which take less memory, uiimage and image with content of file in iPhone

Question

I am using HD images and my memory is full after some times, I am update my images with UIImage *image = [UIImage imageNamed:@""];, is it right in terms of memory?

Answer 1

[UIImage imageNamed:] caches the image. Try using [UIImage imageWithData:] instead.

Answer 2

Yes, it is working. In our app we compared with another method like

1)

[self.view setBackgroundColor:[UIColor colorWithPatternImage:
    [UIImage imageWithContentsOfFile:[
        [NSBundle mainBundle] pathForResource:@"mainScreenBackground" ofType:@"png"]]]];

taken memory usage 22 mb

2)

[self.view setBackgroundColor:[UIColor colorWithPatternImage:
    [UIImage imageWithData:
        [NSData ] pathForResource:@"mainScreenBackground" ofType:@"png"]]]];

taken memory usage 15mb
thanks alot