我有一个带有底部工具栏的 DetailViewController。
这个工具栏有 UIButtons 和 UITextField 对象。
为了让这些 UITextField 在编辑时可见,我使用以下例程:
- (void) returnMainViewToInitialposition:(NSNotification*)aNotification{
[self scrollViewForKeyboard:aNotification up:NO];
}
- (void) scrollViewForKeyboard:(NSNotification*)aNotification up:(BOOL) up{
if (_detailItem && ( self.addressTextField.editing || self.urlTextField.editing || self.titleTextField.editing )) {
NSDictionary* userInfo = [aNotification userInfo];
// Get animation info from userInfo
NSTimeInterval animationDuration;
UIViewAnimationCurve animationCurve;
CGRect keyboardFrame;
[[userInfo objectForKey:UIKeyboardAnimationCurveUserInfoKey] getValue:&animationCurve];
[[userInfo objectForKey:UIKeyboardAnimationDurationUserInfoKey] getValue:&animationDuration];
[[userInfo objectForKey:UIKeyboardFrameEndUserInfoKey] getValue:&keyboardFrame];
CGFloat _keyboardHeight = ([[UIDevice currentDevice] orientation] == UIDeviceOrientationPortrait || [[UIDevice currentDevice] orientation] == UIDeviceOrientationPortraitUpsideDown) ? keyboardFrame.size.height : keyboardFrame.size.width;
// Animate up or down
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:animationDuration];
[UIView setAnimationCurve:animationCurve];
[self.view setFrame:CGRectMake(self.view.frame.origin.x, self.view.frame.origin.y + _keyboardHeight * (up?-1:1), self.view.frame.size.width, self.view.frame.size.height)];
[UIView commitAnimations];
NSLog(@"detailView bounds: %.0f, (%.0f + %.0f x %d), %3.0f, %3.0f", self.view.frame.origin.x, self.view.frame.origin.y + _keyboardHeight * (up?-1:1), _keyboardHeight, (up?-1:1), self.view.frame.size.width, self.view.frame.size.height);
}
}
+ (CGRect) convertRect:(CGRect)rect toView:(UIView *)view {
UIWindow *window = [view isKindOfClass:[UIWindow class]] ? (UIWindow *) view : [view window];
return [view convertRect:[window convertRect:rect fromWindow:nil] fromView:nil];
}
它可以工作,直到我将另一个视图推到当前视图之上,然后将其弹出。然后我在编辑它们时看不到我的 UITextField。
这是上面的 NSLog 所说的:
在推动(工作)之前:
detailView bounds: 0, (-704 + 352 x -1), 703, 768
弹出后(不):
detailView bounds: 0, (352 + 352 x 1), 703, 768
所以看起来我的 UIViewControllerself.view.frame.origin.y
在推送/弹出之间失去了它......
在 IB 中,两个视图(detailView 和 pushView)的所有大小都设置为“推断”。两个视图的以下选项也同样检查:
- 调整滚动视图插图
- 按下时隐藏底栏
- 延伸边缘:在顶栏下方
- " " : 在底栏下
- " " : 在不透明条下
那么,我的观点发生了什么变化?谢谢你的帮助。