https://bugzilla.xamarin.com/show_bug.cgi?id=59868

Xamarin Insights will be disconnected in 1 month and i still dont see app center even half good as xamarin insights. Especially exception tracking. for me in order to see the details of an exception I need to click 4-5 times and to close an exception. They truncate the error properties like events. Probably they use the same code.(I have already reported all those). Since they dont sport UWP yet, I spent a good half a day to create my own solution for UWP.

• 1 sql azure database
• 1 web api
• akavache to store offline exceptions to send later (batch those offline exceptions on start up)
• 1 mvc front end

I swear i spent 4 hours and completed a better version. I have been testing it last 4 days and without any problem. How hard is it? why App center team cant deliver a good one. Now I am thinking to disconnect Android also and use my own api.

I need to implement the chat bot using directline api

Hey guys,
Time and time again I seem to be repeating myself in generating custom renderers for customers who wish to have a "Hybrid" applications built on the Forms framework.

Many of you will already use HybridWebView as included in the XLabs framework and that is fine, this is not a replacement!.
However I have had customers before question the additional bloat this brings as well as the nightmare of setting it up every time which was a blocker when I was first learning the framework.

It is because of this I created a simple plugin design to give quick and easy access to a lot of shared WebView API's and felt like I may as well share it with everyone else, as I know a lot of people just starting to learn this platform have ran into this blocker as me in the past.

You can access the Nuget and GitHub using the following links:
https://nuget.org/packages/Xam.Plugin.WebView/1.0.0
https://github.com/SKLn-Rad/Xam.Plugin.Webview

It would be great to get your feedback as well as the benefit of free testing!
So feel free to throw any questions my way if so desired. I am a Java developer originally so my C# could always be improved!

P.S: I really think this forum needs a subsection for community projects to encourage and better index stuff like this... don't you think?

~ Ryan

My application runs on the emulator, on the mobile it opens and ends. Apple rejected it and gave me this error. You know what it is?

{"app_name":"meuappApp.IOS","timestamp":"2018-03-11 04:39:25.79 -0700","app_version":"1.0","slice_uuid":"edfcbb95-3b54-3d9f-9ad4-5cb6462aa990","adam_id":0,"build_version":"1.7","bundleID":"com.meuappapp.meuapp","share_with_app_devs":false,"is_first_party":false,"bug_type":"109","os_version":"iPhone OS 11.2.5 (15D60)","incident_id":"3CD2E372-8BAC-4E7A-A03C-7D5E8B6768D2","name":"meuappApp.IOS"}

Incident Identifier: 3CD2E372-8BAC-4E7A-A03C-7D5E8B6768D2
CrashReporter Key: d1e255b6bbba63239d1ebcb358f272a4ff92d897
Hardware Model: iPad5,1
Device Model: J96AP
Process: meuappApp.IOS [337]
Path: /private/var/containers/Bundle/Application/5D8FA83E-3A75-4C62-B1AF-B0344CF22C33/meuappApp.IOS.app/meuappApp.IOS
Identifier: com.meuappapp.meuapp
Version: 1.7 (1.0)
Code Type: ARM-64 (Native)
Role: Foreground
Parent Process: launchd.development [1]
Coalition: com.meuappapp.meuapp [414]

Date/Time: 2018-03-11 04:39:25.6692 -0700
Launch Time: 2018-03-11 04:39:23.0013 -0700
OS Version: iPhone OS 11.2.5 (15D60)
Baseband Version: n/a
UDID: 19d5688bcf385b1407699196b9432bed7c64d9a9
Report Version: 104

Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Exception Note: EXC_CORPSE_NOTIFY
Triggered by Thread: 0

Application Specific Information:
abort() called

Filtered syslog:

Timestamp Thread Type Activity PID
2018-03-11 04:24:33.0712 -0700
0x46b 1024 0x0 100 hangtracerd: XPC: Client started new connection: pid 68
2018-03-11 04:24:33.0715 -0700
0x46b 1024 0x0 100 hangtracerd: New proc: /usr/libexec/backboardd(68)
2018-03-11 04:24:33.0716 -0700
0x46b 1024 0x0 100 hangtracerd: Initialization complete now watching hangs for backboardd(68) | com.apple.coreanimation.display.primary.hangEvent
2018-03-11 04:24:33.0748 -0700
0x400 1024 0x0 100 hangtracerd: refreshPreferences: Memory Logging Enabled
2018-03-11 04:24:33.0749 -0700
0x400 1024 0x0 100 hangtracerd: refreshPreferences: Hang Tracing Enabled
2018-03-11 04:24:33.0749 -0700
0x400 1024 0x0 100 hangtracerd: refreshPreferences: HangTracerEnableTailspin = 1
2018-03-11 04:24:33.0749 -0700
0x400 1024 0x0 100 hangtracerd: refreshPreferences: App Activation Logging Disabled
2018-03-11 04:24:45.6118 -0700
0x687 1024 0x0 100 hangtracerd: XPC: Client started new connection: pid 62
2018-03-11 04:24:45.6121 -0700
0x687 1024 0x0 100 hangtracerd: New proc: /System/Library/CoreServices/SpringBoard.app/SpringBoard(62)
2018-03-11 04:24:45.6122 -0700
0x687 1024 0x0 100 hangtracerd: Initialization complete now watching hangs for SpringBoard(62) | UIKit-runloop
2018-03-11 04:24:47.5319 -0700
0x687 1024 0x0 100 hangtracerd: SpringBoard: Hang detected 1.95s (UIKit-runloop)
2018-03-11 04:24:47.5468 -0700
0x687 1024 0x0 100 hangtracerd: SpringBoard: Attempting to save tailspin at /var/root/Library/Caches/hangtracerd/tmp/UIKit-runloop-SpringBoard-2018-03-11-042447.tailspin
2018-03-11 04:24:48.9447 -0700
0x687 1024 0x0 100 hangtracerd: SpringBoard: Moving tailspin to spool: /var/root/Library/Caches/hangtracerd/spool/UIKit-runloop-SpringBoard-2018-03-11-042447.tailspin
2018-03-11 04:24:48.9457 -0700
0x687 1024 0x0 100 hangtracerd: SpringBoard Log credits: 4 -> 3
2018-03-11 04:24:48.9457 -0700
0x687 1024 0x0 100 hangtracerd: Daily Log credits: 25 -> 24
2018-03-11 04:24:53.9378 -0700
0x687 1024 0x0 100 hangtracerd: SpringBoard: Hang detected 6.41s (UIKit-runloop)
2018-03-11 04:24:53.9381 -0700
0x687 1024 0x0 100 hangtracerd: SpringBoard: Attempting to save tailspin at /var/root/Library/Caches/hangtracerd/tmp/UIKit-runloop-SpringBoard-2018-03-11-042453.tailspin
2018-03-11 04:24:56.6531 -0700
0x687 1024 0x0 100 hangtracerd: SpringBoard: Moving tailspin to spool: /var/root/Library/Caches/hangtracerd/spool/UIKit-runloop-SpringBoard-2018-03-11-042453.tailspin
2018-03-11 04:24:56.6535 -0700
0x687 1024 0x0 100 hangtracerd: SpringBoard Log credits: 3 -> 2
2018-03-11 04:24:56.6535 -0700
0x687 1024 0x0 100 hangtracerd: Daily Log credits: 24 -> 23
2018-03-11 04:25:10.5716 -0700
0x935 1024 0x0 100 hangtracerd: refreshPreferences: Memory Logging Enabled
2018-03-11 04:25:10.5716 -0700
0x935 1024 0x0 100 hangtracerd: refreshPreferences: Hang Tracing Enabled
2018-03-11 04:25:10.5716 -0700
0x935 1024 0x0 100 hangtracerd: refreshPreferences: HangTracerEnableTailspin = 1
2018-03-11 04:25:10.5716 -0700
0x935 1024 0x0 100 hangtracerd: refreshPreferences: App Activation Logging Disabled
2018-03-11 04:36:33.0380 -0700
0x687 1024 0x0 100 hangtracerd: SpringBoard: Hang detected 1.25s (UIKit-runloop)
2018-03-11 04:36:33.0386 -0700
0x687 1024 0x0 100 hangtracerd: SpringBoard: Attempting to save tailspin at /var/root/Library/Caches/hangtracerd/tmp/UIKit-runloop-SpringBoard-2018-03-11-043633.tailspin

Hello Everyone!
I need to testing one xamarin application UI on various Devices (Android and IOS ). But I don't want to create thousands virtual Devices in Visual Studio and then testing UI on each of them. I heard, that Xamarin Test Cloud can help with it, but Im absolutely do not know how to start? Have any one some manual or simple Example ?
Thanks!

What is the file path of an embedded resource located in a directory inside a referenced NetStandard 2.0 class library ?
The UWP, Android, IoS applications have a reference to this common NetStandard class library and need to access such a file from it.

Hello!
I need your help, friends.
After upgrading Visual Studio for Mac to version 7.4 (build 1033), I had problems with the "Archive for Publishing" command for the iOS project.

As usual, I select the Release configuration and execute the "Archive for Publishing" command. The operation fails. In the text of the error, I see the following:

Metadata file '/Users/admin/projects/solution/project/pcl/bin/Debug/netstandard2.0/project.dll' could not be found

The archive refers to Debug project.dll!

In this case, the assembly in the release is completed successfully (the designated file is also missing physically).

What's happening?

We are developing a Xamarin UWP app that is supposed to receive Push Notifications using WNS. We are using Amazon SNS to send notifications. We made sure that the app is registering itself with proper channel uri to our backend, package name of the app is same as in the store and using cognito credential put device token entry in Amazon application arn. I have sent raw message to device endpoint and message recieved in device properly. We couldn't send as Json format and tried as mentioned in below link. But didn't know where to receive notification from application.

For example, ReceivedRemoteNotification as override method present in iOS and it will help process the notification. In my process sent argument then based an argument, we can navigate to different page. How can we do this in UWP using JSON format.

Please help me on this.

Reagrds,
Cheran

The XAML Button has an Image property which can be loaded with an image bundled with each OS version. This is not helpful for cross-platform development with hundreds of images. Can this image be loaded from an Embedded resource in the same way an Image Source can be set.

The following works great

<Image Source="{local:ImageResource XXX.Images.Tools.png}"/>        

But it cannot be used with

<Button Image="{local:FileImageResource XXX.Images.Tools.png}"/>    

Throws the following error when I call "FileImageSource.FromResource"

Cannot assign property "Image": type mismatch between "Xamarin.Forms.StreamImageSource" and "Xamarin.Forms.FileImageSource"

I'm trying to create new app from scratch using Visual Studio 2017 (15.5.6) & Xamarin (4.8.0.760). Through nuget I added reference of "EntityFramework Core" 2.0. I also added Sqlite related nuget packages in my .net standard projects.

I added my model classes and datacontext in .net standard project. Now I want to perform the migration and create the new database. Also, want to perform the subsequent migrations for any model related changes.

When I try to run migration using the command "dotnet ef migrations add ", get Build error.

error MSB4062: The "Xamarin.Forms.Build.Tasks.GetTasksAbi" task could not be loaded from the assembly C:\Users\.nuget\packages\xamarin.forms\2.5.0.280555\build\netstandard1.0\Xamarin.Forms.Build.Tasks.dll. Could not load file or assembly 'Microsoft.Build.Utilities.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'. The system cannot find the file specified. Confirm that the declaration is correct, that the assembly and all its dependencies are available, and that the task contains a public class that implements Microsoft.Build.Framework.ITask.

Build Failed.

From above log, can anybody suggest any fix in order to overcome this issue (though through visual studio when I build my code, it builds properly) and create migration?

Also, I looked for some working sample of EF Core 2.0 in Xamarin.Forms with migration but couldn't find any sample so far. All samples just shows the simple entity class which in turn create db upon run but not further migrations. This creates doubts in my mind whether migrations are supported yet or not?

Thanks,

The full error is:
Wrong state class, expecting View State but received class android.widget.ProgressBar$SavedState instead. This usually happens when two views of different type have the same id in the same hierarchy. This view's id is id/0x9. Make sure other views do not use the same id.

I'm seeing this error popping up a few times in Mobile Center (It's occurring on Android 5.1.1) - I don't suppose anyone has had luck tracking this down have they? The full stack trace is:

1
android.view.View.onRestoreInstanceState View.java:15063
2
android.widget.TextView.onRestoreInstanceState TextView.java:4574
3
android.view.View.dispatchRestoreInstanceState View.java:15039
4
android.view.ViewGroup.dispatchRestoreInstanceState ViewGroup.java:3198
5
android.view.ViewGroup.dispatchRestoreInstanceState ViewGroup.java:3198
6
android.view.ViewGroup.dispatchRestoreInstanceState ViewGroup.java:3198
7
android.view.ViewGroup.dispatchRestoreInstanceState ViewGroup.java:3198
8
android.view.ViewGroup.dispatchRestoreInstanceState ViewGroup.java:3198
9
android.view.ViewGroup.dispatchRestoreInstanceState ViewGroup.java:3198
10
android.view.ViewGroup.dispatchRestoreInstanceState ViewGroup.java:3198
11
android.view.ViewGroup.dispatchRestoreInstanceState ViewGroup.java:3198
12
android.view.ViewGroup.dispatchRestoreInstanceState ViewGroup.java:3198
13
android.view.ViewGroup.dispatchRestoreInstanceState ViewGroup.java:3198
14
android.view.ViewGroup.dispatchRestoreInstanceState ViewGroup.java:3198
15
android.view.ViewGroup.dispatchRestoreInstanceState ViewGroup.java:3198
16
android.view.View.restoreHierarchyState View.java:15017
17
com.android.internal.policy.impl.PhoneWindow.restoreHierarchyState PhoneWindow.java:2297
18
android.app.Activity.onRestoreInstanceState Activity.java:1203
19
android.app.Activity.performRestoreInstanceState Activity.java:1148
20
android.app.Instrumentation.callActivityOnRestoreInstanceState Instrumentation.java:1190
21
android.app.ActivityThread.performLaunchActivity ActivityThread.java:3106
22
android.app.ActivityThread.handleLaunchActivity ActivityThread.java:3243
23
android.app.ActivityThread.access$1000 ActivityThread.java:218
24
android.app.ActivityThread$H.handleMessage ActivityThread.java:1718
25
android.os.Handler.dispatchMessage Handler.java:102
26
android.os.Looper.loop Looper.java:145
27
android.app.ActivityThread.main ActivityThread.java:6914
28
java.lang.reflect.Method.invoke Method.java
29
java.lang.reflect.Method.invoke Method.java:372
30
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run ZygoteInit.java:1404
31
com.android.internal.os.ZygoteInit.main ZygoteInit.java:1199

[Xamarin.Forms 2.5.0.91635] I have a page which has a listview which contains an input entry and a label. My problem is that in Android, on tapping the first or second entry, the Keyboard appears. I want it to scroll the page down to select the last entry, but i cannot see (or focus) the last entry, because it's overlapped by soft keyboard. I cannot scroll to the last entry, because the soft keyboard hides the last entr(ies).

I searched on the internet and tried a lot but nothing works.

Solutions that didn't work:
https://gist.github.com/jimmgarrido/e36033b26f01e8da091fd321d41d991a
xamarinformscorner.blogspot.nl/2016/06/soft-keyboard-hiding-entries-fields-in.html
https://forums.xamarin.com/discussion/62668/appcompat-does-not-resize-screen-with-keyboard

XAML Code:

<ContentPage.Content>
        <ScrollView>
                <StackLayout x:Name="StackLayoutButtons" HorizontalOptions="Center" Orientation="Horizontal">
                    <Button x:Name="PreviousButton" WidthRequest="35" FontSize="23" FontAttributes="Bold" Clicked="PreviousButton_OnClicked"></Button>
                    <Button x:Name="DatePickerButton" FontSize="20" Clicked="DatePickerButton_OnClicked"></Button>
                    <DatePicker x:Name="DatePicker" Format="dddd d MMMM yyyy" VerticalOptions="Center" HorizontalOptions="FillAndExpand" IsVisible="False" IsEnabled="False"/>
                    <Button x:Name="NextButton" WidthRequest="35" FontSize="23" FontAttributes="Bold" Clicked="NextButton_OnClicked"></Button>
                    <Button x:Name="LastButton" WidthRequest="50" FontSize="23" FontAttributes="Bold" Clicked="LastButton_OnClicked"></Button>
                </StackLayout>

                <ListView x:Name="ListViewItemPage" ItemTapped="ListView_OnItemTapped">
                    <ListView.ItemTemplate>
                        <DataTemplate>
                            <ViewCell>
                                <RelativeLayout x:Name="RelativeLayout" >
                                    <Label x:Name="DescriptionLabel" Text="{Binding Description}"  RelativeLayout.YConstraint="{ConstraintExpression Type=RelativeToParent, Property=Y, Factor=0, Constant=15}" RelativeLayout.XConstraint="{ConstraintExpression Type=RelativeToParent, Property=X, Factor=0, Constant=15}" />
                                    <Entry x:Name="Entry" WidthRequest="85" Keyboard="Text" HorizontalTextAlignment="Start" FontSize="19" HorizontalOptions="Center" VerticalOptions="Center" Text="{Binding Value, Mode=TwoWay, Converter={StaticResource FloatValueConverter}}" Unfocused="ValueEntry_OnUnfocused"
                                           RelativeLayout.YConstraint="{ConstraintExpression Type=RelativeToParent, Property=Y, Factor=0, Constant=10}" RelativeLayout.XConstraint="{ConstraintExpression Type=RelativeToParent, Property=Width, Factor=1, Constant={StaticResource ConstantMultiPlatform}}" >
                                        <Entry.HeightRequest>
                                            <OnPlatform x:TypeArguments="x:Double">
                                                <On Platform="iOS" Value="28"></On>
                                                <On Platform="Android" Value="42"></On>
                                                <On Platform="UWP" Value="32"></On>
                                            </OnPlatform>
                                        </Entry.HeightRequest>
                                    </Entry>
                                </RelativeLayout>
                            </ViewCell>
                        </DataTemplate>
                    </ListView.ItemTemplate>
                </ListView>
            </StackLayout>
        </ScrollView>
    </ContentPage.Content>

See screenshots in the attachment

Hello ,
I am using https url and give an error (Trust Failure ) In HttpClient on Android.
I want to customize TrustManager for SSL. But i don't know how to implement TrustManager.

Any Advice Plz.
Thank You.

I would like to implement an interface that similar to list view adds or removes items as they are added to an underlying collection. The big picture is I will extend stack layout and then for each item in the Binding Context I want to add a new label to the stack layout. To do this I believe I can override OnBindingContextChanged so when the binding context is set I can initially add child items. And I think from there I can hook into the INotifyPropertyChanged event handler to get notified anytime a new item gets added to the collection. But overall this seems like it is a path that has many pitfalls so I was looking for a code sample of this but could not find one. Can anyone point me in the correct direction?

Hi,

I have below API from Twilio and I want to know how can utilize this curl using HttpClient so that I can use it in my app?

I need to pass parameters too, e.g. Body, From, To, etc..

curl 'https://api.twilio.com/2010-04-01/Accounts/ACxxxxxxxxxxxxxxxxx529d6d/Messages.json' -X POST \
-u ACxxxxxxxxxxxxxxxxx529d6d:[AuthToken]

I tried below code but getting:

/Users/jassim/Projects/TwilioTest/TwilioTest/TwilioTestPage.xaml.cs(62,62): Error CS1729: 'AuthenticationHeaderValue' does not contain a constructor that takes 3 arguments (CS1729) (TwilioTest)

public async Task<HttpResponseMessage> SendReq()
{
    var accountSid = "zzzzzzzzzzz";
    var authToken = "xxxxxxxxxxx";
    var targeturi = "https://api.twilio.com/2010-04-01/Accounts/{0}/SMS/Messages";
    string from = "+0000000000";
    string to = "WoWSender";
    string message = "Test Message";

    var client = new System.Net.Http.HttpClient();
    client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Basic", accountSid, authToken);
    // client.DefaultRequestHeaders.Authorization = CreateAuthenticationHeader("Basic", accountSid, authToken);

    var content = new StringContent(string.Format("From={0}&amp;To={1}&amp;Body={2}", from, to, message));
    content.Headers.ContentType = new MediaTypeHeaderValue("application/x-www-form-urlencoded");

    var response = await client.PostAsync(string.Format(targeturi, accountSid), content);
    if (response.IsSuccessStatusCode)
    {
        //the POST succeeded, so update the UI accordingly
    }
    else
    {
        //the POST failed, so update the UI accordingly
    }
    return response;
}

Thanks,

Jassim

Hello, I have a text and I want to make a word clickable in given text. How can I do it by using gesture recognizers?

I've got an Editor which is tall enough to accommodate multiple lines of input. The editor is at the bottom of the screen. Once multiple lines are entered, if you move the cursor up a line, the entire view shifts downward, so the line you just left is now obscured by the keyboard. I'd like it to not do this unless the line the cursor is on is either off screen or close to being off screen. Sort of like how the built in Android message app works. Here's what I mean in pictures.

Default state, everything looks good. We have 3 lines of input

I move the cursor up one line (either with keyboard arrow keys or just by dragging that purplish teardrop shaped handle upward): notice that the entire view has shifted down one line and so "line 3" is now obscured. I don't want this behavior (it among other things hides some UI elements).

This is the Android messaging app. This is the behavior I want: when you move the cursor to that next line, the view doesn't just shift downward. If you have enough lines to scroll past the visible area, Android just shifts the text and not the entire view to accommodate it.

What I noticed is that if I move my control up to like the middle of the screen instead of being at the bottom, then this behavior doesn't happen: moving the cursor upward doesn't scroll my editor until it's appropriate, like I want to. So why is it that because my editor is at the bottom of the screen, this behavior doesn't happen? The keyboard pans the entire screen upward.

I am trying to experiment with Native Forms in XF. I have this in iOS working right. That is fine.

In Android, I am getting the following error:

'MainPage' does not contain a definition for 'CreateSupportFragment' and the best extension method overload 'PageExtensions.CreateSupportFragment(ContentPage, Context)' requires a receiver of type 'ContentPage'

The code is erroring in the following code:
var _cp = new MainPage(); // my page from XF.
_list = _cp.CreateSupportFragment(this);

I have made sure that my nuget packages are up to date. I have cleaned and compiled. I've done a bunch of things, but alas, no love. Any ideas on this?

TIA

i made custom pin in xamarin map.

and make 20 custom pins.

but pins are move somtimes and disappear and appear.

Why custom pin move and disappear?

please help me...