CODEWITHSUNDEEP
androidformsxamarinpermissionscamera
Tom Wilson
Tom Wilson

Reputation: 53

How to give permissions to xamarin camera

I wanted to add camera to my xamarin form app. I watched this video. https://www.youtube.com/watch?v=DJYLrVNY2ak&t=645s

After all the work, I get permission errors.

Error says:

Unhandled Exception: Plugin.Media.Abstractions.MediaPermissionException: Camera permission(s) are required

This code is on MainPage.xaml.cs

    using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Xamarin.Forms;
using Plugin.Media.Abstractions;
using Plugin.Media;
using Plugin.Permissions;
using Plugin.Permissions.Abstractions;

namespace camera
{
    public partial class MainPage : ContentPage
    {
        public MainPage()
        {
            InitializeComponent();
        }

        private async void Button_Clicked(object sender, EventArgs e)
        {


            await CrossMedia.Current.Initialize();

            if (!CrossMedia.Current.IsCameraAvailable
                || !CrossMedia.Current.IsTakePhotoSupported)
            {
                await DisplayAlert("No Camera", "No Camera available", "Ok");
                return;
            }

            var file = await CrossMedia.Current.TakePhotoAsync(

                new StoreCameraMediaOptions
                {

                    SaveToAlbum = true,

                });

            if (file == null)
                return;

            PathLabel.Text = file.AlbumPath;

            MainImage.Source = ImageSource.FromStream(() =>
            {
                var stream = file.GetStream();
                file.Dispose();
                return stream;


            });




        }
    }
}

And this code is on MainPage.xaml

<?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:camera"
             x:Class="camera.MainPage">

    <StackLayout>
        <!-- Place new controls here -->
        <Label Text="Welcome to Xamarin.Forms!" 
           HorizontalOptions="Center"
           VerticalOptions="CenterAndExpand" />

        <Button Text="Take a Photo"
                Clicked="Button_Clicked">

        </Button>

        <Image x:Name="MainImage"></Image>
        <Label x:Name="PathLabel"></Label>


    </StackLayout>

</ContentPage>

The emulator open up fine. When I click "Take a Photo" button. I get permission error.

This is error image. Error image

Here is link to file. You can download the file and have a look at the error. All I want this app to do is take some details, take picture and save picture. LINK TO FILE https://contedia-my.sharepoint.com/personal/muhammad_ikram_contedia_com/_layouts/15/onedrive.aspx?id=%2Fpersonal%2Fmuhammad%5Fikram%5Fcontedia%5Fcom%2FDocuments%2FPhotos%20%282%29%2Ezip&parent=%2Fpersonal%2Fmuhammad%5Fikram%5Fcontedia%5Fcom%2FDocuments&slrid=6f5b859e-50d6-0000-25d8-0fa7f8d3f9ce

Upvotes: 2

Views: 12526

Answers (3)

Olaitan Adeboye
Olaitan Adeboye

Reputation: 172

Add this line to your MainActivity in Android

CrossCurrentActivity.Current.Init(this, savedInstanceState);

Add these lines to your code AsseblyInfo

[assembly: UsesFeature("android.hardware.camera", Required = false)] [assembly: UsesFeature("android.hardware.camera.autofocus", Required = false)]

Upvotes: 1

Valentin Peta
Valentin Peta

Reputation: 49

Short answer: Check if the permissions are granted to the app from Settings->Apps->YOUR_APP_NAME->Permissions.

Long answer: What I noticed is even using the information from the other answers I still get the same error, so I checked the permissions for the app in Settings->Apps->YOUR_APP_NAME->Permissions and I saw that even though I was given camera access to the app when the pop-up appeared, here I still had no permissions granted to the app. So after I turned the permission on from here everything worked fine.

Upvotes: 0

user8013875
user8013875

Reputation: 92

I had also exception Camera permission(s) are required. Try add following code to MainActivity to OnCreate() method. It should ask user for camera permission – you should see alert on device

        int requestPermissions;
        string cameraPermission = Android.Manifest.Permission.Camera;

        if (!(ContextCompat.CheckSelfPermission(this, cameraPermission) == (int)Permission.Granted))
        {
            ActivityCompat.RequestPermissions(this, new String[] { cameraPermission, }, requestPermissions);
        }

And put following into android manifest (or check the checkbox)

<uses-permission android:name="android.permission.CAMERA" />

Maybe following link could also be helpful - https://learn.microsoft.com/cs-cz/xamarin/android/app-fundamentals/permissions?tabs=vswin

Upvotes: 0

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