ipad

问题 Install mobileconfig file through (Installing a configuration profile on iPhone - programmatically) on iPhone Desktop. How to check whether this config file is installed? In iPhone Settings->General->provision file ,I can find the list. 回答1: I came across a the following approach to identify if the mobile config is installed or not,But I have not tested though so far. There is no direct API available to do this.But there is a workaround to achieve this by the means of certificate trust

问题 I have an application in which i am having a table view.when pressing a button on the cell i have to go to another view controller(ie:testviewcontroller) showing what i selected in the previous one.then when pressing one button i need to go to another view controller showing the remaing values.if he select one there then i need to repeat the above process.The problem is from here also i am carrying some values to that testviewcontroller.if i pop back to my view controller how can i carry the

问题 I have an application in which i am having a table view.when pressing a button on the cell i have to go to another view controller(ie:testviewcontroller) showing what i selected in the previous one.then when pressing one button i need to go to another view controller showing the remaing values.if he select one there then i need to repeat the above process.The problem is from here also i am carrying some values to that testviewcontroller.if i pop back to my view controller how can i carry the

问题 I am trying to implement a Textbox that can show fractions with GWT. Therefor I have an Canvas were I can draw what I want and receive KeyEvents and MouseEvents. But on Ipad (Safarie and Chrome) the software keyboard does not show, so I created an Composite and combined the Canvas with a Textbox witch gets the focus after each key or mouse Event on the Canvas. But the softkeyboard does not show up every time so I tried a bit and can see, that the Textbox seems to get the focus (it gets a blue

问题 I have this application that takes an image (under OpenCVWrapper) that is grayscale and turns the brightness of that specific section that's touched by the Apple Pencil into sound. The dark areas don't make any sound, the medium areas make a medium pitch, and the bright areas make a high pitch. But for some reason the code works in some areas of the image flawlessly and in other it's almost reversed. Code Below: //Produce Sound Based on Location of Touch Input @objc func strokeAction(gesture:

问题 I'm developing app which is going to be constantly running in foreground on iPad devices in Kiosk mode. Does auto update work in this case (assuming auto update app is enabled in device settings)? In my opinion NO and I have to manually check i.e once a day and if new version appear in the AppStore. Am I right? 回答1: Yes, you are right. iOS doesn’t allow any updates in Kiosk mode. So, as an admin, if one needs to update the app, you would remove the app lock policy, then push the app update,

问题 Any way to decide which element gets focus first? I tried use the second parameter in the UIAccessibilityPostNotification(UIAccessibilityLayoutChangedNotification, element); but with no success. 回答1: Using the UIAccessibilityPostNotification method is the proper way to get your purpose. There are several types of change notifications but the two most commonly used are : UIAccessibilityLayoutChangedNotification : notifies that a part of the page has changed with 2 possible incoming parameters

问题 I have a web application using angularjs and material-design . I use md-dialog for adding and editing certain records from the database. This is responsive and works as expected on my desktop for all browsers except IE (no great surprise). This is how it is supposed to look. However, if I run the application in safari on a Mac, or any browser on iOS (including chrome), the dialog appears to be missing the contents (has no height). While IE doesn't have exactly the same issue, it does appear

问题 Everything about Google map works fine in different desktop browsers even in smaller screen - initialise, markers, infobubbles etc are working perfectly. But on iPhone/iPad, the InfoBubble doesn't appear when the marker is clicked. After research on Stackoverflow and followed the various solutions: Google Map Infowindow not showing properly Google Maps API v3: InfoWindow not sizing correctly Why does Safari on the iPad not display my marker on an embedded Google Maps page? how can i bind

问题 I have the following code that displays a popover when a button is tapped: struct ContentView: View { @State private var show = false var body: some View { Button("Open") { self.show.toggle() }.popover(isPresented: $show, content: { // NavigationView { ScrollView { ForEach(0...10, id: \.self) {_ in Text("Test popover ...") }.padding() } // } }) } } If I add a NavigationView in popover's content then I get this : Any idea why this happens? It works fine if I set a fixed frame for the content,