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166 lines
2.7 KiB
Markdown
166 lines
2.7 KiB
Markdown
# Navigation
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## 导航和路由
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在 UniApp 中使用 uCharts 组件进行页面导航和路由管理。
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### 使用 UniApp 导航 API
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#### 页面跳转
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```javascript
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// 保留当前页面,跳转到应用内的某个页面
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uni.navigateTo({
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url: '/pages/chart/chart?type=line'
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})
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// 关闭当前页面,跳转到应用内的某个页面
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uni.redirectTo({
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url: '/pages/chart/chart?type=bar'
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})
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// 返回上一页面
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uni.navigateBack({
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delta: 1
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})
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```
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#### 使用按钮进行跳转
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```vue
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<template>
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<view>
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<button @click="goToChart">查看图表</button>
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</view>
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</template>
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<script>
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export default {
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methods: {
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goToChart() {
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uni.navigateTo({
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url: '/pages/chart/chart?type=line'
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})
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}
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}
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}
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</script>
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```
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### 页面传参
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#### 传递参数
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```javascript
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// 跳转并传递参数
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uni.navigateTo({
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url: '/pages/chart/chart?type=line&title=折线图'
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})
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```
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#### 接收参数
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```vue
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<template>
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<view>
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<qiun-data-charts
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:type="chartType"
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:opts="opts"
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:chartData="chartData"
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/>
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</view>
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</template>
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<script>
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export default {
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data() {
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return {
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chartType: 'line',
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chartData: {},
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opts: {}
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}
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},
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onLoad(options) {
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this.chartType = options.type || 'line'
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this.loadChartData()
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},
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methods: {
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loadChartData() {
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// 根据 chartType 加载对应的图表数据
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}
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}
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}
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</script>
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```
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### TabBar 导航
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#### 使用原生 TabBar
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```json
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{
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"tabBar": {
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"color": "#7A7E83",
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"selectedColor": "#409EFF",
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"borderStyle": "black",
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"backgroundColor": "#ffffff",
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"list": [
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{
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"pagePath": "pages/index/index",
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"text": "首页"
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},
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{
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"pagePath": "pages/chart/chart",
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"text": "图表"
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}
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]
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}
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}
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```
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### 图表页面导航示例
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```vue
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<template>
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<view class="container">
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<view class="nav-buttons">
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<button @click="goToChart('line')">折线图</button>
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<button @click="goToChart('bar')">柱状图</button>
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<button @click="goToChart('pie')">饼图</button>
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</view>
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<qiun-data-charts
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:type="chartType"
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:opts="opts"
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:chartData="chartData"
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/>
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</view>
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</template>
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<script>
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export default {
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data() {
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return {
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chartType: 'line',
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chartData: {},
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opts: {}
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}
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},
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methods: {
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goToChart(type) {
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uni.navigateTo({
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url: `/pages/chart/chart?type=${type}`
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})
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}
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}
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}
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</script>
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```
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## 注意事项
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1. **路径格式**:路径必须以 `/` 开头
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2. **参数传递**:URL 参数需要编码
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3. **页面栈**:注意页面栈限制(最多 10 层)
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4. **数据加载**:跳转后及时加载图表数据
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5. **性能优化**:避免频繁跳转导致性能问题
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