[C#/UWP] LockScreen 클래스 : SetImageFileAsync 정적 메소드를 사용해 잠금 화면 이미지 설정하기

■ LockScreen 클래스의 SetImageFileAsync 정적 메소드를 사용해 잠금 화면 이미지를 설정하는 방법을 보여준다.

▶ MainPage.xaml


<Page x:Class="TestProject.MainPage"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Background="{ThemeResource ApplicationPageBackgroundThemeBrush}"
    FontFamily="나눔고딕코딩"
    FontSize="16">
    <Grid Margin="10">
        <Grid.RowDefinitions>
            <RowDefinition Height="*"    />
            <RowDefinition Height="10"   />
            <RowDefinition Height="Auto" />
        </Grid.RowDefinitions>
        <Image Name="image" Grid.Row="0"
            Stretch="Uniform" />
        <Button Name="setButton" Grid.Row="2"
            HorizontalAlignment="Center"
            VerticalAlignment="Center"
            Width="100"
            Height="30"
            Content="설정" />
    </Grid>
</Page>

<Page x:Class="TestProject.MainPage"

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

Background="{ThemeResource ApplicationPageBackgroundThemeBrush}"

FontFamily="나눔고딕코딩"

FontSize="16">

<Grid.RowDefinitions>

</Grid.RowDefinitions>

<Image Name="image" Grid.Row="0"

Stretch="Uniform" />

<Button Name="setButton" Grid.Row="2"

HorizontalAlignment="Center"

VerticalAlignment="Center"

Width="100"

Height="30"

Content="설정" />

</Grid>

</Page>

▶ MainPage.xaml.cs


using System;
using Windows.Storage;
using Windows.Storage.Pickers;
using Windows.Storage.Streams;
using Windows.System.UserProfile;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml.Media.Imaging;

namespace TestProject
{
    /// <summary>
    /// 메인 페이지
    /// </summary>
    public sealed partial class MainPage : Page
    {
        //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor
        ////////////////////////////////////////////////////////////////////////////////////////// Public

        #region 생성자 - MainPage()

        /// <summary>
        /// 생성자
        /// </summary>
        public MainPage()
        {
            InitializeComponent();

            this.setButton.Click += setButton_Click;
        }

        #endregion

        //////////////////////////////////////////////////////////////////////////////////////////////////// Method
        ////////////////////////////////////////////////////////////////////////////////////////// Private

        #region 설정 버튼 클릭시 처리하기 - setButton_Click(sender, e)

        /// <summary>
        /// 설정 버튼 클릭시 처리하기
        /// </summary>
        /// <param name="sender">이벤트 발생자</param>
        /// <param name="e">이벤트 인자</param>
        private async void setButton_Click(object sender, RoutedEventArgs e)
        {
            FileOpenPicker picker = new FileOpenPicker
            {
                ViewMode               = PickerViewMode.Thumbnail,
                SuggestedStartLocation = PickerLocationId.PicturesLibrary,
                FileTypeFilter         = { ".jpg", ".jpeg", ".png", ".bmp" }
            };

            StorageFile file = await picker.PickSingleFileAsync();

            if(file != null)
            {
                try
                {
                    await LockScreen.SetImageFileAsync(file);

                    IRandomAccessStream stream = LockScreen.GetImageStream();

                    if(stream != null)
                    {
                        BitmapImage bitmapImage = new BitmapImage();

                        bitmapImage.SetSource(stream);

                        this.image.Source = bitmapImage;
                    }
                    else
                    {
                        this.image.Source = null;
                    }
                }
                catch(Exception)
                {
                    this.image.Source = null;
                }
            }
            else
            {
                this.image.Source = null;
            }
        }

        #endregion
    }
}

using System;

using Windows.Storage;

using Windows.Storage.Pickers;

using Windows.Storage.Streams;

using Windows.System.UserProfile;

using Windows.UI.Xaml;

using Windows.UI.Xaml.Controls;

using Windows.UI.Xaml.Media.Imaging;

namespace TestProject

{

/// <summary>

/// 메인 페이지

/// </summary>

public sealed partial class MainPage : Page

{

//////////////////////////////////////////////////////////////////////////////////////////////////// Constructor

////////////////////////////////////////////////////////////////////////////////////////// Public

#region 생성자 - MainPage()

/// <summary>

/// 생성자

/// </summary>

public MainPage()

{

InitializeComponent();

this.setButton.Click += setButton_Click;

}

#endregion

//////////////////////////////////////////////////////////////////////////////////////////////////// Method

////////////////////////////////////////////////////////////////////////////////////////// Private

#region 설정 버튼 클릭시 처리하기 - setButton_Click(sender, e)

/// <summary>

/// 설정 버튼 클릭시 처리하기

/// </summary>

/// <param name="sender">이벤트 발생자</param>

/// <param name="e">이벤트 인자</param>

private async void setButton_Click(object sender, RoutedEventArgs e)

{

FileOpenPicker picker = new FileOpenPicker

{

ViewMode = PickerViewMode.Thumbnail,

SuggestedStartLocation = PickerLocationId.PicturesLibrary,

FileTypeFilter = { ".jpg", ".jpeg", ".png", ".bmp" }

};

StorageFile file = await picker.PickSingleFileAsync();

if(file != null)

{

try

{

await LockScreen.SetImageFileAsync(file);

IRandomAccessStream stream = LockScreen.GetImageStream();

if(stream != null)

{

BitmapImage bitmapImage = new BitmapImage();

bitmapImage.SetSource(stream);

this.image.Source = bitmapImage;

}

else

{

this.image.Source = null;

}

catch(Exception)

{

this.image.Source = null;

}

else

{

this.image.Source = null;

}

#endregion

}

TestProject.zip