Recent questions tagged iphone

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iphone - AdMob crashes with [GADObjectPrivate changeState:]: unrecognized selector

I have installed the AdMob SDK 6.2.0 (Xcode 4.5 (4G182) and I am testing on an iPhone 4S and the ... file that would result in that error? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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314 views

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iphone - Xcode 4.4 error - Timed out waiting for app to launch

yesterday I installed Xcode 4.4. I'm working on a project which needs to run on ios 4.1 upwards, supporting iOS ... to get rid of that error? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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280 views

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iphone - Create a table of contents from a pdf file

I'm using quartz to display pdf content, and I need to create a table of contents to navigate through the ... a title and matching page number. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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345 views

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iphone - How do I initialize a store with default data in a CoreData application?

I'm doing an iPhone application. In this app, I just want to have a database to be used as a looked ... alternatives, please tell me. Thanks. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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284 views

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iphone - How to trim the video using AVFoundation

Iam able to record the video by using AVFoundation or UIImagePickerController. But i am unable to trim the video ... me. Thanks, Siva Krishna. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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243 views

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iphone - how to implement application tests in xcode4?

I'm trying to add some Tests for my application. Following the Document from Apple, I add two testing bundles ... . Any suggestions? Thanks, Tim See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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360 views

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iphone - How to handle duplicate symbol error from 3rd party libraries?

I have two 3rd party libraries that seem to use the same class. That should be fine but I'm getting this ... the source files are not available? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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256 views

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iphone - how to cache a whole web page with images in iOS

I am working on a image-text mixture page on iOS. I know it is possible for me to use UIWebView to achieve ... able to display them? Thank you! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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208 views

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iphone - Best Way to Perform Several Sequential UIView Animations?

I have a series of 8 UIView animations that occur directly after my view is loaded. Right now, I am accomplishing ... this in the wrong way? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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263 views

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iphone - How to play video stream with MPMoviePlayerController in iOS

I am trying to play a video stream from the internet on the iPhone by pressing a button. I used ... setFullscreen:YES animated:YES]; See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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381 views

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iphone - Check if NSURL returns 404

I need to check whether a URL (represented by a NSURL) is available or returns 404. What is the best way to ... if the URL is reachable or not. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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409 views

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iphone - NSFileManager creating folder (Cocoa error 513.)

I'm trying to create a folder inside the /sounds folder of my app. -(void)productPurchased:(UAProduct*) product { ... am I doing wrong? Thanks. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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293 views

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iphone - Xcode project's "Build number"

What is a Build number and what is its use? Is it the same as version number? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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351 views

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iphone - Making a UIImage to a circle form

I have been trying to mask a UIImage into a circle. I'm using now the code that has been popular on ... retImageFixed; Thanks in advance... See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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470 views

1 answer

iphone - How to change keyboard background color in iOS?

I would like to know how to change the keyboard background color programmatically in iOS? The background is ... background (behind letters). See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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417 views

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iphone - NSString: newline escape in plist

I'm writing a property list to be in the resources bundle of my application. An NSString object in the plist ... string in the plist? Thanks. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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413 views

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iphone - iOS - Ping with timeout

I'm using Apple's "Simple Ping" example and it has almost all features that I need, but I ... /#samplecode/SimplePing/Introduction/Intro.html See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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313 views

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iphone - Use NSURLIsExcludedFromBackupKey without crashing on iOS 5.0

The check for availability seems to be working fine but I can't seem to set the NSURLIsExcludedFromBackupKey ... an NSFileManager category. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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235 views

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iphone - Get launch orientation of iPad app

In my iPad app, I need to run some layout code to set the proper layout depending on the orientation. By ... Is there any way around this? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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434 views

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iphone - UITableViewCell, UITextView with dynamic height

I need to make a UITableViewCell that holds alot of text. I know I can add a UITextView to my cell, but each entry will not ... --------------- See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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480 views

1 answer

iphone - UIView vs UIViewController

Ok so i am realllly new to the iphone development and i've gotten pretty far for my knowledge. I just need ... code for touch would be awesome! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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347 views

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iphone - UIImageView Touch Event

I want to call my button click event while touching the uiimageview named as(image1).Imageview placed in uiview( ... uiimageview touch event... See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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730 views

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iphone - Could not find a storyboard named 'MainStoryBoard' in bundle NSBundle

I have started a new app a few days ago and began working with the simulator to test it. I started as an ... point me in the right direction? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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214 views

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iphone - Adding Unit Tests to an already existing project?

When you create an XCode 4 project, it asks you if you want to include unit testing. But how do you ... and Foundation, but no SenTestingKit. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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239 views

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iphone - How to generate unique identifier which should work in all iOS versions?

I want to get the unique identifier which should support all iOS versions..Can any one help me on this ... device or reinstall the application. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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451 views

1 answer

iphone - UIImageWriteToSavedPhotosAlbum save as PNG with transparency?

I'm using UIImageWriteToSavedPhotosAlbum to save a UIImage to the user's photo album. The problem is that the ... a lossy non-transparent JPG. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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341 views

1 answer

iphone - Overlaying a UIImage with a color?

I'm attempting to add a black overlay over some current UIImage's (which are white). I've been trying to use ... isn't supposed to be there. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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432 views

1 answer

iphone - Comparing float and double data types in objective C

When using double or float data type in an iPhone app, I am running into problems with ">=" and "<=" ... . How can I avoid this problem? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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