import android.os.CancellationSignal;
import android.os.Handler;
import android.os.IBinder;
-import android.support.v4.app.DialogFragment;
-import android.support.v4.app.Fragment;
-import android.support.v4.app.FragmentActivity;
-import android.support.v4.app.FragmentTransaction;
-import android.support.v4.print.PrintHelper;
+import androidx.fragment.app.DialogFragment;
+import androidx.fragment.app.Fragment;
+import androidx.fragment.app.FragmentActivity;
+import androidx.fragment.app.FragmentTransaction;
+import androidx.print.PrintHelper;
import android.util.DisplayMetrics;
import android.util.Log;
import android.util.TypedValue;