ios9

来源： https://stackoverflow.com/questions/32667090/how-to-display-avpictureinpicturecontroller

问题 I use NSFileManager to get the current device disk space (total, used, and free) like so... let systemAttributes = try? NSFileManager.defaultManager().attributesOfFileSystemForPath(NSHomeDirectory() as String) let space = (systemAttributes?[NSFileSystemSize] as? NSNumber)?.longLongValue Is there any way to do something similar for a user's iCloud account? I want to be able to present a user's iCloud disk space statistics within an app. 回答1: Capacity iCloud online capacity is determined by

问题 I'm trying to implement a share button in my application and so naturally, I turned to UIActivityViewController . For some reason, any time I press the share button and it pops up, I get the following message in my log: Unable to simultaneously satisfy constraints. Probably at least one of the constraints in the following list is one you don't want. Try this: (1) look at each constraint and try to figure out which you don't expect; (2) find the code that added the unwanted constraint or

问题 I have a textfield where i need the user to select an emoji to proceed. How do i trigger the emoji keyboard by default? I know there is a way to get all keyboards but i am not sure how to select one by default. NSArray *array = [[NSUserDefaults standardUserDefaults] objectForKey:@"AppleKeyboards"]; NSLog(@"Keyboards: %@", array); The output of all the installed international keyboards looks as follows: Keyboards: ( "en_US@hw=US;sw=QWERTY", "zh_Hant-HWR@sw=HWR", "emoji@sw=Emoji" ) I am

问题 I want to develop application same as UBER in which I need to show available taxis in the selected region and update as the taxis are hired, available, unavailable. Kind of auto refresh. Calling the web service in the background after regular time interval is not a good option. Can any one suggest me better and fast way to achieve this. Thanks 回答1: Push Use sockets when the app is running. This will give you immediate updates. Use Push notifications when the app is not running (use

问题 I want to develop application same as UBER in which I need to show available taxis in the selected region and update as the taxis are hired, available, unavailable. Kind of auto refresh. Calling the web service in the background after regular time interval is not a good option. Can any one suggest me better and fast way to achieve this. Thanks 回答1: Push Use sockets when the app is running. This will give you immediate updates. Use Push notifications when the app is not running (use

问题 I want to develop application same as UBER in which I need to show available taxis in the selected region and update as the taxis are hired, available, unavailable. Kind of auto refresh. Calling the web service in the background after regular time interval is not a good option. Can any one suggest me better and fast way to achieve this. Thanks 回答1: Push Use sockets when the app is running. This will give you immediate updates. Use Push notifications when the app is not running (use

问题 I'm using command line xcodebuild tool to export ad-hoc distribution ipa file out of my archive like this: xcodebuild -exportArchive -archivePath /path/Archive.xcarchive -exportPath /path -exportOptionsPlist /path/options.plist However, this command fails with error exportArchive: exportOptionsPlist error for key 'method': expected one of {}, but found ad-hoc No mater what 'method' I provide in my export options plist, it always fails with this error. It also fails if I remove the 'method'

问题 I'm using command line xcodebuild tool to export ad-hoc distribution ipa file out of my archive like this: xcodebuild -exportArchive -archivePath /path/Archive.xcarchive -exportPath /path -exportOptionsPlist /path/options.plist However, this command fails with error exportArchive: exportOptionsPlist error for key 'method': expected one of {}, but found ad-hoc No mater what 'method' I provide in my export options plist, it always fails with this error. It also fails if I remove the 'method'

问题 I have an app which uses SlideMenuControllerSwift. I've modified some code to see how to present different panels, then rolled back my changes. When running the project I get SIGABRT fatal error: call of deleted method in console when SlideMenuControllerSwift is initializing. No other error messages are given. The project's source control appears to be in exactly the same state as before changes. I did a "clean" Reinstalled pods. Deleted pods directory and made a clean install Deleted app