2014/10/15 下午 10:13:15
iphone Programming Glossary: remainingGetting user location every n minutes after app goes to background http://stackoverflow.com/questions/10235203/getting-user-location-every-n-minutes-after-app-goes-to-background repeats YES checkUpdates void checkUpdates NSTimer timer UIApplication app UIApplication sharedApplication double remaining app.backgroundTimeRemaining if remaining 580.0 self.locationManager startUpdatingLocation self.locationManager stopUpdatingLocation.. NSTimer timer UIApplication app UIApplication sharedApplication double remaining app.backgroundTimeRemaining if remaining 580.0 self.locationManager startUpdatingLocation self.locationManager stopUpdatingLocation self.locationManager startMonitoringSignificantLocationChanges.. also invalidating the timer void checkUpdates NSTimer timer UIApplication app UIApplication sharedApplication double remaining app.backgroundTimeRemaining if remaining 580.0 remaining 570.0 self.timer invalidate self.timer nil self.locationManager..
UITableView: deleting sections with animation http://stackoverflow.com/questions/1061071/uitableview-deleting-sections-with-animation to determine whether it should remove only this row from a section or delete the entire section if it is the last remaining row in that section void tableView UITableView tableView commitEditingStyle UITableViewCellEditingStyle editingStyle forRowAtIndexPath..
Check if the time and date is between a particular date and time http://stackoverflow.com/questions/10671468/check-if-the-time-and-date-is-between-a-particular-date-and-time 2. If the current time is between the time duration as in between 11.00 am from 11.00 pm I need to calculate the time remaining to the following scenarios a. If the time is 10am i need to calculate the time to the start time which is 11.00am . the.. b. If the time is 11.45AM since the time is greater than the start time which was 11.00am i need to calculate the time remaining to the end time which is 11.00pm . c. If the time is 11.45pm since the time is greater than the end time which is 11.00pm..
iOS 6 apps - how to deal with iPhone 5 screen size? [duplicate] http://stackoverflow.com/questions/12396545/ios-6-apps-how-to-deal-with-iphone-5-screen-size be to re imagine the content so that it can accommodate varying heights. If that's not a possibility then the only remaining option is to have two UIs pre iPhone 5 and iPhone 5 . If that sounds ugly then you could go with the default letterboxed..
http://stackoverflow.com/questions/13579209/two-colors-for-uilabel-text blueColor .CGColor Lets have our string with first 20 letters as orange next 20 letters as green next 20 as red last remaining as blue CFAttributedStringSetAttribute attrString CFRangeMake 0 20 kCTForegroundColorAttributeName _orange CFAttributedStringSetAttribute..
iPad Web App: Detect Virtual Keyboard Using JavaScript in Safari? http://stackoverflow.com/questions/2593139/ipad-web-app-detect-virtual-keyboard-using-javascript-in-safari . Since the keyboard fills up a huge part of the screen it would make sense to change the app's layout to fit the remaining space when the keyboard is shown. However I have found no way to detect when or whether the keyboard is shown. My first..
What is the maximum sandbox size on iPad? http://stackoverflow.com/questions/2953052/what-is-the-maximum-sandbox-size-on-ipad
NSThread vs. NSOperationQueue vs. ??? on the iPhone http://stackoverflow.com/questions/3041837/nsthread-vs-nsoperationqueue-vs-on-the-iphone items at once. NSOperationQueue is smart enough to only create about as many threads as there are cores queuing the remaining operations. With NSThread creating 100 threads to cache 100 images is probably overkill and somewhat inefficient. You may..
How do I export UIImage array as a movie? http://stackoverflow.com/questions/3741323/how-do-i-export-uiimage-array-as-a-movie 因 videoWriter finishWriting You 耱l still have to fill in a lot of blanks but I think that the only really hard remaining part is getting a pixel buffer from a CGImage CVPixelBufferRef newPixelBufferFromCGImage CGImageRef image NSDictionary options..
http://stackoverflow.com/questions/3841642/curve-text-on-existing-circle you could even work out the ratio between the total length of all strings and the whole perimeter. And divide the remaining space equally between the string. Update I made a proof of concept using html5 canvas so view it with a decent browser You..
Change the UITextView Text Direction http://stackoverflow.com/questions/4905500/change-the-uitextview-text-direction interested me. So in a matter of hour I've came up with solution. It is far from perfect but you can use it and fix remaining bugs. This is a simple view controller with text view. You can add text typing it or you can set the value using void setText..
How to show button 'Done' on number pad on iPhone? http://stackoverflow.com/questions/584538/how-to-show-button-done-on-number-pad-on-iphone user finishes entering his numeric information in a textfield how can I make the number pad disappear I may do this by remaining the Text Input Traits default but users have to switch to number pad every time they input their numbers. Are there any..
How do I get a background location update every n minutes in my iOS application? http://stackoverflow.com/questions/6347503/how-do-i-get-a-background-location-update-every-n-minutes-in-my-ios-application works just fine in case n is larger the location manager should be enabled and disabled again before there is no time remaining to avoid the background task being killed. This does work since location is one of the three allowed types of background..
iPhone - in-App purchase consumable correct approach http://stackoverflow.com/questions/6449312/iphone-in-app-purchase-consumable-correct-approach Intro DontLinkElementID_2 Here is some sample code where I store and retrieve the number of paid hints that a user has remaining Storing the consumable hint item count int hintsLeft 100 KeychainItemWrapper wrapper KeychainItemWrapper alloc initWithIdentifier..
What are the advantages and disadvantages of using ARC? [closed] http://stackoverflow.com/questions/7888568/what-are-the-advantages-and-disadvantages-of-using-arc with MRC for some time. Even if ARC has been tested in real world usage it's likely that there are a number issues remaining which show up in complex scenarios which you will want to avoid being the first to know and debug. OS X's Garbage Collection..
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