How to add ExpandableListView in android?
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 ExpandableListView?
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. The items come from the ExpandableListAdapter associated with this view.
How do you get a child position in ExpandableListView?
2 Answers. You have to use Adapter’s getChild(groupPosition, childPosition) method to retrieve the instance of child.
Which of the following adapters are used in Android for supplying data in an ExpandableListView?
BaseExpandableListAdapter is a base class for the expandable list adapter used to provide data and Views from some data to ExpandableListView.
How do you make an expandable list in flutter?
First Make an ExpandableContainer using AnimatedContainer. Then Make an ExpandableListView which will create a Column . The first child of Column will be a button to expand and Second will be ExpandableContainer . ExpandableContainer will have a ListView as its child.
What is the RecyclerView in Android?
RecyclerView is the ViewGroup that contains the views corresponding to your data. It’s a view itself, so you add RecyclerView into your layout the way you would add any other UI element. Each individual element in the list is defined by a view holder object.
Can I use expanded in ListView flutter?
In this tutorial, We are going to learn how we can create expandable listview in flutter applications. Expandable listview is used to expand or collapse view in list items. When we have not enough space to display all data then expandable listview is best option.
What is card in flutter?
A card is a sheet used to represent the information related to each other, such as an album, a geographical location, contact details, etc. A card in Flutter is in rounded corner shape and has a shadow. We mainly used it to store the content and action of a single object.
How do I setup a RecyclerView?
Using a RecyclerView has the following key steps:
- Define a model class to use as the data source.
- Add a RecyclerView to your activity to display the items.
- Create a custom row layout XML file to visualize the item.
- Create a RecyclerView.
- Bind the adapter to the data source to populate the RecyclerView.
What is expandablelistview in Salesforce?
An ExpandableListView is a view that shows items in a vertically scrolling two-level list. You can imagine it’s a form of a ListView given the name or the fact that it derives from it, however ExpandableListView is obviously more complex in that it’s view items can be expanded and collapsed.
How to create an expandable list view in Java?
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 are the methods of expandexpandablelistviewadapter in Android?
ExpandableListViewAdapter in android loads the data into the items associated with this view. Following are some important methods that are used by this class : setChildIndicator(Drawable) : This is used to show an indicator besides each item representing the current state.
How to display data in an expandablelistadapter?
To display data in it, you need to create an ExpandableListAdapter, and then override it’s several methods to provide group view item an child view item. 1.