Recent questions tagged iPhone

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iphone - How can I save an image to the camera roll?

I am new to Xcode (using 4.3) and am not sure how to save an image to the device's camera roll. All that ... an image to the user's camera roll? See Question&Answers more detail:os...

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

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434 views

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iphone - Apple gyroscope sample code

I am planning to develop an gyroscope based project like rotating an opengl texture using gyroscope data, is there ... if any sample available.. See Question&Answers more detail:os...

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

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450 views

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iphone - What's the difference between "bundle display name" and "bundle name" in cocoa application's info plist

Here is a good question: Bundle Name, Executable Name, Product Name...anything else? but I just wonder about ... cocoa application's info plist. 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

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iphone - How do I enter RGB values into Interface Builder?

How can I enter RGB or Hex color values for backgrounds in Interface Builder? I can select predefined colors but I ... . Where 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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403 views

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iphone - iOS Keychain Security

we want to use certificates on the iPhone to authenticate for MS Exchange Sync. We are not sure how the security ... has some links about 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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382 views

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iphone - Programmatically change UITextField Keyboard type

Is it possible to programmatically change the keyboard type of a uitextfield so that something like this would be ... : @"Default"]; See Question&Answers more detail:os...

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

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393 views

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iphone - Changing UIImage color

I'm trying to change color of UIImage. My code: -(UIImage *)coloredImage:(UIImage *)firstImage withColor:( ... can I resolve this problem? 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

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iphone - How to search MKMapView with UISearchBar?

I have an application that needs to have a similar search feature like the Apple "Maps" application (included with ... how should it be done. See Question&Answers more detail:os...

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

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493 views

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iphone - UIButton: set image for selected-highlighted state

I set an images for button's states Normal,Highlighted and Selected, but when the button in selected state and I ... png" image doesn't select. See Question&Answers more detail:os...

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

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501 views

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iphone - How to detect that animation has ended on UITableView beginUpdates/endUpdates?

I am inserting/deleting table cell using insertRowsAtIndexPaths/deleteRowsAtIndexPaths wrapped in beginUpdates/endUpdates. ... /endUpdates? See Question&Answers more detail:os...

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

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404 views

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iphone - Removing a view controller from UIPageViewController

It's odd that there's no straightforward way to do this. Consider the following scenario: You have a page view ... what I want to do possible? See Question&Answers more detail:os...

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

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434 views

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iphone - Customize the MKAnnotationView callout

I want to create a custom MKAnnotationView callout as shown in this image. I have tested several solutions but ... am clueless. Please 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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331 views

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iphone - iMessage Style Receding Keyboard in an iOS App

I've been wondering if it is possible to replicate the behavior of Apple's iOS5 keyboard in the ... orta/iMessage-Style-Receding-Keyboard See Question&Answers more detail:os...

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

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271 views

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iphone - How to identify CAAnimation within the animationDidStop delegate?

I had a problem where I had a series of overlapping CATransition / CAAnimation sequences, all of which I needed ... delegate? Thanks, --Batgar See Question&Answers more detail:os...

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

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480 views

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iphone - How to add a right button to a UINavigationController?

I am trying to add a refresh button to the top bar of a navigation controller with no success. Here is the ... anotherButton; } return self; } See Question&Answers more detail:os...

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

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356 views

1 answer

iphone - What are some methods to debug Javascript inside of a UIWebView?

I'm trying to figure out why something with Javascript isn't working inside of a UIWebView. To my knowledge, ... the old-school alert 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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323 views

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iphone - How to Manually Symbolicate iOS Crash to View Crash Logs

Trying to debug app. The trouble is I cannot find this program. symbolicatecrash.sh sudo cp /Developer/Platforms/ ... XCode 3.2.3 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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297 views

1 answer

iphone - iOS KeyChain not retrieving values from background

I am currently storing the username (email) and a salted hash of the email and password in the iOS KeyChain ... become valuable to others 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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377 views

1 answer

iphone - Xcode 4 hangs at "Attaching to (app name)"

I just upgraded to Xcode 4 and for some reason my app won't run in the simulator or iOS device. It was ... as a group the problem went away. 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 - Best way to implement Enums with Core Data

What is the best way to bind Core Data entities to enum values so that I am able to assign a type property to ... best way of going about 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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332 views

1 answer

iphone - Create a folder inside documents folder in iOS apps

I just want to create new folders in the documents folder of my iPhone app. Does anybody know how to do that? Appreciate 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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266 views

1 answer

iphone - iOS WebView remote html with local image files

Similar questions have been asked before, but I could never find a solution. Here is my situation - my ... Any help will be 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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394 views

1 answer

iphone - Drawing Smooth Curves - Methods Needed

How do you smooth a set of points in an iOS drawing app WHILE MOVING? I have tried UIBezierpaths but all I ... [[self bezierPath] CGPath]; } See Question&Answers more detail:os...

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

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311 views

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iphone - How to change the format of date in date picker

In my iPhone app, I need to display date in yyyy/MM/dd format as show in beloow image but in iPhone ... requirement? Any help is 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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370 views

1 answer

iphone - Can I localize a UIDatePicker?

I'm trying to localize a UIDatePicker. Apple's docs say that it should autodetect the current locale, yet the language ... What do I have 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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413 views

1 answer

iphone - How to keep data associated with MKAnnotation from being lost after a callout pops up and user taps disclosure button?

How do I keep data associated with an MKAnnotation object after the user taps the pin, sees a callout, ... to the showPinDetails 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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404 views

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iphone - Windows notepad not supporting newline character ' '

From my iPhone application I'm outputting data from text to a file. When opened with windows notepad, the data is ... mac as well as on windows. See Question&Answers more detail:os...

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

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495 views

1 answer

iphone - How to use prepareForReuse method

I found this method called - (void)prepareForReuse. I read the document but I don't understand how to use ... code to demonstrate my working. See Question&Answers more detail:os...

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

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