iOS开发之长按浮动操作选择项

我们一般会有长按一段文字显示气泡浮动操作选项的需求

我们常用的方法如下

cut:   copy: select: selectAll: paste:   delete:   _promptForReplace:   _transliterateChinese:   _showTextStyleOptions:   _define: _addShortcut:   _accessibilitySpeak:   _accessibilitySpeakLanguageSelection:   _accessibilityPauseSpeaking:   makeTextWritingDirectionRightToLeft: makeTextWritingDirectionLeftToRight: