Recent questions tagged iPhone

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iphone - Downloading "mobileconfig" file from an App

My org is creating an app, that will have certain wifi hotspots listed in a mobile config file, so that the ... screen? 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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565 views

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iphone - is it ok to use of a notification to communication back to the main thread of an IOS app? (cf performSelectorOnMainThread)

Is it ok to use of a notification to communication back to the main thread of an IOS app? (cf ... :@"ModelChanged" object:self]; See Question&Answers more detail:os...

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

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478 views

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iphone - Is it possible to alter the letter-spacing/kerning of a font with Cocoa Touch?

I've been scouring the Internet for a while now for information on how one can alter the letter-spacing/ ... this hidden nugget of knowledge. See Question&Answers more detail:os...

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

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431 views

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iphone - How to write a small (socket) server in iOS

I saw this in some official iOS apps, so I know it's possible and permitted. I want to write a small socket ... or knows a good starting point ? See Question&Answers more detail:os...

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

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531 views

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iphone - Deprecated TransactionReceipt

I am using this code for in-app purchases, took it from RaywernderLich's tutorial. // Encode the receiptData for the ... 7.0 How to fix 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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399 views

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iphone - Programmatically changing the selected tab of tabBarController

I have a basic project created in xcode as a "Tab Bar Application", What I would like is to have the application ... to that of the 2nd tab? See Question&Answers more detail:os...

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

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533 views

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iphone - Can we push notification without using APNs?

Is it possible to push notification from my 3rd party server directly to my device in Intranet(Wi-Fi)? I have ... Any idea?? 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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489 views

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iphone - Testing Apple Push Notifications Feedback - no items received

How to test feedback.sandbox.push.apple.com? Everything goes right, but I receive empty list. How to make it ... .com returns just empty set. See Question&Answers more detail:os...

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

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513 views

1 answer

iphone - UIDatePicker in UIActionSheet on iPad

In the iPhone version of my app, I have a UIDatePicker in a UIActionSheet. It appears correctly. I am ... ; datePickerView.bounds = pickerRect; See Question&Answers more detail:os...

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

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714 views

1 answer

iphone - "Thread 6 com.apple.NSURLConnectionLoader: Program received signal: EXC_BAD_ACCESS"

The app crashes about 15 seconds after launching and XCode just breaks at an address and gives me a pop up ... #40 0x98d6b0de in thread_start () See Question&Answers more detail:os...

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

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437 views

1 answer

iphone - UITextField subview of UITableViewCell to become first responder?

I have a core data application which uses a navigation controller to drill down to a detail view and then ... greater flexibility. Many 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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337 views

1 answer

iphone - CoreAudio AudioTimeStamp.mHostTime clock frequency?

I'm running into a bit of a problem with AudioTimeStamps on the iPhone. When I'm running my application in ... the simulator and my device) See Question&Answers more detail:os...

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

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413 views

1 answer

iphone - UINavigationController and autorotation

I have a UIViewController that returns YES in shouldAutorotateToInterfaceOrientation: for UIDeviceOrientationPortrait and NO ... behavior? See Question&Answers more detail:os...

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

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392 views

1 answer

iphone - Redrawing UIScrollView contents after every zoom

I have a UIView inside a UIScrollView. Whenever the UIScrollView zoom changes, I want to redraw the entire UIView at ... the UIView on a zoom? See Question&Answers more detail:os...

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

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333 views

1 answer

iphone - Core Data backed UITableView with indexing

I am trying to implement a Core Data backed UITableView that supports indexing (eg: the characters that appear down ... name of the person. See Question&Answers more detail:os...

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

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532 views

1 answer

iphone privateapi - IOSurface - IOS Private API - Capture screenshot in background

I want to capture a screenshot from a background service. Private API is just fine as I don't need ... (cgImage); CFRelease(destSurf); See Question&Answers more detail:os...

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

0 votes

398 views

1 answer

iphone - YouTube video playback broken on iOS6 (works fine on iOS5)

In my app, I have a button which, when pressed, lets you watch a youtube video (a movie trailer). Within the ... button; } } return button; } See Question&Answers more detail:os...

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

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502 views

1 answer

iphone - Drag and Drop in MobileSafari?

Is it possible to allow users to drag and drop items in mobile safari? Google images on the iPhone does ... around. Anyone have any insights? See Question&Answers more detail:os...

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

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574 views

1 answer

iphone - UICollectionViewCell Shake

I have created a UICollectionView and would like to have all the cells shake like the edit mode of the ... conCatTransform; } completion:nil]; See Question&Answers more detail:os...

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

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617 views

1 answer

iphone - How to detect a swipe-to-delete gesture in a customized UITableviewCell?

I have customized a UITableViewCell and I want to implement "swipe to delete". But I don't want the ... have to use a UIGestureRecognizer? See Question&Answers more detail:os...

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

0 votes

460 views

1 answer

iphone - How to implement alpha gradient on a image?

I want to implement alpha gradient on an image. From 0.5 alfa on top of the image to 0.0 on bottom. Any advice, tutorial, link is welcome. See Question&Answers more detail:os...

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

0 votes

475 views

1 answer

iphone - How to redirect from Mobile Safari to Native iOS app (like Quora)?

On my iPhone, I just noticed that if I do a Google Search (in Mobile Safari) and select a result on quora. ... and/or redirect to the app store? See Question&Answers more detail:os...

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

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378 views

1 answer

iphone - Custom Animation for Pushing a UIViewController

I want to show a custom animation when pushing a view controller: I would like to achieve something like an "expand" ... the view ... am I ? 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

iphone - Images vs. Core Graphics

On iOS devices, in which occasions is it better to draw graphics using Core Graphics than using image files? What ... so in terms of resources? See Question&Answers more detail:os...

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

0 votes

350 views

1 answer

iphone - Removing in app purchases from a new version of the application(iOS)

I have an application that is live on iTunes. The app contains lots of in app purchases(non consummable). I wish ... best way to go about it ? See Question&Answers more detail:os...

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

0 votes

884 views

1 answer

iphone - Generating a PDF using the new printing stuff in iOS 4.2

Historically, my app has generated confirmations as plain HTML and passed that HTML to the normal ... help much appreciated. See Question&Answers more detail:os...

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

0 votes

413 views

1 answer

iphone - Why is my CLLocationmanager delegate not getting called?

I'm not getting any location callbacks on either sim or device. I've got this code being called: - (void) ... real hair-puller for me. Thanks! See Question&Answers more detail:os...

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

0 votes

422 views

1 answer

iphone - Create object from NSString of class name in Objective-C

I was wondering if i could create a object of some class if i have the name of the class in a ... alloc] initWithNibName:className bundle:nil]; See Question&Answers more detail:os...

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

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