Kamera használatához alapok

2025-02-24 13:39:05 +01:00
parent f3ef12ccc4
commit 5396fc0dcb
7 changed files with 151 additions and 5 deletions
@@ -0,0 +1,78 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
+             xmlns:toolkit="http://schemas.microsoft.com/dotnet/2022/maui/toolkit"
+             x:Class="WorkFlowCheck.MAUI.Pages.Media.CaptureImagePage"
+             Title="CaptureImagePage">
+    <Grid RowDefinitions="200,*,Auto,Auto" ColumnDefinitions="3*,*">
+        <toolkit:CameraView
+            x:Name="Camera"
+            Grid.Column="0" Grid.Row="0" Grid.ColumnSpan="2" Grid.RowSpan="3"
+            CameraFlashMode="{Binding FlashMode}"
+            ZoomFactor="{Binding CurrentZoom}"
+            ImageCaptureResolution="{Binding SelectedResolution}"
+            SelectedCamera="{Binding SelectedCamera}"/>
+
+        <Grid Grid.Column="0" Grid.Row="0" RowDefinitions="Auto" BackgroundColor="#80CCCCCC">
+
+            <VerticalStackLayout Spacing="5" Padding="5" >
+                <Label Text="{Binding CameraNameText}" />
+                <Label Text="{Binding FlashModeText}" />
+                <Label Text="{Binding ZoomRangeText}" />
+                <Label Text="{Binding CurrentZoomText}" />
+                <Label Text="{Binding ResolutionText}" />
+                <Picker 
+                    Title="Available Resolutions"
+                    ItemsSource="{Binding SelectedCamera.SupportedResolutions, FallbackValue=''}"
+                    SelectedItem="{Binding SelectedResolution}" />
+                <Label x:Name="debugText"/>
+
+            </VerticalStackLayout>
+        </Grid>
+
+        <ContentView Grid.Column="1" Grid.Row="0" ZIndex="100" BackgroundColor="#80CCCCCC">
+            <Image x:Name="image" VerticalOptions="Fill" HorizontalOptions="Fill">
+                <Image.GestureRecognizers>
+                    <TapGestureRecognizer Tapped="OnImageTapped" />
+                </Image.GestureRecognizers>
+            </Image>
+        </ContentView>
+
+        <Grid ColumnDefinitions="Auto,*,Auto"  Grid.Column="0" Grid.ColumnSpan="2" Grid.Row="2" ColumnSpacing="10" Margin="10"
+              BackgroundColor="#00000000">
+            <Button Clicked="ZoomOut" Text="Zoom -" Grid.Column="0"/>
+
+            <Slider 
+                x:Name="slider" Grid.Column="1"
+                Value="{Binding CurrentZoom}"
+                Maximum="{Binding SelectedCamera.MaximumZoomFactor, FallbackValue=1}"
+                Minimum="{Binding SelectedCamera.MinimumZoomFactor, FallbackValue=1}"/>
+
+            <Button Clicked="ZoomIn" Text="Zoom +" Grid.Column="2"/>
+        </Grid>
+
+        <Grid Grid.Column="0" Grid.ColumnSpan="2" Grid.Row="3" BackgroundColor="#80CCCCCC">
+
+            <FlexLayout Margin="5" JustifyContent="SpaceBetween" Wrap="Wrap">
+
+                <Picker 
+                    Title="Flash"
+                    IsVisible="{Binding Path=SelectedCamera.IsFlashSupported, FallbackValue=false}"
+                    ItemsSource="{Binding FlashModes}"
+                    SelectedItem="{Binding FlashMode}" />
+
+                <Button Command="{Binding CaptureImageCommand, Source={x:Reference Camera}, x:DataType=toolkit:CameraView}" 
+                        CommandParameter="{Binding Token}"
+                        Text="Capture Image"/>
+                <Button Command="{Binding StartCameraPreviewCommand, Source={x:Reference Camera}, x:DataType=toolkit:CameraView}"
+                        CommandParameter="{Binding Token}"
+                        Text="StartCameraPreview" />
+
+                <Button Command="{Binding StopCameraPreviewCommand, Source={x:Reference Camera}, x:DataType=toolkit:CameraView}" 
+                        Text="StopCameraPreview" />
+
+            </FlexLayout>
+        </Grid>
+
+    </Grid>
+</ContentPage>
@@ -0,0 +1,40 @@
+namespace WorkFlowCheck.MAUI.Pages.Media;
+using Microsoft.Maui.Media;
+
+
+public partial class CaptureImagePage : ContentPage
+{
+	public CaptureImagePage()
+	{
+		InitializeComponent();
+	}
+
+    public string PhotoPath { get; private set; }
+
+    private async Task TakePhotoAsync()
+    {
+        if (MediaPicker.Default.IsCaptureSupported)
+        {
+            FileResult photo = await MediaPicker.Default.CapturePhotoAsync();
+
+            if (photo != null)
+            {
+                // A kép elérési útja
+                string localFilePath = Path.Combine(FileSystem.CacheDirectory, photo.FileName);
+
+                // A kép mentése a helyi fájlrendszerbe
+                using Stream sourceStream = await photo.OpenReadAsync();
+                using FileStream localFileStream = File.OpenWrite(localFilePath);
+                await sourceStream.CopyToAsync(localFileStream);
+
+                // Esetleg megjelenítheted az UI-ban
+                PhotoPath = localFilePath;
+            }
+        }
+        else
+        {
+            await Application.Current.MainPage.DisplayAlert("Hiba", "A kamerához való hozzáférés nem támogatott.", "OK");
+        }
+    }
+
+}