Xamarin android应用程序在三星s9 +上崩溃

Question

是什么导致应用程序在我的三星s9 +上崩溃，它在Visual Studio中的android模拟器中可以正常工作。

这是我的控件布局

[它在Visual Studio android模拟器中完美工作，但是当我在三星s9 +上安装apk时，它崩溃了。

我的设置：Android 10配置：发布

有人可以解释导致问题的原因吗？

[当我在三星s9 +上打开应用程序时，它立即崩溃，我也重置了设备，但仍然崩溃。它可以在Visual Studio Android模拟器上完美运行]

Answer 1

这是我的控件布局

<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation = "vertical">
    <Button
        android:text="Execute"
        android:layout_width="386.5dp"
        android:layout_height="wrap_content"
        android:minWidth="25px"
        android:minHeight="25px"
        android:id="@+id/ExecuteButton" />
    <TextView
        android:text="Type your command below:"
        android:textAppearance="?android:attr/textAppearanceSmall"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@id/ExecuteButton"
        android:id="@+id/textView1" />
    <EditText
        android:layout_width="382.5dp"
        android:layout_height="56.5dp"
        android:layout_below="@id/CommandText"
        android:id="@+id/CommandText" />
    <TextView
        android:text="Other Tools"
        android:textAppearance="?android:attr/textAppearanceLarge"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@id/ShutdownButton"
        android:id="@+id/textView2" />
    <Button
        android:text="Shutdown Computer"
        android:layout_width="386.5dp"
        android:layout_height="wrap_content"
        android:layout_below="@id/CommandText"
        android:id="@+id/ShutdownButton"
        android:layout_toRightOf="@id/textView2"
        android:layout_marginBottom="0.0dp"
        android:layout_marginTop="0.0dp"
        android:layout_marginRight="1.5dp"
        android:layout_marginLeft="0.5dp" />
</LinearLayout>```

Here is my mainactivity.cs

using System;
using System.IO;
using System.Net;
using System.Net.Mime;
using System.Reflection.Emit;
using System.Threading;
using Android.App;
using Android.OS;
using Android.Support.V7.App;
using Android.Runtime;
using Android.Widget;

namespace Command_Execute_Controller
{
    [Activity(Label = "@string/app_name", Theme = "@style/AppTheme", MainLauncher = true)]
    public class MainActivity : AppCompatActivity
    {
        protected override void OnCreate(Bundle savedInstanceState)
        {
            base.OnCreate(savedInstanceState);
            Xamarin.Essentials.Platform.Init(this, savedInstanceState);
            // Set our view from the "main" layout resource
            SetContentView(Resource.Layout.activity_main);
            Button ExecuteButton = FindViewById<Button>(Resource.Id.ExecuteButton);
            EditText Command = FindViewById<EditText>(Resource.Id.CommandText);
            Button ShutdownComputer = FindViewById<Button>(Resource.Id.ShutdownButton);
            ExecuteButton.Click += (sender, args) =>
            {
                using (var client = new WebClient())
                {
                    client.Credentials = new NetworkCredential("epiz_25603682", "SXcuEhK9CBSi2Y");
                    client.UploadStringAsync(new Uri("ftp://ftpupload.net/htdocs/Status%20Folder/Status.txt"), "command" + "\n" + Command.Text);
                    while (client.IsBusy)
                    {
                        Thread.Sleep(10);
                    }
                }
            };
            ShutdownComputer.Click += (sender, args) =>
            {
                using (var client = new WebClient())
                {
                    client.Credentials = new NetworkCredential("epiz_25603682", "SXcuEhK9CBSi2Y");
                    client.UploadStringAsync(new Uri("ftp://ftpupload.net/htdocs/Status%20Folder/Status.txt"), "shutdown");
                    while (client.IsBusy)
                    {
                        Thread.Sleep(10);
                    }
                }
            };
        }


        public override void OnRequestPermissionsResult(int requestCode, string[] permissions, [GeneratedEnum] Android.Content.PM.Permission[] grantResults)
        {
            Xamarin.Essentials.Platform.OnRequestPermissionsResult(requestCode, permissions, grantResults);

            base.OnRequestPermissionsResult(requestCode, permissions, grantResults);

        }
    }
}