HarmonyOS应用开发教程 圆角list实现

效果展示：

Hml

{{ $item.indexTxt }}

{{ $item.title }}{{ $item.desc }}

{{ $item.indexTxt }}

{{ $item.title }}{{ $item.desc }}

{{ $item.indexTxt }}

{{ $item.title }}{{ $item.desc }}

Css

.container {
    flex-direction: column;
    align-items: center;
    background-color: #5e7c85;
    padding-top: 52px;
}

.topList_corner_round_bg {
    width: 100%;
    height: 240px;
    border: 1px solid #000000;
    text-align: center;
    margin-left: 10px;
    margin-right: 10px;
    border-radius: 8px;
    divider-color: #000000;
    divider-height: 1px;
}

.middleList_corner_round_bg {
    width: 100%;
    height: 160px;
    border: 1px solid #000000;
    text-align: center;
    margin-top: 10px;
    margin-left: 10px;
    margin-right: 10px;
    border-radius: 8px;
    divider-color: #000000;
    divider-height: 1px;
}

.bottomList_corner_round_bg {
    width: 100%;
    height: 80px;
    border: 1px solid #000000;
    text-align: center;
    margin-top: 10px;
    margin-left: 10px;
    margin-right: 10px;
    border-radius: 8px;
    divider-color: #000000;
    divider-height: 1px;
}

/**
选中背景
*/

.list_corner_round_top {
    width: 100%;
    height: 80px;
    border: 1px solid #000000;
    border-top-left-radius: 7px;
    border-top-right-radius: 7px;
    background: linear-gradient(270deg, #BFEEFF, #40B9FF);
}

.list_corner_round_mid {
    width: 100%;
    height: 80px;
    border: 1px solid #000000;
    background: linear-gradient(270deg, #BFEEFF, #40B9FF);
}

.list_corner_round_bottom {
    width: 100%;
    height: 78px;
    border: 1px solid #000000;
    border-bottom-left-radius: 7px;
    border-bottom-right-radius: 7px;
    background: linear-gradient(270deg, #BFEEFF, #40B9FF);
}

.list_corner_round {
    width: 100%;
    height: 78px;
    border: 1px solid #000000;
    border-radius: 7px;
    background: linear-gradient(270deg, #BFEEFF, #40B9FF);
}

.todo_item_top {
    width: 100%;
    height: 80px;
    border: 1px solid #000000;
    border-top-left-radius: 7px;
    border-top-right-radius: 7px;
    background: linear-gradient(0deg, #FFFFFF, #FFFFFF);
}

.todo_item_mid {
    width: 100%;
    height: 80px;
    border: 1px solid #000000;
    background: linear-gradient(0deg, #FFFFFF, #FFFFFF);
}

.todo_item_bottom {
    width: 100%;
    height: 78px;
    border: 1px solid #000000;
    border-bottom-left-radius: 7px;
    border-bottom-right-radius: 7px;
    background: linear-gradient(0deg, #FFFFFF, #FFFFFF);
}

.todo_item_round {
    width: 100%;
    height: 78px;
    border: 1px solid #000000;
    border-radius: 7px;
    background: linear-gradient(0deg, #FFFFFF, #FFFFFF);
}

.item_title {
    font-size: 22px;
    text-align: left;
    margin-start: 10px;
    font-weight: 600;
}

.item_desc {
    font-size: 16px;
    margin-top: 10px;
    color: #77787b;
    font-weight: 400;
}

.div_icon {
    width: 50px;
    height: 100%;
    align-items: center;
    justify-content: center;
    margin-start: 10px;
}

.item_icon {
    height: 50px;
    width: 100%;
    align-items: center;
    border-radius: 35px;
    background-color: orange;
}

.txt_title {
    font-size: 22px;
    font-weight: 600;
}

.div_right {
    flex-direction: column;
    justify-content: center;
}

.div_arrow {
    height: 100%;
    width: 100%;
    margin-end: 10px;
    justify-content: center;
    align-items: center;
}

.item_arrow {
    margin-start: 316;
    height: 14px;
    width: 14px;
}

Js

import prompt from '@system.prompt';

var timeoutID;

const DURATION = 600;

export default {
    data: {
        topList: [{
                      title: 'title3_1',
                      desc: 'description3_1',
                      cls: 'todo_item_top',
                      iconColor: '#99FF0000',
                      txtColor: 'white',
                      indexTxt: 'R'
                  }, {
                      title: 'title3_2',
                      desc: 'description3_2',
                      cls: 'todo_item_mid',
                      iconColor: '#99FF7D00',
                      txtColor: 'white',
                      indexTxt: 'T'
                  }, {
                      title: 'title3_3',
                      desc: 'description3_3',
                      cls: 'todo_item_bottom',
                      iconColor: '#99FF00FF',
                      txtColor: 'white',
                      indexTxt: 'Y'
                  }
        ],
        middleList: [{
                         title: 'title2_1',
                         desc: 'description2_1',
                         cls: 'todo_item_top',
                         iconColor: '#9900FF00',
                         txtColor: 'white',
                         indexTxt: 'U'
                     }, {
                         title: 'title2_2',
                         desc: 'description2_2',
                         cls: 'todo_item_bottom',
                         iconColor: '#9900FFFF',
                         txtColor: 'white',
                         indexTxt: 'I'
                     }
        ],
        bottomList: [{
                         title: 'title1_1',
                         desc: 'description1_1',
                         cls: 'todo_item_round',
                         iconColor: '#990000FF',
                         txtColor: 'white',
                         indexTxt: 'O'
                     }
        ]
    },
    onTopListItemClick($idx) {
        console.info("id = " + $idx);
        let index = $idx;
        let size = this.topList.length;
        if (index == -1) {
            for (let i = 0; i < size; i++) {
                if (i == 0) {
                    this.topList[i].cls = "todo_item_top"
                } else if (i == size - 1) {
                    this.topList[i].cls = "todo_item_bottom"
                } else {
                    this.topList[i].cls = "todo_item_mid"
                }
            }
            return;
        }
        this.onMiddleListItemClick(-1);
        this.onBottomListItemClick(-1);
        prompt.showToast({
            message: this.topList[index].title
        });
        for (let i = 0; i < size; i++) {
            if (index == i) {
                if (i == 0) {
                    this.topList[i].cls = "list_corner_round_top"
                } else if (i == size - 1) {
                    this.topList[i].cls = "list_corner_round_bottom"
                } else {
                    this.topList[i].cls = "list_corner_round_mid"
                }

                clearTimeout(timeoutID);
                timeoutID = setTimeout(this.clearTopItemBg, DURATION);
            } else {
                if (i == 0) {
                    this.topList[i].cls = "todo_item_top"
                } else if (i == size - 1) {
                    this.topList[i].cls = "todo_item_bottom"
                } else {
                    this.topList[i].cls = "todo_item_mid"
                }
            }
        }
    },
    onMiddleListItemClick($idx) {
        console.info("id = " + $idx);
        let index = $idx;
        if (index == -1) {
            for (let i = 0; i < 2; i++) {
                if (i == 0) {
                    this.middleList[i].cls = "todo_item_top"
                } else {
                    this.middleList[i].cls = "todo_item_bottom"
                }
            }
            return;
        }
        this.onTopListItemClick(-1);
        this.onBottomListItemClick(-1)
        prompt.showToast({
            message: this.middleList[index].title
        });
        for (let i = 0; i < 2; i++) {
            if (index == i) {
                if (i == 0) {
                    this.middleList[i].cls = "list_corner_round_top"
                } else {
                    this.middleList[i].cls = "list_corner_round_bottom"
                }

                clearTimeout(timeoutID);
                timeoutID = setTimeout(this.clearMiddleItemBg, DURATION);
            } else {
                if (i == 0) {
                    this.middleList[i].cls = "todo_item_top"
                } else {
                    this.middleList[i].cls = "todo_item_bottom"
                }
            }
        }
    },
    onBottomListItemClick($idx) {
        console.info("id = " + $idx);
        let index = $idx;
        if (index == -1) {
            this.bottomList[0].cls = "todo_item_round"
            return;
        }
        this.onTopListItemClick(-1);
        this.onMiddleListItemClick(-1);
        prompt.showToast({
            message: this.bottomList[index].title
        });
        for (let i = 0; i < 2; i++) {
            this.bottomList[0].cls = "list_corner_round"
            clearTimeout(timeoutID);
            timeoutID = setTimeout(this.clearBottomItemBg, DURATION);
        }
    },
    clearTopItemBg() {
        this.onTopListItemClick(-1);
    },
    clearMiddleItemBg() {
        this.onMiddleListItemClick(-1);
    },
    clearBottomItemBg() {
        this.onBottomListItemClick(-1);
    }
}