经过漫长而耗时的搜索，我找不到可以在textview中为androidAPI级别publicclassSelectableTextViewextendsTextView{publicstaticint_SelectedBackgroundColor=0xffA6D4E1;publicstaticint_SelectedTextColor=0xff000000;privateOnTouchListenerlastOnTouch;protectedinttextOffsetStart;protectedinttextOffsetEnd;privateOnLongClickListenerl