collapsing, expandable regions / content? tutorial is not working. help!

Jolene Malich shared this question 5 years ago

Hello i just want to have a collapsing region for my app prototype. there should be a name and + ... if i press the + i want more content to come ... when the content is expanded the plus should turn into a - .... if i press the minus the content should disappear again. hope anyone can help me... the tutorial from the website doesn't work :-( thanks for your help