Android之微信开放平台实现分享（分享好友和朋友圈）

2023-01-02 12:17:47

开发中分享操作往往经常遇到，而且还是一些比较大型一定的平台，如微信，QQ，微博等。写这篇博客主要是把微信的的分享和相关操作表达一下，分享可以包含：文字，视频，音乐，图片等分享。

分享可以有分享给好友，群，朋友圈等。

效果如下图：（注意：功能根据自己的需要选择就可以了）

准备工作：

微信开放平台创建应用，操作步骤请看博客：Android之微信开放平台创建应用

成功之后得到AppId，放入项目中。

public class Constants {

    // APP_ID 替换为你的应用从官方网站申请到的合法appId==

    public static final String APP_ID = "wx1b73fd7b49ffa027";

    public static class ShowMsgActivity {

        public static final String STitle = "showmsg_title";

        public static final String SMessage = "showmsg_message";

        public static final String BAThumbData = "showmsg_thumb_data";

    }

public class AppRegister extends BroadcastReceiver {

    @Override

    public void onReceive(Context context, Intent intent) {

        final IWXAPI api = WXAPIFactory.createWXAPI(context, null);

        // 将该app注册到微信

        api.registerApp(Constants.APP_ID);

    }

}

文本分享代码：

// 初始化一个WXTextObject对象

                        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;

                        // 发送文本类型的消息时，title字段不起作用

                        msg.title = "Will be ignored";

                        msg.description = text;

                        // 构造一个Req

                        SendMessageToWX.Req req = new SendMessageToWX.Req();

                        req.transaction = buildTransaction("text"); // transaction字段用于唯一标识一个请求

                        req.message = msg;

                        /**

                         * 判断是否是朋友圈

                         */

                        req.scene = isTimelineCb.isChecked() ? SendMessageToWX.Req.WXSceneTimeline : SendMessageToWX.Req.WXSceneSession;

                        // 调用api接口发送数据到微信

                        api.sendReq(req);

图片分享代码：（包含本地图片，SD卡图片，网络图片）

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

                            WXImageObject imgObj = new WXImageObject(bmp);

                            WXMediaMessage msg = new WXMediaMessage();

                            msg.mediaObject = imgObj;

                            Bitmap thumbBmp = Bitmap.createScaledBitmap(bmp, THUMB_SIZE, THUMB_SIZE, true);

                            bmp.recycle();

                            msg.thumbData = Util.bmpToByteArray(thumbBmp, true);  // 设置所图；

                            SendMessageToWX.Req req = new SendMessageToWX.Req();

                            req.transaction = buildTransaction("img");

                            req.message = msg;

                            req.scene = isTimelineCb.isChecked() ? SendMessageToWX.Req.WXSceneTimeline : SendMessageToWX.Req.WXSceneSession;

                            api.sendReq(req);

音乐分享代码

WXMusicObject music = new WXMusicObject();

                            music.musicUrl="http://staff2.ustc.edu.cn/~wdw/softdown/index.asp/0042515_05.ANDY.mp3";

                            WXMediaMessage msg = new WXMediaMessage();

                            msg.mediaObject = music;

                            msg.title = "标题";

                            msg.description = "描述信息";

                            Bitmap thumb = BitmapFactory.decodeResource(getResources(), R.drawable.send_music_thumb);

                            msg.thumbData = Util.bmpToByteArray(thumb, true);

                            SendMessageToWX.Req req = new SendMessageToWX.Req();

                            req.transaction = buildTransaction("music");

                            req.message = msg;

                            req.scene = isTimelineCb.isChecked() ? SendMessageToWX.Req.WXSceneTimeline : SendMessageToWX.Req.WXSceneSession;

                            api.sendReq(req);

视频分享代码

WXVideoObject video = new WXVideoObject();

                            video.videoUrl = "url....mp4";//mp4视频路径

                            WXMediaMessage msg = new WXMediaMessage(video);

                            msg.title = "标题";

                            msg.description = "描述信息";

Bitmap thumb = BitmapFactory.decodeResource(getResources(), R.drawable.send_music_thumb); msg.thumbData = Util.bmpToByteArray(thumb, true); SendMessageToWX.Req req = new SendMessageToWX.Req(); req.transaction = buildTransaction("video"); req.message = msg; req.scene = isTimelineCb.isChecked() ? SendMessageToWX.Req.WXSceneTimeline : SendMessageToWX.Req.WXSceneSession; api.sendReq(req);

网页分享代码：

WXWebpageObject webpage = new WXWebpageObject();

                            webpage.webpageUrl = "http://www.baidu.com";

                            WXMediaMessage msg = new WXMediaMessage(webpage);

                            msg.title = "标题";

                            msg.description = "描述信息";

                            Bitmap thumb = BitmapFactory.decodeResource(getResources(), R.drawable.send_music_thumb);

                            msg.thumbData = Util.bmpToByteArray(thumb, true);

                            SendMessageToWX.Req req = new SendMessageToWX.Req();

                            req.transaction = buildTransaction("webpage");

                            req.message = msg;

                            req.scene = isTimelineCb.isChecked() ? SendMessageToWX.Req.WXSceneTimeline : SendMessageToWX.Req.WXSceneSession;

                            api.sendReq(req);

等等。

代码下载

github: https://github.com/DickyQie/android-third-party/tree/weixin-share

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