小程序第一次启动home 页面,数据加载成功 onshow 方法没走

onShow: function() {

var that = this;

wx.onUserCaptureScreen(function(res) {

var screenshotlog = wx.getStorageSync(“screenshotlog”)

console.log("======================onUserCaptureScreen", screenshotlog + “========”);

if (screenshotlog) {

that.post();

}

});

},

日志没有打印出来