Objectivec UIKeyboardBoundsUserInfoKey 已弃用，改用什么

发布于05月29日

我正在使用3.2 sdk开发一款iPad应用程序.我正在处理获取键盘大小的问题，以防止文本字段隐藏在键盘后面.

I'm getting a Warning in Xcode -> UIKeyboardBoundsUserInfoKey is deprecated what should I use instead not to get this warning?

推荐答案

我使用了之前提供的解决方案，但仍然存在问题.以下是我的 idea :

    - (void)keyboardWillShow:(NSNotification *)aNotification {
    [self moveTextViewForKeyboard:aNotification up:YES];
}

    - (void)keyboardWillHide:(NSNotification *)aNotification {
        [self moveTextViewForKeyboard:aNotification up:NO]; 
    }

- (void) moveTextViewForKeyboard:(NSNotification*)aNotification up: (BOOL) up{
NSDictionary* userInfo = [aNotification userInfo];

// Get animation info from userInfo
NSTimeInterval animationDuration;
UIViewAnimationCurve animationCurve;

CGRect keyboardEndFrame;

[[userInfo objectForKey:UIKeyboardAnimationCurveUserInfoKey] getValue:&animationCurve];
[[userInfo objectForKey:UIKeyboardAnimationDurationUserInfoKey] getValue:&animationDuration];


[[userInfo objectForKey:UIKeyboardFrameEndUserInfoKey] getValue:&keyboardEndFrame];


// Animate up or down
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:animationDuration];
[UIView setAnimationCurve:animationCurve];

CGRect newFrame = textView.frame;
CGRect keyboardFrame = [self.view convertRect:keyboardEndFrame toView:nil];

newFrame.origin.y -= keyboardFrame.size.height * (up? 1 : -1);
textView.frame = newFrame;

[UIView commitAnimations];
}