ahmedashrafg / expandableselectionview Goto Github PK

val genders = listOf(
    "Male",
    "Female",
    "Prefer not to specify"
)
// Provide a list of strings and an optional hint
val expandableAdapter = BasicStringAdapter(genders, "Select Gender..")

// Set the adapter to the component
singleSelectionView.setAdapter(expandableAdapter)

// Listen for selections
singleSelectionView.selectionListener = { index: Int? ->
    Toast.makeText(this, "SelectedIndex is $index", Toast.LENGTH_SHORT).show()
}
// Or in case of the ExpandableMultiSelectionView
multiSelectionView.selectionListener = { indices: List<Int>? ->
    Toast.makeText(this, "SelectedIndices are $indices", Toast.LENGTH_SHORT).show()
}

// To get the selected index at any time
val selectedIndex = singleSelectionView.selectedIndex

// Or in case of the ExpandableMultiSelectionView
val selectedIndices = multiSelectionView.selectedIndices

// To clear your selection
singleSelectionView.clearSelection()

// Or in case of the ExpandableMultiSelectionView
multiSelectionView.clearSelection()
// Or
multiSelectionView.unSelectIndex(1)
// Or
multiSelectionView.unSelectIndices(listOf(1, 2, 3))

// To select an index programmatically
singleSelectionView.selectIndex(1)
// Or in case of the ExpandableMultiSelectionView
multiSelectionView.selectIndex(1)
// Or
multiSelectionView.selectIndices(listOf(1, 2, 3))
/** Note: 
* All selectIndex/Indices functions have an optional parameter that controls notifying the listener
* (notifyListener: Boolean = true)
**/

// Set the component's state
singleSelectionView.setState(ExpandableSelectionView.State.Expanded)

// Set an error to be shown at the bottom of the component (useful in form validation)
singleSelectionView.setError("Please select your gender")
// Or clear it
singleSelectionView.setError(null)

class CustomExpandableItemAdapter : ExpandableItemAdapter {
    override fun inflateHeaderView(parent: ViewGroup): View {
        TODO("Inflate your own header view, and maybe set a hint or a placeholder or something?")
    }

    override fun inflateItemView(parent: ViewGroup): View {
        TODO("Inflate your item view")
    }

    override fun bindItemView(itemView: View, position: Int, selected: Boolean) {
        TODO("This is where you bind your item using it's position and it's selection state," +
                "maybe bind it's info and show/hide it's selection mark?")
    }

    override fun bindHeaderView(headerView: View, selectedIndices: List<Int>) {
        TODO("This is where you bind your header view," +
                "maybe using the selectedIndices to replace the placeholder/hint?")
    }

    override fun onViewStateChanged(headerView: View, state: ExpandableSelectionView.State) {
        TODO("This is where you react to a state change," +
                "maybe you want to toggle a collapsed/expanded drawable?")
    }

    override fun getItemsCount(): Int {
        TODO("This is where you provide the exact number of items expected to be shown.")
    }
}