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Recent questions tagged iPhone
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iphone - iOS: Device orientation on load
It seems that when my app loads, it does not know its current orientation: UIInterfaceOrientation orientation = [[ ... first load my app? See Question&Answers more detail:os...
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Oct 17, 2021
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Technique[技术]
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iphone
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347
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iphone - steps for creating UIScrollView with Interface Builder
I'm in the midst of trying to use a UIScrollView and there appears to be some fundamental thing that I'm ... of how this should work? See Question&Answers more detail:os...
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Oct 17, 2021
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426
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iphone - Enabling crash logs symbolication in Xcode 4.2
I am using Xcode 4.2 and my crash logs are not getting symbolicated. How to enable this in Xcode 4.2? See Question&Answers more detail:os...
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Oct 17, 2021
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334
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answer
iphone - What are pixels and points in iOS?
from UIImage reference: @property(nonatomic, readonly) CGSize size The dimensions of the image, taking orientation into ... and points in iOS? See Question&Answers more detail:os...
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Oct 17, 2021
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Technique[技术]
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iphone
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503
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iphone - View frame changes between viewWillAppear: and viewDidAppear:
I have discovered a strange behavior in my application, where a connected IBOutlet has its connected view's frame ... What could be happening? See Question&Answers more detail:os...
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Oct 17, 2021
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Technique[技术]
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71.8m
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iphone
0
votes
485
views
1
answer
iphone - iOS: Access app-info.plist variables in code
I am working on a Universal app & would like to access the values stored in app-info.plist file in my code. ... of all values in app-info.plist See Question&Answers more detail:os...
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Oct 17, 2021
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Technique[技术]
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iphone
0
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450
views
1
answer
iphone - CGImage/UIImage lazily loading on UI thread causes stutter
My program displays a horizontal scrolling surface tiled with UIImageViews from left to right. Code runs on ... would be greatly appreciated! See Question&Answers more detail:os...
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Oct 17, 2021
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Technique[技术]
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71.8m
points)
iphone
0
votes
315
views
1
answer
iphone - Keychain group access to share data between my existing applications
I have many iOS applications live on AppStore. Now for next version of apps, I want to keep a piece of ... Appreciate any help in this regard. See Question&Answers more detail:os...
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Oct 17, 2021
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Technique[技术]
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71.8m
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iphone
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425
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1
answer
iphone - How to write exif metadata to an image (not the camera roll, just a UIImage or JPEG)
I am aware of how to save metadata using ALAssets. But, I want to save an image, or upload it ... probably an NSData JPEG representation)? See Question&Answers more detail:os...
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Oct 17, 2021
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Technique[技术]
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iphone
0
votes
375
views
1
answer
iphone - What is -[NSString sizeWithFont:forWidth:lineBreakMode:] good for?
In my question "How do I get -[NSString sizeWithFont:forWidth:lineBreakMode:] to work?", I learned that -[ ... it? (Examples would help.) See Question&Answers more detail:os...
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Oct 17, 2021
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Technique[技术]
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71.8m
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iphone
0
votes
367
views
1
answer
iphone - iOS: Using device modifiers for loading xib files?
You can use a device modifier (i.e., ~ipad) to provide a device-specific key in Info.plist, and to specify a ... listed above) are 4.0 minimum. See Question&Answers more detail:os...
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Oct 17, 2021
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Technique[技术]
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71.8m
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iphone
0
votes
506
views
1
answer
iphone - Light gray background in "bounce area" of a UITableView
Apple's iPhone apps such as Music and Contants use a search bar in a UITableView. When you scroll down so that the ... is there a built in way? See Question&Answers more detail:os...
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Oct 17, 2021
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Technique[技术]
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深蓝
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71.8m
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iphone
0
votes
546
views
1
answer
iphone - How to calculate time in hours between two dates in iOS
How can I calculate the time elapsed in hours between two times (possibly occurring on different days) in iOS? See Question&Answers more detail:os...
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Oct 17, 2021
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Technique[技术]
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深蓝
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71.8m
points)
iphone
0
votes
597
views
1
answer
iphone - How to recognize swipe gesture in UIScrollView
I'm trying to recognize left/right swipe gesture in a UIScrollView. I've tried to create ... in touchesBegan/Ended Thanks See Question&Answers more detail:os...
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Oct 17, 2021
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Technique[技术]
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深蓝
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71.8m
points)
iphone
0
votes
349
views
1
answer
iphone - Using Objective C to read log messages posted to the device console
How can my iOS application read messages from the devices console log. I want to programmatically read through these ... much for any help! See Question&Answers more detail:os...
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Oct 17, 2021
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Technique[技术]
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深蓝
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71.8m
points)
iphone
0
votes
299
views
1
answer
iphone - Last In-First Out Stack with GCD?
I have a UITableView that displays images associated with contacts in each row. In some cases these images are read ... up implementing... :) See Question&Answers more detail:os...
asked
Oct 17, 2021
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Technique[技术]
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深蓝
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71.8m
points)
iphone
0
votes
552
views
1
answer
iphone - How to merge conflicts (file project.pbxproj) in Xcode use svn?
There are two members in our team. We use Xcode's SCM (use SVN) to manger our source code files. We all add ... , how to solve it? Thank you! See Question&Answers more detail:os...
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Oct 17, 2021
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Technique[技术]
by
深蓝
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71.8m
points)
iphone
0
votes
478
views
1
answer
iphone - How can I set the background of UITableView (the tableview style is "Grouped") to use an image?
How can I set the background of UITableView (the tableview style is "Grouped") to use an image? See Question&Answers more detail:os...
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Oct 17, 2021
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Technique[技术]
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深蓝
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71.8m
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iphone
0
votes
438
views
1
answer
iphone - Add UIView Above All Other Views, Including StatusBar
I'm wanting to create a view (UIControl) which blocks all input and shows a UIActivityIndicatorView while ... progress, is processing. See Question&Answers more detail:os...
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Oct 17, 2021
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Technique[技术]
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深蓝
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71.8m
points)
iphone
0
votes
299
views
1
answer
iphone - The entitlements specified...profile. (0xE8008016). Error iOS 4.2
I am getting the 'dreaded' error The entitlements specified in your application's Code Signing Entitlements file do ... me with this problem? See Question&Answers more detail:os...
asked
Oct 17, 2021
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Technique[技术]
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深蓝
(
71.8m
points)
iphone
0
votes
406
views
1
answer
iphone - Preventing a UITabBar from applying a gradient to its icon images
When I make icons for a UITabBar, it applies a gradient to the images. I need to know how to prevent it from having this gradient. See Question&Answers more detail:os...
asked
Oct 17, 2021
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Technique[技术]
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深蓝
(
71.8m
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iphone
0
votes
344
views
1
answer
iphone - iOS 5 does not allow to store downloaded data in Documents directory?
I have made an application for my client by keeping target iOS as 4. But since the application still not ... the accepted answer is correct. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
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深蓝
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71.8m
points)
iphone
0
votes
338
views
1
answer
iphone - Pixel Width of the text in a UILabel
I need to draw a UILabel striked through. Therefore I subclassed UILabel and implemented it as follows: @implementation ... known :) Best, Erik See Question&Answers more detail:os...
asked
Oct 17, 2021
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Technique[技术]
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深蓝
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71.8m
points)
iphone
0
votes
338
views
1
answer
iphone - Access the camera with iOS
It seems obvious that some people have been able to figure out how to access the iPhone camera through the SDK ( ... . How can this be done? See Question&Answers more detail:os...
asked
Oct 17, 2021
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Technique[技术]
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深蓝
(
71.8m
points)
iphone
0
votes
595
views
1
answer
iphone - Access App Identifier Prefix programmatically
How can I access the Bundle Seed ID/Team ID/App Identifier Prefix string programmatically? (These are all the ... hard-coding it if possible. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
iphone
0
votes
307
views
1
answer
iphone - Getting the bounds of an MKMapView
In order to setup a query to an external server I want to get the bounds of the current Map View in an ... based on the parent view coordinates. See Question&Answers more detail:os...
asked
Oct 17, 2021
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Technique[技术]
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深蓝
(
71.8m
points)
iphone
0
votes
440
views
1
answer
iphone - What is objc_setAssociatedObject() and in what cases should it be used?
In a project I have taken on, the original author has opted to use objc_setAssociatedObject() and I'm not ... 's already an instance variable? See Question&Answers more detail:os...
asked
Oct 17, 2021
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Technique[技术]
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深蓝
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71.8m
points)
iphone
0
votes
650
views
1
answer
iphone - Moving UITabBarItem Image down?
Normally on each tab of a UITabBar you have a small image and a title naming the tab. The image is positioned ... of unused space at the bottom. See Question&Answers more detail:os...
asked
Oct 17, 2021
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Technique[技术]
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深蓝
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71.8m
points)
iphone
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