Maui使用Serilog

在builder中添加

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var builder = MauiApp.CreateBuilder();
    builder
        .UseMauiApp<App>()
        .ConfigureFonts(fonts =>
        {
            fonts.AddFont("OpenSans-Regular.ttf", "OpenSansRegular");
            fonts.AddFont("OpenSans-Semibold.ttf", "OpenSansSemibold");
        })
        .Logging.AddSerilog(Log.Logger);

        //注意将模板中的代码禁掉
        //#if DEBUG
    	//builder.Logging.AddDebug();            
    	//#endif

在其他任意位置实例化Log.Logger

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Log.Logger = new LoggerConfiguration()
        //.MinimumLevel.Debug()
        .WriteTo.File(path)
        .WriteTo.AppCenterCrashes(restrictedToMinimumLevel: LogEventLevel.Information)
        .WriteTo.Console()
        .CreateLogger();

从配置文件

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Log.Logger = new LoggerConfiguration()
        .ReadFrom.Configuration(configuration)
        .CreateLogger();

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// 兼容跨平台
var options = new ConfigurationReaderOptions(typeof(MauiProgram).Assembly, typeof(SerilogExpression).Assembly);
services.AddSerilog(config => { new LoggerConfiguration().ReadFrom.Configuration(configuration, options); });

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#if ANDROID
                var logDirectory = Android.App.Application.Context.GetExternalFilesDir(null);
                if (logDirectory != null)
                {
                    var logger = new LoggerConfiguration()
                    .WriteTo.File(Path.Combine(logDirectory.AbsolutePath, "log.txt"), Serilog.Events.LogEventLevel.Verbose, rollingInterval: RollingInterval.Day)
                    .CreateLogger();
                    services.AddSerilog(logger);
                }
#else
                services.AddSerilog(new LoggerConfiguration().ReadFrom.Configuration(configuration).CreateLogger());
#endif