react-native-svg 中的 LinearGradient 不起作用

Answer 1

我认为@enxaneta是对的，

clip-path

似乎不存在于

react-native-svg

请参阅文档，您可以在此处的文档中找到react-native-svg #LinearGradient

我认为你应该这样引用它：

        <Rect class="a" fill="url(#yourGradientId)" stroke='#707070' width="375" height="507" transform="translate(0 160)" d="M0 0h375v507H0z"/>

其中

fill

应引用您的渐变 id，即

fill=url(#b)

我使用

<Path>

实现了以下结果

注意：我通过使用两个相互重叠的形状来实现这一点：

1. 使用

   react-native-linear-gradient

实现背景渐变的组件
2. 以及来自

   react-native-linear-gradient

的 LinearGradient

请参考以下代码。

上面例子的代码

import Svg, { Path, Defs, LinearGradient, Stop } from 'react-native-svg';
import Gradient from 'react-native-linear-gradient'
const { width, height } = Dimensions.get('window')

      <Gradient style={{height: height * .25,}} 
        colors={ ['#FFD080', 'red'] }
        start={{ x: 0, y: 0}}
        end={{ x:1, y: 1}}
        locations={[0.18, 1, 1]}>
          
            
        <Svg
            height={height * .44}
            width={width}
            viewBox="0 0 1440 320"
            style={{ position: 'relative', top: height * .069 }}
          >
          <Defs>
          <LinearGradient id="path" x1="0" y1="0" x2="1" y2="1">
              <Stop offset="0" stopColor="#FFD080" stopOpacity="1" />
              <Stop offset="1" stopColor="red" stopOpacity="1" />
            </LinearGradient>
          </Defs>
            <Path fill="url(#path)"
               d="M0,96L48,133.3C96,171,192,245,288,229.3C384,213,480,107,576,74.7C672,43,768,85,864,133.3C960,181,1056,235,1152,234.7C1248,235,1344,181,1392,154.7L1440,128L1440,0L1392,0C1344,0,1248,0,1152,0C1056,0,960,0,864,0C768,0,672,0,576,0C480,0,384,0,288,0C192,0,96,0,48,0L0,0Z"/>
        </Svg>
        </Gradient>

Answer 2

我找到了一个解决方案，我不使用具有渐变的 svgs，而是将 SVG 转换为 Lottie 文件。效果很好，作为额外的优势，我们可以将 SVG 转换为简单的动画:)

Answer 3

效果很好：

import React from "react";
import { View, Text } from "react-native";
import { Polygon, Svg, LinearGradient, Stop, Defs, G, Use,} from "react-native-svg";

const Triangle = () => {
  return (
    <Svg viewBox="0 0 386 386">
        <Defs>
            <LinearGradient id="grad" x1="0" y1="0" x2="1" y2="0">
                <Stop offset="0" stopColor="#000" stopOpacity="0.2" />
                <Stop offset="1"         stopColor="#71D4EB" stopOpacity="0.1" />
            </LinearGradient>
        <G id="polygon">
            <Polygon
            points={"193,193 0,386 0,0"}
            fill="url(#grad)"
            strokeWidth={0}
            />
        </G>
      </Defs>

        <Use href="#polygon" x="0" y="0" />
        <Use href="#polygon" x="0" y="0" rotation="180" origin="193, 193" />
        <Use href="#polygon" x="0" y="0" rotation="90" origin="193, 193" />
        <Use href="#polygon" x="0" y="0" rotation="270" origin="193, 193" />
    </Svg>
  );
};

export default Triangle;