[移动开发]Android微信分享文件

    String filepath=“要分享的文件路径”;
    WXFileObject fileObj = new WXFileObject();
    fileObj.fileData = inputStreamToByte(filepath);//文件
    fileObj.filePath = filepath;

    //使用媒体消息分享
    WXMediaMessage msg = new WXMediaMessage(fileObj);
    msg.title = "文件名.文件格式"  ;  //***后缀很重要 否则分享的内容会无法打开

    //发送请求
    SendMessageToWX.Req req = new SendMessageToWX.Req();
    //创建唯一标识
    req.transaction = String.valueOf(System.currentTimeMillis());
    req.message = msg;
    req.scene = SendMessageToWX.Req.WXSceneSession;
   
    wxapi.sendReq(req);

//转为字节数组
public static byte[] inputStreamToByte(String path){
    try {
        FileInputStream fis = new FileInputStream(path);
        ByteArrayOutputStream bytestream = new ByteArrayOutputStream();
        int ch;
        while ((ch = fis.read()) != -1) {
            bytestream.write(ch);
        }
        byte imgdata[] = bytestream.toByteArray();
        bytestream.close();
        return imgdata;
    } catch (Exception e) {
        e.printStackTrace();
    }
    return null;
}