How to get more than one NSArray object in NSString using for loop and send that object one by one?

Question

I am new in iOS and I am facing problem regarding to get more the one array in this loop

for (NSString *strDevice in Array1) {
        NSLog(@"Print Your Data = %@",strDevice);
        //Send this strDevice to server in loop one by one.
    }

This loop only convert one array in string and I am not able to access the string outside this loop. I have 9 array

Array1 = [devices valueForKey:@"key1"];
Array2 = [devices valueForKey:@"key2"];
Array3 = [devices valueForKey:@"key3"];
Array4 = [devices valueForKey:@"key4"];
Array5 = [devices valueForKey:@"key5"];
Array6 = [devices valueForKey:@"key6"];
Array7 = [devices valueForKey:@"key7"];
Array8 = [devices valueForKey:@"key8"];
Array9 = [devices valueForKey:@"key9"];

and I need to convert all the array into 9 different string using this loop is it possible?? How can I convert 9 different array in 9 different string.

Note - devices is NSMutableArray from core data and it type is NSString.

Thanks in Advance!

Please add a concrete example what one of the lines returns and what the expected result is. — vadian
– vadian, Commented Dec 16, 2016 at 9:19
@vadian I want to send array element one by one in string format. — Muju
– Muju, Commented Dec 16, 2016 at 9:21
Why don't you try nested loops? It doesn't seem so hard. Try once and then ask for help. — Nikhil Manapure
– Nikhil Manapure, Commented Dec 16, 2016 at 9:21

vadian · Accepted Answer · 2016-12-16 09:28:02Z

If devices comes from Core Data it cannot contain NSString. Either it's NSManagedObject or NSDictionary. I guess it's NSManagedObject.

In this case it's more suitable to use the NSManagedObject as object in the loop and get the values for the nine keys respectively:

for (NSManagedObject *object in devices) {

    NSSString *string1 = [object valueForKey:@"key1"];
    NSSString *string2 = [object valueForKey:@"key2"];
    NSSString *string3 = [object valueForKey:@"key3"];
    NSSString *string4 = [object valueForKey:@"key4"];
    NSSString *string5 = [object valueForKey:@"key5"];
    NSSString *string6 = [object valueForKey:@"key6"];
    NSSString *string7 = [object valueForKey:@"key7"];
    NSSString *string8 = [object valueForKey:@"key8"];
    NSSString *string9 = [object valueForKey:@"key9"];
    // use the strings
}

An alternative is to use an array of NSDictionary from Core Data rather than NSManagedObject

Nikhil Manapure · Accepted Answer · 2016-12-16 09:32:26Z

0

I guess you need this(atleast from your question)-

// Preparation
NSArray *array1 = @[@"one", @"two"];
NSArray *array2 = @[@"three", @"four"];
NSArray *devices = @[array1,array2];

// Real work
for (NSArray *array in devices) {
    for (NSString *strDevice in array) {
        NSLog(@"Print Your Data = %@",strDevice);
        //Send to ur server or do anything you want
    }
}

answered Dec 16, 2016 at 9:32

Nikhil Manapure

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1 Comment

Nikhil Manapure Over a year ago

Tell me if you wanted this way only or not. If you explain your problem more elaborately then we can help you more.

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