How do you show an expandable list?

How do you show an expandable list?

In order to create an expandable list view, we need three xml layout files. First one is for main listview, 2nd one for list view group item and 3rd one is for list view child item. Open your activity_main. xml and add ExpandableListView element.

What is Expandable list?

Android ExpandableListView is a view that is used to shows items as a vertically scrolling two-level list. The basic difference with ListView is it allows two levels of the display which are groups that can be easily expanded and collapsed by touching to view and their respective children’s items.

How do you make an expandable list in Python?

Extending a list in python can be done is following ways:

1. Using append() function: We can append at the end of the list by using append() function.
2. Using ‘+’ operator: We can add values by using the “+” operator.
3. Using slicing: Using slicing in python, single or multiple values can be added to a list.

What is Expandable ListView in android?

android.widget.ExpandableListView. A view that shows items in a vertically scrolling two-level list. This differs from the ListView by allowing two levels: groups which can individually be expanded to show its children.

How do I make my Recyclerview expandable?

Steps To Create Expandable Recyclerview

1. Adding Dependencies.
2. Prepare data for the recyclerview.
3. Design Header & child items layout for expandable recyclerview.
4. set data into expandable recyclerview.

What is expandable list view?

Android ExpandableListView is a view that shows items in a vertically scrolling two-level list. It differs from a ListView by allowing two levels which are groups that can be easily expanded and collapsed by touching to view and their respective children items.

How do I make my RecyclerView expandable?

What is extend () in Python?

extend() is a built-in Python function that adds the specified list elements (or any iterable) to the end of the current list. For example, the extend() method appends the contents of seq to the list. It extends the list by adding all list elements (passed as an argument) to the end.

What is expandable RecyclerView?

Expandable RecyclerView is one of the most important feature in Android which can be easily created for our application . It contains two views one is parent view and other is child view. Parent is visible by default but the child view has to be expanded and collapsed. It will expand when we click on parent view.

How do I create an expandable list in navigation drawer?

If you want to achieve above behavior to your NavigationDrawer you can follow below steps:

1. You have to add Expandable listview to your NavigationView.
2. Create Header View.
3. Create Child View.
4. Extend BaseExpandableListAdapter.
5. Set Adapter in MainActivity.