users/uni_modules/uview-ui/components/u-navbar/u-navbar.vue

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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>