Recent questions tagged iphone

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iphone - UITableViewCell: How to prevent blue selection background w/o borking isSelected property?

I have a custom UITableViewCell subclass. I have set the contentView of my cell subclass to a custom ... the blue gradient selection background See Question&Answers more detail:os...

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

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346 views

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iphone - Custom UISwitch & App Store approval

After doing some reading, I've found that you can customize the text and color on a UISwitch control. ... setTextColor:[UIColor yellowColor]]; See Question&Answers more detail:os...

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

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279 views

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iphone - why UIScrollView is leaving space from top in ios 6 and ios 7

I have turned off Autolayout and viewcontroller is embedded in navigation controller. I am using Xcode 5, ... something very simple approach. See Question&Answers more detail:os...

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

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241 views

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iphone - Proper usage of transitionFromViewController:toViewController:duration:options:animations:completion:

I can't seem to find a good example on how to use transitionFromViewController:toViewController:duration:options:animations ... in this one) See Question&Answers more detail:os...

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

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473 views

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iphone - Test if app did become active from a UILocalNotification

Is there a way to know if the application did become active from a local notification? I know there is a way to ... Is there a way to do it? See Question&Answers more detail:os...

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

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428 views

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iphone - Is there a way to instantiate a NSManagedObject without inserting it?

I have a user interface to insert a Transaction. once the user clicks on a plus he gets the screen and i ... saving untill the client choses to. See Question&Answers more detail:os...

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

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323 views

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iphone - What h.264 format loads on android AND IOS?

Theoretically both IOS and ANDROID will play h.264 files, but I can't figure out a setting to encode them ... device that comes down the pike. 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 - How do I make the bottom bar with dots of a UIPageViewController translucent?

I'm in the process of making a tutorial, and I'm trying to emulate the style of Path's tutorial ... setting a UINavigationBar to translucent? See Question&Answers more detail:os...

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

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490 views

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iphone - Removing cell borders from a section of grouped-style UITableView

I have a UITableViewController initialized with the grouped style and having multiple sections. For one of these ... Any pointers? 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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224 views

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iphone - UITableView Core Data reordering

I know this question has been asked before, and I took a look at the answer to this question. However, ... sharing large chunks of code. 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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422 views

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iphone - What's the difference between NSNumber and NSInteger?

What's the difference between NSNumber and NSInteger? Are there more primitives like these that I should know about? Is there one for floats? See Question&Answers more detail:os...

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

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353 views

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iphone - How to set top-left alignment for UILabel for iOS application?

I have added one label in my nib file, then its required to have top-left alignment for that lable. As I ... text proper to Top-Left alignment? See Question&Answers more detail:os...

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

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326 views

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iphone - Is it possible to determine whether ViewController is presented as Modal?

Is it possible to check inside ViewController class that it is presented as modal view controller? See Question&Answers more detail:os...

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

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294 views

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iphone - How to handle app URLs in a UIWebView?

I recently found that my UIWebView was choking on ITMS links. Specifically, from the UIWebView in my app, if I ... do you handle such requests? See Question&Answers more detail:os...

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

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315 views

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iphone - Code Sign error: Provisioning profile can't be found

I have been working the whole day to try to build my app on my device. I get this error when I try to ... problem is? Any help is appreciated. See Question&Answers more detail:os...

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

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679 views

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iphone - UILabel is not auto-shrinking text to fit label size

I have this strange issue, and im dealing with it for more than 8 hours now.. Depending on situation i have ... minimum font size is set to 10 See Question&Answers more detail:os...

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

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333 views

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iphone - QR Code Scanning in ios application

I need to integrate QR-code reader in app and found a tutorial for it. I downloaded Z-bar sdk from this link ... Why the image not get scanned? See Question&Answers more detail:os...

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

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294 views

1 answer

iphone - Delegates Vs. Notifications in iPhoneOS

I am trying to call a method in my root view controller from a child view controller such that when I change ... or just use a notification? See Question&Answers more detail:os...

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

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422 views

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iphone - xcodebuild: simulator or device?

How do I specify to xcodebuild (the command line tool) whether I want to build for the simulator or device? See Question&Answers more detail:os...

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

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392 views

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iphone - How to decrease build times / speed up compile time in Xcode?

What strategies can be used in general to decrease build times for any Xcode project? I'm mostly interested in ... as well would be appreciated! See Question&Answers more detail:os...

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

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370 views

1 answer

iphone - OpenGL ES Render to Texture

I have been having trouble finding straightforward code to render a scene to a texture in OpenGL ES ( ... texture to other primitives? See Question&Answers more detail:os...

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

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241 views

1 answer

iphone - Most efficient way to draw part of an image in iOS

Given an UIImage and a CGRect, what is the most efficient way (in memory and time) to draw the part ... better results (with less flexibility). See Question&Answers more detail:os...

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

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384 views

1 answer

iphone - iOS: Using UIView's 'drawRect:' vs. its layer's delegate 'drawLayer:inContext:'

I have a class which is a subclass of UIView. I am able to draw stuff inside the view either by ... if drawLayer:inContext: is called? 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

1 answer

iphone - NSManagedObjectContext performBlockAndWait: doesn't execute on background thread?

I have an NSManagedObjectContext declared like so: - (NSManagedObjectContext *) backgroundMOC { if (backgroundMOC ! ... than background thread? See Question&Answers more detail:os...

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

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399 views

1 answer

iphone - How do I determine the target architecture of static library (.a) on Mac OS X?

I'm interested in verifying if a given iPhone static library has been built for ARM or Intel. It's more ... post gives an example in Linux. See Question&Answers more detail:os...

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

0 votes

260 views

1 answer

iphone - How to programmatically display version/build number of target in iOS app?

How can I programmatically get the value of the target version, like in the image below? As seen in the ... the people are currently using? See Question&Answers more detail:os...

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

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376 views

1 answer

iphone - Inner Shadow in UILabel

is it possible to create such a UILabel with inner and outer shadow? alt text http://dl.getdropbox.com/u/ ... 07-12%20um%2021.39.56.png 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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310 views

1 answer

iphone - Why is UIBezierPath faster than Core Graphics path?

I was playing around with drawing paths, and I noticed that in at least some cases, UIBezierPath outperforms what ... up my CGPath drawing? See Question&Answers more detail:os...

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

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