将从UIWebView播放的视频自动旋转到横向模式

Question

我有一个UIWebView，用这种方式填充：

[myWebView loadHTMLString:@"<iframe src=\"http://www.youtube.com/embed/grTCDFbhKMU\" frameborder=\"0\" allowfullscreen></iframe>"
baseURL:nil];

视频已正确启动，但无法切换到横向模式。

我已经在相关的ViewController中写了这个：

- (void)didRotate:(NSNotification *)notification
{
    UIDeviceOrientation orientation = [[notification object] orientation];

    if (orientation == UIDeviceOrientationLandscapeLeft)
    {
        [self.newsContent setTransform:CGAffineTransformMakeRotation(M_PI / 2.0)];
    }
    else if (orientation == UIDeviceOrientationLandscapeRight)
    {
        [self.newsContent setTransform:CGAffineTransformMakeRotation(M_PI / -2.0)];
    }
    else if (orientation == UIDeviceOrientationPortraitUpsideDown)
    {
        [self.newsContent setTransform:CGAffineTransformMakeRotation(M_PI)];
    }
    else if (orientation == UIDeviceOrientationPortrait)
    {
        [self.newsContent setTransform:CGAffineTransformMakeRotation(0.0)];
    }
}

可用于更改内容方向，但在视频发布后无用:(

有什么想法吗？

Answer 1

您应该使用以下方法返回YES：

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation { 

    //All orientations are accepted except for the upsidedown orientation
    if(interfaceOrientation != UIInterfaceOrientationPortraitUpsideDown) {
        return YES;
    } else {
        return NO;
    }
}

如果返回YES，它将旋转，如果没有，则不会旋转。