Recent questions tagged iPhone

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iphone - SEL performSelector and arguments

It seems like there should be an easy way to call a selector with some arguments when all you have is a ... parent performSelector:sel:i ]; } See Question&Answers more detail:os...

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

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564 views

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iphone - How will I be able to remove [NSNull Null] objects from NSMutableArray?

I need to remove Null object added by [mutArrSkills addObject:[NSNull null]]; Do I need to iterate? Is there any ... , how will I do that? 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

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iphone - crash on deleteRowsAtIndexPaths

My application crashes when I'm deleting row from table. Here is my sources where the bug is detected and ... an instance of 'NSException' See Question&Answers more detail:os...

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

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476 views

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iphone - How to make a superview intercept button touch events?

Say I have this code: #import <UIKit/UIKit.h> @interface MyView : UIView @end @implementation MyView - ( ... 'm approaching this incorrectly. See Question&Answers more detail:os...

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

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374 views

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iphone - How do I parse an NSString containing XML in Objective-C?

In my iPhone application, I have the following NSString: NSString *myxml=@"<students> <student><name>Raju</name ... XML content of this string? See Question&Answers more detail:os...

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

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557 views

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iphone - GPS coordinates in degrees to calculate distances

On the iPhone, I get the user's location in decimal degrees, for example: latitude 39.470920 and longitude = ... to compute this look like? See Question&Answers more detail:os...

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

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374 views

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iphone - What's the best way to use Obj-C 2.0 Properties with mutable objects, such as NSMutableArray?

I have an Obj-C 2.0 class that has an NSMutableArray property. If I use the following code, then the ... setter that does a -mutableCopy? 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 - How to subclass UIApplication?

The iPhone Reference Libary - UIApplication says I can subclass UIApplication, but if I try this I will get ... somthing in the libary? See Question&Answers more detail:os...

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

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418 views

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iphone - Local notification on application termination

I am working on an application which will not work if terminated. It has some background tasks. I want to show ... great. 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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487 views

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iphone - How to change wallpaper in iPad programmatically?

How to change wallpaper in iPad programmatically? See Question&Answers more detail:os...

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

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461 views

1 answer

iphone - Send image to server as binary data

I want to make an iPhone application to send an image to my server. I want to draw something in iPhone (ex ... make binary data from image, 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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260 views

1 answer

iphone - How do I install this script into PhoneGap for iOS

I don't know any Objective-C, that is why I'm using PhoneGap to create an iOS app. There is a big flaw in PhoneGap ... ]; } } } } } Thank you! See Question&Answers more detail:os...

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

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377 views

1 answer

iphone - Where should I save data & files I want to keep long term, and how do I prevent iCloud from backing them up

I have file - of arbitrary type including Core Data repositories - that I need to keep around and not have iOS ... . Where should I save them? See Question&Answers more detail:os...

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

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419 views

1 answer

iphone - self.delegate = self; what's wrong in doing that?

self.delegate = self; what's wrong in doing that? and what is the correct way of doing it? Thanks, Nir. ... but the keyboard doesn't show 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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695 views

1 answer

iphone - Make scrollbar always visible on UIScrollView?

I need to make a scrollbar always visible on viewDidLoad so that the user can understand that there is content to scroll. ... . How can I do it? See Question&Answers more detail:os...

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

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477 views

1 answer

iphone - Is it possible to NOT dismiss a UIAlertView

The UIAlertviewDelegate protocol has several optional methods including: - (void)alertView:(UIAlertView *)alertView ... view is dismissed. See Question&Answers more detail:os...

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

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390 views

1 answer

iphone - Detect iOS application about to delete?

For my iOS application, what event will be triggered when user a is about to delete the application? See Question&Answers more detail:os...

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

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478 views

1 answer

iphone - How to save recorded video into photo album?

Following code is to save image took from camera into photo album. if ([mediaType isEqualToString:(NSString * ... Recoded video into photoAlbum? See Question&Answers more detail:os...

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

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309 views

1 answer

iphone - problem compiling ffmpeg for iFrameExtractor

I'm trying to compile the ffmpeg by using the make and build files in iFrameExtractor example. firstly i tried to ... to build for iphone 4 . See Question&Answers more detail:os...

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

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306 views

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iphone - Xcode Error Message: "could not inspect application package"

I'm trying to run my app on the device but I'm getting the following error message "Could not inspect application ... ? Thank you for your time. See Question&Answers more detail:os...

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

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343 views

1 answer

iphone - How to display 2 lines of text for subtitle of MKAnnotation and change the image for the button on the right?

I am looking at Apple's MapCallouts example for map annotations and callouts (==bubbles that appear when you ... customPinView; I get 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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360 views

1 answer

iphone - Search NSArray for value matching value

I have an NSArray of objects, which has a particular property called name (type NSString). I have a second ... will be required quite often. See Question&Answers more detail:os...

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

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443 views

1 answer

iphone - merge static libraries into single

How to merge the static libraries into single one? I do have three static libraries libSignatureLibary_armv6.a , ... . @thanks in advance Kiran See Question&Answers more detail:os...

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

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600 views

1 answer

iphone - Prevent automatic popToRootViewController on double-tap of UITabBarController

The default behavior of a UITabBarController is to pop the contained UINavigationController to the root view controller when ... a simpler way? See Question&Answers more detail:os...

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

0 votes

376 views

1 answer

iphone - How can you apply distortions to a UIImage using OpenGL ES?

Is there any way to create effects like dents, pinching, twisting, squashing, etc. on a UIImage using OpenGL ES ... on how 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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316 views

1 answer

iphone - Where Does A UIAlertView Live While Not Dismissed

Does anyone know in whose subview an active UIAlertView is located or how to find the thread in which it is running? See Question&Answers more detail:os...

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

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589 views

1 answer

iphone - Specifying HTTP referer in embedded UIWebView

In my app, I allow the user to open up an external page in an embedded UIWebView. Is it possible for me ... user opens up these external pages. See Question&Answers more detail:os...

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

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538 views

1 answer

iphone - What is an easy way to break an NSArray with 4000+ objects in it into multiple arrays with 30 objects each?

What is an easy way to break an NSArray with 4000 objects in it into multiple arrays with 30 objects each? So ... an efficient 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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