I am using a Toggle button in XIB,
in AwakeFromNib :I set title and BG image of the button.
Code works very well till OSX 10.10.5 and below but on higher versions when I click on button the text gets removed.
Set attributed Title
[self.deleteButton setWantsLayer:YES];
self.deleteButton.layer.backgroundColor = [self setButtonBGColor];
[self setButtonTitleFor:self.deleteButton
toString:#"Delete"];
[self.deleteButton setLayerContentsRedrawPolicy:NSViewLayerContentsRedrawOnSetNeedsDisplay];
- (void)setButtonTitleFor:(NSButton*)button toString:(NSString*)title
{
NSAttributedString *attrString = [self getAttributedStringForString:title];
[button setAttributedTitle:attrString];
}
Any idea hat should be done.
So finally got it right
Subclassing NSButtonCell helped me out
RPButtonTextTopCell.h
#interface RPButtonTextTopCell : NSButtonCell
#end
RPButtonTextTopCell.m
#implementation RPButtonTextTopCell
-(id) init
{
self = [super init];
if (self) {
}
return self;
}
-(id) initWithCoder:(NSCoder *)decoder
{
return [super initWithCoder:decoder];
}
-(id) initTextCell:(NSString *)string
{
return [super initTextCell:string];
}
-(NSRect)titleRectForBounds:(NSRect)theRect
{
NSRect titleFrame = [super titleRectForBounds:theRect];
NSSize titleSize = [[self attributedStringValue] size];
titleFrame.origin.y = (theRect.origin.y - (theRect.size.height-titleSize.height)*0.5) + 5;
return titleFrame;
}
#end
Utilizing This Custom Class
RPButtonTextTopCell *deleteCell = [[RPButtonTextTopCell alloc] init];
deleteCell.backgroundColor = [self setNSButtonBGColor];
[self.deleteButton setCell:deleteCell];
[self setButtonTitleFor:self.deleteButton
toString:#"Delete"];
[self.deleteButton setAction:#selector(deleteButtonClicked:)];
[self.deleteButton setTarget:self];
and its solved....
I have a cell based NSOutlineView in that I have sub classed the NSTextfieldCell and I had written following code.
-(void)drawWithFrame:(NSRect)cellFrame inView:(NSView *)controlView {
// A single cell instance is used to render every row, so we can't store the
// custom view here
NSRect bgFrame = cellFrame;
bgFrame.size.width = bgFrame.size.width + bgFrame.origin.x + 3;
bgFrame.origin.x = 0;
if ([self isHighlighted])
{
[[NSColor blackColor] set];
NSRectFill(bgFrame);
}
else
{
NSGradient *gradient = [[NSGradient alloc] initWithStartingColor:[NSColor whiteColor] endingColor:[NSColor lightGrayColor]];
[gradient drawInRect:bgFrame angle:90];
}
[controller showViews:controlView frame:bgFrame highlight:[self isHighlighted] && !isEditing];
}
In View controller
-(void)showViews:(NSView*)parent frame:(NSRect)cellFrame highlight:(BOOL)highlight
{
NSView* nestedView;
nestedView = menu100;
[nestedView setFrame: cellFrame];
if ([nestedView superview] != parent)
{
[nestedView prepareContentInRect:[nestedView visibleRect]];
[parent addSubview: nestedView];
}
}
nestedView = menu100; menu100 is a `NSView` with `NSOutlineview`
menu100 view
In NSOutlineView
- (void)outlineView:(NSOutlineView *)outlineView willDisplayCell:(id)cell forTableColumn:(NSTableColumn *)tableColumn item:(id)item {
if ([item isKindOfClass:[NSDictionary class]]) {
[cell setBackgroundColor:[NSColor keyboardFocusIndicatorColor]];
}
else
{
if (item!=nil) {
CustomCellController* cellCtrl = [cellViewControllers objectForKey:item];
if (!cellCtrl)
{
cellCtrl = [[CustomCellController alloc] initWithMenu:item];
[cellViewControllers setObject:cellCtrl forKey:item];
}
CustomCell* mycell = cell;
[mycell setController:cellCtrl];
}
}
}
now the view is look like this
Now when I click on child outline view it become flipped.
The above code is working in 10.8 but it is get flipped in 10.9. I am become mad on this. Can any one give suggestion to get rid of this in 10.9.
I want to fire a query when a particular record gets selected in an NSTableView, not when the user just scrolls down or scrolls up by continuously pressing UP/DOWN button to reach to a record.
My current implementation is
if ([notification object] == myTableView)
{
if ([myTableView selectedRow] >= 0) {
myCont = [[MyController alloc] init];
if([[detailsView subviews]count]>0)
[detailsView removeAllSubviews];
NSRect frameRect = [[scDetailsViewController view] frame];
frameRect.size.height = [detailsView frame].size.height;
frameRect.size.width = [detailsView frame].size.width;
[[myCont view] setFrame:frameRect];
[detailsView addSubview:[myCont view]];
//Firing the Query
[myCont populateDetails :[[self myList] entityAt:[myTableView selectedRow]]];
}
}
But in this way the query gets fired even if a long UP/DOWN press is done which is not intended.
Is there any way to distinguish between a click and scroll(continuous press of UP/DOWN key) inside an NSTableView just like the Mail application.
Just wrote the below piece of code in the tableViewSelectionDidChange method and that almost works perfectly.
- (void)tableViewSelectionDidChange:(NSNotification *)notification
{
if ([notification object] == myTableView)
{
NSTimeInterval delayInterval = 0.0;
NSEvent *event = [NSApp currentEvent];
if(event != nil && [event type] == NSKeyDown && [event isARepeat])
{
NSLog(#"Long press of UP and DOWn arrow key.");
delayInterval = [NSEvent keyRepeatInterval] + 0.01;
}
[NSObject cancelPreviousPerformRequestsWithTarget:self selector:#selector(myMethod) object:nil];
[self performSelector:#selector(myMethod) withObject:nil afterDelay:delayInterval];
}
else
{
if ([[detailsView subviews] count]>0)
{
[detailsView removeAllSubviews];
}
}
}
Also written the code to fire the query in another method myMethod which is being called above in performSelector.
-(void) myMethod
{
if ([scenarioTableView selectedRow] >= 0) {
NSLog(#"Normal selection on table view row.");
scDetailsViewController = [[ScenarioDetailsViewController alloc] init];
if([[detailsView subviews]count]>0)
[detailsView removeAllSubviews];
NSRect frameRect = [[scDetailsViewController view] frame];
frameRect.size.height = [detailsView frame].size.height;
frameRect.size.width = [detailsView frame].size.width;
[[scDetailsViewController view] setFrame:frameRect];
[detailsView addSubview:[scDetailsViewController view]];
[scDetailsViewController populateScenarioDetails :[[self scenarioDetailsList] entityAt:[scenarioTableView selectedRow]]];
}
else {
if ([[detailsView subviews] count]>0)
{
[detailsView removeAllSubviews];
}
}
}
Modify your key event code something like this below and let me know if still you face any issue:-
NSInteger keyPress = [[NSApp currentEvent] type];
if (keyPress!=10)
{
}
NSLog(#"mouseclick");
}
else{
NSLog(#"keyboardClick");
}
I'm making a little server app for OS X and I'm using an NSTextView to log some info about connected clients.
Whenever I need to log something I'm appending the new message to the text of the NSTextView this way:
- (void)logMessage:(NSString *)message
{
if (message) {
self.textView.string = [self.textView.string stringByAppendingFormat:#"%#\n",message];
}
}
After this I'd like the NSTextField (or maybe I should say the NSClipView that contains it) to scroll down to show the last line of its text (obviously it should scroll only if the last line is not visible yet, in fact if then new line is the first line I log it is already on the screen so there is no need to scroll down).
How can I do that programmatically?
Found solution:
- (void)logMessage:(NSString *)message
{
if (message) {
[self appendMessage:message];
}
}
- (void)appendMessage:(NSString *)message
{
NSString *messageWithNewLine = [message stringByAppendingString:#"\n"];
// Smart Scrolling
BOOL scroll = (NSMaxY(self.textView.visibleRect) == NSMaxY(self.textView.bounds));
// Append string to textview
[self.textView.textStorage appendAttributedString:[[NSAttributedString alloc]initWithString:messageWithNewLine]];
if (scroll) // Scroll to end of the textview contents
[self.textView scrollRangeToVisible: NSMakeRange(self.textView.string.length, 0)];
}
As of OS 10.6 it's as simple as nsTextView.scrollToEndOfDocument(self).
Swift 4 + 5
let smartScroll = self.textView.visibleRect.maxY == self.textView.bounds.maxY
self.textView.textStorage?.append("new text")
if smartScroll{
self.textView.scrollToEndOfDocument(self)
}
I've been messing with this for a while, because I couldn't get it to work reliably. I've finally gotten my code working, so I'd like to post it as a reply.
My solution allows you to scroll manually, while output is being added to the view. As soon as you scroll to the absolute bottom of the NSTextView, the automatic scrolling will resume (if enabled, that is).
First a category to #import this only when needed...
FSScrollToBottomExtensions.h:
#interface NSView (FSScrollToBottomExtensions)
- (float)distanceToBottom;
- (BOOL)isAtBottom;
- (void)scrollToBottom;
#end
FSScrollToBottomExtensions.m:
#implementation NSView (FSScrollToBottomExtensions)
- (float)distanceToBottom
{
NSRect visRect;
NSRect boundsRect;
visRect = [self visibleRect];
boundsRect = [self bounds];
return(NSMaxY(visRect) - NSMaxY(boundsRect));
}
// Apple's suggestion did not work for me.
- (BOOL)isAtBottom
{
return([self distanceToBottom] == 0.0);
}
// The scrollToBottom method provided by Apple seems unreliable, so I wrote this one
- (void)scrollToBottom
{
NSPoint pt;
id scrollView;
id clipView;
pt.x = 0;
pt.y = 100000000000.0;
scrollView = [self enclosingScrollView];
clipView = [scrollView contentView];
pt = [clipView constrainScrollPoint:pt];
[clipView scrollToPoint:pt];
[scrollView reflectScrolledClipView:clipView];
}
#end
... create yourself an "OutputView", which is a subclass of NSTextView:
FSOutputView.h:
#interface FSOutputView : NSTextView
{
BOOL scrollToBottomPending;
}
FSOutputView.m:
#implementation FSOutputView
- (id)setup
{
...
return(self);
}
- (id)initWithCoder:(NSCoder *)aCoder
{
return([[super initWithCoder:aCoder] setup]);
}
- (id)initWithFrame:(NSRect)aFrame textContainer:(NSTextContainer *)aTextContainer
{
return([[super initWithFrame:aFrame textContainer:aTextContainer] setup]);
}
- (void)dealloc
{
[[NSNotificationCenter defaultCenter] removeObserver:self];
[super dealloc];
}
- (void)awakeFromNib
{
NSNotificationCenter *notificationCenter;
NSView *view;
// viewBoundsDidChange catches scrolling that happens when the caret
// moves, and scrolling caused by pressing the scrollbar arrows.
view = [self superview];
[notificationCenter addObserver:self
selector:#selector(viewBoundsDidChangeNotification:)
name:NSViewBoundsDidChangeNotification object:view];
[view setPostsBoundsChangedNotifications:YES];
// viewFrameDidChange catches scrolling that happens because text
// is inserted or deleted.
// it also catches situations, where window resizing causes changes.
[notificationCenter addObserver:self
selector:#selector(viewFrameDidChangeNotification:)
name:NSViewFrameDidChangeNotification object:self];
[self setPostsFrameChangedNotifications:YES];
}
- (void)handleScrollToBottom
{
if(scrollToBottomPending)
{
scrollToBottomPending = NO;
[self scrollToBottom];
}
}
- (void)viewBoundsDidChangeNotification:(NSNotification *)aNotification
{
[self handleScrollToBottom];
}
- (void)viewFrameDidChangeNotification:(NSNotification *)aNotification
{
[self handleScrollToBottom];
}
- (void)outputAttributedString:(NSAttributedString *)aAttributedString
flags:(int)aFlags
{
NSRange range;
BOOL wasAtBottom;
if(aAttributedString)
{
wasAtBottom = [self isAtBottom];
range = [self selectedRange];
if(aFlags & FSAppendString)
{
range = NSMakeRange([[self textStorage] length], 0);
}
if([self shouldChangeTextInRange:range
replacementString:[aAttributedString string]])
{
[[self textStorage] beginEditing];
[[self textStorage] replaceCharactersInRange:range
withAttributedString:aAttributedString];
[[self textStorage] endEditing];
}
range.location += [aAttributedString length];
range.length = 0;
if(!(aFlags & FSAppendString))
{
[self setSelectedRange:range];
}
if(wasAtBottom || (aFlags & FSForceScroll))
{
scrollToBottomPending = YES;
}
}
}
#end
... You can add a few more convenience methods to this class (I've stripped it down), so that you can output a formatted string.
- (void)outputString:(NSString *)aFormatString arguments:(va_list)aArguments attributeKey:(NSString *)aKey flags:(int)aFlags
{
NSMutableAttributedString *str;
str = [... generate attributed string from parameters ...];
[self outputAttributedString:str flags:aFlags];
}
- (void)outputLineWithFormat:(NSString *)aFormatString, ...
{
va_list args;
va_start(args, aFormatString);
[self outputString:aFormatString arguments:args attributeKey:NULL flags:FSAddNewLine];
va_end(args);
}
I have some customised NSTextView and custom input method so my option was to use:
self.scrollView.contentView.scroll(NSPoint(x: 1, y: self.textView.frame.size.height))
UIBarButtonItem does not extend UIView, so there is nothing like a frame property.
But is there any way I can get what is it's CGRect frame, relative to the application UIWindow?
Do you like to use private APIs? If yes,
UIView* view = thatItem.view;
return [view convertRect:view.bounds toView:nil];
Of course no one wants this when targeting the AppStore. A more unreliable method, and also uses undocumented features, but will pass Apple's test, is to loop through the subviews to look for the corresponding button item.
NSMutableArray* buttons = [[NSMutableArray alloc] init];
for (UIControl* btn in theToolbarOrNavbar.subviews)
if ([btn isKindOfClass:[UIControl class]])
[buttons addObject:btn];
UIView* view = [buttons objectAtIndex:index];
[buttons release];
return [view convertRect:view.bounds toView:nil];
The index is the index to your bar item in the array of .items, after removing all blank items. This assumes the buttons are arranged in increasing order, which may not be. A more reliable method is to sort the buttons array in increasing .origin.x value. Of course this still assumes the bar button item must inherit the UIControl class, and are direct subviews of the toolbar/nav-bar, which again may not be.
As you can see, there are a lot of uncertainty when dealing with undocumented features. However, you just want to pop up something under the finger right? The UIBarButtonItem's .action can be a selector of the form:
-(void)buttonClicked:(UIBarButtonItem*)sender event:(UIEvent*)event;
note the event argument — you can obtain the position of touch with
[[event.allTouches anyObject] locationInView:theWindow]
or the button view with
[[event.allTouches anyObject] view]
Therefore, there's no need to iterate the subviews or use undocumented features for what you want to do.
I didn't see this option posted (which in my opinion is much simpler), so here it is:
UIView *barButtonView = [barButtonItem valueForKey:#"view"];
In iOS 3.2, there's a much easier way to show an Action Sheet popover from a toolbar button. Merely do something like this:
- (IBAction)buttonClicked:(UIBarButtonItem *)sender event:(UIEvent *)event
{
UIActionSheet *popupSheet;
// Prepare your action sheet
[popupSheet showFromBarButtonItem:sender animated:YES];
}
This is the implementation I use for my WEPopover project: (https://github.com/werner77/WEPopover):
#implementation UIBarButtonItem(WEPopover)
- (CGRect)frameInView:(UIView *)v {
UIView *theView = self.customView;
if (!theView.superview && [self respondsToSelector:#selector(view)]) {
theView = [self performSelector:#selector(view)];
}
UIView *parentView = theView.superview;
NSArray *subviews = parentView.subviews;
NSUInteger indexOfView = [subviews indexOfObject:theView];
NSUInteger subviewCount = subviews.count;
if (subviewCount > 0 && indexOfView != NSNotFound) {
UIView *button = [parentView.subviews objectAtIndex:indexOfView];
return [button convertRect:button.bounds toView:v];
} else {
return CGRectZero;
}
}
#end
As long as UIBarButtonItem (and UITabBarItem) does not inherit from UIView—for historical reasons UIBarItem inherits from NSObject—this craziness continues (as of this writing, iOS 8.2 and counting ... )
The best answer in this thread is obviously #KennyTM's. Don't be silly and use the private API to find the view.
Here's a oneline Swift solution to get an origin.x sorted array (like Kenny's answer suggests):
let buttonFrames = myToolbar.subviews.filter({
$0 is UIControl
}).sorted({
$0.frame.origin.x < $1.frame.origin.x
}).map({
$0.convertRect($0.bounds, toView:nil)
})
The array is now origin.x sorted with the UIBarButtonItem frames.
(If you feel the need to read more about other people's struggles with UIBarButtonItem, I recommend Ash Furrow's blog post from 2012: Exploring UIBarButtonItem)
I was able to get Werner Altewischer's WEpopover to work by passing up the toolbar along with the
UIBarButton:
Mod is in WEPopoverController.m
- (void)presentPopoverFromBarButtonItem:(UIBarButtonItem *)item toolBar:(UIToolbar *)toolBar
permittedArrowDirections:(UIPopoverArrowDirection)arrowDirections
animated:(BOOL)animated
{
self.currentUIControl = nil;
self.currentView = nil;
self.currentBarButtonItem = item;
self.currentArrowDirections = arrowDirections;
self.currentToolBar = toolBar;
UIView *v = [self keyView];
UIButton *button = nil;
for (UIView *subview in toolBar.subviews)
{
if ([[subview class].description isEqualToString:#"UIToolbarButton"])
{
for (id target in [(UIButton *)subview allTargets])
{
if (target == item)
{
button = (UIButton *)subview;
break;
}
}
if (button != nil) break;
}
}
CGRect rect = [button.superview convertRect:button.frame toView:v];
[self presentPopoverFromRect:rect inView:v permittedArrowDirections:arrowDirections animated:animated];
}
-(CGRect) getBarItemRc :(UIBarButtonItem *)item{
UIView *view = [item valueForKey:#"view"];
return [view frame];
}
You can get it from the UINavigationBar view. The navigationBar is a UIView which has 2 or 3 custom subviews for the parts on the bar.
If you know that the UIBarButtonItem is currently shown in the navbar on the right, you can get its frame from navbar's subviews array.
First you need the navigationBar which you can get from the navigationController which you can get from the UIViewController. Then find the right most subview:
UINavigationBar* navbar = curViewController.navigationController.navigationBar;
UIView* rightView = nil;
for (UIView* v in navbar.subviews) {
if (rightView==nil) {
rightView = v;
} else if (v.frame.origin.x > rightView.frame.origin.x) {
rightView = v; // this view is further right
}
}
// at this point rightView contains the right most subview of the navbar
I haven't compiled this code so YMMV.
This is not the best solution and from some point of view it's not right solution and we can't do like follow because we access to object inside UIBarBattonItem implicitly, but you can try to do something like:
UIButton *button = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, 30, 30)];
[button setImage:[UIImage imageNamed:#"Menu_Icon"] forState:UIControlStateNormal];
[button addTarget:self action:#selector(didPressitem) forControlEvents:UIControlEventTouchUpInside];
UIBarButtonItem *item = [[UIBarButtonItem alloc] initWithCustomView:button];
self.navigationItem.rightBarButtonItem = item;
CGPoint point = [self.view convertPoint:button.center fromView:(UIView *)self.navigationItem.rightBarButtonItem];
//this is like view because we use UIButton like "base" obj for
//UIBarButtonItem, but u should note that UIBarButtonItem base class
//is NSObject class not UIView class, for hiding warning we implicity
//cast UIBarButtonItem created with UIButton to UIView
NSLog(#"point %#", NSStringFromCGPoint(point));
as result i got next:
point {289, 22}
Before implement this code, be sure to call [window makeKeyAndVisible] in your Applition delegate application:didFinishLaunchingWithOptions: method!
- (void) someMethod
{
CGRect rect = [barButtonItem convertRect:barButtonItem.customview.bounds toView:[self keyView]];
}
- (UIView *)keyView {
UIWindow *w = [[UIApplication sharedApplication] keyWindow];
if (w.subviews.count > 0) {
return [w.subviews objectAtIndex:0];
} else {
return w;
}
}
I handled it as follows:
- (IBAction)buttonClicked:(UIBarButtonItem *)sender event:(UIEvent *)event
{
UIView* view = [sender valueForKey:#"view"]; //use KVO to return the view
CGRect rect = [view convertRect:view.bounds toView:self.view];
//do stuff with the rect
}