Posts by BrianSouza • 390 points
21 posts
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answer56
viewsA: How to Save Simple Application Locations Data?
James Montemagno made a plugin that might help you: Settings Plugin .
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answer86
viewsA: Xamarin-Forms - Listview expansive
I believe Expandable listview is what you want. Look at this Link and if it helps you.…
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answer648
viewsA: How to read a JSON Object Array with Xamarin Android Newtonsoft.Json
I don’t know if I understand what you want to do, but you can convert your entire string into the class that represents it: var root = JsonConvert.DeserializeObject<RootObject>(stringRoot);…
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answer559
viewsA: Change color of Listview item in Xamarin according to database data
I think you should customize the Adapter and do something like this in Getview: public override View GetView(int position, View convertView, ViewGroup parent) { if(convertView == null) { convertView…
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answer202
viewsA: Delete listview item in Xamarin
Well, I think I can try some of the points I’m going to list below: Make sure your Adapter has an overload to use an Observablecollection instead of the List, as the observablecollection will notify…
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answer148
viewsA: Refresh in a View from a Viewmodel
Dude, I haven’t had to do anything like this for Xamarin.Ios specifically and if I get it you want the button to be active or not according to the validation of it, right ? if so it would not be the…
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answers677
viewsA: IOS emulator to test my project
As Felipe described, you need a mac. You have cloud services like macincloud. MAC Virtual Machine is not a legally feasible option. So either you use a Physical MAC or a cloud MAC. You won’t be able…
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answers203
viewsA: Communication between Code Behind and Viewmodel Xamarin
I went through a similar situation, I had 4 pages that together filled a same entity (of orders), the solution I used at the time was to save the data of each page in a txt and go rescuing on the…
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answer358
viewsA: Xzing with Xamarin Forms
In the android project you added this excerpt in Activity ? ZXing.Net.Mobile.Forms.Android.Platform.Init(); And override the Onrequestpermissionsresult method ? public override void…
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answer102
viewsA: Xamarin Forms with Azure
I’m also doing the marathon. You added the HTTP client reference to your projects (including PCL) ? If not, try adding and see if the problem continues.
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answer155
viewsA: Place image in Picker Xamarin Forms
Hello, Andreeh. With the standard Picker you won’t be able to. You’ll need to develop a Bindable Picker to have the effect you want. I personally have never made a Picker that uses image, but I can…
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answers582
viewsA: Navigation with Xamarin Forms standard MVVM
By definition I believe that navigation should be done in your VM, your View should only be used for layout purposes. Of course this is not a rule and if you need to use something in your View for…
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answers34005
viewsA: Is there an iOS emulator to test an application developed in Xamarin?
If you have a MAC, in visual studio there is a Simulator that mirrors the emulator of your MAC. There is no way to compile an Ios app without mac. If you have a mac, in visual studio go to Tools/…
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answers144
viewsA: Do not show the items in the list after registration
Another thing, you are instantiating the refections parameter within your Registry. public CadastroRefeicao(ObservableCollection<Refeicao> refeicoes) { refeicoes = new…
xamarinanswered BrianSouza 390 -
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answers144
viewsA: Do not show the items in the list after registration
Good afternoon, your code is a bit confusing but... Your Binding is with the Refeicoes property that is filled through a constructor, put a break point in that constructor and see the moments when…
xamarinanswered BrianSouza 390 -
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answer380
viewsA: Problems in Master Detail navigation in Xamarin Forms
Hello. From what I see you’re trying to use addiction injection, right ? You remembered to register your classes/interfaces ? If not, try to register them before using. Register in your App() class…
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answer607
viewsA: How to open a local file with Xamarin?
Ronaldo, I don’t understand if this is what you want, but when I have to access a certain folder I use the following code: var documentsPath =…
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answers1341
viewsA: Update Listview after return with Popasync in Xamarin Forms
Override the Onappearing method in your view. For example: protected override void OnAppearing() { base.OnAppearing(); lstParceiro.SelectedItem = null; AtualizarLista(); } In this case I have…
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viewsA: How to access view components that are inside a Listview Xamarin Forms
wouldn’t it be better to use the Styles concept to define this type of property ? that way you can even reuse your layout. For example, in my app I have a listview that I need a specific layout,…
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answers248
viewsA: How does development work for Xamarin?
If I want to create an app in Xamarin for Ios, I’m obliged to have a Mac? You must need a mac, be it a physical or a cloud. That’s because the Xamarin.Ios build is Ahead of Time (AOT) and there’s a…
xamarinanswered BrianSouza 390 -
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answer216
viewsQ: Special characters Webservice C# SQL X Base Firebird
I have an integration made by Web-service (asmx) , C# e SQL Server. This Web-Service is consumed by a third-party software that uses Delphi and Firebird. The problem is that when integrating a…