一、整体结构

二、代码

2.1 index

2.1.1 index.css

.container {
          
   
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 100%;
    height: 100%;
}

.title {
          
   
    font-size: 40px;
    color: #000000;
    opacity: 0.9;
}
.btu{
          
   
    width: 500px;
}

@media screen and (device-type: tablet) and (orientation: landscape) {
          
   
    .title {
          
   
        font-size: 100px;
    }
}

@media screen and (device-type: wearable) {
          
   
    .title {
          
   
        font-size: 28px;
        color: #FFFFFF;
    }
}

@media screen and (device-type: tv) {
          
   
    .container {
          
   
        background-image: url("/common/images/Wallpaper.png");
        background-size: cover;
        background-repeat: no-repeat;
        background-position: center;
    }

    .title {
          
   
        font-size: 100px;
        color: #FFFFFF;
    }
}

@media screen and (device-type: phone) and (orientation: landscape) {
          
   
    .title {
          
   
        font-size: 60px;
    }
}

2.1.2 index.hml

<div class="container">
    <text class="title">
        {
          
   {
          
   harmony}}
    </text>
    <button @click="toSecPage()" class="btu">进入SecPage页面</button>
</div>

2.1.3 index.js

import router from @system.router;
export default {
          
   
    data: {
          
   
        harmony: ""
    },
    onInit() {
          
   
        this.harmony = "鸿蒙初生，连接万物";
    },
    toSecPage(){
          
   
        router.push(
            {
          
   
            uri:"pages/secpage/secpage",//跳转网页的位置 在config.json中查找
            params: {
          
   
                harmony:this.harmony
                }
            }
        );
    }
}

2.2 secpage

2.2.1 secpage.css

.container {
          
   
    display: flex;
    justify-content: center;
    align-items: center;
    left: 0px;
    top: 0px;
    width: 454px;
    height: 454px;
}

.title {
          
   
    font-size: 30px;
    text-align: center;
    width: 200px;
    height: 100px;
}

2.2.2 secpage.hml

<div class="container">
    <button onclick="back">返回主页面</button>
</div>

2.2.3 secpage.js

import router from @system.router;
export default {
          
   
    data: {
          
   
        title: World
    },
    onInit(){
          
   
        console.info(this.harmony);//打印传递过来的harmony
    },
    back(){
          
   
        router.back();
    }
}

三、拓展

3.1 onBackPress（）

import router from @system.router;
export default {
          
   
    data: {
          
   
        harmony: ""
    },
    onInit() {
          
   
        this.harmony = "鸿蒙初生，连接万物";
    },
    toSecPage(){
          
   
        router.push(
            {
          
   
            uri:"pages/secpage/secpage",//跳转网页的位置 在config.json中查找
            params: {
          
   
                harmony:this.harmony
                }
            }
        );
    },
    onBackPress(){
          
   
        console.info("ddd");
        return false;
    }
}

3.2 设置页面跳转次数（全局变量）

export default {
          
   
    data:{
          
   
        jumpCount:null
    },
    getJumpCount(){
          
   
        return this.jumpCount;
    },
    setJumpCount(count){
          
   
        this.jumpCount=count;
    },
    onCreate() {
          
   
        this.jumpCount=0;
        console.info(AceApplication onCreate);
    },
    onDestroy() {
          
   
        console.info(AceApplication onDestroy);
    }
};