index.js
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import { VantComponent } from '../common/component';
VantComponent({
classes: ['title-class'],
props: {
title: String,
fixed: {
type: Boolean,
observer: 'setHeight',
},
placeholder: {
type: Boolean,
observer: 'setHeight',
},
leftText: String,
rightText: String,
customStyle: String,
leftArrow: Boolean,
border: {
type: Boolean,
value: true,
},
zIndex: {
type: Number,
value: 1,
},
safeAreaInsetTop: {
type: Boolean,
value: true,
},
},
data: {
statusBarHeight: 0,
height: 44,
baseStyle: '',
},
created() {
const { statusBarHeight } = wx.getSystemInfoSync();
const { safeAreaInsetTop, zIndex } = this.data;
const paddingTop = safeAreaInsetTop ? statusBarHeight : 0;
const baseStyle = `z-index: ${zIndex};padding-top: ${paddingTop}px;`;
this.setData({
statusBarHeight,
height: 44 + statusBarHeight,
baseStyle,
});
},
mounted() {
this.setHeight();
},
methods: {
onClickLeft() {
this.$emit('click-left');
},
onClickRight() {
this.$emit('click-right');
},
setHeight() {
if (!this.data.fixed || !this.data.placeholder) {
return;
}
wx.nextTick(() => {
this.getRect('.van-nav-bar').then((res) => {
this.setData({ height: res.height });
});
});
},
},
});