nfc使用wx.onHCEMessage(CALLBACK)问题
wx.startHCE({ aid_list: ['F222222222'], success: function (res) { that.setData({ text: res.errMsg }) wx.onHCEMessage(function (res) { that.setData({ text: 'res.data' }) if (res.messageType === 1) { that.setData({ text: 'res.data' }) wx.sendHCEMessage({ data: buffer }) } }) } }) 用读卡设备对手机发送adpu指令后，text并没有显示'res.data'，应该怎么使用wx.onHCEMessage()
