How to swipe image change on iPad with less memory and CPU load?

My app has around 100 Picture. Each picture is around 150 KB.And I just want to swipe each picture to开发者_如何学JAVA go next or back to previous pic.

What is the best way that use less memory and CPU load ???

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Assuming you have all images within application, all image names stored in NSMutableArray.

Take one UIImageView wired up as IBOutlet on your XIB file.

NSMutableArray *imgNameArr; //Array to store image names
NSInteger currShowing; //Integer value to keep track of image currently being displayed.

//Function to change image when swipe right
-(void)swipeRight
{
    if(currShowing<[imgNameArr count])
    {
        currShowing+=1;
        self.yourDisplayImageView.image = [UIImage imageNamed:[imgNameArr objectAtIndex:currShowing]];
    }
}

//Function to change image when swipe left
-(void)swipeLeft
{
    if(currShowing>0)
    {
        currShowing-=1;
        self.yourDisplayImageView.image = [UIImage imageNamed:[imgNameArr objectAtIndex:currShowing]];
    }
}

Please do leave comment for any query.

Hope it helps.