Question

我正在尝试创建一个在不同视频播放后显示唯一信息页面的应用。目前，我正在使用moviePlayBackDidFinish通知方法显示信息页面，但我无法弄清楚如何为不同的视频自定义它。这是我的代码...非常感谢提前!!

继承电影播放器控制器后编辑...如何在NSNotification中使用新属性？

//子类movieplayercontroller myMovie.h

#import <UIKit/UIKit.h>
#import <MediaPlayer/MediaPlayer.h>

@interface myMovie: MPMoviePlayerViewController
{
    myMovie *videoPlayer;
}

@property (nonatomic, strong) NSString *movieTitle;

@end

myMovie.m

#import "myMovie.h"

@interface myMovie ()

@end

@implementation myMovie

@synthesize movieTitle;

@end

//主视图控制器

videoPlayViewController.h

#import <UIKit/UIKit.h>
#import <MediaPlayer/MediaPlayer.h>
#import "View2.h"
#import "myMovie.h"

@interface videoPlayViewController : UIViewController


-(IBAction) playMovie;

videoPlayViewController.m

#import "videoPlayViewController.h"
#import "myMovie.h"

@interface videoPlayViewController ()

@end


@implementation videoPlayViewController


-(void)playMovie
{
    NSURL *url = [NSURL fileURLWithPath:[[NSBundle mainBundle] 
                                         pathForResource:@"sample" ofType:@"mov"]];

   myMovie *videoPlayer =  [[myMovie alloc]
                    initWithContentURL:url];

    [[NSNotificationCenter defaultCenter] addObserver:self
                                             selector:@selector(moviePlayBackDidFinish:)
                                                 name:MPMoviePlayerPlaybackDidFinishNotification
                                               object:videoPlayer.moviePlayer];




   videoPlayer.moviePlayer.controlStyle = MPMovieControlStyleDefault;
    videoPlayer.moviePlayer.shouldAutoplay = NO;
    videoPlayer.movieTitle = @"sample";
    [self.view addSubview:videoPlayer.view];
    [videoPlayer.moviePlayer setFullscreen:YES animated:YES];



}

- (void) moviePlayBackDidFinish:(NSNotification*)notification {
    MPMoviePlayerController *player = [notification object];
    [[NSNotificationCenter defaultCenter] 
     removeObserver:self
     name:MPMoviePlayerPlaybackDidFinishNotification
     object:player];

    NSLog(@"Is this working?");

    View2 *second =[[View2 alloc] initWithNibName:nil bundle:nil];

    [self presentModalViewController:second animated:YES];

    [player.view removeFromSuperview];

}

Answer 1

使用属性（或许多属性）创建MPMoviePlayerController的子类，以保存视频结束时所需的信息。然后，当视频结束时，您将在通知对象中获得自定义的MPMoviePlayerController，并且您可以检查属性以找出您想要了解的有关已结束的电影的内容。

如何针对不同的MPMoviePlayerControllers定位NSNotification？

1 个答案: