Get method documentation [Android Documentation]

Indicates whether the popup window supports splitting touches.

Set method documentation [Android Documentation]

Allows the popup window to split touches across other windows that also support split touch. When this flag is false, the first pointer that goes down determines the window to which all subsequent touches go until all pointers go up. When this flag is true, each pointer (not necessarily the first) that goes down determines the window to which all subsequent touches of that pointer will go until that pointer goes up thereby enabling touches with multiple pointers to be split across multiple windows.