] %@",
searchText];
searchResults = [cars filteredArrayUsingPredicate:resultPredicate];
