Click On Item To Appear Another Item Android

im new to this forum and new to android, i'm doing a project on my school and i need some help here, since im new to android i wanna know what type of component i should use to sho

Solution 1:

i think you are trying to get a expandable listview if yes

here it will be like

List<String> Colors = new ArrayList<String>();
    Colors.add("Red");
    Colors.add("Green");
    Colors.add("Blue");
    Colors.add("Maroon");
    Colors.add("Yellow");
    Colors.add("Violet");
    Colors.add("Pink");

here colors is a category where in if you click it will expand further

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