iphone

How does autosize work in iPhone SDK?

Hi, I'm trying to do the following: I need to do a lot of custom things, so I subclassed everything. I'm having issues with autoresize and positioning. For instance the UIToolBar is not at the correct position. So here is the question: If you don't use UITableViewController or any other Controller, that takes care of all the posi...

memory management question -- releasing an object which has to be returned

Hi, I have an NSMutableArray called playlist. This is in a method called getAllPlaylists. The code is something like this: -(NSMutableArray *)getAllPlaylists { //playlist is an instance variable playlist = [[NSMutableArray alloc] init]; //memory leak here ... //some code here which populates the playlist array [pla...

Why does CGPDFPageGetDrawingTransform() crash with SIGABRT when specifying a rotation?

When I call CGPDFPageGetDrawingTransform() with a rotation argument, the application crashes. If I specify no rotation, there is no crash. Here is my drawLayer:inContext: method: - (void)drawLayer:(CALayer*)layer inContext:(CGContextRef)context { CGContextSetRGBFillColor(context, 1.0, 1.0, 1.0, 1.0); CGRect boundingBox = CGContextG...

backing up user data

in my app the user saves data in archive using core data and sqllite. 1. is there a way letting him the option to back up his data and restoring it in the future? 2. does the user info is backed up with the iphone regular back up? thanks shani ...

CATransaction: Layer Changes But Does Not Animate

I'm trying to animate part of UI in an iPad app when the user taps a button. I have this code in my action method. It works in the sense that the UI changes how I expect but it does not animate the changes. It simply immediately changes. I must be missing something: - (IBAction)someAction:(id)sender { UIViewController *aViewControll...

UIWebView action sheet popup on a link - customization

Hi, I'm trying to replace or add more options into the action sheet popup in uiwebview. When touching long touch on a link standard uiwebview popup shows up. I saw some apps which did it, but i can't figure it out. the standard options are : open or copy, i want to hide copy and add send email. Any help ? Thanks Albert ...

Loading local html pages in UIWebView

I'm working with a UIWebView loading local (i.e. in the source bundle) html pages, ala Apple's Transweb example. Loading the first page is trivial. However, I have added a second html page and linked to it from the first. Attempting to link to a second page doesn't seem to work. Anyone know how to make this work? Thanks. ...

Read/Write on Plist file without using the iPhone SImulator?

Hello all, i am using an example from the iphone developer book from apress. the problem is that this example only works on the simulator im trying to figure out how i can make it work on the device. This chapter isn't working at all. below is the sample code. data.plist is located in the resource folder. NSArray *paths = NSSearc...

Is there a way to prevent UIImagePickerController change statusbar style?

UIImagePickerController changes statusbar style to black/opaque. I want to keep status-bar style black/translucent. I'm finding a way to prevent status bar style changing. Or making it transited smoothly. Now, presenting UIImagePickerController changes status-bar style instantly, even -[presentModalViewController:picker animated:YES] spe...

iPhone SDK: How to add multiple labels to table cell?

I am trying to create a custom table cell that has multiple labels. I already have code to create a custom cell. My problem is, it is just not that pretty. What I need is some pointers on how to apply multiple labels each of which may be a different color, font, etc. These are the labels I would like to include and they should appear ce...

Creating settings like the Mail settings in the Settings app

I want to create some settings much like the Mail settings within the Settings app. These allow you to add mail accounts to the end of the table First screen --------------- + | add account | --------------- When they click on the cell, they are pushed onto a new screen where they fill in a few textfields Second screen --------...

Vertical page flip

Is it possible to rotate a view so that I can use UIViewAnimationTransitionFlipFromLeft/Right to create vertical page flips? ...

UIActivityView and blocking

Hello, I have a section of code that uploads an image: [activity startAnimating]; [self uploadImage:img Session_id:appDelegate.sessionID PlaceID:place.placeID Comment:comment.text]; [activity stopAnimating]; I am sure that activity is wired up correctly to a UIActivityViewIndicator, but it never shows. Inside the uploadImage functi...

How much of the "Objective-C" I'm learning is universal Objective-C, and not Apple's frameworks?

This question is related to one of my others about C: What can you do in C without “std” includes? Are they part of “C,” or just libraries? I've become curious lately as to what is really contained the the core Objective-C language, and what parts of the Objective-C I've done for iPhone/OS X development is specific to Apple platforms. ...

How do I call a variable from another class?

I have a class called 'Constants' that I am storing a String variable in. This class contains a few global variables used in my app. I want to be able to reference this class and call the variable (called profileId) in other Views of my app. I looked around and found a few examples, but am not sure how to do this. Currently my setup is...

iPhone not returning to application after calling eMail send

I am sending an email from within my iPhone application. The eMail page pops up ok, I click on the Send button, the iPhone plays a whoosh sound, and the eMail actually arrives at the recipient. Unfortunately, the mail dialog still sits there unresponsive, and the only option - to click the home button - kills the app. Is there somethi...

UIImages on UITableView?

what is the best method to display about 300 png images into a UITableView.. i dont wanna display them at the same time... i have 3 tableViewControllers that will each display about 100 imgaes.. (its for a catalog so the images are important to display) i used [uiimage imageNamed:] but that method caches the images and they dont get ...

Does an app name have to be unique between the iPhone and iPad app store?

If there was an iPhone app called 'gears' could I release a app for iPad called 'gears'? Also, has anyone heard if Apple will move towards limiting unique names to a category so it would be possible e.g. 'gears' the game and 'gears' the productivity app? App naming seems like a dark art. Any pointers to resources on Apple's stance woul...

How do I use a UIView subclass as a container?

I'm trying to subclass UIView to create a custom view that is essentially a container. The subclass contains a UILabel and a UIImageView- I can't make either of them show up. Here's an example of what I've been trying: In my main view controller: - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil { if ...

iPhone SDK UI element preview

Looking for some catalog/gallery(not UICatalog, just images), where I can see preview of each UI element in iPhone SDK, along with corresponding class name(eg datetime picker, calendar, the black switch bar on bottom). This will give me rough idea on which UI elements I can use in my app and go read about corresponding class. ...