Android ListView the Right Scroll slider enables method sharing _android

Multi-developers don't know how fast scrolling sliders for ListView list controls are enabled, and here the Android Development network tells you that the Auxiliary scrolling slider only needs a single line of code, and if you use an XML layout you only need to add Android to the ListView node: Fastscrollenabled= the property "true" and the Java code can pass mylistview.setfastscrollenabled (true); To control enabled, the parameter false is hidden.
The other thing is that when your scrolling content is small and you don't get to the 3 screen heights of the current ListView, the Quick Scroll slider does not appear, and the method is still the Abslistview base method for using fast scrolling support in subclasses such as ListView or GridView.