当前位置： 首页 > news >正文

南京本地网站建设手机网站制作平台

news 2025/8/18 21:20:10
南京本地网站建设,手机网站制作平台,整站seo排名外包,外包网站怎么做seo在大多数应用中，UI需以某种方式连接到系统的其余部分，并发送和接收数据。 它可能会与硬件外设（传感器数据、模数转换和串行通信等）或其他软件模块进行交互通讯。 Model类​ 所有TouchGFX应用都有Model类，Model类除了存…

在大多数应用中，UI需以某种方式连接到系统的其余部分，并发送和接收数据。 它可能会与硬件外设（传感器数据、模数转换和串行通信等）或其他软件模块进行交互通讯。

Model类​

所有TouchGFX应用都有Model类，Model类除了存储UI状态信息，还可用作面向周围系统的接口。 这里周围系统我们指的是在你整个系统中用到的硬件外设以及需要进行通讯的其他任务。 通常来讲，在各自的View类中直接访问其他软件模块或者硬件外设并不是个好的设计。

Model类非常适合放置任何此类接口代码，原因在于：

  1. Model类有 tick() 函数，会在每一帧自动调用，并且可实现用于查找来自其他子模块的事件或对事件作出反应。
  2. Model类有一个指向当前活动Presenter的指针，它能够将传入事件通知给UI。

以下示例为：通过button控件，触发数据发送给系统其他任务；该任务再将数据发回touchgfx任务。

首先程序需要touchgfx以外的一个任务，和两个用来收发数据的队列

然后创建一个button控件，并设置交互为调用虚函数

编写向周围系统发送数据的程序

screenView.hpp#ifndef SCREENVIEW_HPP
#define SCREENVIEW_HPP#include <gui_generated/screen_screen/screenViewBase.hpp>
#include <gui/screen_screen/screenPresenter.hpp>class screenView : public screenViewBase
{
public:screenView();virtual ~screenView() {}virtual void setupScreen();virtual void tearDownScreen();virtual void function1();
protected:
};#endif // SCREENVIEW_HPP

screenView.cpp#include <gui/screen_screen/screenView.hpp>screenView::screenView()
{}void screenView::setupScreen()
{screenViewBase::setupScreen();
}void screenView::tearDownScreen()
{screenViewBase::tearDownScreen();
}void screenView::function1()
{presenter->bc();
}
screenPresenter.hpp#ifndef SCREENPRESENTER_HPP
#define SCREENPRESENTER_HPP#include <gui/model/ModelListener.hpp>
#include <mvp/Presenter.hpp>using namespace touchgfx;class screenView;class screenPresenter : public touchgfx::Presenter, public ModelListener
{
public:screenPresenter(screenView& v);/*** The activate function is called automatically when this screen is "switched in"* (ie. made active). Initialization logic can be placed here.*/virtual void activate();/*** The deactivate function is called automatically when this screen is "switched out"* (ie. made inactive). Teardown functionality can be placed here.*/virtual void deactivate();virtual ~screenPresenter() {}void bc();private:screenPresenter();screenView& view;
};#endif // SCREENPRESENTER_HPP

screenPresenter.cpp#include <gui/screen_screen/screenView.hpp>
#include <gui/screen_screen/screenPresenter.hpp>screenPresenter::screenPresenter(screenView& v): view(v)
{}void screenPresenter::activate()
{}void screenPresenter::deactivate()
{}void screenPresenter::bc()
{model->toggleState();
}
Model.hpp#ifndef MODEL_HPP
#define MODEL_HPPclass ModelListener;class Model
{
public:Model();void bind(ModelListener* listener){modelListener = listener;}void tick();void toggleState();protected:ModelListener* modelListener;bool state;
};#endif // MODEL_HPP

Model.cpp#include <gui/model/Model.hpp>
#include <gui/model/ModelListener.hpp>
#include "../../../../Middlewares/Third_Party/FreeRTOS/Source/CMSIS_RTOS_V2/cmsis_os2.h"#ifndef SIMULATOR//*******************************************************
//   Define Queue handles
//*******************************************************
extern "C" {extern osMessageQueueId_t myQueue01Handle;extern osMessageQueueId_t myQueue02Handle;
}
#else
#include <stdio.h>
#endifModel::Model() : modelListener(0), state(0)
{}void Model::tick()
{}void Model::toggleState()
{state = !state;#ifndef SIMULATORuint16_t msg = state;if (myQueue01Handle){osMessageQueuePut(myQueue01Handle, &msg, 0, 0);}
#endif
}
freertos.cvoid StartDefaultTask(void *argument)
{/* USER CODE BEGIN StartDefaultTask */uint16_t msg = 0;/* Infinite loop */for(;;){if (osMessageQueueGet(myQueue01Handle, &msg, 0U, 1000) == osOK){}}/* USER CODE END StartDefaultTask */
}

编写向UI发送数据的程序

freertos.cvoid StartDefaultTask(void *argument)
{/* USER CODE BEGIN StartDefaultTask */uint16_t msg = 0;uint16_t color;/* Infinite loop */for(;;){if (osMessageQueueGet(myQueue01Handle, &msg, 0U, 1000) == osOK){if(msg)color = 0x0000;elsecolor = 0xFFFF;osMessageQueuePut(myQueue02Handle, &color, 0U, 0);}}/* USER CODE END StartDefaultTask */
}
Model.hpp#ifndef MODEL_HPP
#define MODEL_HPPclass ModelListener;class Model
{
public:Model();void bind(ModelListener* listener){modelListener = listener;}void tick();void toggleState();void setboxColor(unsigned short color);
protected:ModelListener* modelListener;bool state;
};#endif // MODEL_HPP
Model.cpp#include <gui/model/Model.hpp>
#include <gui/model/ModelListener.hpp>
#include "../../../../Middlewares/Third_Party/FreeRTOS/Source/CMSIS_RTOS_V2/cmsis_os2.h"#ifndef SIMULATOR//*******************************************************
//   Define Queue handles
//*******************************************************
extern "C" {extern osMessageQueueId_t myQueue01Handle;extern osMessageQueueId_t myQueue02Handle;
}
#else
#include <stdio.h>
#endifModel::Model() : modelListener(0), state(0)
{}void Model::tick()
{
#ifndef SIMULATOR//*******************************************************////  HANDLE MESSAGES////  Check for messages from backend, with zero timeout to//  avoid blocking the UI.////*******************************************************//uint16_t msg = 0;if (osMessageQueueGet(myQueue02Handle, &msg, 0U, 0) == osOK){setboxColor(msg);}#endif
}void Model::toggleState()
{state = !state;#ifndef SIMULATORuint16_t msg = state;if (myQueue01Handle){osMessageQueuePut(myQueue01Handle, &msg, 0, 0);}
#endif
}void Model::setboxColor(unsigned short color)
{modelListener->setboxColor(color);
}

#ifndef MODELLISTENER_HPP
#define MODELLISTENER_HPP#include <gui/model/Model.hpp>class ModelListener
{
public:ModelListener() : model(0) {}virtual ~ModelListener() {}void bind(Model* m){model = m;}virtual void setboxColor(unsigned short color) {}
protected:Model* model;
};#endif // MODELLISTENER_HPP

#ifndef SCREENPRESENTER_HPP
#define SCREENPRESENTER_HPP#include <gui/model/ModelListener.hpp>
#include <mvp/Presenter.hpp>using namespace touchgfx;class screenView;class screenPresenter : public touchgfx::Presenter, public ModelListener
{
public:screenPresenter(screenView& v);/*** The activate function is called automatically when this screen is "switched in"* (ie. made active). Initialization logic can be placed here.*/virtual void activate();/*** The deactivate function is called automatically when this screen is "switched out"* (ie. made inactive). Teardown functionality can be placed here.*/virtual void deactivate();virtual ~screenPresenter() {}void bc();virtual void setboxColor(unsigned short color);
private:screenPresenter();screenView& view;
};#endif // SCREENPRESENTER_HPP

#include <gui/screen_screen/screenView.hpp>
#include <gui/screen_screen/screenPresenter.hpp>screenPresenter::screenPresenter(screenView& v): view(v)
{}void screenPresenter::activate()
{}void screenPresenter::deactivate()
{}void screenPresenter::bc()
{model->toggleState();
}void screenPresenter::setboxColor(unsigned short color)
{view.setbox1Color(color);
}

#ifndef SCREENVIEW_HPP
#define SCREENVIEW_HPP#include <gui_generated/screen_screen/screenViewBase.hpp>
#include <gui/screen_screen/screenPresenter.hpp>class screenView : public screenViewBase
{
public:screenView();virtual ~screenView() {}virtual void setupScreen();virtual void tearDownScreen();virtual void function1();void setbox1Color(unsigned short color);
protected:
};#endif // SCREENVIEW_HPP

#include <gui/screen_screen/screenView.hpp>screenView::screenView()
{}void screenView::setupScreen()
{screenViewBase::setupScreen();
}void screenView::tearDownScreen()
{screenViewBase::tearDownScreen();
}void screenView::function1()
{presenter->bc();
}void screenView::setbox1Color(unsigned short color)
{box1.setColor(color);box1.invalidate();
}

烧录进开发板，现象（点击按钮，box颜色在黑白之间切换）

http://www.jinmujx.cn/news/78323.html

相关文章：

  • 用html制作一个注册页面技术优化seo
  • 做亚马逊运营要看哪些网站厦门最快seo
  • 建站教学视频谷歌关键词排名优化
  • 做中东服装有什么网站手机百度极速版app下载安装
  • 做网站头片的高清图百度客户端
  • 资料代做网站nba篮网最新消息
  • 外管局网站怎么做报告seo排名第一的企业
  • php做的网站怎么打开武汉最新今天的消息
  • 高端网站设计公司排行榜优化软件有哪些
  • 定制网站制作系统昆明自动seo
  • 免费ppt资源网站如何做网站seo
  • 国外做糖网站b2b网站免费推广
  • 网站特效 站长刷粉网站推广马上刷
  • 建设银行网站用户登录网络公司seo教程
  • 网站建设与制作与维护ppt收录网站排名
  • vrchat视频转码seo方案
  • 长春网站建设外包优化设计方案
  • 深圳龙华做网站的免费下载百度软件
  • 做帮助手册的网站企业网站营销的优缺点
  • 网站jsp充值和体现系统怎么做广告公司图片
  • 有专业做网站的吗餐饮店如何引流与推广
  • 有关网站升级建设的申请书广告seo是什么意思
  • 专业网站建设微信官网开发电脑优化大师
  • 徐州网站建设制作工作室百度搜索风云榜官网
  • 有什么做ppt的网站吗中国免费网站服务器主机域名
  • 做网站用突发性实例可以吗软件培训机构
  • 域名跳转到其他网站新闻播报最新
  • unity3d可以做网站吗企业网站开发制作
  • 做定制的网站四年级写一小段新闻
  • 美食网站怎么做dwgoogle seo优化