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@lbh7/react-amap-text

v1.0.7

Published

点标记是用来标示某个位置点信息的一种地图要素,本章介绍如何在地图图面使用点标记。

Downloads

7

Readme

Text 文本标注

Buy me a coffee npm version Downloads

点标记是用来标示某个位置点信息的一种地图要素,本章介绍如何在地图图面使用点标记。

import { Text } from '@lbh7/react-amap';
// 或者单独安装使用
import { Text } from '@lbh7/react-amap-text';

基本用法

import ReactDOM from 'react-dom';
import React, { useState, useRef } from 'react';
import { Map, APILoader, Text } from '@lbh7/react-amap';

const Example = () => {
  const [show, setShow] = useState(true);
  return (
    <>
      <button onClick={() => setShow(!show)}>
        {show ? '隐藏' : '显示'}
      </button>
      <div style={{ width: '100%', height: '300px' }}>
        <Map zoom={13} center={[116.4, 39.92]}>
          <Text
            text="纯文本标记"
            anchor="center"
            draggable={true}
            cursor="pointer"
            angle={10}
            visiable={show}
            style={{
              'padding': '.75rem 1.25rem',
              'margin-bottom': '1rem',
              'border-radius': '.25rem',
              'background-color': 'white',
              'width': '15rem',
              'border-width': 0,
              'box-shadow': '0 2px 6px 0 rgba(114, 124, 245, .5)',
              'text-align': 'center',
              'font-size': '20px',
              'color': 'blue'
            }}
            // title="北京市"
            position={new AMap.LngLat(116.396923,39.918203)}
          />
        </Map>
      </div>
    </>
  );
}

const Mount = () => (
  <APILoader akey="a7a90e05a37d3f6bf76d4a9032fc9129">
    <Example />
  </APILoader>
);

export default Mount;

通过 children 定义 text

定义 children 定义的 text props 将失效。

import ReactDOM from 'react-dom';
import React, { useState, useRef } from 'react';
import { Map, APILoader, Text } from '@lbh7/react-amap';

const Example = () => {
  const [show, setShow] = useState(true);
  return (
    <>
      <button onClick={() => setShow(!show)}>
        {show ? '隐藏' : '显示'}
      </button>
      <div style={{ width: '100%', height: '300px' }}>
        <Map zoom={13} center={[116.4, 39.92]}>
          <Text
            text="纯文本标记2"
            anchor="center"
            draggable={true}
            cursor="pointer"
            className="test-text"
            angle={10}
            visiable={show}
            style={{
              'padding': '.75rem 1.25rem',
              'margin-bottom': '1rem',
              'border-radius': '.25rem',
              'background-color': 'white',
              'width': '15rem',
              'border-width': 0,
              'box-shadow': '0 2px 6px 0 rgba(114, 124, 245, .5)',
              'text-align': 'center',
              'font-size': '20px',
              'color': 'blue'
            }}
            // title="北京市"
            position={new AMap.LngLat(116.396923,39.918203)}
          >
            <div style={{ color: 'red' }}>
              纯文本标记3
            </div>
          </Text>
        </Map>
      </div>
    </>
  );
}

const Mount = () => (
  <APILoader akey="a7a90e05a37d3f6bf76d4a9032fc9129">
    <Example />
  </APILoader>
);

export default Mount;

TypeScript 中 Ref 类型定义

由于 text 参数与返回的 text 冲突,定义类型参考如下实例

import ReactDOM from 'react-dom';
import React, { useEffect, useRef } from 'react';
import { Text, TextProps } from './index';

function Demo() {
  const textRef = useRef<Omit<TextProps, 'text'> & { text?: AMap.Text }>(null);
  useEffect(() => {
    if (textRef.current && textRef.current.text) {
      textRef.current.text.setStyle({});
    }
  }, []);
  return (
    <>
      <Text ref={textRef} text="test" />
      <Text
        ref={(instance) => {
          if (instance && instance.map && instance.text) {
            const bounds = instance.map?.getBounds()
            const txt = instance.text.getBounds();
          }
        }}
        text="test"
      />
    </>
  );
}

Props

更多参数设置

| 参数 | 说明 | 类型 | 默认值 | |--------- |-------- |--------- |-------- | | visiable | 覆盖物是否可见。 | boolean | - | | text | 标记显示的文本内容。 | string | - | | children | 标记显示的文本内容,text 参数将失效。 | string | - |

事件

事件类型文档

| 参数 | 说明 | 类型 | | ---- | ---- | ---- | | onDblClick | 鼠标左键双击事件 | (event: MapsEvent): void; | | onRightClick | 鼠标右键单击事件 | (event: MapsEvent): void; | | onMouseMove | 鼠标移动 | (event: MapsEvent): void; | | onMouseOver | 鼠标移近点标记时触发事件 | (event: MapsEvent): void; | | onMouseOut | 鼠标移出点标记时触发事件 | (event: MapsEvent): void; | | onMouseDown | 鼠标在点标记上按下时触发事件 | (event: MapsEvent): void; | | onMouseUp | 鼠标在点标记上按下后抬起时触发事件 | (event: MapsEvent): void; | | onDragStart | 开始拖拽点标记时触发事件 | (event: MapsEvent): void; | | onDragging | 鼠标拖拽移动点标记时触发事件 | (event: MapsEvent): void; | | onDragEnd | 点标记拖拽移动结束触发事件 | (event: MapsEvent): void; | | onClick | 鼠标左键单击事件 | (event: MapsEvent): void; | | onMoving | 点标记在执行 | (obj: { passedPath:Array<LngLat> }): void; | | onMoveEnd | 点标记执行moveTo动画结束时触发事件,也可以由moveAlong方法触发 | (): void; | | onMoveAlong | 点标记执行moveAlong动画一次后触发事件 | (): void; | | onTouchStart | 触摸开始时触发事件,仅适用移动设备 | (event: MapsEvent): void; | | onTouchMove | 触摸移动进行中时触发事件,仅适用移动设备 | (event: MapsEvent): void; | | onTouchEnd | 触摸结束时触发事件,仅适用移动设备 | (event: MapsEvent): void; |