xamarin.android

问题 I am having trouble importing an existing keystore to Visual Studio 2017 (15.7.2) in order to sign my Xamarin.Android application. I switched machines, so I had to do a fresh VS installation. I have successfully created an archive, but I can't get my old keystore imported into VS. No matter what I try, I get the same cryptic error. I can sign the APK manually with the keytool, so it's not about a wrong password. 回答1: From this path in your old machine Copy the folder Keystore in the same path

问题 I'm trying to implement Azure Mobile Services in my Xamarin.Forms app. I'm following this link and it works on iOS but not on Android. It throws this exception: MobileServiceInvalidOperationException - "The server did not provide a response with the expected content." I have tried switching between HTTP and HTTPS but could not get it working. It works on Android (native) as well, just not on Xamarin.Android Any help? 回答1: Your issue is tracked here, and seems to be because of the following:

问题 For quite some time I've had troubles passing variables from one Activity to another, and I've usually had to resolve to some pretty ugly Static-class-hacks to make it work. Generally something along the lines of a static method that I call with the type of the Activity, along with the variables the Activity requires. These gets stored in a static variable, and retrieved in the constructor of said activity. Like I said, pretty ugly. And there's no such thing as "myActivity.StartActivity(new

问题 I have the following layout: <Button android:id="@+id/MyButton" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="@string/Hello" android:clickable="true" android:onClick="Foo" /> And this in my Activity: [Activity(Label = "LayoutTest", MainLauncher = true, Icon = "@drawable/icon")] public class Activity1 : Activity { protected override void OnCreate(Bundle bundle) { base.OnCreate(bundle); SetContentView(Resource.Layout.Main); } public void Foo(View v) {

问题 I use Visual Studio 2015 with Xamarin. I'm naming my project "Phoneword" I see this code such as tutorial/example on Xamarin's site. The same error for TranslateButton and CallButton members. MainActivity.cs using System; using Android.App; using Android.Content; using Android.Runtime; using Android.Views; using Android.Widget; using Android.OS; namespace Phoneword { [Activity(Label = "Phoneword", MainLauncher = true)] public class MainActivity : Activity { protected override void OnCreate

问题 I am new to Xamarin Mobile App Development.I have developed a basic mobile app but I am having an issue with creating the .apk to test it on my Samsung Galaxy S-5 Android phone.I searched few ways from google but None of them worked. Kindly suggest some simple solution for this, also I want to run the app on windows phone too if there is any way for that as well?. Any help would be grateful. 回答1: For Generating an APK file you need to perform the following steps in Visual Studio 15: 1.In your

问题 Even after installing v4 support library from Xamarin Component Store,I get this error.I tried googling for these problems but I always get the same error in Xamarin Studio while developing android app 回答1: This is Xamarin Bug 32498 The problem starts when you are normally installing one of Xamarin.Android.Support.* nuget packages. Then IDE (VS2015 for me) hangs and nothing goes well, so you're forced to shutdown the IDE. After re-openning the IDE and forcing a link to the assemblies and when

问题 I'm unable to perform an HTTP Post with an app running in an Android Emulator . {StatusCode: 400, ReasonPhrase: 'Bad Request', Version: 1.1, Content: System.Net.Http.HttpConnection+HttpConnectionResponseContent, Headers: { Server: Microsoft-HTTPAPI/2.0 Date: Wed, 23 Oct 2019 00:58:01 GMT Connection: close Forwarded: host=XXX.XXX.X.XX:XXXXX; proto=https Content-Type: text/html; charset=us-ascii Content-Length: 374 }} Setup: I'm using an IP address generated by Conveyor by Keyoti I installed a

问题 I am developing an Android app in Xamarin.Android(C#). However, i do feel that this question can also be answered by any Java devs as well. I am new in android development. Anyways, i created a fragment with just a LinearLayout and a TextView inside it. When i create the background class for it, i don't inherit(on in JAVA's word, extend ) it from the Fragment class but rather from the LinearLayout class. So, the MyFragment.cs file starts like this : public class MyFragment : LinearLayout The

问题 I am working with a client app in Xamarin on Android and I need TLS 1.2 and NTLM. So far, I have been using the regular System.Net.HttpClientHandler and it has worked fine - it looks like this: new System.Net.Http.HttpClientHandler() { Credentials = credentials }; But now I have a new customer and I need TLS 1.2. So I made this code for Android: new Xamarin.Android.Net.AndroidClientHandler() { Credentials = credentials }; With the environment variable: XA_HTTP_CLIENT_HANDLER_TYPE=Xamarin