As always, it's about how the observers are added:
They should not be added in the viewDidLoad
method but in the viewWillAppear
.
It's fixed now.
Following a UI Segue corrupts my view's frame
-
04-07-2022 - |
Pregunta
I have a DetailViewController with a bottom toolbar.
This toolbar has UIButtons and also UITextField objects.
In order to have these UITextFields visible whilst editing, I use the following routines:
- (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];
}
It works, until I push another view on top of the current view, then pop it back. Then I cannot see my UITextField when editing them.
Here's what the NSLog above say:
Before pushing (works):
detailView bounds: 0, (-704 + 352 x -1), 703, 768
After popping (not):
detailView bounds: 0, (352 + 352 x 1), 703, 768
So it seems my UIViewController loses its self.view.frame.origin.y
between push/pops...
In IB, all the sizes of both views (detailView and pushedView) are set to "inferred". The following options are also checked identically for both views:
- Adjust Scroll View Insets
- Hide Bottom Bar on Push
- Extend Edges: Under Top Bars
- " " : Under Bottom Bars
- " " : Under Opaque Bars
So, what's happening to my view? Thanks for your help.
Solución
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