xamarin.ios

问题 What is the equivalent of CGImageCreateWithImageInRect iOS method in MonoTouch? I'm trying to convert this Objective-C line in C#: CGImageRef sampleImageRef = CGImageCreateWithImageInRect(self.CGImage, fillRect); Thanks in advance! 回答1: The CoreGrapphics function CGImageCreateWithImageInRect correspond to the WithImageInRect method of CGImage . API signature is: public CGImage WithImageInRect (RectangleF rect) Once translated from ObjectiveC your source code should look like: CGImage

问题 What is the equivalent of CGImageCreateWithImageInRect iOS method in MonoTouch? I'm trying to convert this Objective-C line in C#: CGImageRef sampleImageRef = CGImageCreateWithImageInRect(self.CGImage, fillRect); Thanks in advance! 回答1: The CoreGrapphics function CGImageCreateWithImageInRect correspond to the WithImageInRect method of CGImage . API signature is: public CGImage WithImageInRect (RectangleF rect) Once translated from ObjectiveC your source code should look like: CGImage

问题 How to use a custom font in skiasharp from Xamarin forms. I tried paint.Typeface = SKTypeface.FromFamilyName("CoText_Bd"); and paint.Typeface = SKTypeface.FromFile("CoText_Bd"); But both didn't worked out. Do i need to access the path of the font using dependency service ? 回答1: If you want trully multiplatform solution, put all SkiaSharp/PaintCode drawing Code into .NET standard library, including fonts as embedded resource (Don't forget to set Build action to Embedded resource!). Then you

问题 I want to show Actionsheet with an arrow in my iPad app. I need this arrow to be displayed at a different position (may be based on the object being tapped) 回答1: I've done it before using with Rg.Plugins.Popup. I created a frame and added a triangular image below the frame. https://github.com/rotorgames/Rg.Plugins.Popup 来源： https://stackoverflow.com/questions/58945863/actionsheet-with-arrow-using-xamarin

问题 I'm trying to access the camera and microphone for a webview displayed in a SFSafariViewController. I think I should respond to camera and microphone access requests made by the browser but I can't find a way to do it. On Android we have an override in WebChromeClient to do exactly that: public override void OnPermissionRequest(PermissionRequest request) { request.Grant(new String[] { PermissionRequest.ResourceAudioCapture, PermissionRequest.ResourceVideoCapture }); } Do I have any chance to

问题 I use Xamarin WebView to open a site, site is using responsive design. On Android the site fills the page and work correctly Android Picture . My Problem in IOS it appears as it open in desktop not in mobile mode IOS Picture, after more searched i found WKWebView not use ScaleToFitPage Like UIWebView I try this code but not change anything WKWebView didn't equivalent for UIWebView's scalesPageToFit can anyone help me about that i stuck in that problem from week i didn't find solution till now

问题 I want to show Actionsheet with an arrow in my iPad app. I need this arrow to be displayed at a different position (may be based on the object being tapped) 回答1: I've done it before using with Rg.Plugins.Popup. I created a frame and added a triangular image below the frame. https://github.com/rotorgames/Rg.Plugins.Popup 来源： https://stackoverflow.com/questions/58945863/actionsheet-with-arrow-using-xamarin

问题 I'm trying to use UICollectionView but I can't find any samples that I can take advantage of. I needed the UICollectionView by code (without using swift/storyboard/forms). Could you give me a really simple example? For example 2 lines with 2 columns please? Basic stuff just to try to understand how I can implement it. Thank you 回答1: You can refer to Collection Views in Xamarin.iOS doc to check how to use Collection View with Code .And here I will show a sample code to explain how to implement

问题 I wrote some tests on android and now I'm trying to make it compatible to iOS too. I have some picker : enter image description here I gave the picker automation id and also to the label inside him so I can read it text, in android I succeed but in iOS I can't even see the label. tree repl in iOS : Ios repl tree tree repl in android: android repl tree the xaml code: <scrControls:ScrPickerWithBorder x:Name="SleepStartPicker" Grid.Row="1" Grid.Column="1" Margin="0" ArrowColor="{StaticResource

问题 Recently, I can't publish my new app to App Store due to the following error: ITMS-90809: Deprecated API Usage - New apps that use UIWebView are no longer accepted. Instead, use WKWebView for improved security and reliability. Learn more (https://developer.apple.com/documentation/uikit/uiwebview). Question 1, what is UIWebView and WkWebView? I can't even find a single word "UIWebView" in my project, how Apple knows I'm using it? The pages that I used are all xamarin based and Content Page