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Recent questions tagged iphone
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iphone - How can I retrieve a return value from a completion block?
Is it possible to run a completion block on the main thread? For example, I have one method which returns a value ... thread. How can I do this? See Question&Answers more detail:os...
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iphone
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iphone - Push Notifications in Mavericks iOS Simulator
I can't find anything about this, and I have never done anything with push notifications (but I know vaguely how ... could test on my computer. See Question&Answers more detail:os...
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Oct 17, 2021
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iphone - How to cancel UIView block-based animation?
I've searched loads of SO stuff and in Apple's references, but still unable to manage my problem. What ... for letters in animation chain See Question&Answers more detail:os...
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Oct 17, 2021
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528
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iphone - Get RGB value from UIColor presets
I my application I pass RGB color value to server. My app uses UIColor predefined values, like [UIColor grayColor] ... non-RBG colors? Thanks! See Question&Answers more detail:os...
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Oct 17, 2021
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iphone
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359
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iphone - Generate hash from UIImage
I'm trying to compare two UIImages from the file system to see if they are the same. Obviously, I can't ... for comparing to images totally off? See Question&Answers more detail:os...
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Oct 17, 2021
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iphone
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431
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iphone - iOS 6 Facebook posting procedure ends up with "remote_app_id does not match stored id"
This is my third question about posting on Facebook. Although this may be a duplicate of Mac OS X Facebook login ... remote and stored app ids? See Question&Answers more detail:os...
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Oct 17, 2021
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iphone
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260
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answer
iphone - MFMailComposeViewController image orientation
I'm developing a Universal app and I'm coding for iOS6. I'm using the imagePickerController to take a photo and ... its current state." ); } See Question&Answers more detail:os...
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Oct 17, 2021
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71.8m
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iphone
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290
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answer
iphone - Get location name from Latitude & Longitude in iOS
I want to find current location name from latitude and longitude, Here is my code snippet I tried but my log shows null ... .country; } } }]; } See Question&Answers more detail:os...
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Oct 17, 2021
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iphone
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329
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iphone - Is programmatically inverting the colors of an image possible?
I want to take an image and invert the colors 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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71.8m
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iphone
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447
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iphone - How to adjust font size of label to fit the rectangle?
Yeah, there's this cool myLabel.adjustsFontSizeToFitWidth = YES; property. But as soon as the label has two lines or ... another way to do it? See Question&Answers more detail:os...
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Oct 17, 2021
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iphone
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332
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iphone - Simultaneous AVCaptureVideoDataOutput and AVCaptureMovieFileOutput
I need to be able to have AVCaptureVideoDataOutput and AVCaptureMovieFileOutput working at the same time. The below ... (NSError *)error Cheers See Question&Answers more detail:os...
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Oct 17, 2021
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iphone
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592
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answer
iphone - How to stop multiple times method calling of didUpdateLocations() in ios
This my code...... -(void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations { ... t want..... See Question&Answers more detail:os...
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Oct 17, 2021
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71.8m
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iphone
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427
views
1
answer
iphone - Is ARC really supported in iOS 4? The iOS 4.2 SDK is missing ARC-related symbols at linking time
I've read and heard since ARC was first announced that it was a compile-time thing and would be backwards-compatible ... Xcode 4.2 (Build 4C199) 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
295
views
1
answer
iphone - UITableView dequeueReusableCellWithIdentifier Theory
When apple developed the UITableView for the first iPhone they had a problem in performance when scrolling through it ... itself from the queue. 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
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347
views
1
answer
iphone - Programmatically detect if app is being run on device or simulator
I'd like to know whether my app is being run on device or simulator at run time. Is there a way to detect ... -os-31-gamekit-pt-1-woooohooo.html 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
539
views
1
answer
iphone - How to make a modulo operation in objective-c / cocoa touch?
I have two CGFloat values, and want to calculate the modulo result. Or in other words: I want to know what's ... to binary %". Any idea? 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
571
views
1
answer
iphone - iOS - Scale and crop CMSampleBufferRef/CVImageBufferRef
I am using AVFoundation and getting the sample buffer from AVCaptureVideoDataOutput, I can write it directly to ... slows down the performance. 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
462
views
1
answer
iphone - UIView with a Dashed line
What I have: To create this line, I basically have an UIView and I do the following: void setLayerToLineFromAToB( ... you want a dashed one. See Question&Answers more detail:os...
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Oct 17, 2021
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71.8m
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iphone
0
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452
views
1
answer
iphone - Round corners on UITableView
What is the best way to get round corners on an entire UITableView as seen in Stocks and Spotlight? The ... show through through the corners. 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
302
views
1
answer
iphone - How to find UILabel's number of Lines
I displayed the text in UILabel by using wrap method. Now I want to need to find the how many number of ... s number of lines count. Thanks. 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
376
views
1
answer
iphone - NSDateFormatter returning nil in OS 4.0
I had the following code working on on OS 3.x NSString *stringDate = @"2010-06-21T20:06:36+00:00"; ... methods. What did i leave out? 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
(
71.8m
points)
iphone
0
votes
429
views
1
answer
iphone - Can i pop to Specific ViewController?
I am using navigation based application. I push First ViewController to Second ViewController and from Second ViewController ... x animated:NO]; 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
278
views
1
answer
iphone - Keeping object on top of keyboard in the event of becomeFirstResponder or resignFirstResponder?
I currently have a UITextField on top of a keyboard. When you tap it, it should stick on top of the keyboard ... to the top of the keyboard. 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
390
views
1
answer
iphone - pdf file text reading and searching
I want to read text from pdf file and search text into pdf file. here the link that i know. none ... iPhone application Thanks, shyam parmar 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
339
views
1
answer
iphone - Does AFNetworking have backgrounding support?
I'm in the process of investigating AFNetworking as a replacement for ASIHTTPRequest, and notice a complete lack ... for this in AFNetworking? 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
568
views
1
answer
iphone - UITextField with secure entry, always getting cleared before editing
I am having a weird issue in which my UITextField which holds a secure entry is always getting cleared when I ... way to prevent this behaviour? 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
365
views
1
answer
iphone - Can I edit the pixels of the UIImage's property CGImage
UIImage has a read-only property CGImage. I have to read its pixels to a memory block and edit them and ... postProcess are called just once. 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
521
views
1
answer
iphone - How do I use CaptiveNetwork to get the current WiFi Hotspot Name
I need to get the name of the currently connected Wi-Fi hotspot, e.g. "BT OpenZone" I have been told it ... any help would be much appreciated. 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
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iphone
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