ios7 中的 UIScrollView 忽略 contentInset

Question

这在 ios7 之前有效，当时有人点击了 UIScrollView 中可能成为第一响应者的任何东西。现在它没有了 - UITextFields/Views 仍然可以显示在键盘下。

代码：

- (void)keyboardWasShown:(NSNotification*)notification{

//Some similar questions mentioned this might work, but made no difference for me
self.automaticallyAdjustsScrollViewInsets=NO;

NSDictionary* info = [notification userInfo];
CGSize kbSize = [[info objectForKey:UIKeyboardFrameBeginUserInfoKey] CGRectValue].size;

float height = 0.0;

if (UIDeviceOrientationIsLandscape([UIApplication sharedApplication].statusBarOrientation)) {
    height = kbSize.width;
} else {
    height = kbSize.height;
}

UIEdgeInsets contentInsets = UIEdgeInsetsMake(0.0, 0.0, height, 0.0);


[UIView animateWithDuration:.25
                      delay:0
                    options:(UIViewAnimationOptionAllowUserInteraction)
                 animations:^
 {
     self.editorScrollView.contentInset = contentInsets;
     self.editorScrollView.scrollIndicatorInsets = contentInsets;
 }
                 completion:^(BOOL finished)
 {

 }];
}

目前，当 uitextfield/view 被分配为第一响应者状态时，使用此代码不会发生任何事情。插图似乎没有改变 - 我也许可以使用 contentOffset 但我必须找到刚刚成为第一响应者的原始视图的 Y。

就像我说的，在 ios7 之前，此代码有效（分配第一响应者状态时，键盘后面不会隐藏任何文本字段/视图）。我似乎遗漏了一些明显的东西，或者在 ios7 中有更好的方法吗？

Answer 1

检测键盘变化和框架的更好方法。

关键是转换键盘框架：CGRect keyboardFrameInsideView = [self.view convertRect:keyboardFrame fromView:nil];

[[NSNotificationCenter defaultCenter] addObserver:self
                                         selector:@selector(keyboardFrameWillChange:)
                                             name:UIKeyboardWillShowNotification
                                           object:nil];


- (void)keyboardFrameWillChange:(NSNotification *)notification
{
  CGRect keyboardFrame;
  [[notification.userInfo valueForKey:UIKeyboardFrameEndUserInfoKey] getValue:&keyboardFrame];

  CGRect keyboardFrameInsideView = [self.view convertRect:keyboardFrame fromView:nil];
  CGRect r = self.bodyView.frame;
  r.size.height = CGRectGetMinY(keyboardFrameInsideView) - r.origin.y;
  self.bodyView.frame = r;
}