ios7

问题 Apple has provided KeyChainItemWrapper class in their GenericKeyChain sample code. There is an ARC'ed solution here on SO, which I am trying to follow: wrapper to store in the KeyChain on iOS. The usage of the wrapper is like this: KeychainItemWrapper *keychain = [[KeychainItemWrapper alloc] initWithIdentifier:@"F11-email-auth" accessGroup:nil]; [keychain setObject:[emailTextfield text] forKey:(__bridge id)(kSecMatchEmailAddressIfPresent)]; [keychain setObject:[passwordTextfield text] forKey:

问题 The iOS7 Facebook App has a right side menu that can be shown by swiping right to left or clicking on the upper right button. When this menu is opened the there is a color transition in the entire status bar from blue to black and vice-versa when closed. This image shows both status bar side-to-side This looks like a very good solution for iOS Apps with side menus. Any ideas or ways about how to accomplish this? I am currently using JASidePanels. Thanks! 回答1: I've been trying to accomplish

问题 Currently, I am trying to set the next/previous buttons on my keyboard toolbar to the new, sleek iOS 7 back button/forward buttons that get put in navigation controllers to go back. Here is what I am trying. How can I use the system bar button item instead of the boring static text? [self setToolbar:[[UIToolbar alloc] initWithFrame:self.frame]]; [self.toolbar setBarStyle:UIBarStyleDefault]; [self.toolbar setAutoresizingMask:(UIViewAutoresizingFlexibleLeftMargin |

问题 This method is deprecated in iOS 7.0: drawAtPoint:forWidth:withFont:fontSize:lineBreakMode:baselineAdjustment: Now use drawInRect:withAttributes: instead. I can't find the attributeName of fontSize and baselineAdjustment. Edit Thanks @Puneet answer. Actually, I mean if there doesn't have these key, how to implement this method in iOS 7? Like below method: + (CGSize)drawWithString:(NSString *)string atPoint:(CGPoint)point forWidth:(CGFloat)width withFont:(UIFont *)font fontSize:(CGFloat

问题 With the new iOS7 UIView tint color it becomes pretty easy to theme an entire app quickly. It even changes the color of the text caret when editing UITextFields. However, the keyboard's bottom right 'dismiss' button (can be Done, Search, etc) is always blue. Is there any way to change this? It would look really nice if it matched the tint color of the rest of the app. 回答1: With a little hack maybe you can achieve the effect you are looking for. But it might not be able to pass the app review.

问题 I am having difficulties getting this to work for when the app is not running. I have locationManager:didRangeBeacons:inRegion: implemented and it is called when the app is running in the foreground or background, however it doesn't seem to do anything when I quit the app and lock the screen. The location services icon goes away and I never know that I entered a beacon range. Should the LocalNotification still work? I have Location updates and Uses Bluetooth LE accessories selected in

问题 I'm trying to test my core data scheme. However, it seems I am unable to create the context because it says No visible @interface for 'MyAppDelegate' declares the selector 'managedObjectContext' . In online tutorials this method seems to be auto-generated when we create the app. However, in my case it doesn't exist. This is MyAppDelegate: Header #import <UIKit/UIKit.h> @interface MyAppDelegate : UIResponder <UIApplicationDelegate> @property (strong, nonatomic) UIWindow *window; @end .m file

问题 Hi i am trying to add a view controller as a child view . and later remove this view controller form parent view.I am using following code for this purpose. self.loginView = [self.storyboard instantiateViewControllerWithIdentifier:@"LOGIN"]; [self.view addSubview:self.loginView.view]; This code works fine for iOS8 but in iOS7 this code is not working it shows the half of the screen.On half part login is shown. What could be the solution for this?? 回答1: Add a custom UIView object in your main

问题 I'm getting the build error Undefined symbols for architecture i386 on my Mac when building a Cordova application. I'm using Cordova version 3.4 and Xcode 5.0.2. Here is the snapshot of my project's Xcode properties Build Settings -> Architectures Undefined symbols for architecture i386: "_AudioServicesAddSystemSoundCompletion", referenced from: _playBeep in CDVNotification.o "_AudioServicesCreateSystemSoundID", referenced from: _playBeep in CDVNotification.o "

问题 My app is using internet access, and I want to know if there were used control center. If was used, I want to do some action, like start to update. I am stuck at this question. There are different guides, about "check if app is in background" or "check if wifi status changed", but no information about this. Any advices? 回答1: You can't do it. The most you can know is that your app was deactivated and then activated again, but you have no way of finding out why. It could be because of the