API Reference
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Android Widgets
/
Filter Numeric Comparison
Sep. 02, 2020
Filter Numeric Comparison
Widget signature
FilterComparisonConnector<T>(
filterState: FilterState,
attribute: Attribute,
operator: NumericOperator,
number: T?,
groupID: FilterGroupID
) where T : Number, T : Comparable<T>
About this widget
Filter Numeric Comparison is a view to filter on a numeric value using a comparison operator.
Examples
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class MyActivity : AppCompatActivity() {
val client = ClientSearch(
ApplicationID("YourApplicationID"),
APIKey("YourAPIKey")
)
val index = client.initIndex(IndexName("YourIndexName"))
val searcher = SearcherSingleIndex(index)
val filterState = FilterState()
val price = Attribute("price")
val operator = NumericOperator.GreaterOrEquals
val filterComparison = FilterComparisonConnector<Long>(
filterState = filterState,
attribute = price,
operator = operator
)
val connection = ConnectionHandler(filterComparison, searcher.connectFilterState(filterState))
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
val priceView: NumberView<Long> = MyFilterPriceView() // your `NumberView<T>` implementation
connection += filterComparison.connectView(priceView)
searcher.searchAsync()
}
override fun onDestroy() {
super.onDestroy()
connection.disconnect()
searcher.cancel()
}
}
Low-level API
If you want to fully control the Filter Numeric Comparison components and connect them manually, use the following components:
Searcher: theSearcherthat handles your searches.FilterState: the current state of the filters.NumberViewModel<T>: the logic applied to the numeric value.NumberView<T>: the view that renders the numeric value.
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class MyActivity : AppCompatActivity() {
val client = ClientSearch(
ApplicationID("YourApplicationID"),
APIKey("YourAPIKey")
)
val index = client.initIndex(IndexName("YourIndexName"))
val searcher = SearcherSingleIndex(index)
val filterState = FilterState()
val price = Attribute("price")
val operator = NumericOperator.Greater
val viewModel = NumberViewModel(range = 0..10)
val connection = ConnectionHandler()
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
val view: NumberView<Int> = MyFilterPriceView() // your `NumberView<T>` implementation
searcher.query.addFacet(price)
connection += searcher.connectFilterState(filterState)
connection += viewModel.connectView(view)
connection += viewModel.connectFilterState(filterState, price, operator)
searcher.searchAsync()
}
override fun onDestroy() {
super.onDestroy()
connection.disconnect()
searcher.cancel()
}
}
Parameters
filterState
|
type: FilterState
Required
The |
attribute
|
type: Attribute
Required
The attribute to filter on. |
operator
|
type: NumericOperator
Required
The |
number
|
type: T : Number, T : Comparable<T>
default: null
Optional
Initial numeric value to filter on. |
groupID
|
type: FilterGroupID
default: FilterGroupID(attribute, FilterOperator.And)
Optional
Groups all created filters under an ID and composes them with this operator.
Defaults to the used attribute, with |
View
view
|
type: NumberView<T>
Required
The view that renders the numeric value. |
||
presenter
|
type: NumberPresenter<T>
default: NumberPresenterImpl
Optional
How to display the numeric value. |
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