[Android] Alert dialog

Alert Dialog

public class SampleDialog extends DialogFragment {

    @NonNull
    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {
        View view = getActivity().getLayoutInflater().inflate(R.layout..... , null);

        return new AlertDialog.Builder(getActivity())
                .setView(view)
                .setTitle(R.string.....)
                .setPositiveButton(android.R.string.ok, null)
                .create();
    }
}

SomeClass.class

import android.support.v4.app.FragmentManager;

...............


public class SomeClass extends Fragment{

   private static final String DIALOG_TAG = "sometag";

   .............

   //call the alert dialog

   FragmentManager fm = getActivity().getSupportFragmentManager();
   SampleDialog dialog = new SampleDialog();
   dialog.show(fm, DIALOG_TAG);

   ..............


}