//初始化一个 WXTextObject 对象，填写分享的文本内容
WXTextObject textObj = new WXTextObject();
textObj.text = text;

//用 WXTextObject 对象初始化一个 WXMediaMessage 对象
WXMediaMessage msg = new WXMediaMessage();
msg.mediaObject = textObj;
msg.description = text;

SendMessageToWX.Req req = new SendMessageToWX.Req();
req.transaction = buildTransaction("text");
req.message = msg;
req.scene = mTargetScene;
//调用api接口，发送数据到微信
api.sendReq(req);

Bitmap bmp = BitmapFactory.decodeResource(getResources(), R.drawable.send_img);

//初始化 WXImageObject 和 WXMediaMessage 对象
WXImageObject imgObj = new WXImageObject(bmp);
WXMediaMessage msg = new WXMediaMessage();
msg.mediaObject = imgObj;

//设置缩略图
Bitmap thumbBmp = Bitmap.createScaledBitmap(bmp, THUMB_SIZE, THUMB_SIZE, true);
bmp.recycle();
msg.thumbData = Util.bmpToByteArray(thumbBmp, true);

//构造一个Req
SendMessageToWX.Req req = new SendMessageToWX.Req();
req.transaction = buildTransaction("img");
req.message = msg;
req.scene = mTargetScene;
req.userOpenId = getOpenId();
//调用api接口，发送数据到微信
api.sendReq(req);

//初始化一个WXVideoObject，填写url
WXVideoObject video = new WXVideoObject();
video.videoUrl ="视频url";

//用 WXVideoObject 对象初始化一个 WXMediaMessage 对象
WXMediaMessage msg = new WXMediaMessage(video);
msg.title ="视频标题";
msg.description ="视频描述";
Bitmap thumbBmp = BitmapFactory.decodeResource(getResources(), R.drawable.send_music_thumb);
msg.thumbData =Util.bmpToByteArray(thumbBmp,true);

//构造一个Req
SendMessageToWX.Req req = new SendMessageToWX.Req();
req.transaction = buildTransaction("video");
req.message =msg;
req.scene = mTargetScene;
req.userOpenId = getOpenId();

//调用api接口，发送数据到微信
api.sendReq(req);

//初始化一个WXWebpageObject，填写url
WXWebpageObject webpage = new WXWebpageObject();
webpage.webpageUrl ="网页url";

//用 WXWebpageObject 对象初始化一个 WXMediaMessage 对象
WXMediaMessage msg = new WXMediaMessage(webpage);
msg.title ="网页标题 ";
msg.description ="网页描述";
Bitmap thumbBmp = BitmapFactory.decodeResource(getResources(), R.drawable.send_music_thumb);
msg.thumbData =Util.bmpToByteArray(thumbBmp, true);

//构造一个Req
SendMessageToWX.Req req = new SendMessageToWX.Req();
req.transaction = buildTransaction("webpage");
req.message =msg;
req.scene =mTargetScene;
req.userOpenId = getOpenId();

//调用api接口，发送数据到微信
api.sendReq(req);

WXMiniProgramObject miniProgramObj = new WXMiniProgramObject();
miniProgramObj.webpageUrl = "http://www.qq.com"; // 兼容低版本的网页链接
miniProgramObj.miniprogramType = WXMiniProgramObject.MINIPTOGRAM_TYPE_RELEASE;// 正式版:0，测试版:1，体验版:2
miniProgramObj.userName = "gh_d43f693ca31f";     // 小程序原始id
miniProgramObj.path = "/pages/media";            //小程序页面路径；对于小游戏，可以只传入 query 部分，来实现传参效果，如：传入 "?foo=bar"
WXMediaMessage msg = new WXMediaMessage(miniProgramObj);
msg.title = "小程序消息Title";                    // 小程序消息title
msg.description = "小程序消息Desc";               // 小程序消息desc
msg.thumbData = getThumb();                      // 小程序消息封面图片，小于128k

SendMessageToWX.Req req = new SendMessageToWX.Req();
req.transaction = buildTransaction("miniProgram");
req.message = msg;
req.scene = SendMessageToWX.Req.WXSceneSession;  // 目前只支持会话
api.sendReq(req);

WXMusicVideoObject musicVideo = new WXMusicVideoObject();
musicVideo.musicUrl = "https://www.qq.com";	 // 音乐url
musicVideo.musicDataUrl="http://xxx/xx.mp3"; // 音乐音频url
musicVideo.songLyric = "xxx";	// 歌词
musicVideo.hdAlbumThumbFilePath = "xxx";	 // 专辑图本地文件路径
musicVideo.singerName = "xxx";
musicVideo.albumName = "album_xxx";
musicVideo.musicGenre = "流行歌曲";
musicVideo.issueDate = 1610713585;
musicVideo.identification = "sample_identification";
musicVideo.duration = 120000;	// 单位为毫秒

WXMediaMessage msg = new WXMediaMessage();
msg.mediaObject = musicVideo;
msg.title = "歌曲名称";	// 必填，不能为空
msg.description = "歌曲描述";  // 选填，建议与歌手名字段 singerName 保持一致
msg.messageExt = "额外信息";   // 微信跳回应用时会带上
msg.thumbData = getThumb();   // 音乐卡片缩略图，不超过64KB

SendMessageToWX.Req req = new SendMessageToWX.Req();
req.transaction = buildTransaction("musicVideo");
req.message = msg;
req.scene = SendMessageToWX.Req.WXSceneSession;	// 支持会话、朋友圈、收藏
api.sendReq(req);

@Override
public void onReq(BaseReq req) {
	switch (req.getType()) {
		case ConstantsAPI.COMMAND_SHOWMESSAGE_FROM_WX:
			goToShowMsg((ShowMessageFromWX.Req) req);
			break;
		default:
			break;
    }
}

private void goToShowMsg(ShowMessageFromWX.Req showReq) {
		WXMediaMessage wxMsg = showReq.message;
		if (wxMsg.mediaObject instanceof WXMusicVideoObject) {
			WXMusicVideoObject musicVideoObject = (WXMusicVideoObject) wxMsg.mediaObject;
			String identification = musicVideoObject.identification;	// 分享到微信时的音乐标识符字段
			String messageExt = wxMsg.messageExt;	//分享到微信时传的额外信息字段
          	// 应用根据identification与messageExt自行处理
		}
}