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  • Which trick uses Apple to show icons in the dock contextual menu ?

    - by Matthieu Riegler
    My question is quite simple : To use a custom menu for the apps icon on the dock, - (NSMenu*) applicationDockMenu: (id) sender; of the NSApplicationDelegate has to return the menu that the dock will display. Using setImage on a NSMenuItem, you can normaly add icons to the menu. They show up on the normal menu, but not on in contextual menu of the app's dock icon. Then how did Apple manage QuickTime, XCode, Preview to show icons in the list of recent opened files accessible in their dock contextual menu ? Thx.

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  • NSTextField enter to trigger action

    - by Chris
    I've been looking all over for a simple example of how to have an action (or button) be triggered when the enter key is hit in the text field. Should I subclass the text field? Would I need to set a delegate to call the action I need? Is there a way to catch the event in my main window controller class? If you could even just point me to the right direction that would be great. Thanks.

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  • "incomplete universal character name" with stringWithUTF8String

    - by Nasser
    hi, when i try to convert form utf-8 string to NSString like so: NSString *s = [NSString stringWithUTF8String:"\U0627\U0644\U0641\U0631\U0646"]; NSLog(@"%@", s); i get the compile error: incomplete universal character name note that it sometime just works fine: NSString *UAE = [NSString stringWithUTF8String:"\U0627\U0644\U0641\U0631\U0646"]; NSLog(@"%@", UAE); and the output: ???????? so why is that happening? please help.

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  • What is alternative of "QDDisplayWaitCursor"?

    - by Akash Kava
    I am trying to display wait cursor (spinning rainbow wheel) by using "QDDisplayWaitCursor" function, but I get a warning that "QDDisplayWaitCursor" is deprecated, however everything runs fine but I would like to replace it with proper alternative of this function but I didnt find any google result and also in apple docs.

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  • Sending an image in a faceless email

    - by anurag
    I am trying to send a faceless email (sending an email without showing the interface), using the code below. I also want to attach an image to this email. Is this possible? - (void) sendEmailTo:(NSString *)toStr withSubject:(NSString *)subjectStr withBody:(NSString *)bodyStr { NSString *emailString=[[NSString alloc] initWithFormat:@"mailto:?to=%@&subject=%@&body=%@", [toStr stringByAddingPercentEscapesUsingEncoding:NSASCIIStringEncoding], [subjectStr stringByAddingPercentEscapesUsingEncoding:NSASCIIStringEncoding], [bodyStr stringByAddingPercentEscapesUsingEncoding:NSASCIIStringEncoding]]; [[UIApplication sharedApplication] openURL:[NSURL URLWithString:emailString]]; [emailString release]; }

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  • How do I change the background image of my iPhone app?

    - by alJaree
    Hello I have looked around and found some code which so called chooses an image from an array of image objects, but cant find an explanation. I would like to make my app have a background image and the user can select next and previous buttons to scroll through some full screen images, setting them as the background image as they scroll. I know how to do this in java, but cant seem to do it for this app. How or what code is linked to a next button to grab the next image in the array and reverse for the back button? Then that needs to be displayed obviously. I have used a layered architecture with a MVC style approach but cant seem to put it together with Objective-C. Would the buttons call the appropriate methods of the so called delegates, which the delegates handle fetching and returning the Images? Would the buttons use the returned images and actually handle the redrawing? I would really appreciate the help. Regards Jarryd

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  • UITableView does not scroll to cell

    - by Sheehan Alam
    I am trying to scroll my tableview to the 2nd cell: [self.tableView scrollToRowAtIndexPath:[NSIndexPath indexPathForRow:1 inSection:0] atScrollPosition:UITableViewScrollPositionNone animated:NO]; I get the error: *** Terminating app due to uncaught exception 'NSRangeException', reason: '-[UITableView scrollToRowAtIndexPath:atScrollPosition:animated:]: section (1) beyond bounds (0). ' My tableview has 30 cells that are appearing with no sections.

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  • string or nsstring with string

    - by joels
    Lets assume myProp is @property (retain) NSString * myProp and synthesized for us.... self.myProp = @"some value";//string literal? self.myProp = [NSString stringWithString:@"some value"]; Is there a difference here? Is the first one a string literal that doesnt get autoreleased or is it just in memory for it's current scope and I dont have to worry about it?

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  • Display keyboard above toolbar?

    - by Sheehan Alam
    I have a view with a bottom toolbar and a UIWebview that is loading an HTML page with some textboxes. Is there anyway when the user clicks on a textbox, the keyboard appears above the toolbar, that way it doesn't hide its buttons?

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  • Do, custom fonts work in UITextView that was loaded in cocos2d layer ?

    - by srikanth rongali
    Do, custom fonts work in UITextView ? I loaded UITextView *textView in cocos2d layer. And I trying to set the font of the text as Copperplate Gothic Bold. I downloaded the font file Coprgtb.TTF. But, the text is not adjusting to this font. The system fonts are working, but the custom fonts are not working ? I added the font file in resources folder. what can I do to make them work ? Thank You.

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  • NSTableview objectAtIndex error

    - by Matt S.
    I followed the guide here, but for some reason, the table view shows this in the console when I attempt to scroll through it: -[NSCFString objectAtIndex:]: unrecognized selector sent to instance 0x100227710

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  • UIsearch rearrange the indexpath.row

    - by abuyousif
    i have a problem that i have spend about a week trying to solve it, but no luke up to now. i have a uisearchbar implmented into my table view. and i also have two nsarray, one for tilte and one for discription. when i search through the array of the titles it returns the rights search, but when i click on a row that the search came with, i get "row 0" if i click on the first row. my question is how to make a connection between the two arrays so when the search rearrange the titles based on the user search the discription array correspond to the same row the title is at. i appreciate any help.

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  • I could not understand where the memory is leaking in my code ?

    - by srikanth rongali
    I have the following code. I do not understand the problem in it. Whenever I include this class in my class the code is going to infinite loop. I could not get where I am wrong. please help me. Just point the errors in the code. #import "readFileData.h" #import "DuelScreen.h" @implementation readFileData @synthesize enemyDescription, numberOfEnemies, numberOfValues; @synthesize enemyIndex, numberOfEnemyGunDrawImages, numberOfEnemyGunFireImages, numberOfEnemyDieImages; @synthesize countDownSpeed, enemyGunDrawInterval, enemyGunFire, enemyRefire; @synthesize enemyAccuracyProbability, enemyGunCoordinateX, enemyGunCoordinateY; -(id)init { if( (self = [super init]) ) { NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *documentsDirectory = [paths objectAtIndex:0]; NSString *path = [documentsDirectory stringByAppendingPathComponent:@"enemyDetals.txt"]; NSString *contentsOfFile = [[NSString alloc ]initWithContentsOfFile:path]; NSArray *lines = [contentsOfFile componentsSeparatedByString:@"#"]; numberOfEnemies = [lines count]; int nEnemy; nEnemy = 0; NSArray *eachEnemy=[[lines objectAtIndex:nEnemy] componentsSeparatedByString:@"^"]; DuelScreen *enemyNumber1 = [[DuelScreen alloc] init]; NSLog(@"tempCount value in: readFile: %d", enemyNumber1.tempCount); enemyIndex = enemyNumber1.tempCount - 1; countDownSpeed = [[eachEnemy objectAtIndex:0]intValue]; enemyGunDrawInterval = [[eachEnemy objectAtIndex:1]floatValue]; enemyGunFire = [[eachEnemy objectAtIndex:2]floatValue]; enemyAccuracyProbability = [[eachEnemy objectAtIndex:3]floatValue]; enemyRefire = [[eachEnemy objectAtIndex:4]floatValue]; numberOfEnemyGunDrawImages = [[eachEnemy objectAtIndex:5]intValue]; numberOfEnemyGunFireImages = [[eachEnemy objectAtIndex:6]intValue]; numberOfEnemyDieImages = [[eachEnemy objectAtIndex:7]intValue]; enemyGunCoordinateX = [[eachEnemy objectAtIndex:8]floatValue]; enemyGunCoordinateY = [[eachEnemy objectAtIndex:9]floatValue]; enemyDescription = [eachEnemy objectAtIndex:10]; } return self; } @end

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  • Objective C Naming Convention for an object that owns itself

    - by Ed Marty
    With the latest releases of XCode that contain static analyzers, some of my objects are throwing getting analyzer issues reported. Specifically, I have an object that owns itself and is responsible for releasing itself, but should also be returned to the caller and possibly retained there manually. If I have a method like + (Foo) newFoo the analyzer sees the word New and reports an issue in the caller saying that newFoo is expected to return an object with retain +1, and it isn't being released anywhere. If I name it + (Foo) getFoo the analyzer reports an issue in that method, saying there's a potential leak because it's not deallocated before returning. My class basically looks like this: + (Foo *) newFoo { Foo *myFoo = [[[Foo new] retain] autorelease]; [myFoo performSelectorInBackground:@selector(bar) withObject:nil]; return myFoo; } - (void) bar { //Do something that might take awhile [self release]; } The object owns itself and when its done, will release itself, but there's nowhere that it's being stored, so the static analyzer sees it as a leak somewhere. Is there some naming or coding convention to help?

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  • Push notification or thread with timer

    - by neha
    Hi all, In my application, I'm having functionality like twitter that when you have not refreshed your screen, and if there're new messages then you get this message that "You have n new messages" and a refresh button, which on press will refresh the screen. I'm basically fetching all the data from an xml with some url. In case of thread, I need to call a timer after some time period which might affect the app performance. Can anybody please suggest wheather what will be better to use push notifications or thread with timer? Thanx in advance.

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  • List show/add/remove View

    - by Michael
    Looking for some best practices of UI list on iPhone which has item add/modify/delete functions. Please refer to some sample codes or articles to build user friendly interface. The main application is tab bar application and one of the tabs supposed to show item management. The item itself consisting of 3 text items, first one can be label, it's short, the rest if it's not terribly complicated I would like to show below with small font or show when user taps on item entering edit mode... Not sure how to design all this and which views to use.

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  • Is this the correct way to reloadData on a UITableView?

    - by Sheehan Alam
    I am trying to append objects to my data source and then reload the table. Is this the correct way of approaching it? self.items is my datasource //Copy current items self.itemsCopy = [self.items mutableCopy];//[[NSMutableArray alloc] initWithArray:self.items copyItems:NO]; NSLog(@"Copy Size before append: %d",[itemsCopy count]); //Get new items int lastMsgID = [self getLastMessageID]; [self.coreData getMoreMessages:self.title lastID:lastMsgID]; //This will update self.items with 30 objects //Append new items [itemsCopy addObjectsFromArray:self.items]; //Empty items and copy itemsCopy [self.items removeAllObjects]; self.items = [self.itemsCopy mutableCopy]; NSLog(@"Actual Size after append: %d",[self.items count]); //Reload data [tableView reloadData];

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  • Adding text labels to sliders in iPhone Settings application

    - by Kevin L.
    When configuring a Settings.bundle as part of an iPhone application bundle, it's trivial to add minimum and maximum value images to sliders (PSSliderSpecifier), but not simple maximum and minimum text labels. http://developer.apple.com/iPhone/library/documentation/PreferenceSettings/Conceptual/SettingsApplicationSchemaReference/Articles/PSSliderSpecifier.html iPhone gurus: Is anyone aware of a simple means to apply text labels to these sliders for use within the Settings application (therefore, no slider subclassing shenanigans; it all has to be done via a plist)? I suppose I could just use an image of the label but...ew. Bonus points if there's a way to show the current value of a slider in some sort of number format.

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  • How to get attributes from an element in XML

    - by iSight
    I have constructed an XML tree structure of an XML file. I am able to trace the entire tree. When i want to retrieve the attributes of an element, it is returning as NSXMlNode of kind NSXMLAttributeKind. How can i extract the key value pairs in the attribute node.

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  • Using Yahoo local search query for iPhone

    - by robbmcmahan
    I'm using yahoo local search in an iPhone app and trying to query everything in a certain location. According to the api docs you can pass "*" to query and it will return everything. I've tried passing it several different ways, including the way below but it does not work unless I actually pass it a real query. Does anyone know how or what I need to pass to make it query everything? [self setQuery:[@"*" stringByAddingPercentEscapesUsingEncoding:NSASCIIStringEncoding]]; Thanks

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  • MKMapView maptype not changing!

    - by TheLearner
    I cannot understand why my MKMapView does not want to change to satellite view. This method is called and case 1 is called I have stepped over it but it simply does not change to satellite type it always changes to standard. It only works when it goes back to Map type. Anyone have any ideas? - (IBAction)mapSatelliteSegmentControlTapped:(UISegmentedControl *)sender { switch (sender.selectedSegmentIndex) { case 1: //Satellite self.mapView.mapType = MKMapTypeSatellite; default: //Map self.mapView.mapType = MKMapTypeStandard; } }

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  • Make a table row's text editable immediately

    - by Ricky
    I have an NSTableView in my user interface, where new rows are added when the user presses a button or keyboard shortcut. Each row consists of two text cells (the table is comprised of two columns). Is there a way to immediately select the first text cell of a new row which is added? So, basically, I would like the user to be able to press the button, adding a new row to the table and then having it editable straight away.

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