Question

我想在ScrollView中使用WebView作为我的本机应用程序。但是如果我这样做，我就无法滚动我的webview，除非我在scrollview上禁用滚动。但是，我需要scrollview和webview中的滚动。关于如何实现这一目标的任何建议或解决方案？

Answer 1

尝试下一个代码

<ScrollView>
        <Text>Text before ScrollView</Text>
        <WebView
          source={{ uri: 'https://stackoverflow.com/questions/43781301/react-native-how-do-i-scroll-a-webview-inside-scrollview-for-android' }}
          style={{
            marginTop: 20,
            height: 100,
          }}
        />
        <Text >Text after ScrollView</Text>
        <WebView
          source={{ uri: 'https://stackoverflow.com/questions/43781301/react-native-how-do-i-scroll-a-webview-inside-scrollview-for-android' }}
          style={{
            marginTop: 20,
            height: 100,
          }}
        />
      </ScrollView>

Answer 2

最近2-3天，我也在互联网上搜索此问题，为此我找到了很棒的解决方案...

npm install --save react-native-webview-autoheight

安装此文件之后

import MyWebView from 'react-native-webview-autoheight';

<ScrollView style={{ flex: 1, backgroundColor: 'white' }}>
            <View style={{ flex: 1, flexDirection: 'column', backgroundColor: 'white' }} pointerEvents={'none'}>

                <Text>Hi I am at top</Text>
                <MyWebView 
                //sets the activity indicator before loading content
                    startInLoadingState={true}
                    source={{
                        uri: "https://stackoverflow.com/questions/43781301/react-native-how-do-i-scroll-a-webview-inside-scrollview-for-android"

                    }}/>
                    <Text>Hi I am at bottom</Text>
            </View>
        </ScrollView>

对我来说很好。

Answer 3

我修复了Webview中的错误滚动ScrollView。如果不仅onTouchEvent捕获事件Webview调用onTouch，我将覆盖功能requestDisallowInterceptTouchEvent(true);。

您可以尝试我的回购 https://github.com/thepday12/react-native-webview

package.json

“ react-native-webview”：“ https://github.com/thepday12/react-native-webview”，
使用

从“ react-native-webview”导入WebView；
来自https://github.com/react-native-community/react-native-webview/的来源吗？

Answer 4

使用TouchyWebView.java

public class TouchyWebView extends WebView {
public TouchyWebView(Context context) {
    super(context);
}

public TouchyWebView(Context context, AttributeSet attrs) {
    super(context, attrs);
}

public TouchyWebView(Context context, AttributeSet attrs, int defStyleAttr) {
    super(context, attrs, defStyleAttr);
}

@Override
public boolean onTouchEvent(MotionEvent event) {
    requestDisallowInterceptTouchEvent(true);
    return super.onTouchEvent(event);
}

并在布局中

<yourpachagename.TouchyWebView
                android:id="@+id/webView"
                android:layout_width="match_parent"
                android:layout_height="match_parent" />

Answer 5

尝试此代码

heightValue = 1000 // putting 100 will let the Webview scroll normally.

<View> <Text> Viewtiful </Text> </View>  

<WebView
    source={{uri: 'www.reddit.com'}}
    style={{height:heightValue}}
/>

找到了这个here.

Answer 6

这救了我：https://github.com/archriss/react-native-render-html/

      [...] 
      import { ScrollView, Dimensions, Button } from 'react-native';

      import HTML from 'react-native-render-html';
      [...] 

      <ScrollView>
        <Text>{strings.title}</Text>
        <HTML
          html={htmlText}
          imagesMaxWidth={Dimensions.get('window').width}
          baseFontStyle={styles.html}
        />
        <Button
          style={styles.button}
          onButtonPressed={this.handleAcceptPress}
          text={strings.accept}
        />
      </ScrollView>

Answer 7

这解决了我所有的问题

    npm install react-native-autoheight-webview react-native-webview

    import AutoHeightWebView from 'react-native-autoheight-webview'
    import { Dimensions } from 'react-native'

    
    <AutoHeightWebView
        style={{ width: Dimensions.get('window').width - 15, marginTop: 35 }}
        customScript={`document.body.style.background = 'lightyellow';`}
        customStyle={`
          * {
            font-family: 'Times New Roman';
          }
          p {
            font-size: 16px;
          }
        `}
        onSizeUpdated={size => console.log(size.height)}
        files={[{
            href: 'cssfileaddress',
            type: 'text/css',
            rel: 'stylesheet'
        }]}
        source={{ html: `<p style="font-weight: 400;font-style: normal;font-size: 21px;line-height: 1.58;letter-spacing: -.003em;">Tags are great for describing the essence of your story in a single word or phrase, but stories are rarely about a single thing. <span style="background-color: transparent !important;background-image: linear-gradient(to bottom, rgba(146, 249, 190, 1), rgba(146, 249, 190, 1));">If I pen a story about moving across the country to start a new job in a car with my husband, two cats, a dog, and a tarantula, I wouldn’t only tag the piece with “moving”. I’d also use the tags “pets”, “marriage”, “career change”, and “travel tips”.</span></p>` }}
        scalesPageToFit={true}
        viewportContent={'width=device-width, user-scalable=no'}
        /*
        other react-native-webview props
        */
      />

Answer 8

如果您不想使用任何 3rd 方库，这里是您的解决方案。使用此修改您的 WebView 代码。

<WebView
    originWhitelist={['*']}
    scrollEnabled={false}
    onMessage={onMessage}
    onNavigationStateChange={navigationChanged}
injectedJavaScript="window.ReactNativeWebView.postMessage(Math.max(document.body.offsetHeight, document.body.scrollHeight));"
source={{html: htmlCode}}
 />

添加此代码后，您需要为 onMessage 创建一个方法，通过该方法您将获得 WebView 内容的高度。

const[webViewHeight, setWebViewHeight] = useState(0);
const onMessage = event => {
    setWebViewHeight(Number(event.nativeEvent.data));
};

现在，您获得了 webview 的高度，您可以简单地将该高度传递给您的 webview 样式道具。即，

<块引用>

style={{height: webViewHeight}}

仅此而已。你让 webview 完全与滚动视图一起工作。如果您有任何疑问，请随时问我。

react-native - 如何在scrollview中滚动Webview for android？

8 个答案: