I have a Metro app using a WebView control. I'm using NavigateToString to load a html file which may contain hyperlinks. What I then want to do is detect when one of these hyperlinks is selected and, instead of allowing navigation within the WebView control, to launch IE and view the page there instead.
Is this possible within the WinRT constraints, and if so, how?
So far, I've tried capturing the WebView_LoadCompleted() event, but although it does fire at the right time, I can't see any details about the URI from the NavigationEventArgs.
Unfortunately this isn't possible directly because WebView does not include events like Navigating (which were present in Windows Phone).
Luckily Nick Randolph (brilliant Windows Phone and Windows 8 developer) has created a workaround using script events. He's got a great write up on his blog:
http://nicksnettravels.builttoroam.com/post/2012/04/21/Limitations-of-the-WebView-in-Windows-8-Metro-Apps.aspx
Related
I am hesitant to develop a Windows Phone app in the HTML/WinJS Universal App space because of the difficulty of building complex user controls. Before I go the XAML/C# route, I would like to find out if it is possible to use a user control built in XAML/C# inside of an HTML/WinJS view?
My initial feeling is that it is not possible due to XAML parsing not being available in the HTML space, but I am not certain that this is the case. Any thoughts?
Also, I am not interested in 3rd party solutions such as Xamerin. I am really trying to see if this is possible from a native approach.
No. The HTML and Xaml UI stacks in the Windows Runtime are separate and cannot be mixed. You can call non-UI C# or native Windows Runtime Components from JavaScript.
You can include HTML in a Xaml WebView, but there is no reverse hosting.
--Rob
I have been developing iOS and Mac OSX apps since years. So, I was pretty surprised to find no method for Windows 8 Metro WebView to intercept when it starts loading a new page, but only when it finishes loading.
Is there really any workaround for this? I could not find anything both in the docs and on the web...
Thank you very much!
Fabio
You can use the Window.External.Notify() method to trigger an event back in your C# or whatnot. You can also use the Webview.InvokeScript() to activate scripts from outside the control. You can write a script as a string outside the WebView and use the WebView.InvokeScript() with "eval" as the first arg to run that script inside the control.
ScriptNotify
This shows how to use both ScriptNotify and InvokeScript
Windows 8 metro style app tiles are created based on pre-defined xml templates (found here).
Is there any way to hook up to Windows' rendering of the tile to allow a tile preview within an app?
In my app I would like to offer the user a subset of the tile templates listed in the above link and let the user customize the tile content. A live preview of the customized tile rendered within my app would greatly improve the user experience.
you should look into HubTile.
I don't know any free control's right now, but Telerik and Syncfusion have HubTile control
You can't get access to real Windows tile rendering, but you can simulate it since all templates are known. It is very unlikely that Microsoft would change the way tiles are rendered and even if they do you should be able to issue app update to keep up with Microsoft.
Is it possible to disable the location prompt (or auto decline/accept it) that pops up when you visit certain websites that ask for locations? I am not using a MKMapView because my app will be not be just viewing maps (it just may visit websites that might have maps on it).
I'm guessing since the prompt is not being controlled by my app, but by the iOS system, I probably will not be able to auto decline/accept the dialog.
As far as disabling the prompt from within an IOS app while loading a UIWebView, it is possible.
You will need to intercept the html before it gets loaded into the UIWebView then find which part of it triggers the GPS/Location Prompt. Once you found it, you simply remove it from the html then feed the html into the UIWebView thus 'disabling' the prompt. However, as a result, the webpage will be missing that element.
No, it's not possible to do that. Not with UIWebView, not with any iOS browser.
I know no way to prevent the prompt, I hope it will be implemented as a property of the UIWebView.
The dialog is not there for the safety of the user, when it comes to UIWebViews. The app containing the view has already asked for locations access, and it can be enabled and disabled on settings. To ask for location access both from the app and from the web view, I would regard as a bug.
I'm now developing an app on iOS. With some reason, I want to use AssistiveTouch UI in my app. For example, there will display a button in my app like AssistiveTouch, if anyone press this button, four buttons will appear like AssistiveTouch, if anyone press one of there four buttons again, some action i set before will excuse.
Does apple support api about this? Or Is there any source code available?
You would have to reimplement this from scratch. There is no public API for either accessing the existing Assistive Touch feature (it has to be turned on by the user in the settings) or for creating a similar UI.