I get a crazy error and I am unable to see why it happens. I have made a simple app that uses a TabBar to navigate 3 views. I created everything and added one UIImageView to each of the 3 ViewControllers that the TabBar manages. Everything works fine. In the app you are able to navigate the 3 views and see the 3 images. Now I add one UI...
This happens like once every 100 times I open my app. Normally all the UILabel work fine and have a white background. But every once in a while, the app opens and they all have a black background. Then it's black on black text and you can't read anything. I've tried setting the backgroundColor to white or clearColor. Doesn't seem to...
I dabbled in some iPhone development and there seems to be two strategies: use the iPhone specific libraries with ObjectiveC & XCode use cross-platform libraries like OpenGL, OpenAL with C/C++ and an editor of your choice Coming from the Windows/Linux C/C++ world, I took the second strategy and used Emacs and C/C++ for my app. I used...
I have created a UITableView and would like a specific UITableViewCell to appear selected (blue) when the view is loaded. ...
I have an NSString and want to fit it into a rectangle. The rectangle has a specified size, lets say width=150 and height=30. When the String is short and has only one character, it can be as high as the rectangle. More specific: It can have a big font size. But if the string has too much characters and would exceed the bounds of the rec...
Fonts are like a coin lost in the forrest: You're never sure where to look first. Had to say that ;-) Ok, so the problem: I come from the web dev world and my mind is screwed up completely regarding fonts. There is a UIFont class that can be used to specify how text in a label should look like. Unfortunately it seems I have to know a lo...
I'm learning iPhone programming and I'd like to know if there is some big, most-use, general purpose custom framework that extends functionality and makes it easier to develop apps, like jQuery does in the web realm, but for native apps. ...
In UIFont, I couldn't find a color property. What's the trick to make a font appear green, for example? ...
Basically I want to set Content-Type: application/json; in order to call a dot net web service and have it return json to an iphone application. At the moment I have NSString * jsonres = [[NSString alloc] initWithContentsOfURL:url]; What do I need instead in order to issue a blocking request ? ...
Hey guys, i ready many many questions about that point, but i really didn't get the right one yet. So.. this is the problem.. This is my first project with cocos2d, so sorry for that. I have one scene called Gameplay inside that i have one Layer with the name Grid and inside of this grid, have many many Block (Layer too). I need chec...
I'm moving my initial steps in the Core Data realm (and I'm quite new to iPhone development, too) and I found a behavior I cannot explain. I declared a subclass of a NSManagedObject and defined a few properties, some of them of type NSString *, MyObject.h is something like: @interface MyObject : NSManagedObject { } @property (nonatomi...
I'd like to create a fairly complex row in my UIPicker. All of the examples I've seen create a view from scratch like so... - (UIView *) pickerView:(UIPickerView *)pickerView viewForRow:(NSInteger)row forComponent: (NSInteger)component reusingView:(UIView *)view { CGRect cellFrame = CGRectMake(0.0, 0.0, 110.0, 32.0); UIView *new...
Anyone want to share an Xcode project that has MGTwitterEngine in it? Mine won't compile. Are there certain project settings to set? I just made a stock tab bar app for iPhone and added the MGTwitterEngine files. Tons of compiler errors. What am I missing? ...
I have some data structures in my app that I need to persist upon receiving 'didReceiveMemoryWarning' notification. The data is kind of a running log of all of the actions the user has performed with the app (which is a game) The data I have may not be a small amount (possible > few hundred KB) so plists don't seem to be the right solut...
Is there a way to achieve a blurry or glowing effect for the text? Or would I have to fetch the graphics context of the layer and then apply some kind of gauss algorithm on the pixels? I searched the documentation on this but it appears that shadows don't draw blurry and there's no method in NSString, UIFont or UILabel that could help to...
Hello, does anyone know, how I can create a Textfield, like the "To" Field in Mail? I mean a field, where you can start typing the contacts name and all possible contacts appear in a List under your textfield. And when you select an entry, the entry is entered in your Textfield and shown as some sort of bubble. Has anyone an idea how to...
I have some short text that I want to ship in the currently active language. What's the most easy way to do it? Example: I have the text "the cat", but when someone from spain uses the app, he/she wants to read "el gato". Is there a standard way to do it easily with UIKit? They're pretty simple texts only. I can imagine some kind of prop...
i have following buttons in my application. Now i want to set equal spacing among all buttons. Suppose If I am using corelDraw or Photoshop, there is always an option for align & distribute. Here I need to distribute my objects vertically. How is that possible in interface builder of iPhone? Sample image is given below, in which dis...
I have a UILabel that displays some chars. Like "x", "y" or "rpm". How can I calculate the width of the text in the label (it does not ues the whole available space)? This is for automatic layouting, where another view will have a bigger frame rectangle if that UILabel has a smaller text inside. Are there methods to calculate that width ...
NSXMLParser has three types of init. -> init -> initWith Data -> initWithContents of URL => But my xml file is stored at Application's Document directory, so how to parse a file which is stored at "Doc Dir" Thanks in advance. ...