How to open the first group in ExpandableListView program?

 expList = (ExpandableListView) findViewById(R.id.expList); expList.setGroupIndicator(null); expList.setAdapter(adapter); expList.expandGroup(0); 

in the end, does not reveal the first group when the application is launched, I use the custom adapter from this question

  • Do you have clickable widgets in the group markup? buttons, checkboxes, input fields, and so on.? - pavlofff
  • No, only ImageView and TextView - Veronica
  • And when pressed with a finger unfolds? I can't reproduce the problem in my room - pavlofff
  • Yes, it is revealed. On the emulator I checked. - Veronica

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