Example #1
0
        public Task PrintAsync(WebView viewToPrint, string jobName)
        {
            if (Build.VERSION.SdkInt >= BuildVersionCodes.Kitkat)
            {
                IVisualElementRenderer existingRenderer = Platform.GetRenderer(viewToPrint);
                if ((existingRenderer ?? Platform.CreateRendererWithContext(viewToPrint, Settings.Context)) is IVisualElementRenderer renderer)
                {
                    Android.Webkit.WebView droidWebView = renderer.View as Android.Webkit.WebView;
                    if (droidWebView == null && renderer.View is WebViewRenderer xfWebViewRenderer)
                    {
                        droidWebView = xfWebViewRenderer.Control;
                    }
                    if (droidWebView != null)
                    {
                        droidWebView.Settings.JavaScriptEnabled = true;
                        droidWebView.Settings.DomStorageEnabled = true;
                        droidWebView.SetLayerType(Android.Views.LayerType.Software, null);

                        // Only valid for API 19+
                        if (string.IsNullOrWhiteSpace(jobName))
                        {
                            jobName = Forms9Patch.ApplicationInfoService.Name;
                        }
                        var printMgr = (PrintManager)Settings.Context.GetSystemService(Context.PrintService);
                        printMgr.Print(jobName, droidWebView.CreatePrintDocumentAdapter(jobName), null);
                    }

                    if (existingRenderer == null)
                    {
                        renderer.Dispose();
                    }
                }
            }
            return(Task.CompletedTask);
        }
Example #2
0
        public Task PrintAsync(WebView viewToPrint, string jobName, FailAction failAction = FailAction.ShowAlert)
        {
            try
            {
                if (Build.VERSION.SdkInt >= BuildVersionCodes.Kitkat)
                {
                    IVisualElementRenderer existingRenderer = Platform.GetRenderer(viewToPrint);
                    if ((existingRenderer ?? Platform.CreateRendererWithContext(viewToPrint, Settings.Context)) is IVisualElementRenderer renderer)
                    {
                        Android.Webkit.WebView droidWebView = renderer.View as Android.Webkit.WebView;
                        if (droidWebView == null && renderer.View is WebViewRenderer xfWebViewRenderer)
                        {
                            droidWebView = xfWebViewRenderer.Control;
                        }
                        if (droidWebView != null)
                        {
                            droidWebView.Settings.JavaScriptEnabled = true;
                            droidWebView.Settings.DomStorageEnabled = true;
                            droidWebView.SetLayerType(Android.Views.LayerType.Software, null);

                            // Only valid for API 19+
                            if (string.IsNullOrWhiteSpace(jobName))
                            {
                                jobName = Forms9Patch.ApplicationInfoService.Name;
                            }
                            var printMgr = (PrintManager)Settings.Context.GetSystemService(Context.PrintService);
                            printMgr.Print(jobName, droidWebView.CreatePrintDocumentAdapter(jobName), null);
                        }

                        if (existingRenderer == null)
                        {
                            renderer.Dispose();
                        }
                    }
                }
            }
            catch (Exception e)
            {
                if (failAction == FailAction.ShowAlert)
                {
                    Xamarin.Essentials.MainThread.BeginInvokeOnMainThread(async() =>
                    {
                        using (var toast = Forms9Patch.Alert.Create("Print Failure", e.Message))
                        {
                            await toast.WaitForPoppedAsync();
                        }
                    });
                }
                else if (failAction == FailAction.ThrowException)
                {
                    throw e;
                }
            }
            return(Task.CompletedTask);
        }
Example #3
0
        async Task OnPageFinished(Android.Webkit.WebView webView, string jobName, PageSize pageSize, PageMargin margin, TaskCompletionSource <ToFileResult> taskCompletionSource)
        {
            if (string.IsNullOrWhiteSpace(jobName))
            {
                jobName = Forms9Patch.ApplicationInfoService.Name;
            }
            var printMgr = (PrintManager)Settings.Context.GetSystemService(Context.PrintService);
            await Task.Delay(1000); // allow a bit more time for the layout to complete;

            printMgr.Print(jobName, webView.CreatePrintDocumentAdapter(jobName), null);
            _activityIndicatorPopup.Dispose();
            _activityIndicatorPopup = null;
            taskCompletionSource.SetResult(new ToFileResult(false, jobName));
            webView.Dispose();
        }
Example #4
0
        public override bool PrintDocumentFromWebView(object webView)
        {
            try {
                PrintManager printManager = (PrintManager)Forms.Context.GetSystemService(Context.PrintService);

                Android.Webkit.WebView platformWebView = (Android.Webkit.WebView)(webView as CustomWebView).PlatformControl;


                var printAttributes = new Android.Print.PrintAttributes.Builder().Build();
                printManager.Print("BodyReportJob", platformWebView.CreatePrintDocumentAdapter("BodyReportJob"), printAttributes);

                return(true);
            } catch (Exception) {
                return(false);
            }
        }
Example #5
0
        public void print(string content)
        {
            try
            {
                var printManager = (Android.Print.PrintManager) this.ApplicationContext.GetSystemService(Context.PrintService);
                //var browser = new WebView();
                Android.Webkit.WebView s = new Android.Webkit.WebView(this.ApplicationContext);
                //wv.CreatePrintDocumentAdapter()
                //var htmlSource = new HtmlWebViewSource();
                //htmlSource.Html = content;
                //          htmlSource.Html = @"<html><body>
                //<h1>Xamarin.Forms</h1>
                //<p>Welcome to WebView.</p>
                //</body></html>";
                //WebView s = new WebView(this);
                s.LoadData(content, "text/html", "");

                //browser.Source = htmlSource;
                printManager.Print("testm", s.CreatePrintDocumentAdapter("pipi"), null);
            }
            catch (Exception ex)
            {
            }
        }