xxcpzs/XXCpzs.Android/MainActivity.cs

using Acr.UserDialogs;
using Android.App;
using Android.Content;
using Android.Content.PM;
using Android.OS;
using Android.Runtime;
using Android.Views;
using Android.Widget;
using Plugin.CurrentActivity;
using System;
using Xamarin.Forms;
using ZXing.Mobile;

namespace XXCpzs.Droid
{
    [Activity(Label = "XXCpzs", Icon = "@mipmap/icon", Theme = "@style/MainTheme", MainLauncher = true, ConfigurationChanges = ConfigChanges.ScreenSize | ConfigChanges.Orientation)] 
    public class MainActivity : global::Xamarin.Forms.Platform.Android.FormsAppCompatActivity
    {
        internal static Context mContext { get; private set; }
        internal static MainActivity Instance { get; private set; }
        protected override void OnCreate(Bundle savedInstanceState)
        {
            TabLayoutResource = Resource.Layout.Tabbar;
            ToolbarResource = Resource.Layout.Toolbar; 
            
            //var uiOpts = SystemUiFlags.LayoutStable | SystemUiFlags.LayoutFullscreen;
            //LayoutStable表示布局稳定，不随其他变动而变动
            //LayoutFullscreen表示把布局拓宽到全屏幕
            //Window.DecorView.SystemUiVisibility = (StatusBarVisibility)uiOpts;
            //把标题栏设置为透明色
           // Window.SetStatusBarColor(Android.Graphics.Color.Argb(0, 0, 0, 0));


            base.OnCreate(savedInstanceState);
            Instance = this;
            mContext = this;

            UserDialogs.Init(this);
            Rg.Plugins.Popup.Popup.Init(this, savedInstanceState);

            Xamarin.Essentials.Platform.Init(this, savedInstanceState);
            global::Xamarin.Forms.Forms.Init(this, savedInstanceState);
            //初始化代码
            CrossCurrentActivity.Current.Init(this, savedInstanceState);
            MobileBarcodeScanner.Initialize(Application);
            LoadApplication(new App()); 
            DependencyService.Register<XXCpzs.Services.ITextToSpeechService, Services.TextToSpeechService>();
        }
        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);
        }

          
    

        


        #region --自动更新--

        /// <summary>
        /// 使用DownloadManager下载安装文件
        /// </summary>
        /// <param name="context"></param>
        /// <param name="apkAddress"></param>
        public void DownloadUpdateFile(string apkAddress)
        {
            var apkFileName = System.IO.Path.GetFileName(apkAddress);
            DownloadManager.Request request = new DownloadManager.Request(Android.Net.Uri.Parse(apkAddress));
            // request.SetAllowedNetworkTypes(DownloadNetwork.Wifi);//网络环境
            //request.SetDestinationInExternalPublicDir("download", "update1.apk");
            request.SetDestinationInExternalFilesDir(this, Android.OS.Environment.DirectoryDownloads, apkFileName);
            request.SetNotificationVisibility(DownloadVisibility.VisibleNotifyCompleted);
            request.SetMimeType("application/vnd.android.package-archive");
            //设置通知信息
            request.SetTitle(apkFileName);
            request.SetDescription("软件更新");
            //设置为可见和可管理
            request.SetVisibleInDownloadsUi(true);
            //设置为可被媒体扫描器找到
            request.AllowScanningByMediaScanner();
            request.SetAllowedOverRoaming(false);

            //下载管理
            DownloadManager downManager = (DownloadManager)this.GetSystemService(Context.DownloadService);
            //获取此次下载的ID,返回一个唯一编号(用于识别通知来源)
            var refrence = downManager.Enqueue(request);

            // 注册广播监听系统的下载完成事件。
            IntentFilter intentFilter = new IntentFilter(DownloadManager.ActionDownloadComplete);
            var boradcastReceiver = new DownloadReceiver(refrence);
            this.RegisterReceiver(boradcastReceiver, intentFilter);

            /*备注:服务器端apk文件mime类型为application/vnd.android.package-archive
             * 需要权限:android.permission.INTERNET和android.permission.WRITE_EXTERNAL_STORAGE
             */
        }

        /// <summary>
        /// 自定义下载更新
        /// </summary>
        /// <param name="context"></param>
        /// <param name="apkAddress"></param>
        public void DownloadUpdateFile2(Context context, String apkAddress)
        {
            //权限检查
            if (context.CheckSelfPermission(Android.Manifest.Permission.WriteExternalStorage) != Android.Content.PM.Permission.Granted)
            {
                this.RequestPermissions(new string[] { Android.Manifest.Permission.WriteExternalStorage }, 1001);
                return;
            }

            Java.IO.FileOutputStream outputStream = null;
            System.IO.Stream inputStream = null;
            Java.Net.HttpURLConnection connection = null;
            Java.IO.File installFile = null;
            try
            {
                var url = new Java.Net.URL(apkAddress);
                connection = (Java.Net.HttpURLConnection)url.OpenConnection();
                connection.ConnectTimeout = 60 * 1000;//1分钟
                connection.ReadTimeout = 60 * 10 * 1000;
                connection.Connect();
                if (connection.ResponseCode != Java.Net.HttpStatus.Ok)
                {
                    var errorMessage = connection.ResponseCode.ToString() + " " + connection.ResponseMessage;
                    return;
                }
                var contentLength = connection.ContentLength;
                inputStream = connection.InputStream;
                var downloadFile = Android.Net.Uri.FromFile(Android.OS.Environment.GetExternalStoragePublicDirectory(Android.OS.Environment.DirectoryDownloads));
                installFile = new Java.IO.File(downloadFile.Path, System.IO.Path.GetFileName(apkAddress));
                outputStream = new Java.IO.FileOutputStream(installFile, false);//需要获取存储权限
                byte[] data = new byte[4096];
                long total = 0;
                int count;
                while ((count = inputStream.Read(data, 0, data.Length)) > 0)
                {
                    total += count;
                    outputStream.Write(data, 0, count);
                }
            }
            catch (Exception ex)
            {
                Toast.MakeText(this, ex.Message, ToastLength.Long).Show();
            }

            if (outputStream != null)
                outputStream.Close();
            if (inputStream != null)
                inputStream.Close();
            if (connection != null)
                connection.Disconnect();

            if (installFile != null && installFile.Exists())
            {
                var installIntent = new Intent(Intent.ActionView);
                installIntent.SetDataAndType(Android.Net.Uri.FromFile(installFile), "application/vnd.android.package-archive");
                context.StartActivity(installIntent);
            }
        }


        #endregion
    }
}