how to do this dynamically

[sindhutiwari]

Hi,
I am having an UIImageView control to which i am assigning a image dynamically now on a button click i want it to get reset i.e remove the image

another one is

i am using a NSMutalbleArray capacity 10 to which i am assigning strings

like [listOfContents addObject:NSLocalizedString(@"c1.png", @"")][listOfContents addObject:NSLocalizedString(@"c2.png", @"")][listOfContents addObject:NSLocalizedString(@"c3.png", @"")][listOfContents addObject:NSLocalizedString(@"c4.png", @"")]

this tells me that index 1 is having c1.png , 2 is c2.png so on..
now after assigning up to 4 i want to remove that 4th element

in simple words i want to set the index 4 value to nil and again when i assign any value it has to be assigned to 4 position

I will be thankful for the help

Thanks and Regards

sindhu tiwari

[xnakx]

huh?

sorry man i don't get what you are trying to accomplish.
you only want 4 items in the array at any given time?

[david_david]

can't you replace like [array replaceObjectAtIndex:4 withObject:nil];

If you want to always reset the last element then remove object and addObject again

[Ossifrage]

UIImageView extends from UIView, so see https://developer.apple.com/iphone/l.../UIView/hidden which should probably do what you want

Meanwhile, for the array, my first thought is to ask what your high level goal is, since this sounds an odd thing to require (hence I have a feeling there might be a better solution).

But, if you really want to, I suggest making a class with an internal NSMutableArray and an addObject method that checks the length of the internal array, and if less than 4, calls addObject on the array, otherwise calls replaceObjectAtIndex:withObject:

[sindhutiwari]

hi

Array problem is clear now

for the image

i will give an example I am having five UIImageView in my view

now i have assigned a image to the UIImageview1 on a button click

again when another button lets say reset is clicked the UIImageview1 has to be set to empty , Hiding is a good idea but how to assign a nil image to that control

[Ossifrage]

Define "nil image"? You mean like...as if the UIImageView were hidden...?