Make a views Page Invisible !

Question

Make a views Page Invisible !

So i have a stream camera runing inside a views page , i want the camera be invsible in the views page , but it should keep runing and give data..
Any solutions "

Answer 1

Leon Lu (Shanghai Wicresoft Co,.Ltd.) 41,831 Microsoft Employee

Hello,

Welcome to our Microsoft Q&A platform!

If you use camera preview like this thread

https://learn.microsoft.com/en-us/xamarin/xamarin-forms/app-fundamentals/custom-renderer/view

You cannot make the views or page to invisble, but you can set the HeightRequest="1" and WidthRequest="1" make it to be small like this screenshot.

But if you navigate to other pages, this cameraview will be closed.

Best Regards,

Leon Lu

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Ahmed Wassim BEN SALEM (ENISo) 241 Reputation points

2021-04-12T12:03:59.607+00:00

@Leon Lu (Shanghai Wicresoft Co,.Ltd.) actually i am passing the camera stream to the views through a page render , you can check the screenshot
i attached to you the SetupUserInterface method
Leon Lu (Shanghai Wicresoft Co,.Ltd.) 41,831 Reputation points Microsoft Employee

2021-04-12T12:15:32.88+00:00

Change your matchParentParams to this code RelativeLayout.LayoutParams layoutParams = new RelativeLayout.LayoutParams(1,1);
Ahmed Wassim BEN SALEM (ENISo) 241 Reputation points

2021-04-12T12:22:10.953+00:00

@Leon Lu (Shanghai Wicresoft Co,.Ltd.) yes it works , fine . Now sir is there any solution for integrating this page (CameraPage) to another Page in my application
because i will use only one page (Dashboard Page) and i want the camera page alawys running
Leon Lu (Shanghai Wicresoft Co,.Ltd.) 41,831 Reputation points Microsoft Employee

2021-04-12T12:45:55.81+00:00

i want the camera page always running

You can create a custom view like this thread: https://learn.microsoft.com/en-us/xamarin/xamarin-forms/app-fundamentals/custom-renderer/view.

Then add this custom view to your Dashboard Page
Ahmed Wassim BEN SALEM (ENISo) 241 Reputation points

2021-04-12T12:50:48.597+00:00

I already created the custom view , now i am asking how to add this custom view to another page (Dashboard Page )
Ty

Leon Lu (Shanghai Wicresoft Co,.Ltd.) 41,831 Microsoft Employee

For example, your custom view called CameraPreview in xamarin.froms like following code.

public class CameraPreview : View
    {


    }

Then you can add this custom view to other pages with local:CameraPreview.

<?xml version="1.0" encoding="UTF-8"?>
<ContentPage xmlns="http://xamarin.com/schemas/2014/forms" 
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml" 
             xmlns:local="clr-namespace:CustomRenderer;assembly=CustomRenderer"
             x:Class="CustomRenderer.MainPage"
             Title="Main Page">
    <StackLayout Margin="20,35,20,20">

        <local:CameraPreview Camera="Rear"

                             HeightRequest="1"
                             WidthRequest="1"/>
    </StackLayout>
</ContentPage>

Ahmed Wassim BEN SALEM (ENISo) 241 Reputation points

2021-04-12T14:06:40.387+00:00

Hello Sir @Leon Lu (Shanghai Wicresoft Co,.Ltd.) , so i did as u told me . but there is a little error
the error is : "Property Content does not support values of type "LabelReaderPage" (Thats the page where is the camera is rendered "

ps : LabelReaderPage is a contentPage also not a view Page .

Make a views Page Invisible !

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