I have an NSTextField in my app. I want to be able to drag text into the field from other apps. When this happens, I want my text field to erase anything that's already in it, and then show the text from the drag.
How do I do this? I can't figure out to know the text came from a drag. At the moment it just inserts the text whereever I drop it.
the only way is to subclass it and handle the draggingXYZ methods that are part of any nsview
Related
I am able to set clickable links on NSTextField elements, using NSAttributedString. The text shows correctly (blue coloured, underlined) as soon as the view appears.
However, the cursor shows on hover is the editing (I-Beam) cursor, until first click (anywhere) on the NSTextField. Once it is clicked, when hovering over the "hyperlinked" part of the text, the hand point cursor is shown as expected.
I was able to subclass NSTextField and override resetCursorRects, however, this allows me changing the cursor for the entire NSTextField bound, where I want it to show only when hovering over the hyperlinked parts of the text (Or to use cursorRects, but that seems as an overkill, to iterate on the (already iterated on creation) entire text).
I also tried setting the NSCursor attribute of the attributed string, but that did not solve the issue.
This is not directly supported by NSTextField, I believe. It starts working when you click in the textfield because at that point the field editor for the textfield is created; the field editor is an NSTextView, and that does what you want it to do. So you basically have two choices. You can (1) do the easy thing and use NSTextView instead of NSTextField (is there any particular reason why you can't?), or (2) you can set up the right cursor rects yourself in resetCursorRects by looping through the rects for the character ranges that have the link attribute set, but this means setting up a layout manager and so forth – work that is all done for you if you use NSTextView. A third possibility is to make the textfield's field editor come up right away, before the user clicks – in other words, make the textfield be the first responder. But that only works if you have only one such textfield in your window, and if nothing else in the window ever wants to be the first responder, so it is not a very satisfactory fix, probably.
I want to have a UISegmentedController but the user can choose the segment and change the text inside. Is there any way to do that?
Thanks.
EDIT: This is what I would like to do. I have users which choose an option using UISegmentedControl. Under settings, I would like to give them the opportunity to modify what the texts in the UISegmentedControl is. I can use a UITextField and a button which triggers the change but I didn't like that solution. I considered putting a UISegmentedControl image with UITextField inside each segment but that does not seem like an elegant solution. Besides, I have no idea what the font is being used in UISegmentedControl. If I am not mistaken, by default, you can only fit a maximum of 12/13 chars or else it can break. iOS 5 SDK has some more methods to customize so it may be possible.
I coded a solution which involves a preview of what the UISegmentedControl will look like, 2 textfields to replace the texts inside each segment and a button which saves the value. I scraped it because I did not like the implementation and I just didn't like the execution too. I wanted the users to feel like they are using the UISegmentedControl and able to edit the texts inside it, up to a max of 12/13 chars.
Thanks.
You can always dynamically change the values of the segmented controller in code. Would it be acceptable to have the user click the button, at which point you could pop up a form for the user to fill in with the new value, and then call this method on the segmented control:
- (void)setTitle:(NSString *)title forSegmentAtIndex:(NSUInteger)segment
I've looked at similarly titled questions, such as :
UITextView disabling text selection
but that wasn't quite what I was trying to achieve.
My app has a UITextView that only requires vertical scrolling. When holding down a touch, the cursor obviously appears at the point of the touch. However, when I change the text of the view, the cursor is always put at the end of the UITextView, which of course scrolls my text all the way to the bottom. I've tried setting the selected range, but even with the editable set to NO, this causes the keyboard to popup. I want my view to be able to display my text and vertically scroll, and to be able to reset its scroll position when I change the text. If I could achieve this and not be able to select, copy, paste, edit, etc. I would be perfectly content.
The last time I tried to deal with this I gave up and ended up using a UILabel, however I need to be able to scroll this time around. Would I be better off putting a UILabel inside a scroll view as a work around? Or perhaps releasing the textView would work, but since I have it hooked as a referencing outlet in IB, I imagine I would have to recreate it programmatically, and I'd like to avoid something so hacky if I can.
I'm at my whit's end with something I've always felt should be simple, so thanks in advance for any and all help!
I'm creating a view which provides some fields for the user to fill in - address, phone number etc.
I've seen apps that have populated fields with grey text like 'Fill in your name here' on the Name field, and when the user taps on it the text is gone, a keyboard appears and the view is zoomed in to the textfield(or whatever it is). Also, after filling up that field tapping the 'Next' button on the keyboard brings the user to the next field. I'm trying to do the same but I have no idea where to get sources on this. Pardon my poor googling skills ;p
Tried UITextView and UITextField but there isn't anything related to this on the Interface Builder. Figured it lies with the codes?
It'd be great if I can get some explanation or some links on how this works (: Thanks!
EDIT: okay I played around with the Interface Builder a lil more and realized I could set placeholder as the grey text.
It is in fact a UITextField.
You can get the greyed out text by setting its placeholder property.
I am not sure what you mean by zooming but usually they do use a scroll view or adjust the frame so that it isn't blocked by the keyboard.
The Next button is made available using a UIToolbar instance as the text field's inputAccessoryView. However the implementation is one's own and is not framework provided. You can look at this example to get started.
I am building a simple table based search app. The user can ofcourse search through keyboard. But I also want to have another mode of search.
Say a user longpress on a UILabel then based on where the press is happening, that word should get selected & search should happen (no keyboard) on that word.
I know how to detect longpress events but does anyone know how to copy, detect & access the exact term where the longpress has occurred?
UPDATE: I am aware that I can get the object where longpress occurred from which I can get the content of the label text. But I need the exact word on top of which the finger was placed.
Nothing easy comes to mind for UILabel or UITextView. If you're wiling to lay the text out yourself with Core Text, then you can pretty easily find words near the touch. The trouble with that is you'd lose the existing selection features of UILabel and have to reimplement them (or do "shadow layout" in Core Text hoping things will lay out identically in the UILabel... slowly descending into madness here.)
Rather than going down this rabbit hole, I'd recommend using the standard text selection mechanism and add "search" to the menu.
Just put a UILongPressGestureRecognizer on your label then when the gesture recognizer fires you can access which object it came from and read the label value from there.
myLongPressRecognizer.view