Rendering Local HTML with local styling and scripts in React Native Webview

I am having trouble loading a local HTML, CSS, and JS file in my React Native webview. The CSS is not being applied to the HTML. Here is my folder structure:

https://i.sstatic.net/mqYT9.png

My HTML file, along with CSS, images, and JS file are all placed in the following app folder structure:

src --> html --> demo --> paste all files inside this directory. Refer to the image below:

https://i.sstatic.net/m85wv.png

Here is how I am using the HTML in my screen:

let demoHtmlData = require('../../../html/demo/demo.html')
<WebView
  style={{flex: 1}}
  source={demoHtmlData}
/>

Although the HTML loads successfully, the CSS styles such as colors are not being applied. Below is a snippet of the head section from the HTML file:

<head>

<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=0">
<title>VIVJOA®</title>
<meta name="apple-mobile-web-app-status-bar-style" content="#7D5895">
<meta name="theme-color" content="#7D5895" />
<link href="css/style.css" rel="stylesheet">
</head>

The CSS file "css/style.css" specified in the HTML is not being applied in the webview. Does anyone have any suggestions on how to resolve this issue?

javascripthtmlcssreact-nativewebview

Answer №1

To ensure compatibility with Android, place your HTML and CSS files in the android_asset folder within the Android directory. For iOS, place them inside the resources folder within the ios directory.

if(isAndroid){
  return (
      <WebView
        style={{flex: 1}}
        originWhitelist={['*']}
        source={{uri:'file:///android_asset/index.html'}}
        style={{ marginTop: 20 }}
        javaScriptEnabled={true}
        domStorageEnabled={true}
      />
  )
}else{
  return(
    <WebView
      style={{flex: 1}}
      originWhitelist={['*']}
      source={'./resources/index.html'}
      style={{ marginTop: 20 }}
      javaScriptEnabled={true}
      domStorageEnabled={true}
    />
  );
}

For more information, visit: WebView Html load from local

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