Recent questions tagged iPhone

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iphone - How can I use applicationDidBecomeActive in UIViewController?

I want to reload data in UIViewController when application become active or become foreground. I know ... :(UIApplication *)application See Question&Answers more detail:os...

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

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288 views

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iphone - NSURLSession and amazon S3 uploads

I have an app which is currently uploading images to amazon S3. I have been trying to switch it from using ... is 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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359 views

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iphone - Resulting lines of UILabel with UILineBreakModeWordWrap

I have a UILabel whose size is calculated with sizeWithFont: method. The line break mode is set to ... the most elegant way? See Question&Answers more detail:os...

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

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436 views

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iphone - Labels aligning in UITableViewCell

I use UITableView with cells created using UITableViewCellStyleSubtitle. Every cell's height is dynamically adjusted ... layoutSubviews) Thanx See Question&Answers more detail:os...

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

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444 views

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iphone - UISearchBar transparent background view

In UISearchBar default a background view should present. How to hide that? I need only the search textview part, in UISearchBar. See Question&Answers more detail:os...

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

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410 views

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iphone - Default UITableViewCellStyleSubtitle font size?

What is the default font size of textLabel and detailTextLabel? See Question&Answers more detail:os...

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

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466 views

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iphone - Stretching an UIImage while preserving the corners

I'm trying to stretch a navigation arrow image while preserving the edges so that the middle stretches and the ... another way of doing 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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310 views

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iphone - iOS app "next" key won't go to the next text field

I have a simple scene (using storyboard in IB) with a Username and Password text box. I've set the keyboard to ... but just can't nail it down. See Question&Answers more detail:os...

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

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435 views

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iphone - What is the strong property attribute

I am using the Xcode beta for developers, and am noticing some subtle differences. Among them is a new attribute ... use it. 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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312 views

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iphone - DETECT the Edge of a Document in iPhoneSDK

I am looking something like attached image, How can I implement this in iPhoneSDK. Can anybody suggest me some open ... in the captured image ? See Question&Answers more detail:os...

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

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277 views

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iphone - How to download In-App hosted content?

I followed http://www.raywenderlich.com/21081/introduction-to-in-app-purchases-in-ios-6-tutorial to set up ... Anybody has a working sample? See Question&Answers more detail:os...

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

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594 views

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iphone - How often is viewDidLoad called?

When the user switches to another program and then back again., the original program's view will be replaced by a new ... works of the user ... See Question&Answers more detail:os...

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

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443 views

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iphone - Possible to pass [self anyFunction] in blocks without __weak object (iOS 5 + ARC)

Is it possible to pass [self anyFunction] in blocks without a __weak object from self? As an example this is ... ? Thank you for your effort. See Question&Answers more detail:os...

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

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347 views

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iphone - How to get locale currency price for in-app purchases in iOS?

I want to find out user's App Store location. It means they are in US, Australia(AUD) store. Following ... price list and currency symbol.. See Question&Answers more detail:os...

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

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297 views

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iphone - ASIHTTPRequest vs AFNetworking framework

I am about to develop an application for iPad and it has enormous amount of background thread network calls. ... creates lots of complications. See Question&Answers more detail:os...

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

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310 views

1 answer

iphone - Adding UISearchBar programmatically to UITableView

I am attempting to add a UISearchBar (with its corresponding search logic) but there is a problem: ... tableView] setTableHeaderView:testbar]; See Question&Answers more detail:os...

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

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393 views

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iphone - Different background colors for the top and bottom of a UITableView

If you look at your Inbox in iPhone OS 3.0's Mail app, you'll see that swiping down displays a grayish ... solution is for this problem? 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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350 views

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iphone - How to solve Xcode 4.1 (LION) GPS error?

My project worked perfectly on simulator+device, but now, after upgrading to lion os and xcode 4.1, I get ... us discover and isolate bugs. See Question&Answers more detail:os...

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

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496 views

1 answer

iphone - What are the correct pixel dimensions for an apple-touch-icon?

I'm not sure what the correct size should be. Many sites seem to repeat that the apple-touch-icon should be ... web sites an icon for iPhone? See Question&Answers more detail:os...

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

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509 views

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iphone - iOS equivalent for Android View.GONE visibility mode

I'm developing an app for iOS and I'm using the Storyboard with AutoLayout ON. One of my view controllers has a ... = 0; b.frame = frameRect; See Question&Answers more detail:os...

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

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382 views

1 answer

iphone - How to add to an NSDictionary

I was using a NSMutableArray and realized that using a dictionary is a lot simpler for what I am trying to ... mutable and a normal dictionary? See Question&Answers more detail:os...

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

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384 views

1 answer

iphone - Extracting images from a PDF

I am having a little query regarding Extracting specifically images ( only images ) from a supplied PDF document in iPhone ... ) / 1000; } } See Question&Answers more detail:os...

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

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329 views

1 answer

iphone - Is there an offline geocoding framework, library, or database for iOS?

Is there an (offline) Geocoding framework, library or database for iOS? A place to get the data from? I need ... or written in C/Objective-C) See Question&Answers more detail:os...

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

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276 views

1 answer

iphone - Properly displaying and dismissing fullscreen MPMoviePlayerController in iOS 3.2 (iPad)

I'm having lots of trouble displaying a fullscreen movie in my iPad app and then allowing the user to dismiss it ... . What am I doing wrong? See Question&Answers more detail:os...

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

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394 views

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iphone - Detecting a Lightweight Core Data Migration

I'm using Core Data's automatic lightweight migration successfully. However, when a particular entity gets created ... when migrations occur. See Question&Answers more detail:os...

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

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290 views

1 answer

iphone - How can I tint a UIImage with gradient?

I searched everywhere but didn't find the solution. I have image 1. How can I programatically tint them with ... (); return gradientImage; } See Question&Answers more detail:os...

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

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364 views

1 answer

iphone - What can cause "invalid binary" with no email followup from iTunes Connect?

I'm trying to submit an update of an existing application on behalf of one of my clients, and I'm ... does help rule out some hypotheses. See Question&Answers more detail:os...

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

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375 views

1 answer

iphone - Localize Asset Catalogs

I know it's a new feature and this may not be possible, but I would like to be able to localize an Asset ... Do you know if that is possible? See Question&Answers more detail:os...

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

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