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<template> <view class="u-navbar"> <view class="u-navbar__placeholder" v-if="fixed && placeholder" :style="{ height: $u.addUnit($u.getPx(height) + $u.sys().statusBarHeight,'px'), }" ></view> <view :class="[fixed && 'u-navbar--fixed']"> <u-status-bar v-if="safeAreaInsetTop" :bgColor="bgColor" ></u-status-bar> <view class="u-navbar__content" :class="[border && 'u-border-bottom']" :style="{ height: $u.addUnit(height), backgroundColor: bgColor, }" > <view class="u-navbar__content__left" hover-class="u-navbar__content__left--hover" hover-start-time="150" @tap="leftClick" > <slot name="left"> <u-icon v-if="leftIcon" :name="leftIcon" :size="leftIconSize" :color="leftIconColor" ></u-icon> <text v-if="leftText" :style="{ color: leftIconColor }" class="u-navbar__content__left__text" >{{ leftText }}</text> </slot> </view> <slot name="center"> <text class="u-line-1 u-navbar__content__title" :style="[{ width: $u.addUnit(titleWidth), }, $u.addStyle(titleStyle)]" >{{ title }}</text> </slot> <view class="u-navbar__content__right" v-if="$slots.right || rightIcon || rightText" @tap="rightClick" > <slot name="right"> <u-icon v-if="rightIcon" :name="rightIcon" size="20" ></u-icon> <text v-if="rightText" class="u-navbar__content__right__text" >{{ rightText }}</text> </slot> </view> </view> </view> </view> </template>
<script> import props from './props.js'; /** * Navbar 自定义导航栏 * @description 此组件一般用于在特殊情况下,需要自定义导航栏的时候用到,一般建议使用uni-app带的导航栏。 * @tutorial https://www.uviewui.com/components/navbar.html
* @property {Boolean} safeAreaInsetTop 是否开启顶部安全区适配 (默认 true ) * @property {Boolean} placeholder 固定在顶部时,是否生成一个等高元素,以防止塌陷 (默认 false ) * @property {Boolean} fixed 导航栏是否固定在顶部 (默认 false ) * @property {Boolean} border 导航栏底部是否显示下边框 (默认 false ) * @property {String} leftIcon 左边返回图标的名称,只能为uView自带的图标 (默认 'arrow-left' ) * @property {String} leftText 左边的提示文字 * @property {String} rightText 右边的提示文字 * @property {String} rightIcon 右边返回图标的名称,只能为uView自带的图标 * @property {String} title 导航栏标题,如设置为空字符,将会隐藏标题占位区域 * @property {String} bgColor 导航栏背景设置 (默认 '#ffffff' ) * @property {String | Number} titleWidth 导航栏标题的最大宽度,内容超出会以省略号隐藏 (默认 '400rpx' ) * @property {String | Number} height 导航栏高度(不包括状态栏高度在内,内部自动加上)(默认 '44px' ) * @property {String | Number} leftIconSize 左侧返回图标的大小(默认 20px ) * @property {String | Number} leftIconColor 左侧返回图标的颜色(默认 #303133 ) * @property {Boolean} autoBack 点击左侧区域(返回图标),是否自动返回上一页(默认 false ) * @property {Object | String} titleStyle 标题的样式,对象或字符串 * @event {Function} leftClick 点击左侧区域 * @event {Function} rightClick 点击右侧区域 * @example <u-navbar title="剑未配妥,出门已是江湖" left-text="返回" right-text="帮助" @click-left="onClickBack" @click-right="onClickRight"></u-navbar> */ export default { name: 'u-navbar', mixins: [uni.$u.mpMixin, uni.$u.mixin, props], data() { return {
} }, methods: { // 点击左侧区域
leftClick() { // 如果配置了autoBack,自动返回上一页
this.$emit('leftClick') if(this.autoBack) { uni.navigateBack() } }, // 点击右侧区域
rightClick() { this.$emit('rightClick') }, } } </script>
<style lang="scss" scoped> @import "../../libs/css/components.scss";
.u-navbar {
&--fixed { position: fixed; left: 0; right: 0; top: 0; z-index: 11; }
&__content { @include flex(row); align-items: center; height: 44px; background-color: #9acafc; position: relative; justify-content: center;
&__left, &__right { padding: 0 13px; position: absolute; top: 0; bottom: 0; @include flex(row); align-items: center; }
&__left { left: 0; &--hover { opacity: 0.7; }
&__text { font-size: 15px; margin-left: 3px; } }
&__title { text-align: center; font-size: 16px; color: $u-main-color; }
&__right { right: 0;
&__text { font-size: 15px; margin-left: 3px; } } } } </style>
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