How to filter NSArray using predicate on an object property

Try following lines, and make sure properyName is case sensitive. and you have placed , in predicate format, thats why its not working. just replace your code with following.

Objective C

NSPredicate *bPredicate = [NSPredicate predicateWithFormat:@"SELF.name contains[cd] %@",self.searchText.text];self.filteredArray = [self.hotelArray filteredArrayUsingPredicate:bPredicate];NSLog(@"HERE %@",self.filteredArray);

Swift

var bPredicate: NSPredicate = NSPredicate(format: "SELF.name contains[cd] %@", self.searchText.text)self.filteredArray = self.hotelArray.filteredArrayUsingPredicate(bPredicate)NSLog("HERE %@", self.filteredArray)

Using swift filter

var searchText = "Galaxy"let filteredArray = hotelArray.filter { $0["name"] == searchText }print("** Result ** \n\(filteredArray)")

Swift 3.0

let arrEmp = [["name": "James", "age" : 27, "city" : "New york"],                   ["name": "Johnson", "age" : 24, "city" : "London"],                   ["name": "Alex", "age" : 28, "city" : "Newark"],                   ["name": "Mark", "age" : 25, "city" : "Paris"],                   ["name": "Steve", "age" : 25, "city" : "Silicon Valley"],                   ["name": "Lary", "age" : 28, "city" : "New york"]]// *** Filter by Name exact match ***var filterByName = arrEmp.filter { $0["name"] == "Mark" }print("filterByName \(filterByName)")// *** Filter by Age ***var filterByAge = arrEmp.filter { $0["age"] as! Int >  25 }print("filterByAge \(filterByAge)")

Swift 4.0

var filterByName = arrEmp.filterdo {    $0["name"] == "Mark"}print("filterByName filterByName)")var filterByAge = arrEmp.filterdo {    $0["age"] as! Int > 25}print("filterByAge filterByAge)")

Based on your information, this is your situation:

self.hotelArray      // Array in which we perform a searchself.filteredArray   // Result arrayname                 // Property of the object used for the predicate

This predicate should work for you:

NSString *searchText = self.searchText.text;NSPredicate *predicate = [NSPredicate predicateWithFormat:@"self.name contains[c] %@", searchText];self.filteredArray = [self.hotelArray filteredArrayUsingPredicate:predicate];

This is the predicate method that might work for you.

-(void)filterContentForSearchText:(NSString*)searchText scope:(NSString*)scope{    [filteredContactArray removeAllObjects];    NSArray *tempArray = [hotelArray filteredArrayUsingPredicate:[NSPredicate predicateWithFormat:@"name contains[c] %@ OR name contains[cd] %@",searchText]];    filteredArray = [NSMutableArray arrayWithArray:tempArray];//if you want the filtered array to be mutable or tempArray will work as as desired by you.}

contains[c]- means the predicate with case sensitive.contains[cd]- case insensitive string