当广告加载时，candisplaybannerads会在屏幕上晃动

Question

我在这看到了一些帖子，但似乎都没有回答我的问题......

我的视图底部有一个菜单限制在底部布局指南中，以便在使用

加载广告时

self.candisplaybannerads = true;

菜单也会向上移动。在iOS7中，这种过渡是平滑的，当横幅向上滑动时，菜单会向上滑动。但是在iOS8中，菜单弹出到新位置，然后横幅平滑地滑动。有没有其他人经历过这个或知道如何解决它。 谢谢

示例项目： https://github.com/jbestor/adTest（在示例项目中，iOS7或iOS8都没有平滑滑动）。

按钮菜单的约束：

//button1
[self.view addConstraint:[NSLayoutConstraint constraintWithItem:_button1 attribute:NSLayoutAttributeTrailing
                                                      relatedBy:NSLayoutRelationEqual toItem:self.view
                                                      attribute:NSLayoutAttributeTrailing multiplier:1.0 constant:0.0]];
[self.view addConstraint:[NSLayoutConstraint constraintWithItem:_button1 attribute:NSLayoutAttributeBottom
                                                      relatedBy:NSLayoutRelationEqual toItem:self.bottomLayoutGuide
                                                      attribute:NSLayoutAttributeBottom multiplier:1.0 constant:0.0]];
[self.view addConstraint:[NSLayoutConstraint constraintWithItem:_button1 attribute:NSLayoutAttributeWidth
                                                      relatedBy:NSLayoutRelationEqual toItem:nil
                                                      attribute:NSLayoutAttributeNotAnAttribute multiplier:1.0 constant:50]];
[self.view addConstraint:[NSLayoutConstraint constraintWithItem:_button1 attribute:NSLayoutAttributeHeight
                                                      relatedBy:NSLayoutRelationEqual toItem:nil
                                                      attribute:NSLayoutAttributeNotAnAttribute multiplier:1.0 constant:50]];

//button2
[self.view addConstraint:[NSLayoutConstraint constraintWithItem:_button2 attribute:NSLayoutAttributeLeading
                                                      relatedBy:NSLayoutRelationEqual toItem:self.view
                                                      attribute:NSLayoutAttributeLeading multiplier:1.0 constant:0.0]];
[self.view addConstraint:[NSLayoutConstraint constraintWithItem:_button2 attribute:NSLayoutAttributeBottom
                                                      relatedBy:NSLayoutRelationEqual toItem:self.bottomLayoutGuide
                                                      attribute:NSLayoutAttributeBottom multiplier:1.0 constant:0.0]];
[self.view addConstraint:[NSLayoutConstraint constraintWithItem:_button2 attribute:NSLayoutAttributeWidth
                                                      relatedBy:NSLayoutRelationEqual toItem:nil
                                                      attribute:NSLayoutAttributeNotAnAttribute multiplier:1.0 constant:50]];
[self.view addConstraint:[NSLayoutConstraint constraintWithItem:_button2 attribute:NSLayoutAttributeHeight
                                                      relatedBy:NSLayoutRelationEqual toItem:nil
                                                      attribute:NSLayoutAttributeNotAnAttribute multiplier:1.0 constant:50]];

//button3
[self.view addConstraint:[NSLayoutConstraint constraintWithItem:_button3 attribute:NSLayoutAttributeLeading
                                                      relatedBy:NSLayoutRelationEqual toItem:self.view
                                                      attribute:NSLayoutAttributeLeading multiplier:1.0 constant:0.0]];
[self.view addConstraint:[NSLayoutConstraint constraintWithItem:_button3 attribute:NSLayoutAttributeBottom
                                                      relatedBy:NSLayoutRelationEqual toItem:self.bottomLayoutGuide
                                                      attribute:NSLayoutAttributeBottom multiplier:1.0 constant:0.0]];
[self.view addConstraint:[NSLayoutConstraint constraintWithItem:_button3 attribute:NSLayoutAttributeWidth
                                                      relatedBy:NSLayoutRelationEqual toItem:nil
                                                      attribute:NSLayoutAttributeNotAnAttribute multiplier:1.0 constant:self.view.frame.size.width]];
[self.view addConstraint:[NSLayoutConstraint constraintWithItem:_button3 attribute:NSLayoutAttributeHeight
                                                      relatedBy:NSLayoutRelationEqual toItem:nil
                                                      attribute:NSLayoutAttributeNotAnAttribute multiplier:1.0 constant:50]];