setSelection constant

SemanticsAction const setSelection = const SemanticsAction._(_kSetSelectionIndex)

Set the text selection to the given range.

The provided argument is a Map<String, int> which includes the keys base and extent indicating where the selection within the value of the semantics node should start and where it should end. Values for both keys can range from 0 to length of value (inclusive).

Setting base and extent to the same value will move the cursor to that position (without selecting anything).

Implementation 

static const SemanticsAction setSelection = const SemanticsAction._(_kSetSelectionIndex)