Initialize multiple objects with different name - iphone

Question

How can I Initialize and allocate multiple objects with different name and pass it to the NSArray. from Below code the object is initialized once in loop and I need to initialized multiple times as per the For loop will go with different name..and then pass it to NSArray.please check the code below..
when For loop will start means i=0 ..initialized item would betempItemi
now next time when i=1 and i=2 the tempItemi name will be same .how can i change this with in loop..and pass it to NSArray *items
for (int i = 0; i< [Array count]; i++)
{
id object = [Array objectAtIndex:i];
if ([object isKindOfClass:[NSDictionary class]])
{
NSDictionary *objDict = (NSDictionary *)object;
ECGraphItem *tempItemi = [[ECGraphItem alloc]init];
NSString *str = [objDict objectForKey:#"title"];
NSLog(#"str value%#",str);
float f=[str floatValue];
tempItemi.isPercentage=YES;
tempItemi.yValue=f;
tempItemi.width=30;
NSArray *items = [[NSArray alloc] initWithObjects:tempItemi,nil];
//in array need to pass all the initialized values
[graph drawHistogramWithItems:items lineWidth:2 color:[UIColor blackColor]];
}
}

Answer 1

Why dont you just make the array mutable and then add the object each time like this:
NSMutableArray *items = [[NSMutableArray alloc] init];
// a mutable array means you can add objects to it!
for (int i = 0; i< [Array count]; i++)
{
id object = [Array objectAtIndex:i];
if ([object isKindOfClass:[NSDictionary class]])
{
NSDictionary *objDict = (NSDictionary *)object;
ECGraphItem *tempItemi = [[ECGraphItem alloc]init];
NSString *str = [objDict objectForKey:#"title"];
NSLog(#"str value%#",str);
float f=[str floatValue];
tempItemi.isPercentage=YES;
tempItemi.yValue=f;
tempItemi.width=30;
[items addObject: tempItemi];
//in array need to pass all the initialized values
}
}
[graph drawHistogramWithItems:items lineWidth:2 color:[UIColor blackColor]];
Anyways items in your original code will be reinitializing each time and you are drawing a new histogram each time so your code won't work... This should work...

Answer 2

The code you have written is ok but,
NSArray *items will always contain only one item at each loop.
just declare that outside for loop as NSMutableArray,
and go with the same code you are using.

Answer 3

As you said you want to make variable dynamically as
ECGraphItem *tempItemi = [[ECGraphItem alloc]init];
here i will be changing in the loop,
You can create a NSDictionary with key/value as per with your tempItem1/2/3/4.... as key and save values by alloc/init.
Then instead of a variable tempItem32, you will be using [dict valueForKey:#"tempItem32"].
EDIT:
Check this example if this may come handy
NSMutableDictionary *dict=[NSMutableDictionary new];
for (int i=1; i<11; i++) {
NSString *string=[NSString stringWithFormat:#"string%d",i];
[dict setObject:[NSString stringWithFormat:#"%d", i*i] forKey:string];
}
NSLog(#"dict is %#",dict);
NSString *fetch=#"string5";
NSLog(#"val:%#, for:%#",[dict valueForKey:fetch],fetch);