Right now I have an OS X storyboard app that has a main window, and a button on it that triggers a "show" segue for another view controller. Right now I've got the segue set up as modal because if I don't, the user could click the same button again and end up with two copies of the same window.
Is there a way for me to accomplish this without having to restructure the storyboard to embed these view controllers in a separate window controller (which would seem to defeat the purpose of the flexibility the storyboards offer)?
Edit: While the answer below does work, it is definitely not the best way. In your storyboard, select the view controller for the destination view then go to the attributes inspector and change Presentation from Multiple to Single. That's it, no code required.
Not sure this is the best way but in the NSViewController that is pushing the segue, you could add a property for the destination NSViewController and, in your prepareForSegue:sender: method, assign the destination view controller. Finally, in the shouldPerformSegueWithIdentifier:sender: method, check to see if the destination view controller is assigned, and, if so, bring its window to the front and return NO meaning don't perform the segue, otherwise, return YES. Here's a quick example (to be included in the NSViewController with the button to initiate the segue):
#interface ViewController ()
#property (weak) NSViewController *pushedViewController;
#end
#implementation ViewController
- (BOOL)shouldPerformSegueWithIdentifier:(NSString *)identifier sender:(id)sender {
if (self.pushedViewController) {
[self.pushedViewController.view.window makeKeyAndOrderFront:self];
return NO;
}
return YES;
}
- (void)prepareForSegue:(NSStoryboardSegue *)segue sender:(id)sender {
self.pushedViewController = segue.destinationController;
}
#end
When you close the window containing the destination view controller, this will set the pushedViewController property of the original view controller to nil so the segue will perform if the window is not already opened. Again, there may be a better way to do this. Hope this helps.
Jon
I have subclassed NSButton and created a class of my own, in which I have added the code to show up hand cursor when mouse pointer comes over the button. It's working for buttons that were added in normal views. But when I used the same class for a button inside a model sheet, cursor is not showing up. What might be the reason? Any idea!
This is the code I have added in NSButton subclass
- (void)resetCursorRects {
/*
* change cursor type to a poiting finger when it gets into HyperLink frame.
*/
[super resetCursorRects];
[self addCursorRect:[self bounds] cursor:[NSCursor pointingHandCursor]];
}
In Interface Builder, make sure your sheet's Window/Panel has Title Bar checked.
Since it's a sheet the title bar won't actually be visible, but for some reason cursor tracking seems to be disabled when this property is off.
Instand of Subclassing create a Category of NSButton. and override the
resetCursorRects method (same as the above).
#import the new Category to your controller and try.
if you not familiar with Category try this out.
I have created a custom NSWindow using:
self = [super initWithContentRect:contentRect styleMask:8 backing:bufferingType defer:flag];
Which handles resizing fine. However, it doesn't change the cursor when i hover over the borders. I could do this myself but i cannot create a trackingRect which goes beyond the edges of the window.
Any ideas how i could manage this would be great.
Thanks,
Ben
I came across this, the fix for me was to subclass NSWindow and put this in the implementation:
- (BOOL)canBecomeKeyWindow
{
return YES;
}
NSWindow.styleMask indicating what kinds of control items it displays should include NSResizableWindowMask that tells to display a resize control.
[window setStyleMask:NSResizableWindowMask];
As the title suggest, I've enabled right clicks for my tableview with customized rows. Anywhere there is an NSTextField, it blocks the right click.
is there a userInteractionEnabled equivalent for cocoa like on the iphone?
I though I probably needed to subclass everything in my NSTableCellView subclass, but I just needed to override -(NSView*)hitTest:(NSPoint)aPoint method in my NSTableCellView subclass to return self.
I'm able to right click on text fields within my custom view based table view cell. Here is how I configure it:
NSTextField *tf = [[NSTextField alloc] initWithFrame:NSZeroRect];
self.textField = tf;
self.imageView.autoresizingMask=NSViewWidthSizable;
self.textField.editable=NO;
self.textField.selectable=NO;
self.textField.drawsBackground=NO;
self.textField.bordered=NO;
self.textField.bezeled=NO;
self.textField.target=self;
self.textField.action=#selector(textDidEndEditing:);
[self.textField.cell setLineBreakMode:NSLineBreakByTruncatingMiddle];
Also, make sure you are setting the -menu property of NSTableView and not the cell view to enable to menu. (I don't know if that will make a difference to your issue but it is how I do right clicking in a table view.)
I have a view with a UITextField which should hide the keyboard when return is pressed.
My function is this:
- (BOOL)textFieldShouldReturn:(UITextField *)textField {
if ( textField == userPassword ) {
[textField resignFirstResponder];
}
return YES;
}
Normally the keyboard should be hidden but it stays on the screen. resignFirstResponder is correctly called. What am I missing?
I see you have the iPad tag on this. Do you happen to be presenting a modal view using UIModalPresentationFormSheet? If so, it looks like this is a limitation of the FormSheet modal presentation (either Apple is doing it intentionally for some reason, or it is a bug). See these other questions for more details:
Modal Dialog Does Not Dismiss Keyboard
Modal View Controller with keyboard on landscape iPad changes location when dismissed
There is this helpful method which allows you to dismiss the keyboard when presenting the Modal Dialog:
- (BOOL)disablesAutomaticKeyboardDismissal { return NO; }
This will override the default behavior of the modal dialog set by Apple and allow you dismiss the keyboard. It is in the UIViewController Class.
I hope this helps someone!
If you are using the Interface Builder, look if your UITextField has the delegated linked with your class.
-Select your UITextField and in your Connections look if exits one connection in Outlets->delegate. If not, conect with you File's Owner Class.
This need to be linked with your File's Owner Class. This delegate tell where to search for a method. If your are overriding a method, you need to tell where the object will search for that.
This solution worked for me after none of the above did. after calling resignFirstResponder i added a modal view & removed it.
[myTextField resignFirstResponder];
UIViewController *dummyController = [[UIViewController alloc] init];
UIView *dummy = [[UIView alloc] initWithFrame:CGRectMake(-1, -1,1,1)];
[dummyController setView:dummy];
[self presentModalViewController:dummyController animated:NO];
[dummyController dismissModalViewControllerAnimated:NO];
To deal with the bug mentioned by Brandon, you can try closing and re-opening your modal view controller as long as you still have a reference to it.
[textField resignFirstResponder];
[self dismissModalViewControllerAnimated:NO];
[self presentModalViewController:yourModalViewControllerReference animated:NO];
(where "self" should be the controller you used to originally open the modal view controller)
I was having the same problem. I realized that after connecting the delegate to the File's Owner in Interface Builder, I neglected to save in Interface Builder. Once I saved, I recompiled and the keyboard disappears correctly when hitting return.
xcode 4.5.1
Simply click control then on the textfield drag and release on the .h file
(control key+ drag)
then in the pop up menu select
connection=acton;
name= any name;
type=id;
event=did end on exit;
arguments=sender;
then click connect button
Did you remember to implement the UITextFieldDelegate protocol?
I have read so many articles about this issue, where the onscreen keyboard refuses to hide when you call resignFirstResponder, but none of the suggestions worked for me.
I'm using XCode 5 (iOS 7) and have a iPhone screen containing a couple of controls which require the onscreen keyboard, but if the user clicks on the UIButton, then I want the keyboard to disappear.
I probably wasted one full day experimenting with resignFirstResponder and adding disablesAutomaticKeyboardDismissal functions to return NO, but nothing worked. Once the onscreen keyboard appeared, I could never get it to disappear again.
But then I had a small brainwave (as I only have a small brain).
Now, when the user clicks on my UIButton, I simply disable the UITextField and UITextView controls.
- (IBAction)btnDate_Tapped:(id)sender {
// The user has clicked on the "Date" button.
self.tbClientName.enabled = NO;
self.tbComments.editable = NO;
And suddenly, the app finds it has no editable text fields needing an onscreen keyboard, and it neatly slides the keyboard out of sight.
(Relieved sigh.)
My UIButton actually makes a popup dialog appear. When the user dismisses the popup, I re-enable these two controls, so if the user taps in one of them, the keyboard will appear again.
-(void)popoverControllerDidDismissPopover:(UIPopoverController *) popoverController {
// The user has closed our popup dialog.
// We need to make our UITextField and UITextView editable again.
self.tbClientName.enabled = YES;
self.tbComments.editable = YES;
... etc...
}
Simple, isn't it !
And surprisingly, this workaround even works on UIViewControllers which appear in Modal style.
I hope this helps other XCode victims out there.
Based on your comment that it looks like focus has shifted, then I think what may be happening is that the keyboard is staying open for the next text input field. If your return key is a "Next" key, then returning YES for textFieldShouldReturn: will make the next textField the first responder, and keep the keyboard visible.
The easiest way is:
Go to your user interface builder,
select UITextField and "Control-Drag" to "Detail View Controller-Detail" and release.
The window will pop-up. Then under "Outlets" select "Delegate".
That's it. It worked for me.
if you are in UIModalPresentationFormSheet just call
- (BOOL)disablesAutomaticKeyboardDismissal
{
return NO;
}
Swift 3.0:
override var disablesAutomaticKeyboardDismissal: Bool {
get{
return false
}
set {
self.disablesAutomaticKeyboardDismissal = false
}
}
Swift 3.0
func textFieldShouldBeginEditing(_ textField: UITextField) -> Bool {
if textField == addressTextField {
textField.resignFirstResponder()
return false
}
return true
}