Recent questions tagged iPhone

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iphone - iOS get Configuration Profiles that are installed

The app I am currently working on requires the use of Configuration Profiles in order to connect to a server to ... Thanks for your help :) See Question&Answers more detail:os...

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

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iphone - NSArray containsObject method

I have a simple question regarding xcode coding but don't know why things are not performing as I think. I have an ... I am wrong? Thanks a lot! See Question&Answers more detail:os...

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

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282 views

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iphone - Get the width of a UIBarButtonItem

I'm trying to get the width of a UIBarButtonItem. This doesn't work: barbuttonitem.customView.frame.size. ... work, either: barbuttonitem.width See Question&Answers more detail:os...

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

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iphone - How to fire uibarbuttonitem click event programmatically

I have created a UIActionSheet UIActionSheet * action = [[UIActionSheet alloc]initWithTitle:@"" delegate:self ... UIActionSheet delegate method See Question&Answers more detail:os...

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

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592 views

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iphone - How to animate the frame of an layer with CABasicAnimation?

I guess I have to convert the CGRect into an object to pass it to fromValue? This is how I try ... addAnimation:frameAnimation forKey:@"MLC"]; See Question&Answers more detail:os...

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

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358 views

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iphone - Why tack a protocol of NSObject to a protocol implementation

I have been seeing some code around that resembles the following: @protocol MyProtocol <NSObject> // write some methods ... what the logic is. See Question&Answers more detail:os...

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

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406 views

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iphone - How do I add images to the iOS Simulator

I have xcode 4.5.1 and want to add photos to the iphone 6.0 simulator but cant find it. I have a folder ... what should I do? Thanks in advance! See Question&Answers more detail:os...

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

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319 views

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iphone - Deactivate UIScrollView decelerating

Is there a way to deactivate the decelerating of a UIScrollView? I want to allow the user to scroll the canvas, ... the user lifted the finger. See Question&Answers more detail:os...

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

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389 views

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iphone - Convert NSArray to NSDictionary

How can I convert an NSArray to an NSDictionary, using an int field of the array's objects as key for the NSDictionary? See Question&Answers more detail:os...

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

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308 views

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iphone - Get total height of webView's content using Javascript

I'm using a UIWebView for displaying content, in the form of an HTML string - not a website, higher ... .singlePost.contentText.frame = rect; See Question&Answers more detail:os...

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

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308 views

1 answer

iphone - Reading MP3 information using objective c

I have mp3 files stored on the iPhone and I my application should to be able to read the ID3 information ... Your thoughts are much 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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381 views

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iphone - Gaussian filter with OpenGL Shaders

I am trying to learn Shaders to implement something in my iPhone app. So far I have understood easy examples like ... a lot of points) ;) See Question&Answers more detail:os...

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

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577 views

1 answer

iphone - How do I create an image overlay and add to MKMapView?

I am trying to learn MapKit and am now trying to add an image as an overlay to the map view. I can't ... them to MKMapKit. Thanks in advance.. See Question&Answers more detail:os...

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

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246 views

1 answer

iphone - NSURLConnection download large file (>40MB)

I need to download large file (i.e. > 40MB) to my application from server, this file will be ZIP or PDF. ... with the code, check the server too See Question&Answers more detail:os...

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

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395 views

1 answer

iphone - Determine coordinates of a UITableViewCell while scrolling

My goal is to have the UITableViewCells fade in/out when they are approaching the bounds of the UITableView and ... Thanks for your time, Joel 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 - Determine MIME Type of NSData Loaded From a File

For various reasons I am intercepting http requests and loading content from files in my app's document directory ... file or NSData content? See Question&Answers more detail:os...

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

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298 views

1 answer

iphone - how to properly use insertRowsAtIndexPaths?

I went through all the examples online and could not figure out how to properly add a cell to a tableview with ... cell. Please help...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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389 views

1 answer

iphone - UIPickerView programmatic example?

How do I programmatically setup up the UIPickerView in a view without using Interface Builder? Also having ... portions of the UIPickerView. See Question&Answers more detail:os...

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

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860 views

1 answer

iphone - How to stop the Observer in NSNotification to called twice?

I have an observer of NSNotification which is called twice. I do not know what to do with it. I ... "SendMessageToServer" object:message]; } See Question&Answers more detail:os...

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

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407 views

1 answer

iphone - How to set the height of table header in UITableView?

I have gone through Apple docs about UITableView class and delegate reference but couldn't find the way to set ... header/footer height? 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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339 views

1 answer

iphone - Convert UIWebview contents to a UIImage when the webview is larger than the screen

Very similar to this question (and also this answer), I'm trying to make an UIImage out from a webview. So far ... Any ideas on how to fix this? See Question&Answers more detail:os...

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

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425 views

1 answer

iphone - How to rotate a Direction Arrow to particular location

In my app I have a latitude-longitude of 1 fix location. Now user with iPhone device can move anywhere and even ... for me. thanx in advance. See Question&Answers more detail:os...

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

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342 views

1 answer

iphone - How to resize UITextView on iOS when a keyboard appears?

There's UITextView inserted into tab in UITabBarController (on the iPhone). Fill UITextView with a lot of lines. Show ... Thanks a lot for help! See Question&Answers more detail:os...

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

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290 views

1 answer

iphone - Xcode 5 deployment target limited only to iOS 7

What should be done for me to have the deployment target lower that 7.0 in my project preferences? Now any new ... 0. That's how it looks: See Question&Answers more detail:os...

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

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272 views

1 answer

iphone - Existing iOS form framework

Hello I am building forms over and over in iPhone and iPad apps: Custom UITableViewCells for labels with input ... your own colors etc.? See Question&Answers more detail:os...

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

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316 views

1 answer

iphone - How to get the displayed image frame from UIImageView?

I modify the UIImageView's contentMode property. So my image's frame is not equal to the frame of UIImageView. ... not the same as UIImageView. See Question&Answers more detail:os...

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

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322 views

1 answer

iphone - How to use a UIButton as a toggle switch

I am using a UIButton of custom type and what I want is use it like a toggle switch with the change of image. ... any good easy way to do this. See Question&Answers more detail:os...

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

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381 views

1 answer

iphone - UIDatePicker, setting maximum and minimum dates based on todays date

If I have a UIDatePicker, and I wish to set the minimum and maximum date range to be between thirty years ago and ... how would I set that up? See Question&Answers more detail:os...

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

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