@param appContext @param mediaType @param media @throws NullPointerException if any argument is null

The material will expire in 3 days @param mediaType @param media @throws NullPointerException if any argument is null

@param media {@code size <= 64KB}, format: jpg

@param media {@code size <= 64KB}, format: jpg

@param media {@code size <= 10M}, format: mp4 @param title @param introduction

@param media {@code size <= 10M}, format: mp4

@param media {@code size <= 2M}, {@code times <= 60s}, format: mp3/wma/wav/amr

@param media {@code size <= 2M}, {@code times <= 60s}, format: amr|mp3

构造函数 @param token 公众平台上，开发者设置的token @param encodingAesKey 公众平台上，开发者设置的EncodingAESKey @param appId application id

Set template data. @param name required @param value required @param color optional

Close order by outTradeNo @param request @return

@return null if network error

create permanent QRCode with sceneId @param sceneId {@code >= 1 && <= 100000} @return null if network error

create temporary QRCode, it will expire in {@code expireSeconds} @param expireSeconds {@code >= 30 && <= 2592000}, 30 seconds to 30 days @param sceneI

@param mediaId @return null if network error @throws NullPointerException if mediaId is null

dispatch wechat inbound message to specify message listeners @param msgSignature message signature from wechat server @param timestamp timestamp of re

@param mediaId @param saveDir @param fileName a name will be created if null @return null if network error @throws NullPointerException if mediaId or

@param mediaId @param saveDir @param fileName a name will be created if null @return null if network error @throws NullPointerException if mediaId or