Get Notification when a video starts or stops in UIWebView - iphone

Question

Hello i am new to objective - c
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.
I want a notification when video starts or stops in UIWebView....
I have tried using MPMoviePlayerPlaybackDidFinishNotification, but it doesnt fire ...
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...
Does any body know how to get notification from uiwebview??

Answer 1

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];
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]);
}

Answer 2

I searched alot about this..Here is the solution that I have found for getting the playback end notification call. Tested code on iOS6.0 and above. All thanks to #Morten.
In viewDidLoad add observer
[[NSNotificationCenter defaultCenter] addObserver:self
selector:#selector(playbackDidEnd:)
name:#"MPAVControllerItemPlaybackDidEndNotification"//#"MPAVControllerPlaybackStateChangedNotification"
object:nil];
Then simply add following javascript code webViewDidFinishLoad delegate as below
- (void)webViewDidFinishLoad:(UIWebView *)webView {
//http://stackoverflow.com/a/12504918/860488
[videoView stringByEvaluatingJavaScriptFromString:#"\
var intervalId = setInterval(function() { \
var vph5 = document.getElementById(\"video-player\");\
if (vph5) {\
vph5.playVideo();\
clearInterval(intervalId);\
} \
}, 100);"];
}
- (void)playbackDidEnd:(NSNotification *)note
{
//do your stuff here
[videoView removeFromSuperview];
videoView.delegate = nil;
videoView = nil;
}
You will get playbackDid End call in the above selected and can do whatever is your requirement.
Happy Coding !!