Recent questions tagged iPhone

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iphone - How to share or post by mail, twitter and facebook from the current application?

I am implementing an application from which I have to share that applications on Facebook, Twitter as well as by mail. ... ? How can I 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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262 views

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iphone - How to post more parameters with image upload code in iOS?

Hi I am uploading image on php server and successfully uploaded with the help of this code - (NSString*)uploadData:( ... guide me what to do! See Question&Answers more detail:os...

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

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318 views

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iphone - How many times do I release an allocated or retained object?

I am making an iPhone game. I want to release all objects that have been allocated or retained. In the dealloc ... ; } 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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502 views

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iphone - How to convert HEX to NSString in Objective-C?

I have a NSString with hex string like "68656C6C6F" which means "hello". Now I want to convert the hex string into ... hello". How to 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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550 views

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iphone - NSInternalInconsistencyException Could not load nib in bundle

I've created an application for child game. It loads 12 different questions for each round. After the 4th round ... none works, please help me. See Question&Answers more detail:os...

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

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451 views

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iphone - subclassing UIWindow while using storyboards

I have same issue as explained in this question: Where can I change the window my app uses from UIWindow to my own ... to my app's main window? See Question&Answers more detail:os...

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

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455 views

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iphone - create uibutton subclass

I tried to subclass UIButton to include an activity indicator, but when i use initWithFrame:(since i'm ... _activityView stopAnimating]; } @end See Question&Answers more detail:os...

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

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504 views

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iphone - Can I select a specific block of text in a UITextField?

I have a UITextField in my iPhone app. I know how to make the text field select all of its text, but how ... as if the user is dragging 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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374 views

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iphone - Obtaining Specific ABSource from ABAddressBook in iOS 4+

Does anyone have an example of how to obtain a specific ABSource from the ABAddressBook in iOS 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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316 views

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iphone - Re-Apply currency formatting to a UITextField on a change event

I'm working with a UITextField that holds a localized currency value. I've seen lots of posts on how to ... would be much appreciated! 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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385 views

1 answer

iphone - Are keys and values in an NSDictionary ordered?

I mean: Is the order of keys and values in an NSDictionary always the same like how they were specified when ... to know the order of keys? See Question&Answers more detail:os...

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

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436 views

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iphone - Trying to read a Xcode Instruments .trace file. What is the file format of a .trace file?

I am writing an automated profiling system, to profile different GPU intensive screens in my App. I have been trying ... using XCode 4.6.1 See Question&Answers more detail:os...

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

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344 views

1 answer

iphone - How get a datetime column in SQLite with Objective C

How do you get a datetime column in SQLite with Objective C? I have a table with 4 fields: pk, datetime, ... what should I use for datetime? See Question&Answers more detail:os...

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

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586 views

1 answer

iphone - Detect Silent mode in iOS5?

I have used this method in the past to detect if the silent switch is enabled: - (BOOL)silenced { #if ... . Hope you can 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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413 views

1 answer

iphone - NSXMLParser Leaking

I have the following code that leaks. Instruments says that it is the rssParser object that is leaking. I " ... .co.uk/images/memoryleak.png See Question&Answers more detail:os...

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

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401 views

1 answer

iphone - Why does UINavigationBar steal touch events?

I have a custom UIButton with UILabel added as subview. Button perform given selector only when I touch it about ... there is no answer 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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667 views

1 answer

iphone - How to figure out the font size of a UILabel when -adjustsFontSizeToFitWidth is set to YES?

When myLabel.adjustsFontSizeToFitWidth = YES, UILabel will adjust the font size automatically in case the text is too ... 's displayed (10). See Question&Answers more detail:os...

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

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542 views

1 answer

iphone - Is there a way of adjusting the screen brightness programmatically?

I have an iPhone app for photographic purposes (kind of a lightbox). This app needs as much brightness as possible ... it back some time later? See Question&Answers more detail:os...

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

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383 views

1 answer

iphone - Finding Intersection of NSMutableArrays

I have three NSMutableArray containing names that are added to the lists according to different criterieas. Here are ... of simply doing 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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444 views

1 answer

iphone - How to change device Volume on iOS - not music volume

I want to change the device volume on iOS (iphone). I know that i can change the volume of music library ... ? just change the DEVICE volume? See Question&Answers more detail:os...

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

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457 views

1 answer

iphone - Change UINavigationBar Height

Can some one tell me how to change the navigation bar height? Here is what i have so far: CGFloat ... .frame.size.width = navBarHeight; See Question&Answers more detail:os...

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

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741 views

1 answer

iphone - IOS 9 Error Domain=kCLErrorDomain Code=0 "(null)"

Code below should get current location. But above error is generated. Function didUpdateLocations never gets called. ... got location ) } See Question&Answers more detail:os...

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

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543 views

1 answer

iphone - Get size of a UIImage (bytes length) not height and width

I'm trying to get the length of a UIImage. Not the width or height of the image, but the size of the data. See Question&Answers more detail:os...

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

0 votes

551 views

1 answer

iphone - Play alert sound (same as default message ringtone)

Is it possible to play some default sounds, such as when an incoming SMS/push is received? If iOS SDK does ... can I download the same sounds? 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 - iOS: Movement Precision in 3D Space

From what I understand, GPS has limited accuracy. Is it possible to get a more precise location for a person ... even be possible. Thanks! Derek 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 - How to get UIImage from EAGLView?

I am trying to get a UIImage from what is displayed in my EAGLView. Any suggestions 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)

0 votes

704 views

1 answer

iphone - Drawing rotated text with NSString drawInRect

I found this answer on how to draw rotated text with NSString drawInRect:, but I'm not sure how it works ... with nothing. Any thoughts? 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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396 views

1 answer

iphone - iOS: Change Device Volume

Is there a way to change the volume of the device? I've seen several apps do it. I have a desktop ... do this without Apple getting angry? See Question&Answers more detail:os...

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

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