成员的完整列表，这些成员属于 com.hyphenate.chat.EMConferenceManager.EMUploadButtonLayout,包括所有继承而来的类成员

AFTER (定义于 com.hyphenate.chat.EMConferenceManager.EMUploadButtonLayout)	com.hyphenate.chat.EMConferenceManager.EMUploadButtonLayout
BEFORE (定义于 com.hyphenate.chat.EMConferenceManager.EMUploadButtonLayout)	com.hyphenate.chat.EMConferenceManager.EMUploadButtonLayout
code (定义于 com.hyphenate.chat.EMConferenceManager.EMUploadButtonLayout)	com.hyphenate.chat.EMConferenceManager.EMUploadButtonLayout
EMUploadButtonLayout(int code) (定义于 com.hyphenate.chat.EMConferenceManager.EMUploadButtonLayout)	com.hyphenate.chat.EMConferenceManager.EMUploadButtonLayout
END (定义于 com.hyphenate.chat.EMConferenceManager.EMUploadButtonLayout)	com.hyphenate.chat.EMConferenceManager.EMUploadButtonLayout
toFormatStr(EMUploadButtonLayout button) (定义于 com.hyphenate.chat.EMConferenceManager.EMUploadButtonLayout)	com.hyphenate.chat.EMConferenceManager.EMUploadButtonLayout	static
TOP (定义于 com.hyphenate.chat.EMConferenceManager.EMUploadButtonLayout)	com.hyphenate.chat.EMConferenceManager.EMUploadButtonLayout