Ejemplo n.º 1
0
        private async Task CreateTestByteFileCache(byte[] bytes)
        {
            var context   = Application.Context;
            var cacheFile = new Java.IO.File(context.CacheDir.AbsolutePath, Filename);

            if (cacheFile.Exists())
            {
                cacheFile.Delete();
            }
            cacheFile.CreateNewFile();
            var fo = new FileOutputStream(cacheFile);
            await fo.WriteAsync(bytes);

            fo.Close();
        }
Ejemplo n.º 2
0
        public Intent SaveAndView(string fileName, string contentType, MemoryStream stream, PDFOpenContext context, Context appctx)
        {
            string exception = string.Empty;
            string root      = null;



            if (Android.OS.Environment.IsExternalStorageEmulated)
            {
                root = Android.OS.Environment.ExternalStorageDirectory.ToString();
            }
            else
            {
                root = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);
            }

            Java.IO.File myDir = new Java.IO.File(root + "/PDFFiles");
            myDir.Mkdir();

            Java.IO.File file = new Java.IO.File(myDir, fileName);

            if (file.Exists())
            {
                file.Delete();
            }

            try
            {
                FileOutputStream outs = new FileOutputStream(file);
                outs.Write(stream.ToArray());

                outs.Flush();
                outs.Close();
            }
            catch (Exception e)
            {
                exception = e.ToString();
                return(null);
            }

            if (file.Exists() && contentType != "application/html")
            {
                string extension = MimeTypeMap.GetFileExtensionFromUrl(Android.Net.Uri.FromFile(file).ToString());
                string mimeType  = MimeTypeMap.Singleton.GetMimeTypeFromExtension(extension);
                Intent intent    = new Intent(Intent.ActionView);
                intent.SetFlags(ActivityFlags.ClearTop | ActivityFlags.NewTask);
                Android.Net.Uri path = FileProvider.GetUriForFile(appctx, Android.App.Application.Context.PackageName + ".fileprovider", file);
                intent.SetDataAndType(path, mimeType);
                intent.AddFlags(ActivityFlags.GrantReadUriPermission);

                return(intent);
                //switch (context)
                //{
                //    case PDFOpenContext.InApp:
                //        appctx.StartActivity(intent);
                //        break;
                //    case PDFOpenContext.ChooseApp:
                //        appctx.StartActivity(Intent.CreateChooser(intent, "Choose App"));
                //        break;
                //    default:
                //        break;
                //}
            }
            else
            {
                return(null);
            }
        }