My program has a UITextView and I enter and scroll the text manually: [myTextView scrollRangeToVisible:NSMakeRange([myTextView.text length]-1, 1)]; The text will disappear after a certain amount of input (if text length > 200) However, when I output the content via NSLog, the text content is still valid and being updated every time I e...
Has PastryKit been successfully implemented by anyone other than Apple? This article and others give a detailed breakdown and source code of PastryKit but has anyone actually got their own content into this framework? http://davidbcalhoun.com/2009/pastrykit-digging-into-an-apple-pie ...
Hi, I'm trying to render a UIImage in Objective-C (working on a simple iPhone app (breakout-type thing) to get used to the environment). However, I'm getting an "Error: CGContextDrawImage: invalid context" error when I try and draw it. My question is: how do I set the context that the DrawAtPoint method of UIImage uses? Here the rele...
Hi, I'm trying to take my gl buffer and turn it into a UIImage while retaining the per-pixel alpha within that gl buffer. It doesn't seem to work, as the result I'm getting is the buffer w/o alpha. Can anyone help? I feel like I must be missing a few key steps somewhere. I would really love any advice on this. Basically I do: //Rea...
hi, i'm creating some UILabels in my UIView, filling them with data, adding them to view and releasing them UILabel *speed = [self scrollLabel:@"some Text" x:455.0f y:75.0f]; [scrollView addSubview:speed]; [speed release]; the method: - (UILabel *)scrollLabel:(NSString *)text x:(float)x_ y:(float)y_ { UILabel *label = [[UILabel al...
What's the secret to pulling up items that match characters typed into the search bar that react instantaneously? For instance, if I type in a letter "W" in the search bar, all phrases that contain a letter "W" in any character position within the phrase are returned immediately. So if a database of 20,000 phrases contains 500 phrases w...
Is there a way to know the email addresses to which the user has linked his iPhone to from within an iPhone application? ...
How would I figure out the location of the detail disclosure button/chevron? I'd like to place some text above and below it aligned with the button. ...
Hi there, I am just beginning using MonoTouch and having a great time with it. I am however having an issue getting to grips with how the UIControllers and views interact with each other. For instance, i am beginning the app using a UINavigationController but under certain circumstances i want to transition to a UITabController. How is...
Hi. I have been struggling with this seeminly easy problem for 48 hours, and I am no closer to a solution. So I was hoping that someone might be able to help me. I am building a app, that use a combination of a local (SQLite) database and an online database (PHP/MYSQL). The app is nearly finished. Checked for leaks and work like a char...
I've configured a NIB as follows: ...but when I display this NIB as a modal view controller, it appears on the simulator as: I recall seeing this problem a long time ago on a project, but I can no longer remember what I did to fix it. Any idea what I've done wrong here? Thanks very much. ...
I have a card game on the iphone and I really would like to take it to the next step by allowing players to interact with each other in real-time environment. My questions: Do I need a web server ? Is there a third party specifically for iphone multiplayer games that I can use to host the game? I would probably need a database - what ...
here is code + (SalesCollection*)sharedCollection { @synchronized(self) { if (sharedInstance == nil) { [[self alloc] init]; // assignment not done here } } return sharedInstance; } + (id)allocWithZone:(NSZone *)zone { @synchronized(self) { if (sharedInstance == nil) { sharedInstance = [super allocWithZone:z...
Hello. I have a MkMapView and want to keep the Map centered to the user's location, exaclty as the iPhone Map Application does when you press the scope button. I am using the setCenterCoordinate method because I don't need to set the zoom. I use it everytime the location is updated from the location manager. The problem is that as it u...
I have recently added some Core Graphics elements to my app and it has slowed dramatically, rendering it just about useless. I am not sure if I am just not using Core Graphics efficiently (how do I make it faster?) or if this problem is inherent in the use of Core Graphics. My code is below, after this description: There are speech bubb...
I have some code which runs fine in simulator, but when I try to build for iPhone, I get a cryptic error: CodeSign /Users/.../myApp.app (1 error) error: CSSMERR_DL_MISSING_VALUE That's it. No other references. Sounds like it's something about my code signing privileges, but what exactly? My private key, certificate and provisioning p...
I am trying to migrate my sandpit code into my main project but for some reason I am getting the following strange error when trying to compile syntax error before 'NSManagedObjectModel' At first I thought this was because coredata wasnt in the prefix.pch file but I have added it in there too. This is the top of AppDelegate where ...
Now I know that xCode automaticly does the GZip decrompession for you within: NSData *data = [NSData dataWithContentsOfURL:URL]; And it does work if I point to a Gzip file on my server. But since my content is dynamic, I have a PHP script that rather then create a gzip file like so: $zp = gzopen($file, "r"); $data = gzread($zp, $fi...
I have a view that contains a UITableView and a UILabel which works perfectly as far as I can tell. I really don't want to manage the UIView and UITableView with the same controller as the UITableViewController handles a lot of housekeeping and according to the documentation: If the view to be managed is a composite view in which a...
I have found many apps where you can press a button or something similar and the application will terminate and bring you back to the home screen. How would I do this? ...