Recent questions tagged objective

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objective c - iPhone iOS5 CLGeocoder how to geocode a large (200) set of addresses?

I got a large set of about 200 addresses for which I need to know their latitude and longitude. I've created a ... afterDelay:45]; } Thank you! See Question&Answers more detail:os...

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

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450 views

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objective c - CG Gradient runs on simulator, but not on iPhone

I have a code that compile without problems. It runs well on the iPhone simulator, but on my device, I get ... What could be causing this crash? See Question&Answers more detail:os...

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

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594 views

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objective c - WebView load css on the fly

I have the following code which loads and html file into a webview - (void)awakeFromNib{ NSString *resourcesPath = ... link in the html file See Question&Answers more detail:os...

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

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667 views

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objective c - Determine accurate iPhone battery level

I'm trying to get the battery level/state as follows: - (void) viewWillAppear: (BOOL) animated{ [self viewWillAppear ... ]; } } Any ideas? See Question&Answers more detail:os...

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

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485 views

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objective c - Debugging a library with Xcode

I have a more general question on working with libraries on with Xcode when building iPhone apps. I've created a ... that. Thanks a lot -f See Question&Answers more detail:os...

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

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381 views

1 answer

objective c - Height and width on iPhone (/iPad)

This is just a test application, There is only a AppDelegate class to create all I did was create a ... and hopefully provide a solution. See Question&Answers more detail:os...

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

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737 views

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objective c - Example for startMonitoringSignificantLocationChanges

I am new to iPhone programming. I am looking for an example or a demo on how to use ... better way to test 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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439 views

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objective c - Using instance variables with Modern Runtime

I have several years of experience in Obj-c and Cocoa, but am just now getting back into it and the advances ... go forward right now does it? See Question&Answers more detail:os...

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

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366 views

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objective c - What is an efficient way to Merge two iOS Core Data Persistent Stores?

In our app under development we are using Core Data with a sqlite backing store to store our data. The ... -as automatic migration is done? See Question&Answers more detail:os...

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

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667 views

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objective c - Append string with variable

I'm a java guy coming over to Objective-C. In java, to add a variable to a string you'd have to do ... Also interchanged the +s with ,s. See Question&Answers more detail:os...

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

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661 views

1 answer

objective c - How to find caret position in an NSTextView?

I've an NSTextView with with several semi-colon separated strings. I need to find on which of those strings the caret ... . How could I 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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650 views

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objective c - Unicode in button title in XCode

I'm trying to display the greek letter pi (unicode u03C0) on a button as the title. When I try to set the title ... iOS 5.0 XCode version 4.2.1 See Question&Answers more detail:os...

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

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578 views

1 answer

objective c - Changing UIView on orientation change

Hey all. I have a fairly simple question. I am developing a "rich" iPad app, and I have two background ... be something I do on viewDidLoad.. See Question&Answers more detail:os...

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

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383 views

1 answer

objective c - How can my OS X app accept drag-and-drop of picture files from Photos.app?

When dragging pictures from the new Photos.app, no URL is passed in the pasteboard as part of the dragging ... pictures stored in its library. See Question&Answers more detail:os...

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

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420 views

1 answer

objective c - When to use UIKIT_EXTERN vs just extern

I'm guessing I would only use UIKIT_EXTERN if there is a chance of C++ code in my project that may use the ... come I don't see this more? See Question&Answers more detail:os...

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

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1.0k views

1 answer

objective c - iOS Xcode compile error: unable to execute command: Segmentation fault: 11

I have a project which compiled perfectly in the past, but after the last Xcode update (6.3.2) I get a ... me mad. Any help is much appreciated See Question&Answers more detail:os...

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

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922 views

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objective c - NSMutableArray insert object at index

I have an empty mutable array. Is it possible to insert object at index 2 for example, while there's nothing ... something like that. .Regards. See Question&Answers more detail:os...

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

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557 views

1 answer

objective c - Why can't we directly change size or origin of a UIView frame?

It may sound very silly to people who know this but I am quite new to iOS. I wanted to know, why cant we ... we do it for frame or bounds. See Question&Answers more detail:os...

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

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610 views

1 answer

objective c - How to save UIImage to file with NSFileManager?

How I can save UIImage to file with NSFileManager ? Thank, See Question&Answers more detail:os...

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

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755 views

1 answer

objective c - Naming conventions for BOOL Obj-C 2 properties?

I have a readonly BOOL property. What is dominant naming pattern here? Background: for plain old method declarations ... natural or Cocoa-like? See Question&Answers more detail:os...

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

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400 views

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objective c - What is the recommended method of styling an iOS app?

What is the recommended method of styling an iOS app? For example, if there are multiple labels or text views how ... . is there any other way? See Question&Answers more detail:os...

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

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521 views

1 answer

objective c - Determining Midpoint Between 2 Coordinates

I am trying to determine the midpoint between two locations in an MKMapView. I am following the method outlined ... be around 500 miles south. See Question&Answers more detail:os...

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

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496 views

1 answer

objective c - How To Dynamically change the contentSize of UIPopoverController?

I have a UIViewController that contains a UITableView. This UIViewController is being displayed in a ... presented? Appendix: See Question&Answers more detail:os...

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

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537 views

1 answer

objective c - Set text for a textfield in UIWebView

I have a UIWebView and I want to set one of it's text field to certain text. Is that even possible? If so, how can I do that? 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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627 views

1 answer

objective c - iPad keyboard dimensions

I have found the iPhone's keyboard bounds in the apple documentation, but I can't find the iPad's keyboard bounds. Could you please help me? See Question&Answers more detail:os...

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

0 votes

948 views

1 answer

objective c - Get file path by file name from documents directory ios

In my application I download PDF files which gets stored in "Document" directory under different sub folders. Now I ... a tedious way. Thanks. See Question&Answers more detail:os...

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

0 votes

875 views

1 answer

objective c - No visible @interface for

I have gotten this error on several occasions and am unclear as to what causes the error in general. After ... whenever I get this error. See Question&Answers more detail:os...

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

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660 views

1 answer

objective c - iOS 5 : https ( ASIHTTPRequest) stop working

I got an app which use ASIHTTPRequest. I recompiled my app with iOS 5 (sdk : 5.0 / xcode: 4.2 Build 4D199 ... else. any help/idea is welcome ! See Question&Answers more detail:os...

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

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