public async Task <string> ConvertHtmlToPDF(string html, string fileName)
{
var dir = new Java.IO.File(Android.OS.Environment.ExternalStorageDirectory.AbsolutePath + "/Download/");
var file = new Java.IO.File(dir + "/" + fileName + ".pdf");
if (!dir.Exists())
{
dir.Mkdirs();
}
int x = 0;
while (file.Exists())
{
x++;
file = new Java.IO.File(dir + "/" + fileName + "(" + x + ")" + ".pdf");
}
var webpage = new Android.Webkit.WebView(MainActivity.Instance);
//var windowManager = MainActivity.Instance.GetSystemService(Android.Content.Context.WindowService);
//DisplayMetrics outMetrics = new DisplayMetrics();
//windowManager.DefaultDisplay.GetMetrics(outMetrics);
//int widthPixels = outMetrics.WidthPixels;
//int heightPixels = outMetrics.HeightPixels;
//int width = widthPixels;
//int height = heightPixels;
int width = 2102;
int height = 2937;
webpage.Layout(0, 0, width, height);
var client = new WebViewCallBack(file.ToString());
var tokenSource = new CancellationTokenSource();
var task = Task.Run(() =>
{
if (tokenSource.Token.IsCancellationRequested)
{
return;
}
while (true)
{
if (tokenSource.Token.IsCancellationRequested)
{
break;
}
}
}, tokenSource.Token);
client.OnPageLoadFinished += (s, e) =>
{
tokenSource.Cancel();
};
webpage.SetWebViewClient(client);
webpage.LoadDataWithBaseURL("", html, "text/html", "UTF-8", null);
await task;
return(file.ToString());
}
private static async Task <Java.IO.File> SavePhotoToDiskAsync(byte[] data, string directory)
{
Java.IO.File pictureFile;
string photoFileName;
using (var pictureFileDir = new Java.IO.File(directory))
{
if (!pictureFileDir.Exists() && !pictureFileDir.Mkdirs())
{
_logger.LogError("Can't create directory to save image");
return(null);
}
photoFileName = $"Picture-{Guid.NewGuid().ToString()}.jpg";
var imageFilePath = $"{pictureFileDir.Path}{Java.IO.File.Separator}{photoFileName}";
pictureFile = new Java.IO.File(imageFilePath);
}
FileOutputStream fileOutputStream = null;
try
{
fileOutputStream = new FileOutputStream(pictureFile);
await fileOutputStream.WriteAsync(data);
}
catch (Exception e)
{
_logger.LogError($"File {photoFileName} has not been saved: {e.Message}", e);
}
finally
{
fileOutputStream?.Close();
fileOutputStream?.Dispose();
}
return(pictureFile);
}
