App is portrait mode but play video in landscape in iOS

App is portrait mode but play video in landscape in iOS

You need to first change in appdelegate:

Property synthesize   allowRotation in appdelegate.

-(NSUInteger)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window
{
    if (self.allowRotation) {
        return UIInterfaceOrientationMaskPortrait | UIInterfaceOrientationMaskLandscapeLeft | UIInterfaceOrientationMaskLandscapeRight;
    }
    return UIInterfaceOrientationMaskPortrait;
}

Register Notifications for the full screen control in your viewController.m :
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(moviePlayerWillEnterFullscreenNotification:)
                                             name:MPMoviePlayerWillEnterFullscreenNotification
                                           object:nil];

[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(moviePlayerWillExitFullscreenNotification:)
                                             name:MPMoviePlayerWillExitFullscreenNotification
                                           object:nil];




//Write these two methods in viewController.m
- (void) moviePlayerWillEnterFullscreenNotification:(NSNotification*)notification {
    self.allowRotation = YES;
}
- (void) moviePlayerWillExitFullscreenNotification:(NSNotification*)notification {
    self.allowRotation = NO;
}


More detail you can see following link:
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