Question

(I have six image view and I want to animate the image randomly for two seconds among them.)

Hello Friends ,
I have six image view with different static images in one view and I want them to animate with the help of

img1.animationImages = [NSArray arrayWithObjects:   
                                    [UIImage imageNamed:imgName],
                                    [UIImage imageNamed:imgName2],
                                    [UIImage imageNamed:imgName],
                                    [UIImage imageNamed:imgName2],
                                    [UIImage imageNamed:imgName],
                                    [UIImage imageNamed:imgName2],

method and I want to select the imageview randomly for two seconds.

What is the best way to do this?

Answer 1

Well to pick a random number from 0,1,2,3,4,5, just do this

randomNumber = arcRandom() % 6;

To “display for two seconds” you need to learn about NSTimer. It is quite simple. Here is a simple define that will do something in a period of time:

#define SCHED( T, S )                                               \
    [NSTimer scheduledTimerWithTimeInterval:T                       \
        target:self selector:@selector(S) userInfo:nil repeats:NO]

So for example:

SCHED( 2.0, eliminateImage );
SCHED( 0.5, fadeToBlack );

in each case you would have to write the routine “eliminateImage” or “fadeToBlack”.