Recent questions tagged IPhone

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iphone - iAd error "Ad inventory unavailable"

I'm adding iAd to my app. Now, in simulator, it works well but when I load it on a device (v4.1) the ... for my app it began to work fine. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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522 views

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iphone - Receiving Notifications with App in background mode

I have an app, that will keep track of everything the user do in the iPod app. To do this, I added few ... call the method. Thanks a lot, Abras See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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872 views

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iphone - Cropping image captured by AVCaptureSession

I'm writing an iPhone App which uses AVFoundation to take a photo and crop it. The App is similar to a ... rejected). Thank you in advance See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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484 views

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iphone - How can I update my App in the App Store if the Distribution Provisioning Profile expired?

I want to update an existing App in the App Store, but the profile I used expired (I'm not sure, if it has ... , what to do. Can anyone help? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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538 views

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iphone - Unable to open executable - xcode

I'm getting this error...any idea how to solve it? GenerateDSYMFile /Users/fmota/Library/Developer/Xcode ... -iphonesimulator/PBTest.app/PBTest' See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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552 views

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iphone - Weak references inside a block

I'm using an NSOperationQueue and queuing up NSOperationBlocks. Now, blocks have a strong reference to any instances in ... to do with this. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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559 views

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iphone sdk 3.0 - How to Sort an NSMutableArray of Managed Objects through an object graph

I'm new to Apple's iPhone 3.0 SDK support of Core Data and I'm relatively new to iPhone development. ... of Cowboys by Cowboy.person.lastName? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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794 views

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iphone - NSURLRequest cannot handle HTTP body when method is not POST?

Whenever I set a body on a mutable request with the method set to anything other than POST, the ... connectionWithRequest:req delegate:self]; See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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696 views

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iphone - NSData dataWithContentsOfURL

I have this method for button click (download). The problem is that it is terminating due to an exception: [Session ... ; } What is the problem? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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488 views

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iphone - Programmatically pressing a UITabBar button in Xcode

Sorry for the newbie question. I have a UITabBar in my main window view as well as an array of ... would be greatly appreciated. Dave See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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732 views

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iphone - What is the best way to rotate a CGPoint on a grid?

I want to rotate a CGPoint on the screen depending on the angle and the rotation is anchored on another point. ... efficient way of doing this? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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607 views

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iphone - UIRefreshControl in Landscape

I've got a UIRefreshControl at the top of my table. The screen is in landscape. The trouble is, I can't ... the amount you have to pull down? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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643 views

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iphone - Using vibrate and AVCaptureSession at the same time

I'm trying to vibrate the phone while recording video, but I'm finding that AudioServicesPlaySystemSound( ... while recording video? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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654 views

1 answer

iphone - How can I get a textDidChange (like for a UISearchBar) method for a UITextField?

How can I get a textDidChange method for a UITextField? I need to call a method every time a change is made ... field. Is this possible? Thanks! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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788 views

1 answer

iphone - Frame load interrupted error while loading a word document in UIWebView

I want to load a word document using UIWebView. I used the code provided in http://developer.apple.com/iphone/ ... .app. What am I missing? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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684 views

1 answer

iphone - iOS - Open an app with a URL Scheme from Chrome

I've read many many blogs and examples of how to open an app from an URL scheme (for example, this ... Has anyone encountered this? Thanks! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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548 views

1 answer

iphone - Symbol not found: _CFXMLNodeGetInfoPtr when start Instruments

I am developing a iPhone app and everything works fine so far. I can build and start the app in the simulator. ... somebody can help me out. Thx See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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600 views

1 answer

iphone - custom uitableviewcells in storyboard

I think I got all the steps down but I must be missing something because I can't make a connection from the ... let me. What am I missing? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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680 views

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iphone - XCODE Base SDK Missing

I have a application built on IOS 4.1 but recently I have upgraded my XCODE to 3.2.6 which supports IOS 4.3 ... SDK as 4.1. Please suggest. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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675 views

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iphone - Setting a background image for UIButton

I am a newbie with Objective C. How would I set the background of this button to an image (image is already ... learn about doing it in XCode. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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632 views

1 answer

iphone - How to know the current storyboard name?

I want to know what is the current loaded storyboard,I used the below code but it is still get ... objectForKey:@"UIMainStoryboardFile"]; See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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523 views

1 answer

iphone - What is the syntax for new line in Objective-C?

Can anyone tell me what is the symbol used for new line? In the C language we use ' ' for new line. What do we use in Objective-C? is it same? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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633 views

1 answer

iphone - How do I select a UITableViewCell by default?

I have created a UITableView and would like a specific UITableViewCell to appear selected (blue) when the view is loaded. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

577 views

1 answer

iphone - UIScrollView won't scroll!

In IB I have my UIView. Then I have a sub-UIView with a UIScrollView as a sub view. Then the UIScrollView ... required for scroll views to work? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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703 views

1 answer

iphone - How can I stop the UITableView over scroll at the top and bottom?

I am using a UITableView with UITableViewCells and I want to stop the "over" scroll that you get at the top ... only ever shows just the cells? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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557 views

1 answer

iphone - How do I create a UIViewController programmatically?

I am working in a app where i have data in UITableView. It is like a drill down application. User will click ... if yes how? thanks in advance. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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603 views

1 answer

iphone - How to cancel a sequence of UITouch events?

I have a UIImage view that responds to touch events. I want to cancel the touch sequence, i.e., further ... call to cancel a touch sequence. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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582 views

1 answer

iphone - What is the class NSCFNumber in iOS 4.1?

After successfully acquiring a picture from the iPhone camera on iOS 4.1, you can use the key @" ... . Thanks for your time! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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