我有一个奇怪的问题,我试图覆盖-layoutSubviews以在横向中创建不同的布局。我的方法在纵向上运行良好,但是当我在横向上的一个子视图上设置转换时,出现此错误:
 *** Assertion failure in -[LSSlideNotesView layoutSublayersOfLayer:], /SourceCache/UIKit/UIKit-2380.17/UIView.m:5776
 *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Auto Layout still required after executing -layoutSubviews. LSSlideNotesView's implementation of -layoutSubviews needs to call super.'
我的方法如下:
-(void)layoutSubviews {
    [super layoutSubviews];
    bool horz = UIInterfaceOrientationIsLandscape([UIApplication sharedApplication].statusBarOrientation);
    if (horz) {
        CGRect contentFrame = self.bounds;
        contentFrame.size.width -= (notesHeight + 40);
        if (contentFrame.size.width < 0) {
            contentFrame.size.width = 0;
            notesHeight = self.bounds.size.width - 40;
        }
        slideCarouselView.frame = contentFrame;
        remotePointerView.frame = contentFrame;
        // ***** This is the offending line *****
        notesLabel.transform = CGAffineTransformMakeRotation(-M_PI_2);
        // **************************************
        notesLabel.bounds = CGRectMake(0, 0, contentFrame.size.height, 40);
        notesLabel.center = CGPointMake(CGRectGetMaxX(contentFrame) + 20, contentFrame.size.height / 2);
        CGRect notesRect = self.bounds;
        notesRect.origin.x = notesRect.size.width - notesHeight;
        notesRect.size.width = notesHeight;
        notesTextView.frame = notesRect;
        labelCopyFail.frame = CGRectMake(contentFrame.size.width / 2 - 65, contentFrame.size.height * 3 / 4 - 20, 130, 30);
    } else {
        CGRect contentFrame = self.bounds;
        contentFrame.size.height -= (notesHeight + 40 + keyboardHeight);
        if (contentFrame.size.height < 0) {
            contentFrame.size.height = 0;
            notesHeight = self.bounds.size.height - keyboardHeight - 40;
        }
        slideCarouselView.frame = contentFrame;
        remotePointerView.frame = contentFrame;
        notesLabel.transform = CGAffineTransformIdentity;
        notesLabel.frame = CGRectMake(CGRectGetMinX(contentFrame), CGRectGetMaxY(contentFrame), contentFrame.size.width, 40);
        CGRect notesRect = self.bounds;
        notesRect.origin.y = notesRect.size.height - notesHeight - keyboardHeight;
        notesRect.size.height = notesHeight;
        notesTextView.frame = notesRect;
        labelCopyFail.frame = CGRectMake(contentFrame.size.width / 2 - 65, contentFrame.size.height * 3 / 4 - 20, 130, 30);
    }
}
如果我将该行注释掉,我不会收到错误消息。有谁知道为什么会发生这种情况?我错过了什么吗?我已经在我的应用程序的其他地方进行了几乎这种精确的转换,并且效果很好。我一生都无法弄清楚这里发生了什么。我愿意尝试几乎任何事情。