在UIWebView中视频启动或停止时获取通知 [英] Get Notification when a video starts or stops in UIWebView

问题描述

你好，我是目标新手 - c

Hello i am new to objective - c

我遇到了 UIWebView 和<的问题code> MPMoviePlayerController ：我的 UIWebView 在html中有一部电影（它是一个本地的html文件），我正在使用html5和一个视频的视频标签。

I'm having a problem with the UIWebView and MPMoviePlayerController: My UIWebView has a movie inside the html (it's a local html file), I'm using html5 and a video tag for the video.

我希望在视频开始或停止时收到通知 UIWebView ....

I want a notification when video starts or stops in UIWebView....

我尝试过使用 MPMoviePlayerPlaybackDidFinishNotification ，但它没有开火......

I have tried using MPMoviePlayerPlaybackDidFinishNotification, but it doesnt fire ...

I我也尝试让我的主 UIViewController 查看我自己的视图，并拦截 -didAddSubview：和 -willRemoveSubview：。但没有成功...

I have also tried to make the my main UIViewController's view a view of my own, and intercept -didAddSubview: and -willRemoveSubview:. but with no sucess...

是否有任何机构知道如何从 uiwebview ??

Does any body know how to get notification from uiwebview??

推荐答案

您可以观察 @MPAVControllerPlaybackStateChangedNotification（使用 nil 为对象）。此通知未记录，因此我不知道App Store是否会批准您的应用。

You can observe @"MPAVControllerPlaybackStateChangedNotification" (use nil for the object). This notification isn't documented so I don't know if the App Store will approve your app.

[[NSNotificationCenter defaultCenter] addObserver:self
    selector:@selector(playbackStateDidChange:)
    name:@"MPAVControllerPlaybackStateChangedNotification"
    object:nil];

通知中的密钥为 MPAVControllerNewStateParameter USERINFO 。播放开始前该值似乎为0，暂停时为1，正在播放时为2，拖动播放滑块时为3（暂时）。

The notification has the key MPAVControllerNewStateParameter in its userInfo. The value seems to be 0 before playback starts, 1 when it is paused, 2 when it is playing, and 3 (momentarily) when you are dragging the playback slider.

- (void)playbackStateDidChange:(NSNotification *)note
{
    NSLog(@"note.name=%@ state=%d", note.name, [[note.userInfo objectForKey:@"MPAVControllerNewStateParameter"] intValue]);
}

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