Getting sensors list?

[Kumaraswamy]

You can directly do that, you can refer more

Cannot find symbol error in extension

From 2 days, I am trying to fix this problem but could not do. I get error that cannot find symbol in one line, I have done all the necessary imports but the same Every line goes right but this line doesn't : - NotificationManager notificationManager = (NotificationManager) getApplicationContext().getSystemService(Context.NOTIFICATION_SERVICE); My imports in extension import android.content.Context; import android.app.Application; And other imports... And here is the error code :…

@MohamedTamer

You should define The Context variable on order to use it:

Or you can use this way.