Path

In Skia, paths are semantically identical to SVG Paths.

Name	Type	Description
path	SkPath or string	Path to draw. Can be a string using the SVG Path notation or an object created with Skia.Path.Make().
start	number	Trims the start of the path. Value is in the range [0, 1] (default is 0).
end	number	Trims the end of the path. Value is in the range [0, 1] (default is 1).
stroke	StrokeOptions	Turns this path into the filled equivalent of the stroked path. This will fail if the path is a hairline. StrokeOptions describes how the stroked path should look. It contains three properties: width, strokeMiterLimit and, precision

React Native Skia also provides Path Effects and Path hooks for animations.

Using SVG Notation

import {Canvas, Path} from "@shopify/react-native-skia";

const SVGNotation = () => {
  return (
    <Canvas style={{ flex: 1 }}>
      <Path
        path="M 128 0 L 168 80 L 256 93 L 192 155 L 207 244 L 128 202 L 49 244 L 64 155 L 0 93 L 88 80 L 128 0 Z"
        color="lightblue"
      />
    </Canvas>
  );
};

Using Path Object

import {Canvas, Path, Skia} from "@shopify/react-native-skia";

const path = Skia.Path.Make();
path.moveTo(128, 0);
path.lineTo(168, 80);
path.lineTo(256, 93);
path.lineTo(192, 155);
path.lineTo(207, 244);
path.lineTo(128, 202);
path.lineTo(49, 244);
path.lineTo(64, 155);
path.lineTo(0, 93);
path.lineTo(88, 80);
path.lineTo(128, 0);
path.close();

const PathDemo = () => {
  return (
    <Canvas style={{ flex: 1 }}>
      <Path
        path={path}
        color="lightblue"
      />
    </Canvas>
  );
};

Trim

import {Canvas, Path} from "@shopify/react-native-skia";

const SVGNotation = () => {
  return (
    <Canvas style={{ flex: 1 }}>
      <Path
        path="M 128 0 L 168 80 L 256 93 L 192 155 L 207 244 L 128 202 L 49 244 L 64 155 L 0 93 L 88 80 L 128 0 Z"
        color="lightblue"
        style="stroke"
        strokeJoin="round"
        strokeWidth={5}
        // We trim the first and last quarter of the path
        start={0.25}
        end={0.75}
      />
    </Canvas>
  );
};

Fill Type

The fillType property defines the algorithm to use to determine the inside part of a shape. Possible values are: winding, evenOdd, inverseWinding, inverseEvenOdd. Default value is winding.

import {Canvas, Skia, Fill, Path} from "@shopify/react-native-skia";

const star = () => {
  const R = 115.2;
  const C = 128.0;
  const path = Skia.Path.Make();
  path.moveTo(C + R, C);
  for (let i = 1; i < 8; ++i) {
    const a = 2.6927937 * i;
    path.lineTo(C + R * Math.cos(a), C + R * Math.sin(a));
  }
  return path;
};

export const HelloWorld = () => {
  const path = star();
  return (
    <Canvas style={{ flex: 1 }}>  
      <Fill color="white" />
      <Path path={path} style="stroke" strokeWidth={4} color="#3EB489"/>
      <Path path={path} color="lightblue" fillType="evenOdd" />
    </Canvas>
  );
};