Recent questions tagged iphone

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iphone - Push Notifications wont work on distribution

Ok now I have a problem with the push notifications. I have set them successfully for the developing part and I was ... try and how to fix this. See Question&Answers more detail:os...

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

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729 views

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iphone - orientation incorrectly reported in viewDidLoad

So I have an app that needs to load a different image as the background image depending on the orientation of ... one rotation it works fine. See Question&Answers more detail:os...

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

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789 views

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iphone - Determining the maximum number of simultaneous touches possible on an iOS device?

Is there a way to find out the maximum number of simultaneous touches on an iOS device (iPhone, iPod Touch, iPad ... call, say) to confirm this. See Question&Answers more detail:os...

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

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858 views

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iphone - Road distance,Actual distance between two places

I want to calculate the driving distance between two locations [the user's specified locations], before user starts ... 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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761 views

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iphone - Adding a combo box or drop-down list to UIView

I need to add a combo box or drop-down list to a UIView. I did not find such an object in the ... scratch programmatically? Please help !!! See Question&Answers more detail:os...

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

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878 views

1 answer

iphone - NSPredicate for range between two dates is not working as expected

I have these two NSDates: NSDateFormatter *df = [[NSDateFormatter alloc] init]; [df setDateFormat:@"MM/dd/yyyy"] ... to the next day? 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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665 views

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iphone - Placing calls to super?

I have asked this before, but the more I look at other code examples the more I see differences in layout. ... viewDidUnload]; } cheers gary. See Question&Answers more detail:os...

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

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784 views

1 answer

iphone - How to make the presentViewController with SLComposeViewController faster?

I am opening the Twitter compose view on my app, but the screen takes too long to be displayed! I started using ... anybody know how to do that? See Question&Answers more detail:os...

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

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803 views

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iphone - I didn't check the Targeted for iPad option when creating a View Controller. How can I fix my UIView to be targeted for iPad devices using XCode 4.2?

I made a mistake when I created one of my UIViewController objects. When I created the files, I forgot to select ... not specified it as such? See Question&Answers more detail:os...

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

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742 views

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iphone - UITableView : detecting click on '-' button in edit mode

On my iphone app, I have a UITableView in edit mode, containing custom UITableViewCell. I would like to detect ... Is that possible ? 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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693 views

1 answer

iphone - NSArray becomes NSCFArray when passed

I have a method that receives many different kinds of objects and decides what to do with them: -(void)performAction: ... with this? Thanks, -k. See Question&Answers more detail:os...

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

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832 views

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iphone - Smoothing a rounded stroke in Core Graphics

I am creating my own UITableViewCells with a gradient background. I have all the logic and drawing worked out, ... thickness across all cells? See Question&Answers more detail:os...

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

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729 views

1 answer

iphone - takepicture() vs UIGetScreenImage()

I'm trying to build a QRCodeReader for a project our research group is working on for the iPhone. After much ... do the same sort of thing? See Question&Answers more detail:os...

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

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648 views

1 answer

iphone - Objective-C / iOS: Converting an array of objects to JSON string

I am currently experimenting with the use of JSON for internet data transfer. I have been successful in ... the right direction. Cheers. See Question&Answers more detail:os...

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

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695 views

1 answer

iphone - Cost of message dispatch in Objective-C

I'm curious to know about the cost of message dispatch in Objective-C in various situations. Particularly I ... pointer to a concrete class? See Question&Answers more detail:os...

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

0 votes

771 views

1 answer

iphone - iOS Push Notifications not working for Distribution

I have tried the Push Notification for my application for development and it's working fine. When I am ... be missing. Thanks and Regards See Question&Answers more detail:os...

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

0 votes

860 views

1 answer

iphone - Connect object in .xib to existing IBAction

I am quite new to iOS Programming. This is my question: I want to connect a new object to an existing IBAction ... a new one? Snapshot in XCode See Question&Answers more detail:os...

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

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899 views

1 answer

iphone - How to use @sum with CoreData

I have Week model that has Day as child objects. There is "days" relation property in Week model to access ... that is possible with CoreData. See Question&Answers more detail:os...

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

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1.2k views

1 answer

iphone - iOS WKWebView Status Bar Padding

I have been endlessly searching for an answer for this that works. I am trying to create a very simple ... immediate concern at this time. See Question&Answers more detail:os...

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

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887 views

1 answer

iphone - Where to find the documentation of the SUBQUERY feature of NSPredicate for Core Data?

Where to find the documentation of the SUBQUERY feature of NSPredicate for Core Data? See Question&Answers more detail:os...

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

0 votes

649 views

1 answer

iphone - how to get rid of heading and trailing white spaces from NSString

My NSString is like this: NSString *myString = ( 24 K CLUB , 3 DOLLAR CAFE , A PEACH ... unrecognized selector sent to instance 0x7062200 See Question&Answers more detail:os...

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

0 votes

877 views

1 answer

iphone - Getting cell tower information in an iOS application?

My question is simple but I haven't found a good answer anywhere. My question is this: Is there a way ... resources on the matter. 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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753 views

1 answer

iphone - arrayWithContentsOfFile can't read plist file

i have a plist with an array that contain 2 strings see image : http://imageshack.us/photo/my-images/263/myplist. ... /array> </array> </plist> See Question&Answers more detail:os...

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

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784 views

1 answer

iphone - Read/write file in Documents directory problem

I am trying to write a very basic text string to my documents directory and work from there to later save other files ... but not on my phone :/ See Question&Answers more detail:os...

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

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718 views

1 answer

iphone - How to Using ASIHTTPRequest to tracking Upload/Download progress

I got some question is using ASIHTTPRequest to tracking Upload/Download progress This is the sample from ASIHTTPRequest ... ? Many thanks ~ See Question&Answers more detail:os...

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

0 votes

796 views

1 answer

iphone - iOS is exit(0) deprecated?

Does anyone know if exit(0) is deprecated in iOS application? I know it is not a good decision to manually terminate ... we use it in the code? See Question&Answers more detail:os...

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

0 votes

567 views

1 answer

iphone - How to implement "Load 25 More" in UITableViewController

I am working on an iphone application. Application loads plenty of records from a webservice into table view ... be grealy appreciated. Thanks See Question&Answers more detail:os...

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

0 votes

614 views

1 answer

iphone - Creating a SecCertificateRef for NSURLConnection Authentication Challenge

I am receiving an authentication challenge from a server my app is trying to connect to, so I have implemented the ... I just doing it wrong? See Question&Answers more detail:os...

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

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