HarmonyOS 应用开发在线体验- lianxiren 原创

一、技术相关

使用语言: Js

体验内容： lianxiren

工具：在线开发

https://playground.harmonyos.com/#/cn/onlineDemo?ha_source=harmonyos&ha_sourceid=9011

二、展示效果与代码理解

Html

<div class=“container”>

<list class="list">

    <list-item for="{{contactList}}" class="list-item" onfocus="listFocus({{$idx}})"

               onclick="clickItem({{$idx}})">

        <image src="{{$item.image}}" class="list-image"></image>

        <div class="content">

            <text class="list-text">

                {{$item.name}}

            </text>

            <text class="list-text" focusable="true">

                {{$item.phone}}

            </text>

        </div>

        <image class="right-image" src="/common/right.png">

        </image>

    </list-item>

</list>

<div class="detail-container">

    <image class="detail-image" src="{{detailObj.image}}">

    </image>

    <text class="detail-name">

        {{detailObj.name}}

    </text>

    <text class="detail-phone">

        phone : {{detailObj.phone}}

    </text>

</div>

<dialog id="detailDialog" class="dialog-main" if="{{isPhoneDevice}}" @cancel="dialogCancel">

    <div class="dialog-div">

        <image src="{{detailObj.image}}" class="avatar"></image>

        <div class="input-box">

            <div class="flex-row">

                <label class="label" target="name">名字</label>

                <input id="name" class="input" type="text" value="{{name}}" @change="changeName">

                </input>

            </div>

            <div class="flex-row">

                <label class="label" target="phone">电话</label>

                <input id="phone" class="input" type="text" value="{{phone}}" @change="changePhone">

                </input>

            </div>

        </div>

        <div class="inner-btn">

            <button class="btn" type="text"  onclick="cancel">取消</button>

            <button class="btn" type="text"  onclick="confirm">确认</button>

        </div>

    </div>

</dialog>
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</div>

Css

.container {

display: flex;

flex-direction: row;

justify-content: flex-start;

}

.list {

margin-right: 14px;

width: 100%;

}

.content {

display: flex;

flex-direction: column;

justify-content: center;

flex: 1;

overflow: hidden;

}

.flex-row {

display: flex;

flex-direction: row;

align-items: center;

width: 200px;

}

@media screen and (device-type: tv) {

.list {

width: 50%;

padding-right: 24px;

padding-left: 24px;
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}

}

.list-item {

height: 64px;

margin: 0 14px;

display: flex;

flex-direction: row;

align-items: center;

}

@media screen and (device-type: wearable) {

.list-item {

height: 80px;
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}

.content {

color:#ffffff;
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}

}

@media screen and (device-type: tv) {

.list-item {

height: 64px;

border-radius: 8px;

padding-left: 24px;

background-color: #2c2c2c;

display: flex;

flex-direction: row;

align-items: center;

margin: 5px 0;
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}

.content {

color: #b4b4b4;
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}

}

.list-image {

height: 46px;

width: 46px;

}

.list-text {

margin-left: 16px;

font-size: 14px;

white-space: nowrap;

text-overflow: ellipsis;

overflow: hidden;

flex: 1;

}

.detail-container {

width: 0;

height: 0;

overflow: hidden;

color: #b4b4b4;

}

.right-image {

width: 0px;

height: 0px;

}

@media screen and (device-type: phone) {

.right-image {

width: 30px;

height: 30px;
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}

}

@media screen and (device-type: tv) {

.detail-container {

position: absolute;

right: 14px;

top: 50%;

width: 50%;

height: 100%;

transform: translateY(-50%);

display: flex;

flex-direction: column;

justify-content: center;

align-items: center;
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}

.detail-image {

height: 100px;

width: 100px;
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}

.detail-name,

.detail-phone {

margin-top: 12px;

font-size: 20px;

white-space: nowrap;

text-overflow: ellipsis;

text-align: center;

max-height: 2rem;

overflow: hidden;

width: 100%;
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}

}

.dialog-div {

width: 280px;

background-color: #fff;

display: flex;

flex-direction: column;

align-items: center;

justify-content: space-between;

}

.input-box {

display: flex;

flex-direction: column;

align-items: center;

justify-content: center;

padding: 0 50px;

}

.inner-btn {

width: 200px;

height: 40px;

margin-top: 10px;

display: flex;

justify-content: space-around;

align-items: center;

}

.btn {

font-size: 15px;

background: none;

border: none;

color: #1460f7;

}

.label {

width: 40px;

font-size: 16px;

}

.input {

font-size: 16px;

line-height: 32px;

width: 160px;

border: none;

border-bottom: 1px solid #c8c8c8;

}

.avatar {

width: 150px;

height: 150px;

margin: 20px;

}

Js

const HEAD_IMAGE = [“/common/head0.png”, “/common/head1.png”, “/common/head2.png”, “/common/head3.png”, “/common/head4.png”];

export default {

//数据字段定义

contactList: [

    {

        image: HEAD_IMAGE[0],

        name: "Alan",

        phone: "020-00000000"

    },

    {

        image: HEAD_IMAGE[2],

        name: "Bob",

        phone: "020-11111111"

    },

    {

        image: HEAD_IMAGE[3],

        name: "Carl",

        phone: "0755-33333333"

    },

    {

        image: HEAD_IMAGE[4],

        name: "David",

        phone: "19876543210"

    },

    {

        image: HEAD_IMAGE[0],

        name: "Alan",

        phone: "020-00000000"

    },

    {

        image: HEAD_IMAGE[1],

        name: "Bob",

        phone: "020-11111111"

    },

    {

        image: HEAD_IMAGE[2],

        name: "Carl",

        phone: "12345678910"

    },

    {

        image: HEAD_IMAGE[3],

        name: "David",

        phone: "19876543210"

    },

    {

        image: HEAD_IMAGE[4],

        name: "Alan",

        phone: "020-00000000"

    },

    {

        image: HEAD_IMAGE[0],

        name: "Bob",

        phone: "020-11111111"

    },

    {

        image: HEAD_IMAGE[1],

        name: "Carl",

        phone: "12345678910"

    },

    {

        image: HEAD_IMAGE[2],

        name: "David",

        phone: "19876543210"

    },

    {

        image: HEAD_IMAGE[3],

        name: "Alan",

        phone: "020-00000000"

    },

    {

        image: HEAD_IMAGE[4],

        name: "Bob",

        phone: "020-11111111"

    },

    {

        image: HEAD_IMAGE[0],

        name: "Carl",

        phone: "12345678910"

    },

    {

        image: HEAD_IMAGE[1],

        name: "David",

        phone: "19876543210"

    }

],

//只做数据字段定义

isPhoneDevice: false,

name: "",

phone: "",

detailObj: {

    image: "",

    name: "",

    phone: ""

},
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}

三、相关可以讨论的问题

1.手机跳出的二级页面点取消就不会保存修改的信息，点确认就会保存，还有怎么关掉这个页面，实现这些的代码在哪里或者是怎么实现的？

2.电视点击小图但右边的大图也会更新，实现这个逻辑的代码在哪？

3.就是js最后两段代码是有固定格式还是有方法技巧的？