react-native-webview 在调用时使应用程序崩溃

Question

我正在使用 react-native-webview 库来加载网页，它在调试中运行良好，但是当我创建发布版本时。然后单击选项卡加载 webview ，应用程序崩溃。以下是错误。最后我也附上了错误跟踪。

我正在使用 react-native: "0.62.0" react-native-webview : "^9.0.2",

这是当我单击按钮加载 webview 屏幕时的跟踪。

> 2020-04-10 11:39:44.812 2584-2646/com.trackplayer E/ReactNativeJS:
> Error: crypto.getRandomValues() not supported. See
> https://github.com/uuidjs/uuid#getrandomvalues-not-supported
>     
>     This error is located at:
>         in n
>         in RCTView
>         in y
>         in Unknown
>         in Unknown
>         in Unknown
>         in Unknown
>         in RCTView
>         in S
>         in RCTView
>         in RCTView
>         in E
>         in RCTView
>         in c
>         in RCTView
>         in Unknown
>         in v
>         in Unknown
>         in w
>         in Unknown
>         in Unknown
>         in Unknown
>         in Unknown
>         in RCTView
>         in RCTView
>         in RCTView
>         in RCTView
>         in k
>         in ForwardRef
>         in PanGestureHandler
>         in RCTView
>         in k
>         in ForwardRef
>         in RCTView
>         in D
>         in Unknown
>         in RCTView
>         in C
>         in RCTView
>         in H
>         in S
>         in h
>         in RNCSafeAreaView
>         in Unknown
>         in Unknown
>         in GestureHandlerRootView
>         in Unknown
>         in b
>         in Unknown
>         in O
>         in Unknown
>         in ForwardRef
>         in Unknown
>         in ForwardRef
>         in S
>         in RCTView
>         in RCTView
>         in E 2020-04-10 11:39:44.818 2584-2646/com.trackplayer E/ReactNativeJS: Error: crypto.getRandomValues() not supported. See
> https://github.com/uuidjs/uuid#getrandomvalues-not-supported
>     
>     This error is located at:
>         in n
>         in RCTView
>         in y
>         in Unknown
>         in Unknown
>         in Unknown
>         in Unknown
>         in RCTView
>         in S
>         in RCTView
>         in RCTView
>         in E
>         in RCTView
>         in c
>         in RCTView
>         in Unknown
>         in v
>         in Unknown
>         in w
>         in Unknown
>         in Unknown
>         in Unknown
>         in Unknown
>         in RCTView
>         in RCTView
>         in RCTView
>         in RCTView
>         in k
>         in ForwardRef
>         in PanGestureHandler
>         in RCTView
>         in k
>         in ForwardRef
>         in RCTView
>         in D
>         in Unknown
>         in RCTView
>         in C
>         in RCTView
>         in H
>         in S
>         in h
>         in RNCSafeAreaView
>         in Unknown
>         in Unknown
>         in GestureHandlerRootView
>         in Unknown
>         in b
>         in Unknown
>         in O
>         in Unknown
>         in ForwardRef
>         in Unknown
>         in ForwardRef
>         in S
>         in RCTView
>         in RCTView
>         in E 2020-04-10 11:39:44.822 2584-2647/com.trackplayer E/unknown:ReactNative: Error: crypto.getRandomValues() not supported.
> See https://github.com/uuidjs/uuid#getrandomvalues-not-supported
>     
>     This error is located at:
>         in n
>         in RCTView
>         in y
>         in Unknown
>         in Unknown
>         in Unknown
>         in Unknown
>         in RCTView
>         in S
>         in RCTView
>         in RCTView
>         in E
>         in RCTView
>         in c
>         in RCTView
>         in Unknown
>         in v
>         in Unknown
>         in w
>         in Unknown
>         in Unknown
>         in Unknown
>         in Unknown
>         in RCTView
>         in RCTView
>         in RCTView
>         in RCTView
>         in k
>         in ForwardRef
>         in PanGestureHandler
>         in RCTView
>         in k
>         in ForwardRef
>         in RCTView
>         in D
>         in Unknown
>         in RCTView
>         in C
>         in RCTView
>         in H
>         in S
>         in h
>         in RNCSafeAreaView
>         in Unknown
>         in Unknown
>         in GestureHandlerRootView
>         in Unknown
>         in b
>         in Unknown
>         in O
>         in Unknown
>         in ForwardRef
>         in Unknown
>         in ForwardRef
>         in S
>         in RCTView
>         in RCTView
>         in E, stack:
>     default@717:132
>     f@722:329
>     n@714:2621
>     Bn@92:31529
>     ui@92:49357
>     ja@92:72034
>     Oa@92:71959
>     Ia@92:69253
>     Ia@-1
>     <unknown>@92:25480
>     unstable_runWithPriority@183:3503
>     dn@92:25427
>     fn@92:25362
>     Pe@92:90879
>     Re@92:13478
>     Ie@92:13664
>     receiveTouches@92:14448
>     value@27:3544
>     <unknown>@27:840
>     value@27:2798
>     value@27:812
>     value@-1 2020-04-10 11:39:44.831 2584-2647/com.trackplayer E/AndroidRuntime: FATAL EXCEPTION: mqt_native_modules
>     Process: com.trackplayer, PID: 2584
>     com.facebook.react.common.JavascriptException: Error: crypto.getRandomValues() not supported. See
> https://github.com/uuidjs/uuid#getrandomvalues-not-supported
>     
>     This error is located at:
>         in n
>         in RCTView
>         in y
>         in Unknown
>         in Unknown
>         in Unknown
>         in Unknown
>         in RCTView
>         in S
>         in RCTView
>         in RCTView
>         in E
>         in RCTView
>         in c
>         in RCTView
>         in Unknown
>         in v
>         in Unknown
>         in w
>         in Unknown
>         in Unknown
>         in Unknown
>         in Unknown
>         in RCTView
>         in RCTView
>         in RCTView
>         in RCTView
>         in k
>         in ForwardRef
>         in PanGestureHandler
>         in RCTView
>         in k
>         in ForwardRef
>         in RCTView
>         in D
>         in Unknown
>         in RCTView
>         in C
>         in RCTView
>         in H
>         in S
>         in h
>         in RNCSafeAreaView
>         in Unknown
>         in Unknown
>         in GestureHandlerRootView
>         in Unknown
>         in b
>         in Unknown
>         in O
>         in Unknown
>         in ForwardRef
>         in Unknown
>         in ForwardRef
>         in S
>         in RCTView
>         in RCTView
>         in E, stack:
>     default@717:132
>     f@722:329
>     n@714:2621
>     Bn@92:31529
>     ui@92:49357
>     ja@92:72034
>     Oa@92:71959
>     Ia@92:69253
>     Ia@-1
>     <unknown>@92:25480
>     unstable_runWithPriority@183:3503
>     dn@92:25427
>     fn@92:25362
>     Pe@92:90879
>     Re@92:13478
>     Ie@92:13664
>     receiveTouches@92:14448
>     value@27:3544
>     <unknown>@27:840
>     value@27:2798
>     value@27:812
>     value@-1
>     
>         at com.facebook.react.modules.core.ExceptionsManagerModule.reportException(ExceptionsManagerModule.java:79)
>         at java.lang.reflect.Method.invoke(Native Method)
>         at com.facebook.react.bridge.JavaMethodWrapper.invoke(JavaMethodWrapper.java:372)
>         at com.facebook.react.bridge.JavaModuleWrapper.invoke(JavaModuleWrapper.java:151)
>         at com.facebook.react.bridge.queue.NativeRunnable.run(Native Method)
>         at android.os.Handler.handleCallback(Handler.java:883)
>         at android.os.Handler.dispatchMessage(Handler.java:100)
>         at com.facebook.react.bridge.queue.MessageQueueThreadHandler.dispatchMessage(MessageQueueThreadHandler.java:27)
>         at android.os.Looper.loop(Looper.java:214)
>         at com.facebook.react.bridge.queue.MessageQueueThreadImpl$4.run(MessageQueueThreadImpl.java:226)
>         at java.lang.Thread.run(Thread.java:919) 2020-04-10 11:39:44.850 2584-2647/com.trackplayer I/Process: Sending signal. PID:
> 2584 SIG: 9

Answer 1

似乎是新版本的错误，但根据此文档（https://github.com/react-native-community/react-native-webview/issues/1312）可以按如下方式解决

首先安装 react-native-get-random-values，然后在文件顶部导入

import 'react-native-get-random-values';
import React, { Component } from 'react';
import { WebView } from 'react-native-webview';
import {
  StyleSheet,
  View,
  Text,
} from 'react-native';

export default class MyWeb extends Component {
  render() {
    return (
      <View style={{ backgroundColor: 'blue',flex: 1 }}>
        <WebView
          source={{ uri: 'https://url.ngrok.io' }}
          style={{ marginTop: 20, }}
        />
      </View>
    );
  }
}

Answer 2

安装“react-native-get-random-values”包。

然后在您的本机应用程序的入口文件中添加“import 'react-native-get-random-values'”，如下所示。像使用 React Native CLI 创建的应用程序时的 index.js

import 'react-native-get-random-values';
import React, {Component} from 'react';
import { WebView } from 'react-native-webview';

class MyWebComponent extends Component {
    render() {
        return <WebView source={{ uri: 'https://reactnative.dev/' }} />;
    }
}