Question

Heey，

在我的iPad应用程序中，我有一个带有UIViewController的UIPopoverController，其中包含一些文本字段。

当键盘出现时，Popover会动画显示以适应。有人知道如何禁用它吗？

谢谢

Answer 1

我不认为你可以除了使弹出窗口的高度更小......它就像这样做，所以当你的键盘弹出时，没有任何一个弹出窗口被它覆盖（因此它缩小了），但我发现它是有时很烦人，因为它搞乱了表视图（不能让它们一直滚动并且不得不调整它们的大小）

Answer 2

如果它实际上对屏幕的更好部分进行了动画效果会很棒，我认为你的意思是它实际上缩小了popUp，这种情况大多不太好。（我在旋转期间看到的情况）。除非您移动视图，否则无法防止popUp压扁。解决此问题的最佳方法是使用keyBoard暂时移动整个屏幕的整个主要UIView，弹出窗口的大小与弹出窗口的缩小程度如果不移动它将会缩小。你不能只用键盘的大小来移动它，因为popUps up也会受到影响。下面的代码适用于键盘旋转的时间，类似于首次引入时的代码。这很容易，当你旋转屏幕时EXCept，然后事情变得棘手......

换句话说，有时你的UIView根本不动，有时它会上升170点。

// -----------------找到键盘顶部（也用于“didRotate”）----非常方便， //花了我几个小时才弄清楚一个绝对永远的工作topOfKeyboard，所以你走了.-------

//--------------------------------------------------------------------------------
- (void)keyboardWillShow:(NSNotification*)notification
{
NSLog(@"            keyboardWillShow");
UIWindow *keyWindow = [UIApplication sharedApplication].keyWindow;
NSDictionary* info = [notification userInfo];
keyboardRect = [[info objectForKey:UIKeyboardFrameEndUserInfoKey] CGRectValue];
keyboardRect = [(UIView*)keyWindow convertRect:keyboardRect toView:mainViewController.view];
keyboardIsVisible = TRUE;
topOfKeyboard = keyboardRect.origin.y;

棘手的部分是找到PopUp的底部，因为弹出窗口中似乎有代码或者convertRect：toView：代码使得原点片状，（如果你尝试在“convertRect：toView”之后“查看”原点：“代码”，它想要在旋转期间移动并处于不同的位置（或其中一个超级视图），因此底部计算出现不同的一些时间（不可预测），因为不同元素的旋转的异步过程可能是因为popUp本身在弹出窗口中有很多超级视图。（要看弹出的问题，必须有键盘效果弹出窗口，向上移动整个视图，然后在“convertRect：toView：”代码后记录popUp的“origin”和“size”...“origin “我正在谈论的是框架在使用”convertRect：toView：“代码转换为主视图（或至少几个视图）后的原点....

更新:(如果你从popUp向下移动大约3个超级视图，那么片状就会消失......（下面的代码是“didRotate”ipad类型的代码。那就是popUp有几个超级视图，然后才能到达正确框架顶部的那个超级视图

UIPopoverController可能应该有一个属性，该属性具有在其中旋转之后预测的原点，在一种“将旋转”类型的代码中（由于键盘问题），而不仅仅是“popoverContentSize”，（也应该包括没有键盘作为另一个变量的popoverContentSize，“..无论如何，我必须这样做，请参阅下面的代码。

//--------------------------------------------------------------------------------
- (void) checkRotation
{
NSLog(@"  ");
NSLog(@"checkRotation");
    if (wasOffset)
    {
        wasOffset = false;
        [UIImageView beginAnimations:nil context:NULL];
        [UIImageView setAnimationDuration:0.2f];            
        CGRect frame = carousel.frame;
        frame.origin.y += offset;
        carousel.frame = frame;
        [UIImageView commitAnimations];

        [popPickerController presentPopoverFromRect:zoneButton.frame inView:[zoneButton superview] permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];
    }

    if (popPickerController.popoverVisible)
    {

        if (keyboardIsVisible)
        {
            wasOffset = false;

            [popPickerController presentPopoverFromRect:zoneButton.frame inView:[zoneButton superview]
                    permittedArrowDirections:UIPopoverArrowDirectionAny animated:NO];

            upView3 = [[[popPickerController.contentViewController.view superview] superview] superview]; //hey it works... :o)

//NSLog(@"  ");
//NSLog(@"upView3.frame.origin.x    = %f",upView3.frame.origin.x);
//NSLog(@"upView3.frame.origin.y    = %f",upView3.frame.origin.y);
//NSLog(@"upView3.frame.size.height    = %f",upView3.frame.size.height);
//NSLog(@"upView3.frame.size.width    = %f",upView3.frame.size.width);
//NSLog(@"  ");
            popUpRect.origin.x = upView3.frame.origin.x;
            popUpRect.origin.y = upView3.frame.origin.y;
            popUpRect.size.height = popUpSize.height;
            popUpRect.size.width = popUpSize.width; //you must save the size because the keyboard destroys it before you can use it.  very tricky....

//NSLog(@"  ");
//NSLog(@"popUpRect.origin.x    = %f",popUpRect.origin.x);
//NSLog(@"popUpRect.origin.y    = %f",popUpRect.origin.y);
//NSLog(@"popUpRect.size.height    = %f",popUpRect.size.height);
//NSLog(@"popUpRect.size.width    = %f",popUpRect.size.width);
//NSLog(@"  ");
//NSLog(@"  ");
//NSLog(@"keyboardIsVisible    = %d", keyboardIsVisible);
//NSLog(@"  ");
//NSLog(@"keyboardRect.origin.x     = %f",keyboardRect.origin.x);
//NSLog(@"keyboardRect.origin.y     = %f",keyboardRect.origin.y);
//NSLog(@"keyboardRect.size.height      = %f",keyboardRect.size.height);
//NSLog(@"keyboardRect.size.width       = %f",keyboardRect.size.width);
//NSLog(@"topOfKeyboard             = %f",topOfKeyboard);

                CGFloat bottomOfPicker = popUpRect.origin.y + popUpRect.size.height - amountShadowCanEncroach;
//NSLog(@"  ");
//NSLog(@"bottomOfPicker   = %f",bottomOfPicker);
//NSLog(@"topOfKeyboard    = %f",topOfKeyboard);
//NSLog(@"  ");

            if (bottomOfPicker > topOfKeyboard)
            {
                wasOffset = true;
                offset = bottomOfPicker - topOfKeyboard;
NSLog(@"offset    = %f",offset);

                [UIImageView beginAnimations:nil context:NULL];
                [UIImageView setAnimationDuration:0.2f];            
                CGRect frame = carousel.frame;
                frame.origin.y -= offset;
                carousel.frame = frame;
                [UIImageView commitAnimations];
            }
        }

        [popPickerController presentPopoverFromRect:zoneButton.frame inView:[zoneButton superview] permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];
    }
}

and moving the main UIView back

    //-----------------------------------------------------------------------------
        - (void) searchDidEndEditing
        {
        NSLog(@"searchDidEndEditing");
keyboardIsVisible = false;
           if (wasOffset)
            {
                wasOffset = false;
                [UIImageView beginAnimations:nil context:NULL];
                [UIImageView setAnimationDuration:0.2f];            
                CGRect frame = mainView.frame;
                frame.origin.y += offset;
                mainView.frame = frame;
                [UIImageView commitAnimations];

                if (zoneButton.selected)
                    [popPickerController presentPopoverFromRect:zoneButton.frame inView:[zoneButton superview] permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];
            }
        }

键盘弹出时，UIPopoverController动画

2 个答案: