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    @uiw/react-amap-text

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。


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Text 文本标注

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

基本用法

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

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Last updated on 05 Apr 2024

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