Added in API level 1
    Filterable
interface Filterable
| android.widget.Filterable | 
Defines a filterable behavior. A filterable class can have its data constrained by a filter. Filterable classes are usually android.widget.Adapter implementations.
Summary
| Public methods | |
|---|---|
| abstract Filter! | 
            
             Returns a filter that can be used to constrain data with a filtering pattern.  | 
        
Public methods
getFilter
Added in API level 1
      abstract fun getFilter(): Filter!
Returns a filter that can be used to constrain data with a filtering pattern.
This method is usually implemented by android.widget.Adapter classes.
| Return | |
|---|---|
Filter! | 
            a filter used to constrain data |