Recent questions tagged iPhone

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iphone - XCode Compiler Error: ld: library not found for -loauth

I'm trying to use the Twitter libraries and after adding liboauth.a and adding oauthconsumeriphonelib to my header ... could be causing 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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iphone - Actual frequency of device motion updates lower than expected, but scales up with setting

I am porting an app that I originally wrote using the accelerometer for IOS 3, to incorporate the new ... the Core Motion framework. See Question&Answers more detail:os...

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

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480 views

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iphone - Is it a bad practice to use your AppDelegate as your Singleton?

I'm sometimes using a Singleton (to store data that is used by several different classes) in my projects and I'm ... practice and if so, why? See Question&Answers more detail:os...

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

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580 views

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iphone - iOS: camera orientation

I want to capture an image with the camera using AVCaptureSession. It works ok, I start the camera and I can ... reason of this error? 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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421 views

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iphone - Get latitude and longitude based on Address using Geocoder class in iOS

I got the current location based on the Longitude and Latitude values and then I also got multiple places on ... something. Thanks in Advance. See Question&Answers more detail:os...

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

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637 views

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iphone - How to Perform Segue With Delay

In my storyboard, I have a view as a splash screen. In this view, I already have a button like "Open ... make it delay? Thanks in advance. See Question&Answers more detail:os...

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

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445 views

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iphone - iOS Core Bluetooth Not asking for Pair

In My recent project, I need to communicate a Hardware (Bluetooth Low energy).I have implement all the ... didDeviceDisconnected]; } @end ` See Question&Answers more detail:os...

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

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446 views

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iphone - -temp-caseinsensitive-rename in Bundle Identifier

I've created app named myap. Along with this app created Bundle Identifier in AppID com.mydomain.myapp and ... its bundle on right track? See Question&Answers more detail:os...

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

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iphone - Setting the editing style on a UITableViewCell

I'm trying to set the editing style property of a UITableViewCell in a Cocoa Touch (iPhone) app. For an ... of Apple gotten this to work? See Question&Answers more detail:os...

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

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595 views

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iphone - UIGestureRecognizers vs touchesBegan/touchesMoved/touchesEnded (accuracy)

I was printing the list of points I get using this two methods of touch tracking. The gesture recognisers are ... this two procedures? 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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482 views

1 answer

iphone - iOS: How to get owners email address?

In iOS, how can I read the owners email adresses that are stored in the iPhone? In my app, I'd like to let ... what I'd like to achieve. 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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631 views

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iphone - How to stretch a UIImageView without stretching the center?

I want to stretch the left and right sides of the picture shown above, and keep the middle arrow unstretched. How can 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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762 views

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iphone - bringSubviewToFront problem?

HI, I have Parentview-->Multiple childviews. when i use [self bringSubviewToFront:childview] in parentview, it works ... work?any help please? See Question&Answers more detail:os...

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

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519 views

1 answer

iphone - Presenting modal view occasionally hides the navigation bar

I've come across this twice now. Sometimes using the following line of code: [self.navigationController ... I doing something silly? See Question&Answers more detail:os...

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

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601 views

1 answer

iphone - Pop to root view when tab is selected

I've been having some trouble with something I thought might be easy. I have a table in my root view ... controller will pop to root? 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

iphone - iOS - UICollectionView spacing still there when set to 0 - How to set with no spacing between cells

I have a simple UICollectionView which I have set with 0 spacing in InterfaceBuilder but when I populate the collection ... ]; return cell; } See Question&Answers more detail:os...

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

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514 views

1 answer

iphone - using completion with animateWithDuration causes exc_bad_access

I am trying to animate 2 UIButtons in a UITableViewCell called addToPlaylist and removeFromPlayList (they animate ... much appreciated. 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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538 views

1 answer

iphone - Sorting an NSArray of NSString

Can someone please show me the code for sorting an NSMutableArray? I have the following NSMutableArray: ... to accomplish? 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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901 views

1 answer

iphone - reload uitableview with new data caused flickering

I added an infinite scrolling feature and realized that whenever I reload the uitableview, the view flickers..I ... [self.tableView reloadData]; See Question&Answers more detail:os...

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

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570 views

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iphone - NSMakeCollectable and ARC doesn't work

I'm trying to convert my old project to ARC. I have a function which creates UUIDs, but apparently this is no ... way which I should now use? See Question&Answers more detail:os...

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

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565 views

1 answer

iphone - how to set border style of a UITextfield

How can I set the border style of a UITextField programatically? I am creating my text field like so: UITextField ... tfText]; [tfText release]; See Question&Answers more detail:os...

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

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584 views

1 answer

iphone - UITableView tap to deselect cell

I have a UITableViewCell that is selected when tapped. During this selected state, if the user taps the cell ... to be a gesture recognizer? See Question&Answers more detail:os...

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

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487 views

1 answer

iphone - xcode 4 debugging shows 'Summary Unavailable' for most objects

Whilst using Xcode 4.0 and trying to debug and see what value is held in what variable - or see what ... Apple stepped in - again. 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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622 views

1 answer

iphone - Objective-C Float Rounding

How might I round a float to the nearest integer in Objective-C: Example: float f = 45.698f; int rounded = ... print "the rounded float is 46" See Question&Answers more detail:os...

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

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510 views

1 answer

iphone - Convert string date format

I have date in string in this formate "Tue, 23 Oct 2012 01:05:00 +0000". Now i want to convert date format ... What is the best way to do 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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685 views

1 answer

iphone - In OpenGL ES, how do I convert screen coordinates to world coordinates?

This is for a 2D game so there are only an x and y axis. The game is in landscape mode on the ... coordinates of where to render a texture. See Question&Answers more detail:os...

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

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540 views

1 answer

iphone - UITableViewCell with a UIButton

I have UITable which contains some UIButtons. I would like a way to use the label. The problem I have is ... need the title for something else. See Question&Answers more detail:os...

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

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803 views

1 answer

iphone - OpenCV IOS real-time template matching

I'd like to create an app (on iPhone) which does this: I have a template image (a logo or any object) and I ... 'd really be happy!!! 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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