Basically I embedded a browser into my application. However the request I want to view (google) does not show in the application despite my code linking to it. Any ideas?
BrowserFieldConfig myBrowserFieldConfig = new BrowserFieldConfig();
myBrowserFieldConfig.setProperty(BrowserFieldConfig.NAVIGATION_MODE,BrowserFieldConfig.NAVIGATION_MODE_POINTER);
BrowserField browserSession = new BrowserField(myBrowserFieldConfig);
//browserSession.
browserSession.requestContent( "http://www.google.com" );
add(browserSession);**
It need MDS service to be running. Check for MDS. it will work.
Related
I'm trying to open new tab in the same browser session and switch context to it.
When I do it with following code:
await BrowserSession.Browser.Contexts[0].NewPageAsync();
I got the error: Please use Browser.NewContextAsync()
await BrowserSession.Browser.NewPageAsync();
from other hand create new BrowserContext and open new page in separate window (not new tab).
I've run into a problem using WebView to access the authorization uri necessary to authorize access by my Xamarin forms (running under iOS) app. I don't believe the problem lies with the WebView and the particular url, and not the Dropbox API itself.
First, I should mention that I am able to use WebView to access arbitrary web sites, so I know I am able to access the web generally from within my app.
In the code below you will see that I have two buttons set up. The first uses a WebView to successfully access the Wikipedia page for Xamarin. The second attempts to contact Dropbox in order to begin the authentication process. However, that request fails with the message:
Error (400) It seems the app you were using submitted a bad request. If you would like to report this error to the app's developer, include the information below. Invalid redirect_uri. Must be an absolute uri.
Initially, I thought that the problem was that the redirection uri wasn't registered correctly, but if I copy the url being passed to the webview (included below as a comment), and paste it directly into safari, the authentication page opens as expected. It is only when using WebView that I receive the error message. That makes me think that it's not the redirect_uri, or the url itself, but something in the way that the WebView is presenting it to dropbox.com.
Can anyone help me out? I've also tried taking a uri that works in Safari / Chrome and passing it directly to the webview (bypassing DropboxOAuth2Helper) without any luck. The uri will work in Safari, but not in the WebView.
public App()
{
Button xamarinBtn = new Button();
xamarinBtn.Text = "Xamarin";
xamarinBtn.Clicked += OnButtonClicked;
xamarinBtn.StyleId = "Xamarin";
Button dropboxBtn = new Button();
dropboxBtn.Text = "Dropbox";
dropboxBtn.Clicked += OnButtonClicked;
dropboxBtn.StyleId = "Dropbox";
StackLayout layout = new StackLayout();
layout.Children.Add(xamarinBtn);
layout.Children.Add(dropboxBtn);
ContentPage page = new ContentPage();
page.Content = layout;
MainPage = new NavigationPage(page);
}
private void OnButtonClicked(object sender, EventArgs e)
{
Button btn = sender as Button;
UrlWebViewSource source = new UrlWebViewSource();
if (btn.StyleId == "Xamarin")
{
source.Url = "https://en.wikipedia.org/wiki/Xamarin";
}
else if (btn.StyleId == "Dropbox")
{
string oauth2State = Guid.NewGuid().ToString("N");
Uri authorizeUri = DropboxOAuth2Helper.GetAuthorizeUri(OAuthResponseType.Token, "d1612up7la63slo", "http://127.0.0.1:52475/authorize", oauth2State);
source.Url = authorizeUri.AbsoluteUri; // https://www.dropbox.com/oauth2/authorize?response_type=token&client_id=d1612up7la63slo&redirect_uri=http%3A%2F%2F127.0.0.1%3A52475%2Fauthorize&state=1062a614aa3d4e2e85cd84de32903987
}
WebView webView = new WebView();
webView.Source = source;
ContentPage page = new ContentPage();
page.Content = webView;
MainPage.Navigation.PushAsync(page);
}
You should add that as a OAuth 2 redirect URI for your app via the App Console:
After doing this, I tried OC code it works properly and can show the authorize view. But Unfortunately, the Dropbox for Xamarin failed. You can try to use another api to show this view:
Uri authorizeUri = DropboxOAuth2Helper.GetAuthorizeUri("d1612up7la63slo");
source.Url = source.Url = authorizeUri.AbsoluteUri;
I am using Xamarin.Form to write a Android app. I have successfully implemented the OAuth and I can sign in and get the user information using OAuth2Authenticator.
When the user clicks signup/Login I show the OAuthLoginPresenter as follows:
var oAuthLoginPresenter = new Xamarin.Auth.Presenters.OAuthLoginPresenter();
oAuthLoginPresenter.Login(App.OAuth2Authenticator);
This works great and the user sees the login page.
When the user clicks Allow the completed Event on the OAuth2Authenticator instance fires as expected and the user is once again back looking at the app.
However this is where my problem is - I get a notification:
If CustomTabs Login Screen does not close automatically close
CustomTabs by Navigating back to the app.
Thing is though I am back at the app. If I look at all my open apps I can see the login screen is still running in the back ground so that presenter has not closed.
In my intercept Activity which gets the redirect looks like this:
[Activity(Label = "GoogleAuthInterceptor")]
[IntentFilter
(
actions: new[] { Intent.ActionView },
Categories = new[]
{
Intent.CategoryDefault,
Intent.CategoryBrowsable
},
DataSchemes = new[]
{
// First part of the redirect url (Package name)
"com.myapp.platform"
},
DataPaths = new[]
{
// Second part of the redirect url (Path)
"/oauth2redirect"
}
)]
public class GoogleAuthInterceptor: Activity
{
protected override void OnCreate(Bundle savedInstanceState)
{
base.OnCreate(savedInstanceState);
// Create your application here
Android.Net.Uri uri_android = Intent.Data;
// Convert Android Url to C#/netxf/BCL System.Uri
Uri uri_netfx = new Uri(uri_android.ToString());
// Send the URI to the Authenticator for continuation
App.OAuth2Authenticator?.OnPageLoading(uri_netfx);
Finish();
}
}
Am I missing a step in here to close that presenter? Any other ideas please?
UPDATE:
I have now found that using Chrome as the default browser works fine and presenter is closed. But if I use a Samsung browser as my default browser - it does not close.
So I need a way to close it manually.
Just set property to null when initializing Xamarin.Auth in your main activity:
//don't show warning message when closing account selection page
CustomTabsConfiguration.CustomTabsClosingMessage = null;
We are currently working on the finishing touches of an application which uses Phonegap and have hit some issues with the Blackberry port.
So far, we've been reviewing the content available online and can't find a really finale answer to this. Seems like the "right" way to make and oauth authentication process for either Twitter, Facebook or Foursquare would be to use the ChildBrowser plugin, instantiate a window and then use that to handle the process.
Rightly so, there seems to be a lack of a ChildBrowser plugin for Blackberry. We've been looking so far at a couple of private projects on Github that look like they build/use that capability but we are not sure on how to control the created window.
Most (or all?) of those plugins refer to invoking the native Blackberry browser to handle the URLS, but then how would be manage to work on the callbacks, get the tokens and close the windows since it's another process.
For example, we have this concept code:
function openWindow() {
if (typeof blackberry !== 'undefined') {
app_id = SOMETHING_HERE;
redirect = 'http://www.facebook.com/connect/login_success.html';
url = 'https://graph.facebook.com/oauth/authorizeclient_id='+app_id+'&redirect_uri='+redirect+'&display=touch&scope=publish_stream';
var args = new blackberry.invoke.BrowserArguments(url);
blackberry.invoke.invoke(blackberry.invoke.APP_BROWSER, args);
}
}
Which works for opening the URL, but that's it. Is there a way to get a handle on the window and inject some listener to events? What should be our correct approach?
Thanks!
I am not PhoneGap user, but we did have to handle a very similar scenario - native app invokes the mobile browser to prompt the oAuth flow and then be able to handle a callback to the aative app.
This is possible on the BlackBerry using the BrowserContentProviderRegistry API. You can register your app to be invoked whenever a particular MIME type is returned to the browser. Sounds complicated but its fairly straightforward when all the pieces are in play.
Here is the rough flow -
Native app invokes browser to the oAuth page. This is part is easy and seems like you got this part.
The oAuth redirect needs to go to a URL that you can control. Something like http://mycompany.com/oAuthRedirectHandler.asp.
The oAuthRedirectorHandler.asp has simple code like this (we chose classic ASP but this can be done in PHP or any language, you can also ignore the Android block below) -
<html><body>
<h1>Redirect page</h1>
If you are not re-directed, please open the application manually.
<% strUA = Request.ServerVariables("HTTP_USER_AGENT")
if (InStr(strUA, "BlackBerry")) then
Response.Write("Opening appplication on BlackBerry")
Response.ContentType="application/x-MyCustomApp"
elseif (InStr(strUA, "Android")) then
Response.Write("Opening appplication on Android")
Response.Redirect("MyCustomApp://mycompany.com")
end if %>
</body> </html>
In your BlackBerry code you want a new BrowserContentProvider like this -
final class CustomBrowserProvider extends BrowserContentProvider{
String[] ACCEPT = new String[]{"application/x-MyCustomApp};
String appName;
CustomBrowserProvider(String appName){
this.appName = ApplicationDescriptor.currentApplicationDescriptor().getModuleName();
//cache this appName from the constructor in the invocation code below.
}
public String[] getSupportedMimeTypes() { return ACCEPT;}
public String[] getAccept(RenderingOptions context){return ACCEPT;}
public BrowserContent getBrowserContent( BrowserContentProviderContext context) throws RenderingException {
//this is where the callback happens
//this is happening in a separate process, raise your main app here using the appName that got passed in
//I dont have a sanitized ready to go sample to post here on how to do this, but not too complicated
//as a hint use the ApplicationDescriptor and CodeModuleManager classes
return null;
}
}
Now, in your application initialization, register this new BrowserPlugin like this -
BrowserContentProviderRegistry converterRegistry = BrowserContentProviderRegistry.getInstance();
converterRegistry.register(new CustomBrowserProvider());
Hope this helps. This has worked pretty well for us. The one downside we've had here is that when the user returns to the browser app, they are left with an empty page and there is no good way to close that in the BB.
I've been trying to find a way to add a listener to the BlackBerry BrowserField for when the user clicks a link and the URL changes. I have tried adding a BrowserFieldListener below, but I keep getting a warning message declaring that Document cannot be resolved as a type. Any suggestions on capturing when a user clicks a link and it takes them to a certain URL?
BrowserFieldListener listener = new BrowserFieldListener(){
public void documentLoaded(BrowserField browserField, Document document) throws Exception
{
browswerField.setTitle("Example");
}
};
browserField.addListener(listener);
Are you importing the declaration of Document somewhere?
I do something similar using the BrowserField to pars HTML, see my blog posting here.