Received memory warning when loading uibweview

Question 1

I can not write the whole code for you, but giving you a short piece of code to help you.

You make a scrollView, having thumbnail images of what video to play and save the urls in an array respectively then

**In VideoPlayContoller.h**

#import <MediaPlayer/MediaPlayer.h>
@interface VideoPlayViewController : UIViewController{

    MPMoviePlayerController *moviePlayerController;

}

@property (nonatomic, readwrite) int i;
@property (nonatomic, retain) NSMutableArray *allVideoUrls;

-(void)playVideo:(int)_index;

- (IBAction)onTapBack:(id)sender;

@end

**In VideoPlayContoller.m**

#import "VideoPlayViewController.h"
#import <MediaPlayer/MediaPlayer.h>

@implementation VideoPlayViewController

@synthesize i,allVideoUrls;

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    if (self) {
        // Custom initialization
        allVideoUrls = [[NSMutableArray alloc]init];
    }
    return self;
}

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view from its nib.

    [self playVideo:i];
}

-(void)playVideo:(int)_index{

    NSURL *fileURL = [NSURL URLWithString:[allVideoUrls objectAtIndex:i]];

    if(!moviePlayerController){
        moviePlayerController = [[MPMoviePlayerController alloc] init];
        [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(moviePlaybackComplete:) name:MPMoviePlayerPlaybackDidFinishNotification object:moviePlayerController];
        [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(doneButtonClick:) name:MPMoviePlayerWillExitFullscreenNotification object:nil];
    }
    moviePlayerController.fullscreen = YES;
    [moviePlayerController setContentURL:fileURL];
    if([[[UIDevice currentDevice] systemVersion] floatValue] >= 7.0){
        [moviePlayerController.view setFrame:CGRectMake(0, 62, 320, 504)];
    }
    else{
        [moviePlayerController.view setFrame:CGRectMake(0, 62, 320, 416)]; //y = 42
    }
    [self.view addSubview:moviePlayerController.view];

    [moviePlayerController play];   
}

- (IBAction)onTapBack:(id)sender {
    [moviePlayerController stop];
    [self dismissModalViewControllerAnimated:NO];
}

- (void)moviePlaybackComplete:(NSNotification *)notification{
    i++;

      [moviePlayerController stop];
      [moviePlayerController.view removeFromSuperview];
      [self dismissModalViewControllerAnimated:NO];
      [self dismissModalViewControllerAnimated:NO];
}

-(void)doneButtonClick:(NSNotification*)aNotification{
    NSLog(@"Done button Clicked");
    [self dismissModalViewControllerAnimated:NO];
}

Question 2

It looks like you want to use a UICollectionView - whats happening is you are loading lots of these webviews into memory and its just too much. You need to take advantage of cell reuse.

Take a read of a few tutorials and get yourself upto speed -