xamarin.android

问题 I am making an Android application with Xamarin.Android and MvvmCross. I have a MvxRecyclerView : <MvvmCross.Droid.Support.V7.RecyclerView.MvxRecyclerView android:layout_width="match_parent" android:layout_height="match_parent" android:background="@null" local:MvxItemTemplate="@layout/auto_complete_search_item" local:MvxBind="ItemsSource SearchAutoCompleteItems; ItemClick SearchAutoCompleteItemClick" /> And my auto_complete_search_item.xml : <?xml version="1.0" encoding="utf-8"?>

问题 Context: Our team is trying to use Xamarin.Forms (XF) Embedding to slowly convert our project from using Xamarin.Native to XF, for easier maintenance & implementation of features in the future. The Problem: As you can see in the function parameters on the lines referenced by the links, Xamarin allows you to convert any type of XF Page to a native ViewController in iOS, but it only allows converting a XF ContentPage to a native Fragment in Android. Importance: This difference plays a major

问题 We are getting some stack traces for "background" (on broadcast reciever) ANR's in google play console. But there are all looking something like this: "main" prio=5 tid=1 Native | group="main" sCount=1 dsCount=0 obj=0x7523b718 self=0xec085400 | sysTid=13422 nice=0 cgrp=bg_non_interactive sched=0/0 handle=0xef6bb534 | state=S schedstat=( 0 0 0 ) utm=74 stm=24 core=7 HZ=100 | stack=0xff1ec000-0xff1ee000 stackSize=8MB | held mutexes= #00 pc 0000000000017520 /system/lib/libc.so (syscall+28) #01

问题 I have a TextView bound with Enabled, Clickable and Click. When the activity is loaded, Enabled & Clickable were bound to false value but the TextView cannot be disabled & still be clickable. After changed the bound value to true & then false, the TextView is disabled. I found that the issue was related to binding the Click event. Once Click is bound, the mentioned issue occurs. Without binding the Click event, it works as expected. In the following sample code, the first 2 TextViews are ok.

问题 I'm trying to get my network address with DhcpInfo.Netmask but the net mask I get is 0, even though my device is connected to a wifi network. This is the code I'm using: namespace checks { [Activity(Label = "checks", MainLauncher = true, Icon = "@drawable/icon")] public class MainActivity : Activity { protected override void OnCreate(Bundle bundle) { base.OnCreate(bundle); SetContentView (Resource.Layout.Main); Button dataButton = FindViewById<Button>(Resource.Id.connectionDataButton);

问题 I am developing app on android using xamarin forms. Since few days, I am getting below issue. CurrentDomainOnUnhandledException ---> System.NotSupportedException: Unable to activate instance of type Xamarin.Forms.Platform.Android.Platform+DefaultRenderer from native handle 0xbeb0861c (key_handle 0xb3a225b). ---> System.MissingMethodException: No constructor found for Xamarin.Forms.Platform.Android.Platform+DefaultRenderer::.ctor(System.IntPtr, Android.Runtime.JniHandleOwnership) ---> Java

问题 I Have two pieces of code, one to get adresses from a position & one to get position from adress. GetAddressesForPosition var geoCoder = new Geocoder(); Task.Run(async () => { var possibleAddresses = await geoCoder.GetAddressesForPositionAsync(position); Device.BeginInvokeOnMainThread(() => { var firstAdress = possibleAddresses.FirstOrDefault(); GeolocationAdressEntry.Text = firstAdress; //GeolocationAdressEntry.Text = $@"{firstAdresse.} {firstAdresse.PostalCode} {firstAdresse.Locality}"; });

问题 I have followed below link on how to implement Contextual action bar with Recycler View https://stackoverflow.com/a/45911314/6117355...Can any one tell me how to perform some action like (edit/delete) operations on rows of Recyclerview on based of button actions of Contextual action bar in xamarin Android? 回答1: Can any one tell me how to perform some action like (edit/delete) operations on rows of Recyclerview on based of button actions of Contextual action bar in xamarin Android? Firstly,

问题 I have to use a function in my Xamarin project, which has a DoOperation(Func<object, bool> ConfirmOperation) overload. The object has a property, called string TextToCheck. The function should check this property, and if it meets a certain criteria, it needs to ask the user whether he wants to continue with the operation, or not. The implementation of the Func<object, bool> function that the DoOperation(Func<object, bool> ConfirmOperation) invokes in itself would go something like this in

问题 I have used rg.plugins.popup in my application. I have updated the xamarin forms (version="2.5.0.121934"). Now the outer background is clicked it is not closed. I used to close the popup many ways, but not closed, I tried the below code: this.CloseWhenBackgroundIsClicked = false; protected override bool OnBackgroundClicked() { Navigation.PopPopupAsync(); return false; } OnBackgroundClicked is not calling. How to fix this issue? 回答1: I don't understand if you know that the correct code is: