“Rebooting receiver” not working android [Xamarin.Android]

问题

I am trying to implement a broadcast receiver that gets the broadcast when the device has been rebooted, but is not working (it is supposed to send me a toast when the device has rebooted) with the following code:

Broadcast receiver:

    [BroadcastReceiver]
    public class RebootReceiver : BroadcastReceiver
    {
        public override void OnReceive(Context context, Intent intent)
        {
            if (Intent.ActionBootCompleted.Equals(intent.Action))
            {
                Toast.MakeText(
                    context,
                    "Your app has been rebooted!",
                    ToastLength.Long).Show();
            }
        }
    }

Manifest.xml

<receiver android:name=".RebootReceiver">
        <intent-filter>
          <action android:name="android.intent.action.BOOT_COMPLETED"></action>
        </intent-filter>
      </receiver>

And permission inside the manifest

<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>

Hope help, thanks

回答1:

I think there is a problem with your broadcast receiver follow these steps and see if it works:

Add the manifest entry for the boot permission

<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>

Add the receiver and use a full qualifed name:

<receiver android:name="com.yourpackagename.app.BootBroadcastReceiver">
      <intent-filter>
          <action android:name="android.intent.action.BOOT_COMPLETED"/>
      </intent-filter>
</receiver>

Add a Name parameter to the BroadcastReceiverAttribute for the fully qualified name that you used in the manifest

[BroadcastReceiver(Name = "com.yourpackagename.app.BootBroadcastReceiver", Enabled = true)]
[IntentFilter(new[] { Intent.ActionBootCompleted })]    
public class BootBroadcastReceiver : BroadcastReceiver
 {
    public override void OnReceive(Context context, Intent intent)
    {
        if (Intent.ActionBootCompleted.Equals(intent.Action))
        {
            Toast.MakeText(
                context,
                "Your app has been rebooted!",
                ToastLength.Long).Show();
        }
    }
}

Good luck feel free to get back if you have queries

回答2:

I have solved the problem, the answer of @FreakyAli has also helped in fact of getting the solution

Create Service:

[Service(Name = "com.companyname.app.RebootService")]
    public class RebootService : Service
    {
        public override void OnCreate()
        {
            base.OnCreate();
        }

        public override IBinder OnBind(Intent intent)
        {
            return null;
        }
        public override StartCommandResult OnStartCommand(Intent intent, StartCommandFlags flags, int startId)
        {
            Toast.MakeText(this, "Service STARTED!", ToastLength.Long).Show();
            return StartCommandResult.Sticky;
        }

        public override void OnDestroy()
        {
            base.OnDestroy();

            Toast.MakeText(this, "Service STOPED", ToastLength.Long).Show();
        }
    }
}

Create BroadcastReciver:

 [BroadcastReceiver(Enabled =true, Name ="com.companyname.Sortex.RebootReceiver")]
        [IntentFilter(new[] { Intent.ActionBootCompleted })]
        public class RebootReceiver : BroadcastReceiver
        {
            public override void OnReceive(Context context, Intent intent)
            {
            }
        }

<service android:name="com.companyname.app.RebootService"/>
<receiver android:name="com.companyname.app.RebootReceiver">
    <intent-filter>
        <action android:name="android.intent.action.BOOT_COMPLETED"/>
    </intent-filter>
</receiver>

Call the service on the OnReceive method of the Broadcast receiver:

Intent serviceIntent = new Intent(context, typeof(RebootService));
context.StartService(serviceIntent);

来源：https://stackoverflow.com/questions/60076532/rebooting-receiver-not-working-android-xamarin-android

标签

android

Xamarin

android-intent

xamarin.android

toast