■ Application 클래스의 RequestedThemeChanged 이벤트를 사용해 현재 테마 변경시 처리하는 방법을 보여준다.
▶ Platforms/Android/MainActivity.cs
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using Android.App; using Android.Content.PM; using Android.OS; namespace TestProject; /// <summary> /// 메인 액티비티 /// </summary> [Activity(Theme = "@style/Maui.SplashTheme", MainLauncher = true, ConfigurationChanges = ConfigChanges.ScreenSize | ConfigChanges.Orientation | ConfigChanges.UiMode | ConfigChanges.ScreenLayout | ConfigChanges.SmallestScreenSize | ConfigChanges.Density)] public class MainActivity : MauiAppCompatActivity { } |
▶ MainPage.xaml
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<?xml version="1.0" encoding="utf-8" ?> <ContentPage x:Class="TestProject.MainPage" xmlns="http://schemas.microsoft.com/dotnet/2021/maui" xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"> <Label x:Name="label" HorizontalTextAlignment="Center" VerticalTextAlignment="Center" FontSize="48" /> </ContentPage> |
▶ MainPage.xaml.cs
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namespace TestProject; /// <summary> /// 메인 페이지 /// </summary> public partial class MainPage : ContentPage { //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MainPage() /// <summary> /// 생성자 /// </summary> public MainPage() { InitializeComponent(); Application application = Application.Current; application.RequestedThemeChanged += application_RequestedThemeChanged; Loaded += ContentPage_Loaded; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Private //////////////////////////////////////////////////////////////////////////////// Event #region 애플리케이션 요청 테마 변경시 처리하기 - application_RequestedThemeChanged(sender, e) /// <summary> /// 애플리케이션 요청 테마 변경시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void application_RequestedThemeChanged(object sender, AppThemeChangedEventArgs e) { ChangeTheme(e.RequestedTheme); } #endregion #region 컨텐트 페이지 로드시 처리하기 - ContentPage_Loaded(sender, e) /// <summary> /// 컨텐트 페이지 로드시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void ContentPage_Loaded(object sender, EventArgs e) { ChangeTheme(Application.Current.RequestedTheme); } #endregion //////////////////////////////////////////////////////////////////////////////// Function #region 테마 변경하기 - ChangeTheme(theme) /// <summary> /// 테마 변경하기 /// </summary> /// <param name="theme">테마</param> private void ChangeTheme(AppTheme theme) { if(theme == AppTheme.Light) { BackgroundColor = Colors.White; this.label.TextColor = Colors.Black; } else { BackgroundColor = Colors.Black; this.label.TextColor = Colors.White; } this.label.Text = theme.ToString(); } #endregion } |
