xamarin.android

问题 I am trying to setup development environment to integrate Google sign-in on Android using Web Authenticator in Xamarin Essentials. In the Web API project, same AuthController is included described in this article. It is running on https://localhost:44311/api To call the API from emulator, API url is referenced as https://10.0.2.2:43411/api as described in this article. Now, I am able to call the API url using await WebAuthenticator.AuthenticateAsync(apiUrl, callbackUrl) But, when API tries to

问题 I'm playing with the COOL xamarin shell, but I didn't found a way to change icon of the selected tab. <TabBar Route="sections"> <Tab Title="home"> <Tab.Icon> <FontImageSource FontFamily="{StaticResource AppIcons}" Glyph="{x:Static framework:Icons.HomePage}" /> </Tab.Icon> <ShellContent ContentTemplate="{DataTemplate home:HomePage}" Route="home" /> </Tab> The goal is to use Icons.HomePageFilled instead of Icons.HomePage for this tab only when it's selected. Same logic should apply to other

问题 We have an requirement for showing Bing maps view in Xamarin forms app for Android and iOS both. We have done the integration of Google maps for both platforms with the help of https://docs.microsoft.com/en-us/xamarin/xamarin-forms/user-interface/map#Using_Xaml and https://github.com/amay077/Xamarin.Forms.GoogleMaps. I neither found any documentation that Bing maps supported on Android and iOS nor any thing says it did not support. So How can I get documentation to integrate Bing maps in my

问题 Developing a project on Android with Xamarin.Forms.I am trying to create a page with six image buttons to navigate the user through the app. Vertically half page, 3 on right side 3 on the left side. No scroll no other things. When I use absolute layout, only images in the bottom of the screen is working. Other imagebuttons didn't work. If I put only 2 images they work. They were in a grid. I deleted grid to try and nothing is changed. <AbsoluteLayout BackgroundColor="Black" AbsoluteLayout

问题 I need to be able to create a transparent Xamarin.Forms page for Android. How can I do this true a page renderer? Now it has a default background color. [assembly: ExportRenderer(typeof(MyPage), typeof(ClearBackgroundPageRenderer))] namespace MyApp.Droid { public class ClearBackgroundPageRenderer : PageRenderer { protected override void OnElementChanged(ElementChangedEventArgs<Page> e) { base.OnElementChanged(e); SetBackgroundColor(Color.Transparent.ToAndroid()); } } } 回答1: If you just want

问题 How can I realize the orange line above Tab bar on Android and iOS? 回答1: To achieve this effect, you need to create a custom TabbedPageRenderer. On Android: public class EnhancedTabbedPageRenderer : TabbedPageRenderer { private BottomNavigationView _bottomNavigationView; public EnhancedTabbedPageRenderer(Context context) : base(context) { } protected override void OnElementChanged(ElementChangedEventArgs<TabbedPage> e) { base.OnElementChanged(e); if (e.NewElement != null) {

问题 Is there a way to read out all processes, not only the running processes. If I understood Android correctly, only one process is running at a time, and every other process is frozen (background processes ignored) 回答1: You can get all of androids currently running app processes by using the following code snippet: ActivityManager activityManager = (ActivityManager)BaseContext.GetSystemService(Context.ActivityService); ActivityManager.MemoryInfo memoryInfo = new ActivityManager.MemoryInfo();

问题 I'm trying to publish a xamarin.android app. I'm using Visual Studio with Xamarin Android 6, so I followed this. In part 2, it describes how to create a new keystore as shown in the following screenshot (You can see the complete describtion here): I don't get where should I place this command. I looked at that keytool link, but couldn't find any thing. I tried cmd, MSBuild Command Prompt for VS2015 and Developer Command Prompt for VS2015, but all of them showed this error: '$' is not

问题 I'm trying to publish a xamarin.android app. I'm using Visual Studio with Xamarin Android 6, so I followed this. In part 2, it describes how to create a new keystore as shown in the following screenshot (You can see the complete describtion here): I don't get where should I place this command. I looked at that keytool link, but couldn't find any thing. I tried cmd, MSBuild Command Prompt for VS2015 and Developer Command Prompt for VS2015, but all of them showed this error: '$' is not

问题 How i can force the push notification to run ringtone instead of default notification sound is there any way to ovveride the default behaviour for firebase onMessageReceived 回答1: You could set the specific ringtone in firebase notification. When you use API 26 or later, you would use Channel of Notification. Use the SetSound of channel would cover the default notification sound. Set the Ringtone with SetSound method of Channel. channel.SetSound(RingtoneManager.GetDefaultUri(RingtoneType