ios - Looping thru NSArray of NSString logic -

ios - Looping thru NSArray of NSString logic -

i need help following:

i have nsarray nsstrings, want loop thru these strings , find matching string, when match found strings after match extracted nsdictionary until other match hit.

here example:

nsarray *array = @[@"fruit",@"apple",@"vegtable",@"tomato",@"fruit",@"banana",@"vegtable",@"cucumber"];

so want loop thru array , split in 2 arrays 1 fruit , 1 vegetable.

anyone can help logic?

thanks

this simplest way solve problem:

nsarray *array = @[@"chair",@"fruit",@"apple",@"orange",@"vegetable",@"tomato",@"fruit",@"banana",@"vegetable",@"cucumber"]; nsmutablearray *fruitarray = [nsmutablearray array]; nsmutablearray *vegetablearray = [nsmutablearray array]; nsmutablearray *currenttarget = nil; (nsstring *item in array) { if ([item isequaltostring: @"fruit"]) { currenttarget = fruitarray; } else if ([item isequaltostring: @"vegetable"]) { currenttarget = vegetablearray; } else { [currenttarget addobject: item]; } }

in 1 iteration on array, maintain adding items result array using pointer 1 of 2 result arrays according lastly occurrence of @"fruit" or @"vegetable" string.

this algorithm ignores items before first occurrence of @"fruit" or @"vegetable" string, because currenttarget initialized nil, ignores addobject: messages. if want different behaviour, alter initialization.

you said wanted results in nsdictionary, didn't specify should key. if want 1 nsdictionary 2 keys, fruit , vegetable, , values nsarrays containing items, utilize arrays created:

nsdictionary *dict = @{ @"fruit": fruitarray, @"vegetable": vegetablearray };

ps: have typo in example, vegtable instead of vegetable. corrected in code, maintain in mind.

ios objective-c nsstring nsarray