使用React Signature Canvas非常简单。首先,我们需要在项目中安装React Signature Canvas的依赖项。可以通过运行以下命令来实现: npm install react-signature-canvas 安装完成后,我们可以在我们的React组件中引入React SignatureCanvas。假设我们的组件名为SignatureCanvasCompo
react-signature-canvas A React wrapper component around signature_pad. Originally, this was just an unopinionated fork of react-signature-pad that did not impose any styling or wrap any other unwanted elements around your canvas -- it's just a wrapper around a single canvas element! Hence the...
clear():void, clears the canvas using thebackgroundColorprop fromDataURL(base64String, options):void, writes a base64 image to canvas toDataURL(mimetype, encoderOptions):base64string, returns the signature image as a data URL fromData(pointGroupArray):void, draws signature image from an array...
TypeScript support Installation For React Native ≥ 0.60.0 or Expo SDK ≥ 35.0.0 yarn add react-native-signature-canvas or npm install --save react-native-signature-canvas This package depends onreact-native-webview. If you're using React Native CLI (not Expo), you'll need to install rea...
在React TypeScript中使用SignaturePad,可以通过以下步骤进行: 1. 安装依赖:首先,需要安装SignaturePad库和相关的类型声明文件。可以使用以下命令进行安装: ...
经过上章介绍,接下来我们尝试在react+typescript项目中,做一个简单的圆环表 1. 首先我们在项目中建起一个tsx文件, 并引入它的外部样式(使用css模块化) // cricleClock.tsx 文件importstylesfrom'./index.module.scss'exportdefaultfunctionCricleClock(){return(<div className={styles.container}><canvas></...
实现画布部分基本参考React Component to draw on a page using Hooks and Typescript该文提供完整代码及介绍,十分详细,如果你的英文不错,你可以直接看这篇文章跳过本节译文。 创建组件 我们需要做的第一件事是创建一个 Canvas 组件。 画布需要占用一些空间,我们希望任何父组件都能够覆盖这些空间,所以我们将添加宽度...
react-signature-canvas A React wrapper component around signature_pad. Originally, this was just an unopinionated fork of react-signature-pad that did not impose any styling or wrap any other unwanted elements around your canvas -- it's just a wrapper around a single canvas element! Hence the...
TypeScript support Installation For React Native ≥ 0.60.0 or Expo SDK ≥ 35.0.0 yarn add react-native-signature-canvas or npm install --save react-native-signature-canvas This package depends onreact-native-webview. If you're using React Native CLI (not Expo), you'll need to install rea...
因此，在赋值之前，您需要确保结果不为空。另外，我猜你想要确保它是CanvasRenderingContext2D类型，而不...