Xamarin, iOS, Callkit and dialler - xamarin.ios

I have a code based on https://github.com/softsan/callkitsample. Everything works, but when during a call I tap on green phone icon, nothing happens. I would like that window with call details would appear, like it is during regular phone call. Any idea how to do it?
I'm quite new to Xamarin.
Calls are working (I can accept and make a call). I just would like to avoid writing my own view controller for "call in progress" UI..

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Who is calling VisualStateManager.GoToState behind the scenes?

I am a newbie to xaml and windows app dev so sorry if this question might seem silly.
I created a textbox and in the designer I right clicked it and selected edit template=>edit a copy and put it into my custom dictionary.
In the control template for this textbox I saw visual states like disabled,focused and so on. And I modified them and run the mobile app and observed that my changes work like changing border color when textbox is focused.
But in order for this to work somebody has to call
VisualStateManager.GoToState("Focused")
when the textbox is focused so who is calling this because I don't see any visual transitions in the control template so how is this happening?
The code in the control itself is calling VisualStateManager.GoToState(...) .
When you start implementing your own custom controls, you might subscribe to events you have available and transition states based on your own logic. Here is an example of a custom control with its own two custom states.
https://github.com/xyzzer/WinRTXamlToolkit/blob/master/WinRTXamlToolkit/Controls/WatermarkTextBox/WatermarkTextBox.cs
XAML is a compiled language, and if you've looked extra close, what happens under the hood, is that the class behind your xaml has the same namespace as your xaml code.
This means (for no practical purpose) that compiling your program turns all of that XAML into C# code before then going over to MSIL and eventually execute as a binary program.
Much of the state changes that happen are event based, and TextBox, like all other user controls, will transmit a message and listen to messages. The Page that contains the TextBox will probably be the one that transmits a state change whenever one of it's children gets focus, and as a good control, the TextBox listens for this event and reacts to it.

WM_PAINT not send when using WS_EX_COMPOSITE

I'm working in a legacy application using MFC.
We have a mechanism to enable/disable controls depending on some business logic.
This mechanism is implemented in the CView-derived class. The way it works is all the views in the application derived from a common CView-derived class (CBaseView) and on the PreTranslateMessage all controls of the view are enabled/disabled.
This worked fine so far because all controls send at least WM_PAINT message when they need to be painted. So the system worked without the user having to move the mouse or anything. I recently added some drawing features and I had to use WS_EX_COMPOSITE to get ride of some flickering. With this flag activated my CView-derived class is not getting any called to PreTranslateMessage when creating the view....so the controls are not disabled until the user moves the mouse over the control.
I understand there is no way to send WM_PAINT using WS_EX_COMPOSITE but is there other message I can use to get the same behaviour???
Edited:
I am currently using the OnIdle approach but it has a big drawback, the windows doesn't become idle until after drawing all the controls...so when you enter the screen al controls are enabled and inmediately they are disabled...this makes a quite ugly effect!
More solutions???
Thanks in advance...
The logical place to enable/disable controls would be CView::OnUpdate, it is called by the framework after the view's document has been modified and from OnInitialUpdate(); you can also call this function if there is some change that would trigger re-evaluation of your business logic.
EDIT
After reading the question a bit more closely, what you could also do is to post a private message at the end of OnInitialUpdate and "catch" it in your PreTranslateMessage:
PostMessage(WM_APP, 0, 0);
Calling InvalidateRect followed by UpdateWindow against the window in question will mark the entire client area as dirty and force an immediate repaint. Remember that WM_PAINT is not really a message, in the queue in the usual sense, it is pushed out after all other messages have been processed for that window, which would include any invalidations of the area being drawn. No message is generated at all if there are no invalid segments of the active window display.

Adapting Modal Dialog Script to Firefox

I'm adapting my regression tests to test a web app in firefox. The biggest stumbling block seems to be how to automate the modal dialogs in firefox.
In ie I use variations of the script below, but it doesn't work in Firefox. Is there an alternative that will work in both ie and firefox?
popup=Thread.new {
autoit=WIN32OLE.new('AutoItX3.Control')
ret=autoit.WinWait(title,"",60)
if (ret==1)
puts "There is popup."
autoit.WinActivate(title)
button.downcase!
if button.eql?("ok") || button.eql?("yes") || button.eql?("continue")
autoit.Send("{Enter}")
else
autoit.Send("{tab}")
autoit.Send("{Enter}")
end
elsif (ret==0)
puts "No popup, please check your code."
end
}
at_exit { Thread.kill(popup) }
end
button.click_no_wait
check_for_popups("Message from webpage", "OK")
Given you are talking about a javascript created dialog, I really have to ask, is there a lot of value in actually testing those?
It basically amounts to testing the functionality of the browser
If you are talking about the type of popups described here http://wiki.openqa.org/display/WTR/JavaScript+Pop+Ups then I think the first solution, of overriding the javascript may well be your best cross platform option.
The problem with modal dialogs like this is that they are basically a UI even that is happening out at the OS level, it's no longer inside the browser DOM, and thus you need tools that are specific to the OS (like stuff that depends on win32ole, such as autoit) in order to generate the necessary interaction with the native UI and click buttons, send keystrokes etc. Most of the solutions presented should I think work with FF on windows (with proper renaming of expected window titles etc) but would fail on a mac or *nix OS. That means you need a different solution for each OS, which is a pain.
It might simply be easier to verify you can find the proper stuff that would fire the event in the HTML of the page, so you know an event WOULD be fired, and then override things so it isn't. After all it's not really your job to validate that the browser pops up a local dialog when something like alert('This is an alert box') is invoked in javascript. Your concern is that in the HTML a given element is coded to fire off the event that is needed e.g. that there's something like this onClick = 'javascript:x = confirm('Do you really want to do this');" affiliated with the element
I am experiencing a similar problem in Firefox (and I do have to test in Firefox). I can see the code calling the Javascript but when I try to override as described above nothing happens. Is there any kind of a workaround for this? Anticipated updates to Watir? ;-)

using BeginReceivingRemoteControlEvents in Monotouch

I've made my app play music in the background, I also successfully made it become the media player by calling BeginReceivingRemoteControlEvents. however, the RemoteControlReceived method never gets called. the same logic in Objective C is working fine. Any samples or guidelines appreciated.
You need to ensure it is placed on the First responder view, and if not, the event needs to be passed up along the chain of responders until it reaches your remote events. Try to imagine remote control events the same as keypresses on the keyboard. For example, If the app is focused on a button, and you press some keyboard keys, nothing will happen, as a button isn't listening for key presses.
A similar situation is occurring in your code. Try to create a basic, single viewed project with the BeginReceivingRemoteControlEvents and the method override to receive the event (cant remember what it is, RemoteEventReceived() or something similar.) This should get fired when you press a remote button.
(sorry I cant give sample code, not in front of mac at the minute)
You might want to try using a later mechanism to listen for remote control events. For example, if you want to listen to the headset button:
MPRemoteCommandCenter *commandCenter = [MPRemoteCommandCenter sharedCommandCenter];
[commandCenter.togglePlayPauseCommand addTargetWithHandler:^MPRemoteCommandHandlerStatus(MPRemoteCommandEvent * _Nonnull event) {
NSLog(#"toggle button pressed");
return MPRemoteCommandHandlerStatusSuccess;
}];
or, if you prefer to use a method instead of a block:
[commandCenter.togglePlayPauseCommand addTarget:self action:#selector(toggleButtonAction)];
To stop:
[commandCenter.togglePlayPauseCommand removeTarget:self];
or:
[commandCenter.togglePlayPauseCommand removeTarget:self action:#selector(toggleButtonAction)];
You'll need to add this to the includes area of your file:
#import MediaPlayer;
This works in the background, ONLY if you are an audio app playing in the background (i.e. you have to set that background mode in your app capabilities).

Blackberry application hangs and freezes on UI modification

I've written a Blackberry appliation with the Blackberry JDE, running on a 9000 simulator. I tested it a week or so ago and loaded it on a Blackberry 9000 phone, and everything worked just fine. Sometime between then and now, though, something went wrong.
My code does the whole moving arrow "loading things from the internet" or whatever thing, but no screens pop up. My original screen, which is just a MainScreen with a RichTextField doesn't load at all. This screen, at least, has most likely not changed in the passing week, so if something broke, it would be in one of the later screens/lines of code that it shouldn't even be getting to yet!
Is it possible that my .jad or .cod file are corrupted somehow? I noticed that when I first put code on my machine, I just stuck in the .cod file that Eclipse provided me. Then, last week, the .cod file it gave me didn't work, because it was ACTUALLY a zip file with a two .cod files inside of it. Using the .cod file with the same name as the .cod file they were in succesfully loaded my app. I did the same this time, and I don't get invalid cod file errors or anything, but the app is still as broken.
Is there some direction I should be looking? Is the issue likely to be in my code, the cod file, the phone, or somewhere completely else?
-Jenny
Edit: I've narrowed it down to the problem only occuring if I attempt to load a particular screen. My problem is that this screen is nearly identical to another screen that IS working just fine on the actual device. Both screens are generated from the same method (which makes a webservice call and gets XML back and parses it to populate the fields of the screen). The only difference is that the screen that is breaking is going to a different URL. This URL DOES work (both from a browser and from the simulated device), so I"m at a loss. The application doesn't seem to crash, (it's still running in the background), it just doesn't attempt to display anymore.
Edit:
Okay, I'm seeing some tunneling errors immediately after I load my app, (but before I execute any of my networking code). When i do execute my networking code, it works just fine, unless it happens to be for my "Rental" section. I commented out all calls to that, and made my menu item for Rentals simply make a print statement. The code behaves identically (it freezes, or displays a white screen after selecting the button). All other menu items work (including those that call threads or network methods). And the rentals menu sucessfully executes in the simulator.
private MenuItem _rentals = new MenuItem("My Rentals", 110,
10) {
public void run() {
//if the last thing I did was a rental
//just show the screen
//else, reload rentals
System.out.println("Rentals was selected");
displayError("Rentals was pressed");
// if(rental){
// System.out.println("It's a rental!");
// popScreen(getActiveScreen());
// pushScreen(_offeringsScreen);
// }else{
// System.out.println("Getting Rentals from scratch");
// RentalsThread _rThread = new RentalsThread();
// _rThread.start();
// }
}};
I'm at a complete loss here: The device debugger doesn't seem to even register me selecting the menu item, and not a single line of code executes! It just freezes! I'll try putting back in my RentalsThread call in the start of my program (which was also freezing) just to see if I can tease apart the problem with the Rentals Thread (which makes the Rental Screen), and the problem with the Rentals menu item.
Okay, I think I have this figured out.
1.) My code was still behaving identically even after commenting out everything because I wasn't rebuilding the .COD files (they automatically rebuild if you try to run it in the simulator, but don't when you're generating a .ALX file, for some reason).
2.) The code I had for generating the Rental Screen was adding things to said screen. Apparently this is all well and good on the simulator, but on the real device it's required that you do all graphics manipulation (even for graphics not yet displayed) in an event thread (I used invokeAndWait).
So, now everything seems to be working just fine. There wasn't anything wrong with my networking (nor did I think there was, because my other networking screen works just fine). I still don't know why I get all those weird tunneling network things before I start, but it doesn't seem to affect anything yet.
See also:
BlackBerry UI Threading - The Very Basics
BlackBerry threading model
several suggestions:
if you have some background work with resources like file IO or networking, app just may stuck there... provide error handling and try to debug app from device!
code signing, check latest code update for API which require signing. But since there are no errors this is doubtful.
To debug on device, run Blackberry Device Manager, attach phone to usb, in eclipse select project, Context Menu -> Debug As -> Blackberry Device.
See A50 How to Debug and Optimize
UPDATE I see "Tunnel failed" exception, so it's like network connection problem...
See tunnel failed in blackberry bold. why?
How to Configure Full Internet Access On BlackBerry
UPDATE Support - Application stops responding when opening a connection

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