Hi, I had a look at instruments and I saw that the alloc increased the retain count by 1. So far everything clear. But the assignment of the class to my property also increased the retain count to 2. self.myProperty = [[MyClass alloc] init] Vs. MyClass *myCreatedVariable = [[MyClass alloc] init]; self.myProperty = myCreatedVariable ...
hello all, So I am trying to send an in application email on the iPad using the MFMailComposeViewController. However, everything I am reading shows how to set it up and get it ready, but not how to actually send it! I have the delegate all set up and handling the button clicks, but am not sure how to say "Now go send the email". Can...
Hy Everybody, i have the following situation. I have an NSMuttableArray filled with an xml file which I want to search. When I enter something in the searchfield I get this Error: "-[NSCFString countByEnumeratingWithState:objects:count:]: unrecognized selector sent to instance 0x5b388b0" What does it means and how can I fix it?!? I s...
Is there any way in iOS SDK to detect the presence of an active Bluetooth keyboard? As many well know, when a Bluetooth keyboard is active, the on-screen keyboard does not show, so interface placements might have to change... Right now I am doing this semi-passively by responding to keyboard events, but those notifications are a little ...
I have an iPad app that is set to start in landscape mode. From what I read, the UIWindow itself doesn't need to be rotated, instead it will apply a rotation transform to all of it's subviews when the device is rotated. My application has a UINavigationController which has the app's views, and above it a custom MenuBarViewController wh...
Hello world! Sorry if im asking something stupid but please dont shoot me down! I have done a little playing in xcode but nothing more than a button press counter kindof thing.. I was curious.. when developing with the retina display in mind you obviously produce higher resolutions png's and what not for the new display.. How would y...
Hi everyone, The iOS app I'm currently working on is tabbar-based, and one of the tab is a UITableViewController. The thing is, when I open this tab with an empty datasource (for whatever reason), I'd like to bring another view, with some kind of message/image, instead of the blank view I get with the tableviewcontroller. I tried some...
Hey Guys, My question is as easy as that: What is the best method to create character for example in Cocos2D? Here's an example: I want to create an enemy of my "Ninja". The enemy has a strength of 0.5 and a speed of 50. How would you implement this? A subclass of CCSprite or CCLayer or something completely different? I tried with...
Hi, is it possible to have a QuickTime video with alpha layer (transparency) play on top of a static dynamic background UIView (i.e. a view that changes occasionally) on the iPad? Thanks! ...
Hi guys, i got a problem, if I run this code: NSString *xml = [[NSString alloc] init]; xml=[NSString stringWithFormat:@"<%@>", @"msg"]; NSLog(@"%@\n",xml); [xml release]; I got: 2010-09-07 11:45:15.523 test[1312:207] <msg> 2010-09-07 11:45:15.527 test[1312:207] *** -[CFString release]: message sent to deallocated instance 0x3d52ba...
Hi, I have an NSTableView, with two columns. Whenever I add data to the table, both columns display the same data. How do I only update a specific column? I'm doing Mac Dev btw. This is the code I'm using: - (id)tableView:(NSTableView *)streamView objectValueForTableColumn:(NSTableColumn *)messageCol row:(int)row { return [[str...
Why would you drain an autorelease pool instead of releasing it? ...
What does it mean to have a weak reference to a framework in iphone sdk? ...
Hello together, I want to get the height of a CGRect-rectangle. I have a simple problem in understanding why these lines return 0 height: CGRect lalaframe = CGRectMake(10, 30, 45, 50); NSLog(@"_height of test frame = %d",lalaframe.size.height); Should be an easy fix... Thanks! ...
I would like to know how to create an object of the specified Class in objective c. Is there some method I am missing in the runtime docs? If so what is it? I would like to be able to do something like the following: NSDictionary *types; -(id<AProtocol>) createInstance:(NSString *) name { if ((Class cls = [types objectForKey:name])...
-(void)viewWillAppear:(BOOL)animated { //setup toolbar [self.navigationController setToolbarHidden:NO]; self.navigationController.toolbar.barStyle = UIBarStyleBlackTranslucent; self.navigationController.toolbar.alpha = .8; self.navigationController.toolbar.tintColor = [UIColor colorWithRed:6.0/255.0 green:95.0/255.0 blue:163.0/255....
Hi all, I have setup an array full of words as objects. I am trying then trying to compare what the user enters in a uitextfield to an object in the array to see if they match. I have captured a pointer to the uitextview in one of the delegate methods, however I cannot compare the text field contents to the object in the array. I assu...
I'm implementing the lazy table images algorithm similar to how facebook does. I got this from an example given by apple: http://developer.apple.com/iphone/library/samplecode/LazyTableImages/Introduction/Intro.html It works fine up until I start getting memory warnings. My images are stored in a dictionary, that links up a key to an ima...
Hi everyone, I'm trying to swap two strings but I'm not sure if what I am doing is legal (coming from java I'm new to the whole retain count memory management). Here's my code: NSString *temp = [[NSString alloc] init]; temp = originalLanguageCode; originalLanguageCode = translatedLanguageCode; translatedLanguageCode = temp; [temp rele...
Possible Duplicate: Why does C++ support memberwise assignment of arrays within structs, but not generally? Why is it that we can assign the object of one structure to other directly eg: struct student s1,s2; s2=s1 //is perfectly ok. but we can not assign one array value to the other eg: int a[10],b[10]; a=b //is not all...