Recent questions tagged iPhone

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iphone - Order of UIViewController initialization and loading

I'm fairly new to UI programming on the Mac and iPhone, and I've run across something that somewhat puzzles me. ... way? 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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442 views

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iphone - ios: colorWithPatternImage , stretch image full screen

I have one view , and want set backGroudColor for this view by UIImage. The code as : self.backgroundColor ... .png' streth full myview. See Question&Answers more detail:os...

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

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587 views

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iphone - What's the difference between the "global queue" and the "main queue" in GCD?

Among some other ways, there are these two ways to get queues in GCD: dispatch_get_global_queue( ... a background thread? See Question&Answers more detail:os...

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

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429 views

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iphone - Description of initWithNibName, awakeFromNib and viewDidLoad?

Is there a good overview of initWithNibName, awakeFromNib, and viewDidLoad that lays out the best way to ... viewDidLoad to initialize instead? See Question&Answers more detail:os...

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

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454 views

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iphone - Objective-C "message sent to deallocated instance 0x5633b0"

I appear to have some overzealous releasing going on in my obj-C app - getting error message "-[myobj release]: ... the code to log it? 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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350 views

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iphone - iWebkit vs. JQTouch vs. iUI

I am going to develop a content rich application that ideally should have been an iPhone-app, but since I'm short ... of these three to go for? See Question&Answers more detail:os...

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

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250 views

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iphone - How to code sharing between Android and iOS

I'm moving away from strict Android development and wanting to create iPhone applications. My understanding is that ... app). Thanks guys Chris See Question&Answers more detail:os...

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

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390 views

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iphone - Do I need to add armv6 support when limiting apps to iOS 4.0+?

At the moment I'm compiling for both armv6 and armv7. I've also set the target iOS version as 4.0. Am I right ... quite a bit smaller if I can. See Question&Answers more detail:os...

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

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362 views

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iphone - Can't resize UIView in IB

Probably something simple, but I can't figure why I cannot resize a UIView in a xib in Interface Builder. I created ... the sdk to 3. 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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302 views

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iphone - Xcode Debugger: view value of variable

My code in a UITableViewController: delegate.myData = [myData objectAtIndex:indexPath.row]; How can I see the values ... are myData and row? See Question&Answers more detail:os...

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

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311 views

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iphone - iOS app 'The application could not be verified' only on one device

I have two iphone devices( 4s and 5 ) connected to my computer and i am trying to install an application in ... UDIDs of all these 3 devices. See Question&Answers more detail:os...

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

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499 views

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iphone - UIWebView background is set to Clear Color, but it is not transparent

I'm developing an iOS 4 application using iOS SDK latest version and XCode 4.2. I have a XIB with a UIWebView ... 4 device is grey. Any clue? See Question&Answers more detail:os...

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

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317 views

1 answer

iphone - What triggers offscreen rendering, blending and layoutSubviews in iOS?

Exactly what performance-critical things should I have an eye out for? I want a list with as many examples as ... Or a list of best practices. See Question&Answers more detail:os...

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

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435 views

1 answer

iphone - Finding maximum numeric value in NSArray

I have an NSArray of NSNumbers and want to find the maximum value in the array. Is there any built in ... GM if that makes any difference. See Question&Answers more detail:os...

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

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384 views

1 answer

iphone - Scripts to parse and download iTunes Connect and AppStore data

I'm looking for recommendations of a script or series of scripts that download and parse iTunes Connect sales data and ... just go roll my own? See Question&Answers more detail:os...

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

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264 views

1 answer

iphone - NSNotificationCenter trapping and tracing all NSNotifications

For some better understanding on what happens under the hood , I would love to do a complete trace of ... ? Thanks for any hint. See Question&Answers more detail:os...

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

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328 views

1 answer

iphone - Proper AVAudioRecorder Settings for Recording Voice?

I am adding a voice memo capability using AVAudioRecorder and I need to know the best settings for the recorder for ... that I do not posses.) See Question&Answers more detail:os...

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

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262 views

1 answer

iphone - iOS - Caching and loading images asynchronously

I want an image loading and caching library for iOS that loads images asynchronously, caches images, with a ... Is there something better? See Question&Answers more detail:os...

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

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513 views

1 answer

iphone - Auto Layout (Constraints) Center 2 side by side views in a parent view

I'm trying to figure out how to do this with auto layout (iOS6) and constraints. Basically I have my large ... example I'm trying to create. See Question&Answers more detail:os...

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

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350 views

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iphone - Animate a view zoom-bouncing in?

Is there a way to animate a view so that it zooms up and kinda goes a bit too far and rubberbands back to ... how to do this sort of animation. See Question&Answers more detail:os...

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

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369 views

1 answer

iphone - How to fill a path with gradient in drawRect:?

filling a path with a solid color is easy enough: CGPoint aPoint; for (id pointValue in points) { aPoint = [ ... , covering up my original path. See Question&Answers more detail:os...

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

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410 views

1 answer

iphone - Xcode 4.2 - declaration of '...' will not be visible outside of this function warning

I use Apple Reachability class from Apple Sample code Reachability in Xcode 4.2 and new Apple 3.0 compiler I get ... can ignore it at all. 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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508 views

1 answer

iphone - NSURLRequest setting the HTTP header

I need to set the HTTP header for a request. In the documentation for the NSURLRequest class I didn't find ... header to contain custom data? See Question&Answers more detail:os...

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

0 votes

383 views

1 answer

iphone - What's a reliable way to make an iOS app crash?

I want to test my app's crash reporting out in the field by deliberately having it crash when the user performs ... result in the app crashing. See Question&Answers more detail:os...

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

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291 views

1 answer

iphone - How to upload an iOS app to the app store via command line

As part of the countinues integration process of my iPhone application, I want to create a process that will ... the appstore via command line? See Question&Answers more detail:os...

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

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411 views

1 answer

iphone - AVAudioPlayer fade volume out

I have an AVAudioPlayer playing some audio (duh!) The audio is initiated when the user presses a button. When ... then stops. Any ideas? Thanks See Question&Answers more detail:os...

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

0 votes

267 views

1 answer

iphone - Storing In App Purchase receipts in the application Keychain

I've never implemented In App Purchase before, so I used the MKStoreKit wrapper and have a working ... viabilities of this solution. See Question&Answers more detail:os...

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

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628 views

1 answer

iphone - What's the difference between Quartz Core, Core Graphics and Quartz 2D?

I wonder if someone can distinguish precisely between these? For my understanding, Core Graphics is just a " ... Core == Core Animation? See Question&Answers more detail:os...

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

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