uiapplication


iOS Background Fetch mode can be used to schedule some operation in the future that doesn't actually fetch remote data?

南楼画角 提交于 2020-01-14 01:56:06
问题 I'm doing an app that requires to reschedule local notification on daily basis. I'm aware about the repeatInterval property, but repetitioon here is like each 2 days etc. I've seen silent notifications, but they can be used only with push notifications and due to some requirements I can't use that approach. Now the app works on the hypothesis that the user will open the app quite enough to reschedule those notifications. This hypothesis is fine and we all agree that will work, but I will be

How to programmatically hide and show status bar in iOS 13?

做~自己de王妃 提交于 2020-01-11 13:23:30
问题 I have made following common method for hiding and showing again status bar. It works fine before iOS 13, but I am getting following crash while I run it for device having iOS 13 or greater. +(void)showStatusBar:(BOOL)show { UIView *statusBar = [[[UIApplication sharedApplication] valueForKey:@"statusBarWindow"] valueForKey:@"statusBar"]; if ([statusBar respondsToSelector:@selector(setBackgroundColor:)]) { [[UIApplication sharedApplication] setStatusBarHidden:!show withAnimation

How implement scheduling event with post a message on fb

五迷三道 提交于 2020-01-05 04:42:10
问题 I am creating an application in which I have add a facility for post message on ur account. Now this facility I am adding an event for scheduling. With help of that user can write a message and post that later or on particular date and time. For this I used a local notification event which is generate on given date by user. But problem is that when notification generate then I have call a function which is used for post message on Facebook. For generate notification I have used this code: -

how to detect idle user in iphone-sdk

坚强是说给别人听的谎言 提交于 2020-01-02 07:16:28
问题 In my Application I want to call Logout Function if user is idle for certain amount of time how to accomplish this answer doesn't work for me iPhone: Detecting user inactivity/idle time since last screen touch if i subclass my app delegate class from UIApplication and implement - (void)sendEvent:(UIEvent *)event It gives me error *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'There can only be one UIApplication instance.' I can't find the other

Finding the rootViewController in iOS

喜欢而已 提交于 2020-01-01 04:37:27
问题 In ShareKit, the code needs to determine where the rootViewController is so it can show a modal view. For some reason, the code is failing in iOS 5: // Try to find the root view controller programmically // Find the top window (that is not an alert view or other window) UIWindow *topWindow = [[UIApplication sharedApplication] keyWindow]; if (topWindow.windowLevel != UIWindowLevelNormal) { NSArray *windows = [[UIApplication sharedApplication] windows]; for(topWindow in windows) { if (topWindow

Finding the rootViewController in iOS

别来无恙 提交于 2020-01-01 04:37:06
问题 In ShareKit, the code needs to determine where the rootViewController is so it can show a modal view. For some reason, the code is failing in iOS 5: // Try to find the root view controller programmically // Find the top window (that is not an alert view or other window) UIWindow *topWindow = [[UIApplication sharedApplication] keyWindow]; if (topWindow.windowLevel != UIWindowLevelNormal) { NSArray *windows = [[UIApplication sharedApplication] windows]; for(topWindow in windows) { if (topWindow

How to disable popup menu items like Select, Select All, Suggest…, Define (on UIWebView)?

风流意气都作罢 提交于 2019-12-31 03:59:34
问题 How to disable popup menu items like Select , Select All , Suggest... , Define (on UIWebView )? I have found the following information on the help but don't understand how to use it: For the editing menu commands, this is the shared UIApplication object. Depending on the context, you can query the sender for information to help you determine whether a command should be enabled. 回答1: Swizzle the following method: #import "NSObject+myCanPerformAction.h" @implementation NSObject

Setting UIApplication statusBarHidden to YES does not work in iOS 7

折月煮酒 提交于 2019-12-31 02:01:10
问题 I've been using [UIApplication sharedApplication].statusBarHidden = YES; to hide the status bar when users enter specific UIViewControllers in iOS 6 and it worked great. In iOS 7 however it still shows a translucent overlay. 回答1: EDITED::: that is new updated answer : Do in plist file "View controller-based status bar appearance" to NO and write code [UIApplication sharedApplication].statusBarHidden = YES; in appdelegate 回答2: What worked for me was setting "Status bar is initially hidden" to

UIApplicationDidEnterBackgroundNotification

百般思念 提交于 2019-12-30 03:16:05
问题 whats the use of UIApplicationDidEnterBackgroundNotification in iPhone app or how we can take benifit from it 回答1: This notification means the user "quit" your app on an iPhone 4 - It happens when a phone call or text message comes in and user accepts the interruption (answers/replies), or when the user has pressed the Home button. I found this link on SO that shows the interaction between all states, and the appropriate notifications: http://www.drobnik.com/touch/2010/07/understanding-ios-4

How to differentiate lock screen and home button (background multitasking) on applicationWillResignActive in the app delegate

牧云@^-^@ 提交于 2019-12-25 07:47:08
问题 I am writing an alarm clock app. Please correct me if I am wrong: On both events (lock & home button in iOS 4.x) the applicationWillResignActive: method is called. When locked my app can keep on running (forever if DeepSleepPreventer.h is used) to check if the alarm should go off. When home is pressed it has to stop working at some time (apart from some basic background calculations). So in this case I have to set a local UILocalNotification to trigger the alarm. So my question: How to

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