Recent questions tagged iPhone

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iphone - Push Notification ON or OFF Checking in iOS

I want to check "Push Notification option" in iOS device, any time if the application is running (or ON from ... gives me no "Alert Message". See Question&Answers more detail:os...

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

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407 views

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iphone - GSRegisterPurpleNamedPort SIGABRT in UIApplicationMain Before App Delegate Gets to Run Any Code

We recently put an update out for one of our apps and many users told us that they could no longer run ... this problem only occur for updates? See Question&Answers more detail:os...

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

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362 views

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iphone - How to format Facebook/Twitter dates (from the JSON feed) in Objective-C

For my iPhone application... I am looking for a way to format the Facebook created_time JSON property value. " ... into the format i desire? See Question&Answers more detail:os...

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

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526 views

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iphone - CALayer - Shadow causes a performance hit?

So I am doing some custom animations on my navigationcontroller and the way it pushes and pops the viewControllers. ... and it's still slow See Question&Answers more detail:os...

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

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493 views

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iphone - iOS 4.2+ webfont (ttf) 's bold font-weight rendering bug

This one is quite specify: specify ttf font rendering font-weight:bold incorrectly on iOS mobile safari, open demo ... , not only media query) See Question&Answers more detail:os...

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

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525 views

1 answer

iphone - Getting Index of an Object from NSArray?

i am trying to get index of an array through indexOfObject method as follows but when i try to log the value to ... am i possibly 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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381 views

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iphone - C/C++/Obj-C Real-time algorithm to ascertain Note (not Pitch) from Vocal Input

I want to detect not the pitch, but the pitch class of a sung note. So, whether it is C4 or C5 ... Using the Apple FFT and Accelerate 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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660 views

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iphone - UILabel sizeToFit and constraints

Is there any simple way which can help me to change position of dependent views dynamically using their content size? I ... which I don't know? See Question&Answers more detail:os...

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

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334 views

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iphone - How can i give app store link in my apps before approving another apps

I have two version of apps with lite and paid. I have another apps also but no one is approved yet. I ... Please anyone have idea?. 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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380 views

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iphone - How to fade out the status bar while not hiding it

iOS Developers will surely knows about the issue about status bar and the famous "slide/hamburger/drawer". The ... the view is not stretched. See Question&Answers more detail:os...

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

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504 views

1 answer

iphone - Custom Fonts in Xcode 5

How would you add a custom font in Xcode 5 and how would you change every label in the project to that ... can only do this programmatically? See Question&Answers more detail:os...

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

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485 views

1 answer

iphone - UIWebView EXC_BAD_ACCESS crash

I'm experiencing crashes of an app that uses UIWebView. Usually it's when page is not fully loaded and ... more info in this situation. See Question&Answers more detail:os...

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

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356 views

1 answer

iphone - How to check In App Purchase Auto Renewable Subscription is valid

I'm looking to implement the new Auto Renewable subscriptions using In App purchase but I am unsure how or ... the subscription is still valid? See Question&Answers more detail:os...

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

0 votes

494 views

1 answer

iphone - After rotating a CALayer using CABasicAnimation the layer jumps back to it's unrotated position

I am trying to create a falling coin. The coin image is a CALayer with 2 CABasicAnimations on it - a ... anim forKey: @"animateFalling"]; See Question&Answers more detail:os...

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

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397 views

1 answer

iphone - Use of background/foreground methods in AppDelegate

I'm planning to implement multi-task in my app. I can see many methods here to do that in the ... implement things into those methods ? See Question&Answers more detail:os...

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

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579 views

1 answer

iphone - Operation Queue vs Dispatch Queue for iOS Application

What are the differences between Operation Queue and Dispatch Queue? Under what circumstances will it be more appropriate to use each? See Question&Answers more detail:os...

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

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313 views

1 answer

iphone - How can I use iCloud to synchronize a .zip file between my apps?

Is it possible to upload a .zip file to iCloud, and then have it be synchronized across all of a user's ... also mention max. file size allowed. See Question&Answers more detail:os...

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

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305 views

1 answer

iphone - Need content in UIWebView to display quickly

Part of my app caches web pages for offline viewing. To do that, I am saving the HTML fetched from a site and ... , and am running out of ideas. 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

1 answer

iphone - Three slightly different Apps from one code base

Hy there I would like to have three apps depending, which are based on the same code: MyAppDevelopment (Builds ... be defined per-target... See Question&Answers more detail:os...

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

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419 views

1 answer

iphone - UISlider and UIScrollView

I have a UISlider as part of a view that is loaded into a UIScrollView with paging enabled. I've noticed an ... 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)

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363 views

1 answer

iphone - Need a basic server backend for iOS app

I'm currently developing an iOS app and have reached the point where I need to implement a server backend in ... server for the most part? See Question&Answers more detail:os...

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

0 votes

324 views

1 answer

iphone - Best practice to send a lot of data in background on iOS4 device?

I have an app that needs to send data (using POST) to a server. This function has to be on one of ... /best practices how to implement 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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422 views

1 answer

iphone - Multiple UIBarButtonItems in UINavigationBar

How to Create multiple bar button in navigation bar? See Question&Answers more detail:os...

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

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477 views

1 answer

iphone - Antialiasing edges of UIView after transformation using CALayer's transform

I have a UIView object that rotates using CALayer's transform: // Create uiview object. UIImageView *block = [[ ... How can it be done? See Question&Answers more detail:os...

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

0 votes

325 views

1 answer

iphone - Core Data: UITableView with multiple NSFetchedResultControllers

What I want to do is pretty simple. In my UITableViewController, I want to load data from multiple ... demonstrates doing this? Thanks See Question&Answers more detail:os...

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

0 votes

280 views

1 answer

iphone - iOS 7 Safari: OS locks up for 4 seconds when clicking/focusing on a HTML input

UPDATE: The issue seems to stem from having many select elements on a page. How random is that? So here's ... have any ideas? Thanks a bunch! See Question&Answers more detail:os...

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

0 votes

303 views

1 answer

iphone - Unable to profile app on device with iOS 9.0.1 using Xcode 7, 7.0.1 or 7.1 beta

I have been trying unsuccessfully to profile my device (via Instruments) using the latest version of Xcode 7.0.1 (7A1001 ... : Xcode 7.1 beta 2: See Question&Answers more detail:os...

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

0 votes

448 views

1 answer

iphone - Why am I getting this "libxml/tree.h file not found" error?

I just installed Xcode version 4.3.1 and I get this error: libxml / tree.h file not found I have also ... also put Other Linker Flag with lxml2 See Question&Answers more detail:os...

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

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