blu*_*nce 7 android foreground-service maui .net-maui
我正在尝试在 MAUI 中(使用 .NET 6)为 Android 应用程序创建一个前台服务,但目前没有关于实现此目的的教程(我可以找到)。
添加前台服务的最佳起点是什么,或者如何创建它?
Liy*_*SFT 11
您可以创建ForegroundService\Platform\Android,然后在page.cs中启动它。
我已经做了一个示例并启动成功,你可以尝试一下。
在\Platform\Android\ForegroundServiceDemo中:
namespace MauiAppTest.Platform.Android
{
[Service]
public class ForegroundServiceDemo : Service
{
private string NOTIFICATION_CHANNEL_ID = "1000";
private int NOTIFICATION_ID = 1;
private string NOTIFICATION_CHANNEL_NAME = "notification";
private void startForegroundService()
{
var notifcationManager = GetSystemService(Context.NotificationService) as NotificationManager;
if (Build.VERSION.SdkInt >= BuildVersionCodes.O)
{
createNotificationChannel(notifcationManager);
}
var notification = new NotificationCompat.Builder(this, NOTIFICATION_CHANNEL_ID);
notification.SetAutoCancel(false);
notification.SetOngoing(true);
notification.SetSmallIcon(Resource.Mipmap.appicon);
notification.SetContentTitle("ForegroundService");
notification.SetContentText("Foreground Service is running");
StartForeground(NOTIFICATION_ID, notification.Build());
}
private void createNotificationChannel(NotificationManager notificationMnaManager)
{
var channel = new NotificationChannel(NOTIFICATION_CHANNEL_ID, NOTIFICATION_CHANNEL_NAME,
NotificationImportance.Low);
notificationMnaManager.CreateNotificationChannel(channel);
}
public override IBinder OnBind(Intent intent)
{
return null;
}
public override StartCommandResult OnStartCommand(Intent intent, StartCommandFlags flags, int startId)
{
startForegroundService();
return StartCommandResult.NotSticky;
}
}
}
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在 page.cs 中:
private void OnStartServiceClicked(object sender, EventArgs e)
{
#if ANDROID
Android.Content.Intent intent = new Android.Content.Intent(Android.App.Application.Context,typeof(ForegroundServiceDemo));
Android.App.Application.Context.StartForegroundService(intent);
#endif
}
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最后在AndroidManifest.xml中添加前台服务权限:
<uses-permission android:name="android.permission.FOREGROUND_SERVICE"/>
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