ios4

representing people iOS

This is a "is it best to use the address book" question. As part of an app for iOS 4.0 I'm writing, I want to represent that a person has requested something. How I was wanting to do this is allow the user to select a person from their address book using the AddressBook.framework. What I would like to know is whether this is the best a...

UIImagePickerController camera freezes when flash goes off on iPhone 4

Using the camera to capture an image ... everything works fine UNLESS the flash goes off (which is does automatically in low light situations). Is anyone else seeing this? What, if any, solutions are there to this problem? Thanks ...

iOS4 creating two UIActionSheets, 3.1.3 creating one? Why?

The code below creates one UIActionSheet in XCode 3.2.2, iPhone OS 3.1.3. Embedded in the Action Sheet is a date picker. But it seems create two sheets in XCode 3.2.3, iOS4, with one overlaid on the other. Also, I get this error in the console (again, only with XCode 3.2.3, iOS4): wait_fences: failed to receive reply: 10004003 What ...

Interface Builder is unable to open documents of type CocoaTouch XIB

I just installed the laster XCode and iOS SDK and I keep getting the following error when I open a XIB file. "Interface Builder is unable to open documents of type CocoaTouch XIB." ...

How to use MPMoviePlayerViewController on iOS4(3.1.3 update)

My iPhone is a iOS4(3.1.3 update). I tryid this code. #import <UIKit/UIKit.h> @interface testViewController : UIViewController { } @end //------------------------------------------------- #import <MediaPlayer/MediaPlayer.h> #import "testViewController.h" @implementation testViewController - (void)viewDidLoad { [super viewDidLoad];...

Weird problem with a sqlite3-database (Can only write once)

Hey, i have a huge problem with my sqlite3 database on the iphone sdk 4. I can only write/read the database once! With the iphone sdk 3.2 everything had just worked fine. After the first try i get the errormessage "SQLITE_BUSY". Here's a snippet of my code i use: -(void) addFavoriteOdv:(Odv*)odv name:(NSString*)name; { @synchroni...

Playing audio in iphone3 and iphone 4

I did an iphone app that works on iPhone 3GS but not in iPhone 4. Here's the description of how it works: First place a call to some one from iPhone Put the call on speaker phone Go to home screen of iphone Launch my app that plays some audio When the caller lifts the phone he will be able to hear the audio (if it goes to voice mail, i...

Xcode unable to create new "Window-based application" iphone app from template

I'm trying to create a new "Window-based Application" in Xcode and I'm getting the following message: Internal Error File: /SourceCache/DevToolsIDE/DevToolsIDE-1688/pbxinterface/Wizards.subproj/PBXWizardChooserWizard.m Line: 1365 Object: <PBXProjectWizardChooserWizard:0x200b845e0> Method: sheetDidEndWithReturnCode:fileSystemLoc...

UIToolbar tint on iOS4

Hi guys, just switched to iOS4 on my iPhone 3Gs and some of my apps broke. One issue I had is that I had a UIToolbar with some buttons, tinted to pink, that worked well on the 3.1.3 OS. After upgrading to iOS 4, the toolbar was still tinted, but the buttons it contained were no longer affected by the tint. The toolbar was pink while th...

ios4 sdk, uiwebview with custom buttom on it

I'm using iPhone OS 4 and creating an application. I've a webview, over which I'm placing two custom buttons with images (no text). When I'm running the app, I'm not seeing the buttons at all. any suggestions? I've a tab bar view and one of the view has this web view. Edit: You can download the XIB and related files from http://dl.dro...

NSOperationQueue seems to hang on completion for a few seconds

I have a custom view controller that implements the from UITableViewDataSource and UITableViewDelegate protocols. When I load data for my table (in my viewDidLoad method), I create a NSOperationQueue and a NSInvocationOperation and add it to the queue. I throw up an activity indicator, and viewDidLoad exits. The method used for the op...

Is there a graphical error in iPhone SDK 4 Cocoa Touch toolbars?

Add a toolbar to a view in Interface Builder, and then add buttons to the toolbar. Image buttons on a toolbar glow/highlight when they are tapped, to give the user a response that they touched it. Ever since iPhone SDK 4 however, when tapping buttons in a toolbar, the glow is the correct size, but with every tap the glow gets progressi...

Is there a way to dim the LED light on the iPhone 4?

Is there a method or property that allows you to set the brightness of the LED light on the iPhone 4? ...

Turn NSString into integer

Sorry guys, I'm a noob. I know that some languages support type casting, but when I tried to do that here it failed, miserably. I've got an UITextField with number only pad, so I'm only getting numbers, and I need the output from that in my int, diff. Here's what I tried: NSString *outputNumber = [NSString stringWithFormat:@"%d", [textB...

iphone iOS4 access to exchange public folders / calendars

"I'm trying to get iPhone to play nice with all my work calendars that sync over exchange. My personal calendar works great with adding/remove events. However, my department calendar which is in a public folder does not show up at all. Anyone know a work around?" When last asked a year ago the answer to this question was that it wasn't ...

Weird error on the console when using iOS4

Hi all, I encounter a strage console error log when I ran my app on an iPod Touch which has the updated iOS4 version but since it is an old device it doesn't support multitasking. Sometimes I see these four lines in the console: Thu Jul 1 15:39:38 iPod-Dev TestApp[1147] : CGContextConcatCTM: invalid context 0x0 Thu Jul 1 15:39:38 iPo...

Picking a HD video from library in iOS4 shows 'compressing video', results in horribly compressed video

Why is it that if I pick a video from the library in my application I'm given this horribly pixelated/compressed video but if I take the video with the camera in my application I'm given a nice video file, this is on the iphone 4. Sample of video taken w/in the app: http://photos.smugmug.com/photos/912709066_Kcc8p-1280.mp4 Sample of vi...

Testing app with 3.1.3 and last xcode

hi! :) i'm testing an app for iphone and iPad with the last xcode version! like written in "xcode 3.2.3 readme" i'm using this configurations: Base SDK is set to iPhone SDK 4.0, iPhone OS Deployment Target is set to iPhone OS 3.1 (beacuse i want that also iphone2G and ipodTouch1G users can use my app) and Targeted Device Family is set to...

Entering background on iOS4 to play audio

The documentation is rather poorly written when talking about playing audio in the background. It gives the impression that all you have to do to continue playing the audio that you are currently playing is to just add a key/value pair to the info.plist file and wallah, it's magic. However, this is not the case. For instance, if I pla...

How can I use drawRect to load an image in a UITableView

I have a grouped UITableView with some large images. However, scrolling performance is quite poor (note: it was excellent before the iOS 4 upgrade, now it's very jittery). I've read that using drawRect instead of adding subviews to the cell could improve performance. First question: Is that true? Second question: If it will increase p...