APP拉起小程序
private void launchMiniProgram(String path) { String appId = "你的appid"; // 填应用AppId IWXAPI api = WXAPIFactory.createWXAPI(PinDanActivity.this, appId); WXLaunchMiniProgram.Req req = new WXLaunchMiniProgram.Req(); req.userName = "原始id"; // 填小程序原始id req.path = path; //拉起小程序页面的可带参路径，不填默认拉起小程序首页 req.miniprogramType = WXLaunchMiniProgram.Req.MINIPROGRAM_TYPE_PREVIEW;// 可选打开 开发版，体验版和正式版 api.sendReq(req); }
req.userName 参数是小程序原始id，不是小程序的appid，不然会提示跳转失败。
req.path 参数是小程序里面的页面路径，及json文件里面的路径，比如：/pages/index/index?id=1
req.miniprogramType 小程序的版本
回调WXEntryActivity
@Override public void onResp(BaseResp baseResp) { // baseresp.getType 1:第三方授权， 2:分享 LogUtil.i("baseresp.getType = " + baseResp.getType()); switch (baseResp.getType()) { case 1: break; case 2: break; case ConstantsAPI.COMMAND_LAUNCH_WX_MINIPROGRAM: WXLaunchMiniProgram.Resp launchMiniProResp = (WXLaunchMiniProgram.Resp) baseResp; //获取参数 String extraData = launchMiniProResp.extMsg; //对应小程序组件 <button open-type="launchApp"> 中的 app-parameter 属性 break; } }
APP分享小程序
private void shareMiniProgram(String url) { WXMiniProgramObject miniProgramObj = new WXMiniProgramObject(); miniProgramObj.webpageUrl = url; // 兼容低版本的网页链接 miniProgramObj.miniprogramType = WXMiniProgramObject.MINIPROGRAM_TYPE_PREVIEW;// 正式版:0，测试版:1，体验版:2 miniProgramObj.userName = "原始id"; // 小程序原始id miniProgramObj.path = "/pages/home/home"; //小程序页面路径 WXMediaMessage msg = new WXMediaMessage(miniProgramObj); msg.title ="分享的标题"; // 小程序消息title msg.description = "分享的描述"; // 小程序消息desc Bitmap bitmap = BitmapFactory.decodeResource(getResources(), R.drawable.pindan); msg.thumbData = bmpToByteArray(bitmap, true); // 小程序消息封面图片，小于128k SendMessageToWX.Req req = new SendMessageToWX.Req(); req.transaction = buildTransaction("webpage"); req.message = msg; req.scene = SendMessageToWX.Req.WXSceneSession; // 目前支持会话 api.sendReq(req); }
小程序打开APP
<button open-type="launchApp" app-parameter="wechat" binderror="launchAppError">打开APP</button>
open-type=“launchApp” 开放能力
app-parameter=“wechat” 传参
binderror=“launchAppError” 失败回调
Page({ launchAppError (e) { console.log(e.detail.errMsg) } })
