[
{"theKeyOne" :"One"},
{"theKeyTwo" :"Two"},
{"theKeyThree":"Three"},
],
I want use String for predicateWithFormat to NSPredicate
for example
NSPredicate *predicate = [NSPredicate predicateWithFormat:@"(%@ == %@)", @"theKeyTwo", @"theKeyTwo"];
the code, I think only output {"theKeyTwo" :"Two"}
but output allInfo.
the first Index is {"theKeyOne" :"One"}
!!!
I want to get Two
for theKeyTwo
I just know the
theKeyTwo
How should I use it for NSPredicate
?
Well, try with this :)
NSMutableDictionary *object1 = [[NSMutableDictionary alloc] init];
[object1 setValue: @"One" forKey: @"theKeyOne"];
[object1 setValue: @"Two" forKey: @"theKeyTwo"];
[object1 setValue: @"Three" forKey: @"theKeyThree"];
[object1 setValue: @"Four" forKey: @"theKeyFour"];
// Getting the value using the key
NSString *valueOfKey = [object1 valueForKey: @"theKeyTwo"];
// Making the predicate using the value of key string
NSPredicate *pred2 = [NSPredicate predicateWithFormat: @"theKeyTwo MATCHES[c] %@", valueOfKey];