The problem is at the if ([[topViewController presentViewController] line:
(void)sessionStateChanged:(FBSession *)session
state:(FBSessionState) state
error:(NSError *)error
{
switch (state) {
case FBSessionStateOpen: {
UIViewController *topViewController =
self.navController topViewController];
if ([[topViewController presentViewController]
isKindOfClass:[PBLoginViewController class]]) {
[topViewController dismissViewControllerAnimated:YES completion:nil];
Related
I currently developing a small dictionary app under OSX for my own use, I would like to have a feature that when I hit the return key, the focus would go to the nssearchfeild.
So I try to make the app to receive keyDown event using a NSView and NSViewController told by this tutorial.
But every time I start the app, it wouldn't receive the keyDown event. I have to click on the window once, then hit the keyboard, so that it can receive keyDown event.
What did I do wrong? Can anyone help me out with this problem? I have been stuck in this problem for days, and searching throught Google and API wouldn't help much.
Thanks in advance!
Here is my code for AppDelegate.m
#import "AppDelegate.h"
#import "MyDictViewController.h"
#interface AppDelegate()
#property (nonatomic,strong) IBOutlet MyDictViewController *viewController;
#end
#implementation AppDelegate
- (void)applicationDidFinishLaunching:(NSNotification *)aNotification
{
self.viewController = [[MyDictViewController alloc] initWithNibName:#"MyDictViewController" bundle:nil];
[self.window.contentView addSubview:self.viewController.view];
self.viewController.view.frame = ((NSView*)self.window.contentView).bounds;
[self.window makeKeyAndOrderFront:nil];
}
#end
And My ViewController.m
#import "MyDictViewController.h"
#import "FileHelper.h"
#import <Carbon/Carbon.h>
#interface MyDictViewController ()
#property (weak) IBOutlet NSTableView *wordsFilteredTable;
#end
#implementation MyDictViewController
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
self.IMAGE_FILE = [NSImage imageNamed:#"Document.png"];
self.wordlist = [FileHelper readLines];
self.filterWordlist = [[NSMutableArray alloc] init];
}
return self;
}
- (void)loadView
{
[super loadView];
[self.view becomeFirstResponder];
}
-(void)keyDown:(NSEvent*)theEvent
{
NSLog(#"Caught key event");
}
-(void)keyUp:(NSEvent *)theEvent
{
unsigned short keycode = [theEvent keyCode];
switch (keycode)
{
case kVK_Return:
[self.searchField becomeFirstResponder];
default:
break;
}
}
-(void)mouseDown:(NSEvent*)theEvent
{
NSLog(#"Caught mouse event");
}
- (NSView *)tableView:(NSTableView *)tableView viewForTableColumn:(NSTableColumn *)tableColumn row:(NSInteger)row {
self.wordsFilteredTable.rowHeight = 37;
NSTableCellView *cellView = [tableView makeViewWithIdentifier:tableColumn.identifier owner:self];
if( [tableColumn.identifier isEqualToString:#"WordColumn"] )
{
NSString *word = [self.filterWordlist objectAtIndex:row];
cellView.textField.stringValue = word;
cellView.imageView.image = self.IMAGE_FILE;
return cellView;
}
return cellView;
}
- (NSInteger)numberOfRowsInTableView:(NSTableView *)tableView {
return [self.filterWordlist count];
}
- (void)controlTextDidChange:(NSNotification *)obj
{
NSTextView* textView = [[obj userInfo] objectForKey:#"NSFieldEditor"];
self.currentWord = [textView string];
[self.filterWordlist removeAllObjects];
for(NSString* word in self.wordlist) {
if ([word hasPrefix:self.currentWord]) {
[self.filterWordlist addObject:word];
}
}
[self.wordsFilteredTable reloadData];
}
#end
And my AppView.m
#import "AppView.h"
#implementation AppView
- (void)setViewController:(NSViewController *)newController
{
if (viewController)
{
[super setNextResponder:[viewController nextResponder]];
[viewController setNextResponder:nil];
}
viewController = newController;
if (newController)
{
[super setNextResponder: viewController];
[viewController setNextResponder:[self nextResponder]];
}
}
- (void)setNextResponder:(NSResponder *)newNextResponder
{
if (viewController)
{
[viewController setNextResponder:newNextResponder];
return;
}
[super setNextResponder:newNextResponder];
}
#end
I am trying to create a custom popup menu in a tableview. As I understand it I can should be able to do so by calling the [NSPopupButtonCell setView:myView] method passing in the custom view (which is just a NSView with an NSOutlineView in it).
So I have created a NSPopupButtonCell subclass and during initialisation I call setView and pass in the custom outline view..
EDIT
In IB I have set the table columns cell to a Popup Button Cell and set
the class to my custom LookupPopupButtonCell.
I still don't get my custom view displaying but my custom classes
initialisation methods appear to be getting called.
I have since replaced this approach with using a NSTableViewDelegate method dataCellForTableColumn. Now the popup shows my custom tableView.
Still no joy in getting the NSOutlineViewDelegate methods called though.
EDIT
OK I have managed to get things working using a NSPopupButton on a view. delegate works find and table view displays things fine. Seems that using NSPopupButtonCell the delegate methods never get called.
#implementation LookupPopupButtonCell
- (id)init
{
LOG(#"init called");
self = [super init];
if (self) {
[self initialise];
}
return self;
}
- (void)initialise
{
LOG(#"initialise called");
[self setFont:[NSFont fontWithName:#"System Regular" size:11]];
[self setBordered:NO];
[self setBezeled:NO];
// Set the Task Lookup Popup Menu
NSMenu *newLookupMenu = [[NSMenu allocWithZone:[NSMenu menuZone]] initWithTitle:#"Custom"];
NSMenuItem *newItem = [[NSMenuItem allocWithZone:[NSMenu menuZone]] initWithTitle:#"Lookup" action:nil keyEquivalent:#""];
[newItem setEnabled:YES];
TaskLookupViewController *viewController = [[TaskLookupViewController alloc] initWithNibName:#"TaskLookupViewController" bundle:nil];
[newItem setView:[viewController view]];
[newLookupMenu addItem:newItem];
[newItem release];
[self setMenu:newLookupMenu];
}
#end
#implementation TaskLookupViewController
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Initialization code here.
[self initialise];
}
return self;
}
- (void)awakeFromNib{
LOG(#"awakeFromNib called...");
[self viewDidLoad];
}
- (void)viewDidLoad {
FLOG(#"viewDidLoad called for %#", self);
/*
FLOG(#" _outlineView is %#", _outlineView);
FLOG(#" _outlineView is %#", [_outlineView identifier]);
FLOG(#" _outlineView delegate is %#", [_outlineView delegate]);
FLOG(#" _outlineView dataSource is %#", [_outlineView dataSource]);
*/
[_outlineView setDataSource:self];
[_outlineView setDelegate:self];
[_outlineView reloadData];
[_outlineView selectRowIndexes:[NSIndexSet indexSetWithIndex:0] byExtendingSelection:NO];
[_outlineView setNeedsDisplay];
[_outlineView selectRowIndexes:[NSIndexSet indexSetWithIndex:2] byExtendingSelection:NO];
/*
FLOG(#" _outlineView delegate is %#", [_outlineView delegate]);
FLOG(#" _outlineView dataSource is %#", [_outlineView dataSource]);
*/
//NSTableColumn *tableColumn = [[_outlineView tableColumns] objectAtIndex:0];
//LOG(#" setting bindings");
//[tableColumn bind: #"value" toObject: _treeController withKeyPath: #"arrangedObjects.displayName" options: nil];
}
- (void)initialise {
LOG(#"initialise called");
_topLevelItems = [[NSArray arrayWithObjects:#"Project", #"Tasks and Deliverables", #"Finance", nil] retain];
_childrenDictionary = [NSMutableDictionary new];
[_childrenDictionary setObject:[NSArray arrayWithObjects:#"Scope", nil] forKey:#"Project"];
//[_childrenDictionary setObject:[NSArray arrayWithObjects:#"Issues", #"Risks", nil] forKey:#"Quality"];
[_childrenDictionary setObject:[NSArray arrayWithObjects:#"WBS", #"Functions", nil] forKey:#"Tasks and Deliverables"];
[_childrenDictionary setObject:[NSArray arrayWithObjects:#"Expenses", #"Ongoing Costs", #"Timesheets", nil] forKey:#"Finance"];
//[_childrenDictionary setObject:[NSArray arrayWithObjects:#"Applications", #"Interfaces", nil] forKey:#"IT Systems"];
//[_childrenDictionary setObject:[NSArray arrayWithObjects:#"People", #"Setup", nil] forKey:#"Administration"];
}
- (NSArray *)_childrenForItem:(id)item {
LOG(#"_childrenForItem called");
NSArray *children;
if (item == nil) {
children = _topLevelItems;
} else {
children = [_childrenDictionary objectForKey:item];
}
//FLOG(#" children are %#", children);
return children;
}
#end
#implementation TaskLookupViewController (NSOutlineViewDataSource)
- (void)outlineViewSelectionDidChange:(NSNotification *)notification {
LOG(#"outlineViewSelectionDidChange: called");
if ([_outlineView selectedRow] != -1) {
NSObject *item = [_outlineView itemAtRow:[_outlineView selectedRow]];
if ([_outlineView parentForItem:item] != nil) {
// Only change things for non-root items (root items can be selected, but are ignored)
FLOG(#" selected item is %#", item);
}
}
}
- (id)outlineView:(NSOutlineView *)outlineView child:(NSInteger)index ofItem:(id)item {
FLOG(#"outlineView:child:ofItem: called for item %#", item);
return [[self _childrenForItem:item] objectAtIndex:index];
}
- (BOOL)outlineView:(NSOutlineView *)outlineView isItemExpandable:(id)item {
LOG(#"outlineView:isItemExpandable: called");
if ([outlineView parentForItem:item] == nil) {
return YES;
} else {
return YES;
}
}
- (NSInteger) outlineView:(NSOutlineView *)outlineView numberOfChildrenOfItem:(id)item {
LOG(#"outlineView:numberOfChildrenOfItem: called");
FLOG(#" children count is %d", [[self _childrenForItem:item] count]);
return [[self _childrenForItem:item] count];
}
#end
#implementation TaskLookupViewController (NSOutlineViewDelegate)
- (BOOL)outlineView:(NSOutlineView *)outlineView isGroupItem:(id)item {
LOG(#"outlineView:isGroupItem: called");
return [_topLevelItems containsObject:item];
}
- (void)outlineView:(NSOutlineView *)outlineView willDisplayCell:(id)cell forTableColumn:(NSTableColumn *)tableColumn item:(id)item
{
LOG(#"willDisplayCell called");
[cell setTitle:#"Cell Title"];
}
- (NSView *)outlineView:(NSOutlineView *)outlineView viewForTableColumn:(NSTableColumn *)tableColumn item:(id)item {
LOG(#"outlineView:viewForTableColumn called");
// We just return a regular text view.
if ([_topLevelItems containsObject:item]) {
NSTextField *result = [outlineView makeViewWithIdentifier:#"HeaderTextField" owner:self];
// Uppercase the string value, but don't set anything else. NSOutlineView automatically applies attributes as necessary
NSString *value = [item uppercaseString];
[result setStringValue:value];
return result;
} else {
NSTextField *result = [outlineView makeViewWithIdentifier:#"ItemTextField" owner:self];
[result setStringValue:value];
return result;
}
}
- (BOOL)outlineView:(NSOutlineView *)outlineView shouldExpandItem:(id)item;
{
LOG(#"outlineView:shouldExpandItem: called");
return YES;
}
- (BOOL)outlineView:(NSOutlineView *)outlineView shouldSelectItem:(id)item;
{
LOG(#"outlineView:shouldSelectItem: called");
return YES;
}
- (BOOL)outlineView:(NSOutlineView *)outlineView shouldCollapseItem:(id)item;
{
LOG(#"outlineView:shouldCollapseItem: called");
return NO;
}
#end
#implementation TaskLookupViewController (NSTableViewDelegate)
- (NSCell *)tableView:(NSTableView *)tableView dataCellForTableColumn:(NSTableColumn *)tableColumn row:(NSInteger)row {
LOG(#"tableView:dataCellForTableColumn:row: called");
NSString *identifier = [tableColumn identifier];
if ([identifier isEqualToString:#"task"]) {
//LOG(#" task column setting the cell");
LookupPopupButtonCell *cellView = [[LookupPopupButtonCell alloc] init];
return cellView;
}
NSTextFieldCell *cellView = [tableView makeViewWithIdentifier:#"hoursCell" owner:self];
return cellView;
}
#end
It seems you must use a VIEW based tableView to get the delegate messages. Blah, now to figure out how to bind one of them to Core Data, hopefully its not too hard !
Is there any way to reuse the same menu for each row ? I guess as long as the dataSource is not recreated each time its probably not too bad, still there could be lots of rows in this hierarchy!
Yes, It might be a duplicate question of this. But since it didn't get an answer, I will be more specific on the case and code:
I have 3 involved UIViewControllers:
WelcomeView - the first one
TakePhotoViewController - the second one who is delegate of the OverlayviewController
OverlayViewController - custom view for the camera.
Scenario:
User enter WelcomeView and clicks on a button to be transfered with segue to TakeView.
UIImageViewController is being opened to take a photo.
The user clicks on cancel button - didCancelCamera method in TakePhotoViewController is being invoked and he returns to WelcomeView
The user leaves the app.
The user re-opens the app and perform step 1 again.
THE IMAGE PICKER IS NOT BEING OPENED. I COULD TAKE A PHOTO AND IT'S OK - BUT THE USER CAN'T SEE WHAT HE IS TAKING.
OverlayViewController.h
#interface OverlayViewController : BaseViewController<UIImagePickerControllerDelegate,UINavigationControllerDelegate>
#property (nonatomic,weak) id<OverlayViewControllerDelegate> delegate;
#property (nonatomic,retain) UIImagePickerController *imagePickerController;
#end
OverlayViewController.m:
- (id)initWithCoder:(NSCoder *)aDecoder
{
self = [super initWithCoder:aDecoder];
if (self) {
self.imagePickerController = [[UIImagePickerController alloc] init];
self.imagePickerController.delegate = self;
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
self.view.backgroundColor = [UIColor clearColor];
}
- (IBAction)takePicture:(id)sender {
[self.imagePickerController takePicture];
}
- (IBAction)cancelImagePicker:(id)sender {
[self.delegate didCancelCamera];
}
- (void) setupImagePicker:(UIImagePickerControllerSourceType) sourceType
{
self.imagePickerController.sourceType = sourceType;
if (sourceType == UIImagePickerControllerSourceTypeCamera)
{
self.imagePickerController.showsCameraControls = NO;
if ([[self.imagePickerController.cameraOverlayView subviews] count] ==0)
{
CGRect overlayViewFrame = self.imagePickerController.cameraOverlayView.frame;
CGRect newFrame = CGRectMake(0.0, CGRectGetHeight(overlayViewFrame)-self.view.frame.size.height-10.0, CGRectGetWidth(overlayViewFrame), self.view.frame.size.height + 10.0);
self.view.frame = newFrame;
[self.imagePickerController.cameraOverlayView addSubview:self.view];
}
}
}
- (void)finishAndUpdate
{
[NSThread detachNewThreadSelector:#selector(threadStartAnimating:) toTarget:self withObject:nil];
[self.delegate didFinishWithCamera]; // tell our delegate we are done with the camera
}
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
[self finishAndUpdate];
}
TakePhotoViewController.h
#interface TakePhotoViewController : BaseViewController<UIImagePickerControllerDelegate,UINavigationControllerDelegate,OverlayViewControllerDelegate>
#property (nonatomic, retain) OverlayViewController *overlayViewController;
#end
TakePhotoViewController.m
- (void)viewDidLoad
{
[super viewDidLoad];
UIStoryboard *sb = [UIStoryboard storyboardWithName:#"MainStoryboard" bundle:nil];
// Insert the overlay
self.overlayViewController = (OverlayViewController *)[sb instantiateViewControllerWithIdentifier:#"Overlay"];
self.overlayViewController.delegate = self;
}
- (void)viewDidUnload
{
self.overlayViewController = nil;
[super viewDidUnload];
// Release any retained subviews of the main view.
}
- (void)openImagePicker {
if([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]){
[self showImagePicker:UIImagePickerControllerSourceTypeCamera];
}
else{
[self showImagePicker:UIImagePickerControllerSourceTypePhotoLibrary];
}
}
- (void)viewDidAppear:(BOOL)animated{
if (appDelegate.shouldOpenPicker){
[self openImagePicker];
}
}
- (void)showImagePicker:(UIImagePickerControllerSourceType)sourceType
{
if ([UIImagePickerController isSourceTypeAvailable:sourceType])
{
[self.overlayViewController setupImagePicker:sourceType];
[self presentViewController:self.overlayViewController.imagePickerController animated:YES completion:nil];
}
}
-(void)didCancelCamera{
[[self.overlayViewController.imagePickerController presentingViewController] dismissViewControllerAnimated:NO completion:^ {
[self performSegueWithIdentifier:#"fromTakeToWelcome" sender:self];
}];
}
I found the bug.
The method
-(void)didCancelCamera from TakePhotoViewController is being called when the user clicks on - (IBAction)cancelImagePicker:(id)sender in OverlayViewController.
However, somehow the code in didCancelCamera causes viewDidAppear method of TakePhotoViewController to be invoked again and reopen the image picker.
I have no idea why
[[self.overlayViewController.imagePickerController presentingViewController] dismissViewControllerAnimated:NO completion:^ {
[self performSegueWithIdentifier:#"fromTakeToWelcome" sender:self];
}];
causes the viewDidAppear method of that view (TakePhoto) being recalled again.
Hope that it will help someone
- (void) showMail
{
[[CCDirector sharedDirector] pause];
NSString*myemail=#"sirano0629#me.com";
NSArray*email=[[NSArray alloc]initWithObjects:myemail, nil];
if([MFMailComposeViewController canSendMail])
{
mail = [[MFMailComposeViewController alloc] init];
[mail setSubject:[NSString stringWithFormat:#"건의 및 문의"]];
[mail setToRecipients:email];
[self presentModalViewController:mail animated:YES];
[mail release];
}
}
- (void)mailComposeController:(MFMailComposeViewController *)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError *)error
{
[mail dismissModalViewControllerAnimated:YES];
mail.view.hidden=YES;
[[CCDirector sharedDirector] resume];
//return to previous scene
[[CCDirector sharedDirector] replaceScene:[HelloWorldLayer scene]];
}
here is my code for email integration within app. First that opens email view is successfully but after I press send or cancel, the view has not going away...
can u guys please help to go throw it...
#class SingletonClass;
#interface GameCenterView : UIViewController <GKLeaderboardViewControllerDelegate,MFMailComposeViewControllerDelegate>
{
SingletonClass * singleCurrentAverage;
MFMailComposeViewController*mail;
NSInteger score;
}
-(void)showLeaderboard;
-(void)showTweetForUnder;
-(void)showTweetForPost;
-(void)showMail;
#end
header file that I use
#import "GameCenterView.h"
#import "GameCenterUtil.h"
#import "HelloWorldLayer.h"
#import "SingletonClass.h"
#import "AppDelegate.h"
#import <MessageUI/MessageUI.h>
#interface GameCenterView ()
#end
#implementation GameCenterView
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
if ([GameCenterUtil isGameCenterAPIAvailable]) {
[GameCenterUtil authenticateLocalPlayer];
}else {
NSLog(#"this device do not support GameCenter");
}
}
return self;
}
-(void)showLeaderboard
{
self.view.hidden=NO;
GKLeaderboardViewController * leaderboardController = [[[GKLeaderboardViewController alloc]init]autorelease];
if (leaderboardController!=nil) {
leaderboardController.leaderboardDelegate=self;
[self presentModalViewController:leaderboardController animated:YES];
}
}
-(void)showTweetForUnder
{
singleCurrentAverage=[SingletonClass sharedGameStateInstance];
score=[singleCurrentAverage currentAverage];
if([TWTweetComposeViewController canSendTweet]) {
TWTweetComposeViewController*tweet=[[TWTweetComposeViewController alloc]init];
[tweet setInitialText:[NSString stringWithFormat:#"대학교 점수 :%d from 성적UP iOS. \n 친구들에게 하고싶은 말을 적으세요.",score]];
NSURL*url=[NSURL URLWithString:#"http://www.facebook.com/avoidpoo"];
[tweet addURL:url];
UIImage *image=[UIImage imageNamed:#"Icon-72.png"];
[tweet addImage:image];
[self presentModalViewController:tweet animated:YES];
}
}
-(void)showTweetForPost
{
singleCurrentAverage=[SingletonClass sharedGameStateInstance];
score=[singleCurrentAverage currentAverage];
if ([TWTweetComposeViewController canSendTweet]) {
TWTweetComposeViewController*tweet=[[TWTweetComposeViewController alloc]init];
[tweet setInitialText:[NSString stringWithFormat:#"대학원 점수: %d from 성적Up iOS. \n 친구들에게 하고 싶은 말을 적으세요.",score]];
NSURL*url=[NSURL URLWithString:#"http://www.facebook.com/avoidpoo"];
[tweet addURL:url];
UIImage *image=[UIImage imageNamed:#"Icon-72.png"];
[tweet addImage:image];
[self presentModalViewController:tweet animated:YES];
}
}
- (void) showMail
{
mail.mailComposeDelegate=self;
NSString*myemail=#"sirano0629#me.com";
NSArray*email=[[NSArray alloc]initWithObjects:myemail, nil];
if([MFMailComposeViewController canSendMail]) {
mail = [[MFMailComposeViewController alloc] init];
[mail setSubject:[NSString stringWithFormat:#"건의 및 문의"]];
[mail setToRecipients:email];
[self presentModalViewController:mail animated:YES];
[mail release];
}
} // From Here You can Dismisses the email composition interface when users tap Cancel or Send.
- (void)mailComposeController:(MFMailComposeViewController*)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError*)error
{
// Notifies users about errors associated with the interface
switch (result)
{
case MFMailComposeResultCancelled:
NSLog (#"Result: canceled");
break;
case MFMailComposeResultSaved:
NSLog (#"Result: saved");
break;
case MFMailComposeResultSent:
NSLog (#"Result: sent");
break;
case MFMailComposeResultFailed:
NSLog (#"Result: failed");
break;
default:
NSLog (#"Result: not sent");
break;
}
[self dismissModalViewControllerAnimated:YES];
}
-(void) leaderboardViewControllerDidFinish:(GKLeaderboardViewController *)viewController
{
[self dismissModalViewControllerAnimated:YES];
self.view.hidden =YES;
}
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.
}
- (void)viewDidUnload
{
[super viewDidUnload];
// Release any retained subviews of the main view.
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
#end
this is my implemenation file
You have to set Your Controller as delegate for MFMailComposeViewController like
if([MFMailComposeViewController canSendMail]) {
mail = [[MFMailComposeViewController alloc] init];
mail.mailComposeDelegate = self; //<-- Add this line
[mail setSubject:[NSString stringWithFormat:#"건의 및 문의"]];
[mail setToRecipients:email];
[self presentModalViewController:mail animated:YES];
[mail release];
}
And than you have to implement following delegate method. Thats it.
// From Here You can Dismisses the email composition interface when users tap Cancel or Send.
- (void)mailComposeController:(MFMailComposeViewController*)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError*)error
{
// Notifies users about errors associated with the interface
switch (result)
{
case MFMailComposeResultCancelled:
NSLog (#"Result: canceled");
break;
case MFMailComposeResultSaved:
NSLog (#"Result: saved");
break;
case MFMailComposeResultSent:
NSLog (#"Result: sent");
break;
case MFMailComposeResultFailed:
NSLog (#"Result: failed");
break;
default:
NSLog (#"Result: not sent");
break;
}
[self dismissModalViewControllerAnimated:YES];
}
I am trying to develop a document based mac app using this Apple walkthrough and I am having issues saving the file (the final step). The error that I am getting after I try to save a file is: The document "Untitled" could not be saved as "- the new filename is I'm trying to use -"
I've googled around and not found any results for this error. I've rechecked the code and everything seems pretty solid to the tutorial. I wondered if anybody has any intuition as to what might be going wrong here.
The code of my main class is:
#import "MyDocument.h"
#implementation MyDocument
- (id)init
{
self = [super init];
if (self) {
if (mString == nil) {
mString = [[NSAttributedString alloc] initWithString:#""];
}
}
return self;
}
- (NSAttributedString *) string { return [[mString retain] autorelease]; }
- (void) setString: (NSAttributedString *) newValue {
if (mString != newValue) {
if (mString) [mString release];
mString = [newValue copy];
}
}
- (void) textDidChange: (NSNotification *)notification {
[self setString: [textView textStorage]];
}
- (NSString *)windowNibName
{
// Override returning the nib file name of the document
// If you need to use a subclass of NSWindowController or if your document supports multiple NSWindowControllers, you should remove this method and override -makeWindowControllers instead.
return #"MyDocument";
}
- (void)windowControllerDidLoadNib:(NSWindowController *) aController
{
[super windowControllerDidLoadNib:aController];
if ([self string] != nil) {
[[textView textStorage] setAttributedString: [self string]];
}
}
- (BOOL)readFromData:(NSData *)data ofType:(NSString *)typeName error:(NSError **)outError
{
BOOL readSuccess = NO;
NSAttributedString *fileContents = [[NSAttributedString alloc]
initWithData:data options:NULL documentAttributes:NULL
error:outError];
if (fileContents) {
readSuccess = YES;
[self setString:fileContents];
[fileContents release];
}
return readSuccess;
}
- (NSData *)dataOfType:(NSString *)typeName error:(NSError **)outError
{
NSData *data;
[self setString:[textView textStorage]];
NSMutableDictionary *dict = [NSDictionary dictionaryWithObject:NSRTFTextDocumentType
forKey:NSDocumentTypeDocumentAttribute];
[textView breakUndoCoalescing];
data = [[self string] dataFromRange:NSMakeRange(0, [[self string] length])
documentAttributes:dict error:outError];
return data;
}
Header file:
#import <Cocoa/Cocoa.h>
#interface MyDocument : NSDocument
{
IBOutlet NSTextView *textView;
NSAttributedString *mString;
}
- (NSAttributedString *)string;
- (void) setString: (NSAttributedString *)value;
#end
In your -dataOfType:error: method, when you assign something to data, are you sure it's not nil? Returning nil will cause this error.
I rebuilt the project from scratch with one exception: I didn't follow the step of dragging my MyDocument class to the File's Owner. The tutorial was written for a previous version of XCode even though it says it's for 3.2 (or maybe that much has happened in that version and now), but that step is unnecessary.