Added in API level 24
    BooleanSupplier
@FunctionalInterface interface BooleanSupplier
| java.util.function.BooleanSupplier | 
Represents a supplier of boolean-valued results. This is the boolean-producing primitive specialization of Supplier. 
There is no requirement that a new or distinct result be returned each time the supplier is invoked.
This is a functional interface whose functional method is getAsBoolean().
Summary
| Public methods | |
|---|---|
| abstract Boolean | 
            
             Gets a result.  | 
        
Public methods
getAsBoolean
Added in API level 24
      abstract fun getAsBoolean(): Boolean
Gets a result.
| Return | |
|---|---|
Boolean | 
            a result |