iphone

How to save image in photo album?

I am using GLImageProcessing sample code.I want to save modified image in photo album how it possible.please help me. ...

UITableViewController back button must be pressed twice?

Hey all, i simple open a UITableView with [self.navigationController pushViewController:memberView animated:YES]; The View opens correctly, but if i press the back button only the text changed from "Back" to "Profile" which is the Title of my originally view, another button click navigates back as expected. It seems to me that the m...

Compiling Libs for iPhone projects

I'm new to XCode. My iPhone project is dependent on FreeType. I got the source, but it needs to be statically compiled and included with my project. I tried adding a target and adding the include and src directories but this resulted in 3200 compiler errors, most of which complaining about no build rules. I'm just not sure how to do this...

How can I change interfaceOrientation on UIView

I want set interfaceOrientation in one UIView as LandscapeLeft and Portrait in other UIView. How can I do this? Or maybe change view to new, that designed for portrait on rotating iphone in this mode? how? ...

Applying a texture to stroke a CGContextStrokePath

I am working on making a simple drawing program. So far I am able to stroke the path with a given color and that all works out fine. I was wondering if there was a way to stroke it with a texture instead of a color. Say for instance I want to give the path the look of a pencil line. Any idea on how I would go about doing that? Thanks in...

Customizing an UITableViewCell subclass

I would want to create a custom tableviewcell which should have a different appearance than the default implementation. For this I subclassed the tableviewcell and want to add a label, textbox and a background image. Only the background image seems not to appear. Maybe I'm completely on the wrong track here and maybe subclassing a UItabl...

How to have multiple rows of items on a UIToolbar?

I'm trying for what is done in Apple's "Maps" app when "Directions" is selected: Does anyone know how to have multiple rows of UIBarButtonItems? I haven't found the answer anywhere. I can add items in a single row to the UIToolbar as follows: NSArray *newItems = [NSArray arrayWithObjects: settingsButton, textFieldStartItem, goBut...

How to produce a read only iphone app like a book

I'm new here to stackoverflow, so bear with me. I have a book that I wrote, that I would like to have available as an iPhone app. All I want it to do is just show my content. I have done some work putting my book into excel, then into a csv format for importing into a database, so the content is all organized ok, and is in fairly accessi...

[release] strategy for two mutually exclusive UIViews (iPhone)

Hi I have been doing spring cleaning in my app. I noticed something strange, that, when I tried to correct it, completely crashes my app. There are two "paths" in my app; either you are in the "A" part of it or you are in the "B" part. From the "A" part you can go to the "B" part and the other way around. I designed it so that the app ...

How do I scroll a set of UIScrollViews together?

Setup: I have a UITableView, each UITableViewCell has a UIScrollView. What I am trying to do is to get all of the UIScrollViews to scroll together, such that when you scroll one of them all of the UIScrollViews appear to scroll simultaneously. What I've done is subclass UITableView so that it has an array of all of the UIScrollViews wit...

Self modifying code - iPhone

Hello, After reading this wikipedia article : http://en.wikipedia.org/wiki/Self-modifying_code I am wondering if this technique has been done on iPhone. Thanks Thierry ...

UIViewController not loading a UIView

Hey, I'm playing around with a script my teacher provided for a table based application. However I can't seem to get my own view to load. Files: SubViewOneController (which is a sub view, also has a nib) TapViewController (Custom UIView I created and want to add to a cell) RootViewController (Main controller which loads in the views) ...

How to get a UIViewController from a UIView via code

Guys, There is a way to get a view controller reference from a UIView object? I need something like this: MyParentViewController *myParentViewController = [self.view.superview controller]; Thanks in advance. ...

How To load XML file into iPhone project

I have an XML documment that I want to load for the iPhone, do I need to convert it to a plist first ? if so how ? The xml document has the following code ( for 1 chapter) <toolTipsBook> − <chapter index="1" name="Chapter Name"> <line index="1" text="line text here"/> <line index="2" text=" line text here "/> <line index="3" text=" li...

iphone tableview cells memory leak?

SO, I have a tableview with 20 cells each with a text title, a subtitle label and a textfield (with a button to give it a nice background), but I find that after scrolling the tableview a few times it starts to slow down in the simulator. I figure this is a memory leak, but I thought I'd already released everything that I needed. Any c...

convert an array of NSValues / CGPoints to a CGPoint struct for use with glDrawArrays in cocos2d

Hi there, I'm pretty new to Objective-C and even C in general here, so please bear with me. My main goal is to display my NSMutableArray of CGPoints (via NSValue) with glDrawArrays(GL_LINE_STRIP, 0, points); I noticed that cocos2d requires an array(?) pointer *poli like so: void ccDrawPoly( CGPoint *poli, int points, BOOL closePolyg...

Inconsistent crash due to "message sent to deallocated instance" in iPhone App

Hi There, Originally, my application was crashing do to BAD_EXEC_ACCESS. I turned on NSZombieEnabled, that output is below. The crashing is extremely inconsistent, If it crashes, it always crashes in one of three places, but it doesn't always crash when passing over those lines of code. I.e. sometimes it crashes at one of those places w...

UItableview grouped cell.image causing square corners

I am using UItableview grouped and adding images to the cell using cell.imageView setImage: When I add the image it causing the grouped table to have square corners. I am trying to duplicate the same look as the itunes iphone app which keeps the corner radius. Can someone point me in the right direction. Notes using iphone 3.0 as bas...

Smaller active area for custom UIBarButtonItem

I have a UINavigationBar with a custom UIBarButtonItem (which uses a UIButton as its custom view). The problem is: the active area of the custom button is much too large, if I tap at least 40 pixels outside the button, it still gets registered as a tap on the button. This results in accidental taps. How can I reduce the active area on th...

How do I texture map a cube in OpenGL ES?

Having a lot of trouble getting texture maps to work in openGL ES (iphone). Here's what I've done: built an array of vertexes built an array of faces that reference the indices of the array of vertexes for each face built an array of colors so I can be sure I know which vertex on the cube is which. All of this following Jeff Lamarc...