I am getting "UnsatisfiedLinkError: com.google.gwt.gdata.client.GData.isLoaded()" when using the gwt gdata library..
final String GDATA_API_KEY = "ABQIAAAABGWvCfqj7y33zGBuY57s7EfWCbD5ZXtDEt-shSPCo3EL0Dtuj-0TG3CmT93zHHI9Q";
if (!GData.isLoaded(GDataSystemPackage.CALENDAR)) {
GData.loadGDataApi(GDATA_API_KEY, new Runnable() {
public void run() {
authenticate();
}
}, GDataSystemPackage.CALENDAR);
} else {
authenticate(); // Load application
}
}
Any help?
UnsatisfiedLinkError is a Java error that often happens if code is not available that should be - it can't happen in compiled GWT code as far as I know, since all code has to be linked at compiletime, not runtime. Are you sure you are calling that client code on a client, and not from some server code?
To clarify why this might be happening: GWT allows interaction with native JavaScript by JSNI methods - those methods look to a normal JVM like native calls, implemented with some native library, while they have a javascript impl that is used in the browser. If you try to run that code outside of a browser, there will be no way to run that JS.
Related
I just begin with Cefsharp on C#.
Everything works fine except Cefsharp can not execute some special links that open/run a specific application on the computer.
The link still works on other Chromium official browsers (Google Chrome), I clicked the link and it launches the application. Cefshap is not, it does nothing when I clicked the link.
The link looks something like this: "runapp://api.abcxyz/..."
How can I make it work on Cefsharp?
image show that the link works on other chromium browsers
Firstly for security reasons loading of external protocols is disabled by default. Historically you would have implemented OnProtocolExecution.
There is currently an upstream bug in OnProtocolExecution see https://bitbucket.org/chromiumembedded/cef/issues/2715/onprotocolexecution-page-goes-blank-after
You can implement a workaround using RequestHandler.OnBeforeBrowser and calling Process.Start
It would look roughly something like the following (Written in Notepad++ very quickly, there maybe minor mistakes that you'd have to correct).
public class ExampleRequestHandler : RequestHandler
{
protected override bool OnBeforeBrowse(IWebBrowser chromiumWebBrowser, IBrowser browser, IFrame frame, IRequest request, bool userGesture, bool isRedirect)
{
if(request.Url.StartsWith("mailto:"))
{
System.Diagnostics.Process.Start(request.Url);
//Cancel navigation
return true;
}
return false;
}
}
browser.RequestHandler = new ExampleRequestHandler();
I am trying to use a WebBrowser in a .cs class in a Web Application - NOT A WINDOWS FORM app using (VS 2019).
I know it's a Windows Form app control, but it seems like I should be able to use it in a Web App.
Using WebBrowser in Web App does not have the .Url property, so I just use the .Navigate directly - this is where the code breaks.
I have tried many suggestions on the Net, but nothing seems to work - it looks like most of the examples uses a Web Page - I want to use the WebBrowser directly in code (.cs class).
private static void LoginViaUserAgentFlow()
{
Thread thread = new Thread(delegate ()
{
StringBuilder sb = new StringBuilder(String.Format("{0}/services/oauth2/authorize",
RHOutlook.chosenInstance.sfdcURL));
sb.Append("?response_type=token");
sb.Append(String.Format("&client_id={0}", RHOutlook.chosenInstance.clientId));
sb.Append(String.Format("&redirect_uri={0}", System.Web.HttpUtility.UrlEncode(RHOutlook.chosenInstance.redirectUri)));
WebBrowser webBrowserSFDCLogin = new WebBrowser();
//Here I can't use the .Url becaue it is not available - so I just use
//Navigate to get to the site
webBrowserSFDCLogin.Url = new Uri(sb.ToString());
//This is were it breaks, comes back with error when I navigate to the site.
webBrowserSFDCLogin.Navigate(sb.ToString());
//This code is never reached - failed at above code.
if (webBrowserSFDCLogin.LocationURL != null && webBrowserSFDCLogin.LocationURL.StartsWith(RHOutlook.chosenInstance.redirectUri))
{
//webBrowserSFDCLogin.ScriptErrorsSuppressed = true;
webBrowserSFDCLogin.Stop();
}
});
thread.SetApartmentState(ApartmentState.STA);
thread.Start();
thread.Join();
}
I expect to be able to navigate to the external website. If I can navigate to the site if I copy the url directly in a browser (say Chrome).
I tried using ; this gives me the Url property, but still get the error.
You really should stick to suggestions and examples.
What you are trying to do is to use class that is designed for Windows Application inside a Web Application.
Those two frameworks are similar like Earth and Mars. I am afraid you are not going to be able to grow a tree on Mars.
I'm trying to override the NavigationView behavior:
public partial class CustomizableNavigationView : NavigationView
{
public CustomizableNavigationView()
{
// This gets called
}
protected override void OnApplyTemplate()
{
// This doesn't
}
}
It works on UWP, but not on Android. On Android, it doesn't call OnApplyTemplate and the screen remains blank, there's not content. Questions:
Why doesn't OnApplyTemplate get called on Android? I see that here: https://platform.uno/docs/articles/implemented/windows-ui-xaml-frameworkelement.html it says OnApplyTemplate() is on all platforms
There's no error or anything displayed in the Output panne in VS while running with debugger. Should there be any in this case? Do I need to enable something to log errors?
I noticed that if I don't use partial it gaves me error saying partial is required. This is required only on Android, why is that? A more in-depth explanation would help a lot to understand how things work.
Once I figure out why OnApplyTemplate is not called, I want to do this:
base.OnApplyTemplate();
var settingsItem = (NavigationViewItem)GetTemplateChild("SettingsNavPaneItem");
settingsItem.Content = "Custom text";
My hunch is this won't work on Android. Am I correct? :)
Jerome's answer explains why OnApplyTemplate() was not getting called, to address your other questions:
You can configure logging filters for Uno, this is normally defined in App.xaml.cs. Warnings should be logged by default.
The partial is required because Uno does some code-gen behind the scenes to create plumbing methods used by the Xamarin runtime. Specifically because the control is ultimately inheriting from ViewGroup on Android, it's a native object, and requires special constructors that are used only by Xamarin's interop layer. There's some documentation in progress on this.
Try it and see. :) GetTemplateChild() is supported, and setting ContentControl.Content in this way is supported, so I would expect it to work.
At current version (1.45 and below), the application of styles is behaving differently from UWP. We're keeping track of this in this issue.
The gist of the issue is that Uno resolves the style using the current type and not DefaultStyleKey, and cannot find an implicit style for CustomizableNavigationView.
A workaround for this is to either create a named style from the default NavigationView style, or create an implicit style that uses CustomizableNavigationView as the TargetType instead of NavigationView.
I have a timer in my application. For every 30 min, it will hit the web services and fetch the data and updates the UI. The application was working fine till yesterday. Suddenly, because of some issue, the web services were not available for some time. During that period, Application displayed the RPC Error multiple times(More than 100 alert boxes) in alert window. Because of this alert boxes, my application was hanged and i was not able to do anything.
I have tried several approaches, but nothing worked.Finally, I have tried to use a flag. In all the approaches, this looked promising. so i have implemented it.Basically, in this approach whenever we open an alert we will set a flag.While opening and closing alert we will reset this flag. But it didn't work as expected. Is there any approach, which can help us in avoiding multiple alert windows.
Please help me, to fix this issue.
I would write wrapper for opening alerts, and use only this wrapper, not Alert.show in the code:
public class AlertWrapper {
private static var lastAlert:Alert;
public static function showAlert(text:String, title:String):void {
if (lastAlert) {
PopUpManager.removePopUp(lastAlert);
//or
//return; //ignore last alert
}
lastAlert = Alert.show(text, title, null, 4, onAlertClose);
}
private static function onAlertClose(event:CloseEvent):void {
lastAlert = null;
}
}
Imports are missing, but I hope the idea is clear.
HI,
im trying to call a javascript function from my actionscript code but its not working;
as3:
if (ExternalInterface.available)
{
try
{
ExternalInterface.addCallback("changeDocumentTitle",null);
}
catch(error:Error)
js (inside velocity file using swfobject)
function changeDocumentTitle()
{
alert('call from SWF');
}
anyone know what could be happenin?
If you are trying to invoke a JS function from within your Flex app, you want to use ExternalInterface.call(...) and not ExternalInterface.addCallback(...). From the docs:
public static function call(functionName:String, ... arguments):*
Calls a function exposed by the Flash Player container, passing zero or more arguments. If the function is not available, the call returns null; otherwise it returns the value provided by the function. Recursion is not permitted on Opera or Netscape browsers; on these browsers a recursive call produces a null response. (Recursion is supported on Internet Explorer and Firefox browsers.)
If the container is an HTML page, this method invokes a JavaScript function in a script element.
http://livedocs.adobe.com/flex/3/langref/flash/external/ExternalInterface.html
addCallback() is used if you want to expose an ActionScript function from your Flash app to the HTML container so that it can be invoked via JavaScript.
On the local system, communication between the SWF and Javascript tends to be hampered by security issues. You can reconfigure your flash to allow some of these communications via the "settings manager".
It may also be an issue with "allowscriptacces" not being set where you embed the flash object.
Another problem may be that flash tries to call javascript before the javascript is loaded. The init order thing can be quite annoying.