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

displayName()	com.hyphenate.chat.EMFileMessageBody
downloadStatus()	com.hyphenate.chat.EMFileMessageBody
EMFileMessageBody(String localPath)	com.hyphenate.chat.EMFileMessageBody
EMFileMessageBody(Uri localPath)	com.hyphenate.chat.EMFileMessageBody
EMVideoMessageBody(String videoFilePath, String thumbPath, int duration, long filelength)	com.hyphenate.chat.EMVideoMessageBody
EMVideoMessageBody(Uri videoFilePath, Uri thumbPath, int duration, long filelength)	com.hyphenate.chat.EMVideoMessageBody
getDuration()	com.hyphenate.chat.EMVideoMessageBody
getFileName()	com.hyphenate.chat.EMFileMessageBody
getLocalThumb()	com.hyphenate.chat.EMVideoMessageBody
getLocalThumbUri()	com.hyphenate.chat.EMVideoMessageBody
getLocalUri()	com.hyphenate.chat.EMFileMessageBody
getLocalUrl()	com.hyphenate.chat.EMFileMessageBody
getRemoteUrl()	com.hyphenate.chat.EMFileMessageBody
getSecret()	com.hyphenate.chat.EMFileMessageBody
getThumbnailHeight()	com.hyphenate.chat.EMVideoMessageBody
getThumbnailSecret()	com.hyphenate.chat.EMVideoMessageBody
getThumbnailUrl()	com.hyphenate.chat.EMVideoMessageBody
getThumbnailWidth()	com.hyphenate.chat.EMVideoMessageBody
getVideoFileLength()	com.hyphenate.chat.EMVideoMessageBody
operationCount()	com.hyphenate.chat.EMMessageBody
operationTime()	com.hyphenate.chat.EMMessageBody
operatorId()	com.hyphenate.chat.EMMessageBody
setDownloadStatus(EMDownloadStatus status)	com.hyphenate.chat.EMFileMessageBody
setFileLength(long length)	com.hyphenate.chat.EMFileMessageBody
setFileName(String fileName)	com.hyphenate.chat.EMFileMessageBody
setLocalThumb(String localThumbPath)	com.hyphenate.chat.EMVideoMessageBody
setLocalThumb(Uri localThumbPath)	com.hyphenate.chat.EMVideoMessageBody
setLocalUrl(String localUrl)	com.hyphenate.chat.EMFileMessageBody
setLocalUrl(Uri localUrl)	com.hyphenate.chat.EMFileMessageBody
setRemoteUrl(String remoteUrl)	com.hyphenate.chat.EMFileMessageBody
setSecret(String secret)	com.hyphenate.chat.EMFileMessageBody
setThumbnailDownloadStatus(EMDownloadStatus status)	com.hyphenate.chat.EMVideoMessageBody
setThumbnailSecret(String secret)	com.hyphenate.chat.EMVideoMessageBody
setThumbnailSize(int width, int height)	com.hyphenate.chat.EMVideoMessageBody
setThumbnailUrl(String thumbnailUrl)	com.hyphenate.chat.EMVideoMessageBody
setVideoFileLength(long filelength)	com.hyphenate.chat.EMVideoMessageBody
thumbnailDownloadStatus()	com.hyphenate.chat.EMVideoMessageBody