zhaojs
2023-06-26 1775cbad790e5ae2ff0fa8620dbcb3882ab1a7f1
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<template>
    <view class="u-tips" :class="['u-' + type, isShow ? 'u-tip-show' : '']" :style="{
        top: navbarHeight + 'px',
        zIndex: uZIndex
    }">{{ title }}</view>
</template>
 
<script>
    /**
     * topTips 顶部提示
     * @description 该组件一般用于页面顶部向下滑出一个提示,尔后自动收起的场景。
     * @tutorial https://www.uviewui.com/components/topTips.html
     * @property {String Number} navbar-height 导航栏高度(包含状态栏高度在内),单位PX
     * @property {String Number} z-index z-index值(默认975)
     * @example <u-top-tips ref="uTips"></u-top-tips>
     */
    export default {
        name: "u-top-tips",
        props: {
            // 导航栏高度,用于提示的初始化
            navbarHeight: {
                type: [Number, String],
                // #ifndef H5
                default: 0,
                // #endif
                // #ifdef H5
                default: 44,
                // #endif
            },
            // z-index值
            zIndex: {
                type: [Number, String],
                default: ''
            }
        },
        data() {
            return {
                timer: null, // 定时器
                isShow: false, // 是否显示消息组件
                title: '', // 组件中显示的消息内容
                type: 'primary', // 消息的类型(颜色不同),primary,success,error,warning,info
                duration: 2000, // 组件显示的时间,单位为毫秒
            };
        },
        computed: {
            uZIndex() {
                return this.zIndex ? this.zIndex : this.$u.zIndex.topTips;
            }
        },
        methods: {
            show(config = {}) {
                // 先清除定时器(可能是上一次定义的,需要清除了再开始新的)
                clearTimeout(this.timer);
                // 时间,内容,类型主题(type)等参数
                if (config.duration) this.duration = config.duration;
                if (config.type) this.type = config.type;
                this.title = config.title;
                this.isShow = true;
                // 倒计时
                this.timer = setTimeout(() => {
                    this.isShow = false;
                    clearTimeout(this.timer);
                    this.timer = null;
                }, this.duration);
            }
        }
    };
</script>
 
<style lang="scss" scoped>
    @import "../../libs/css/style.components.scss";
    
    view {
        box-sizing: border-box;
    }
 
    // 顶部弹出类型样式
    .u-tips {
        width: 100%;
        position: fixed;
        z-index: 1;
        padding: 20rpx 30rpx;
        color: #FFFFFF;
        font-size: 28rpx;
        left: 0;
        right: 0;
        display: flex;
        align-items: center;
        justify-content: center;
        opacity: 0;
        // 此处为最核心点,translateY(-100%)意味着将其从Y轴隐藏(隐藏到顶部(h5)或者说导航栏(app)下面)
        transform: translateY(-100%);
        transition: all 0.35s linear;
    }
 
    .u-tip-show {
        transform: translateY(0);
        opacity: 1;
        z-index: 99;
    }
 
    .u-primary {
        background: $u-type-primary;
    }
 
    .u-success {
        background: $u-type-success;
    }
 
    .u-warning {
        background: $u-type-warning;
    }
 
    .u-error {
        background: $u-type-error;
    }
 
    .u-info {
        background: $u-type-info;
    }
</style>