android.support.v4.media.app.NotificationCompat.MediaStyle() and import android.support.v4.app.NotificationCompat; problems

Question

Hi i have problems when i try to update ( migration to andoridx, i added some pictures at the end of this post) my app, especialy in this code:

.setStyle(new android.support.v4.media.app.NotificationCompat.MediaStyle() .setMediaSession(service.getMediaSession().getSessionToken()) .setShowActionsInCompactView(0, 1) .setShowCancelButton(true) .setCancelButtonIntent(stopAction));

but when i try to update this:import android.support.v4.app.NotificationCompat; import android.support.v4.app.NotificationManagerCompat;

i have this in my build.grade:implementation 'com.android.support:appcompat-v7:28.0.0' implementation 'com.android.support.constraint:constraint-layout:1.0.2' implementation 'com.android.support:design:28.0.0' implementation 'com.android.support:support-v4:28.0.0' the problem comes when i try to use androidx.appcompat:appcompat:1.0.0 because the error says:

error: cannot find symbol class NotificationCompat and in the implement section, this go in grey colorimport android.support.v4.app.NotificationCompat; import android.support.v7.app.NotificationCompat; and says cannot resolve symbol NotificationCompat

I dont know how to solve this, if anyone knows, please tell me. Thanks for your time

more details

More details

Answer 1

• first of all: it's a migration problem to androidX
• don't make it manually
• androidstudio (3.5.1) has a migrate to androidX function:
  • right-click on root-folder of your project->Refactor->Migrate to AndroidX
  • more detailed instruction here: After upgrade android version getting "Duplicate class android.support.v4.app.INotificationSideChannel"