iphone - Copy From One NSArray to another when generate the Randomly images from First Array -

i developing 1 app in loading images nsmutablearray. generate random images , load uiimageview in ios. want save array after loading array how may this. in advance.

my code below.

//frontscards array

    for(m=0; m<[frontscards count];m++)     {         imgview.alpha=1;          imgview.tag=m;          nslog(@"img view tag %d",imgview.tag);          randidx=arc4random()%[frontscards count];          nsstring *imagename=[frontscards objectatindex:randidx];          nsstring *fullimagename=[nsstring stringwithformat:@"%@",imagename];          int padding=0;          cgrect imageviewframe=cgrectmake(scrollview.frame.size.width*m+padding, scrollview.frame.origin.y, scrollview.frame.size.width-2*padding, scrollview.frame.size.height);          imgview=[[uiimageview alloc]initwithframe:imageviewframe];          [imgview setimage:[uiimage imagenamed:fullimagename]];          [scrollview addsubview:imgview];          [imgview setaccessibilityidentifier:[frontscards objectatindex:randidx]];           uitapgesturerecognizer *doubletap = [[uitapgesturerecognizer alloc] initwithtarget:self action:@selector(doubletapimgview:)];         doubletap.numberoftapsrequired = 2;         doubletap.delegate = self;            [self.imgview setimage:[uiimage imagenamed:fullimagename]];           nslog(@"full image name %@",fullimagename);          nslog(@"image name = %@", fullimagename);          [self.imgview settag:randidx];           [self.imgview addgesturerecognizer:doubletap];          self.imgview.userinteractionenabled=yes;      }     cgsize scrollviewsize=cgsizemake(scrollview.frame.size.width*[frontscards count], scrollview.frame.size.height);     [scrollview setcontentsize:scrollviewsize];     [self.view addsubview:scrollview]; 

create array , init viewdidload , add objects 1 one generated.

nsstring *imagename=[frontscards objectatindex:randidx];  [yournewarray addobject:imagename];