1. APP拉起小程序正常

	implementation 'com.tencent.mm.opensdk:wechat-sdk-android:+'
IWXAPI api = WXAPIFactory.createWXAPI(this, HttpUtil.WECHAT_OPEN_APPID);
WXLaunchMiniProgram.Req req = new WXLaunchMiniProgram.Req();
req.userName = HttpUtil.WECHAT_MINI_ID;
req.path = "/pages/thirdpay/thirdpay?"+params;
req.miniprogramType = WXLaunchMiniProgram.Req.MINIPROGRAM_TYPE_TEST;
api.sendReq(req); 

2、小程序返回app，点击按钮没有反映，也没有调用launchAppError

  <button style="margin-top: 100px;" open-type="launchApp" app-parameter="wechat" binderror="launchAppError">返回app2</button>

3、app有配置 WXEntryActivity

<activity
    android:name=".wxapi.WXEntryActivity"
    android:exported="true"
    android:launchMode="singleTask"
    android:taskAffinity="io.dcloud.glzhtc"
    android:theme="@style/AppTheme.NoActionBar" />