Android O报错： Error inflating class android.webkit.WebView / For security reasons, WebView is not allowed in privileged processes

设备环境：Android O ，   android:sharedUserId="android.uid.system"  进程

错误： android.view.InflateException: Binary XML file line #24: Error inflating class android.webkit.WebView。。。。

               。。。For security reasons, WebView is not allowed in privileged processes

网上的解决办法：

1.  manifest的Application下面添加：

<meta-data android:name="android.webkit.WebView.EnableSafeBrowsing"
                   android:value="true"/>
验证结果：然并卵

2. 在app文件下的build.gradle里面的appcompat版本如果是1.1.0的话webview会出错误，改成1.0.2

验证结果：然并卵

3.  （效果同第4点）application属性增加： android:usesCleartextTraffic="true"   

验证结果：然并卵  (非 android:sharedUserId="android.uid.system"  进程 有效)

4. （效果同第3点）  application属性增加：android:networkSecurityConfig="@xml/network_security_config"      res/xml/下面放置的network_security_config.xml 内容：

<?xml version="1.0" encoding="utf-8"?> <network-security-config> <base-config cleartextTrafficPermitted="true" /> </network-security-config>

验证结果：然并卵  (非 android:sharedUserId="android.uid.system"  进程 有效)

5. 终极有效的解决方法： 在Application启动的时候先调用该方法 (同时要加上第3点或者第4点)

public static void hookWebView(){

    int sdkInt = Build.VERSION.SDK_INT;

    try {

      Class<?> factoryClass = Class.forName("android.webkit.WebViewFactory");

      Field field = factoryClass.getDeclaredField("sProviderInstance");

      field.setAccessible(true);

      Object sProviderInstance = field.get(null);

      if (sProviderInstance != null) {

        Log.i(TAG,"sProviderInstance isn't null");

        return;

      }

 

      Method getProviderClassMethod;

      if (sdkInt > 22) {

        getProviderClassMethod = factoryClass.getDeclaredMethod("getProviderClass");

      } else if (sdkInt == 22) {

        getProviderClassMethod = factoryClass.getDeclaredMethod("getFactoryClass");

      } else {

        Log.i(TAG,"Don't need to Hook WebView");

        return;

      }

      getProviderClassMethod.setAccessible(true);

      Class<?> factoryProviderClass = (Class<?>) getProviderClassMethod.invoke(factoryClass);

      Class<?> delegateClass = Class.forName("android.webkit.WebViewDelegate");

      Constructor<?> delegateConstructor = delegateClass.getDeclaredConstructor();

      delegateConstructor.setAccessible(true);

      if(sdkInt < 26){//低于Android O版本

        Constructor<?> providerConstructor = factoryProviderClass.getConstructor(delegateClass);

        if (providerConstructor != null) {

          providerConstructor.setAccessible(true);

          sProviderInstance = providerConstructor.newInstance(delegateConstructor.newInstance());

        }

      } else {

        Field chromiumMethodName = factoryClass.getDeclaredField("CHROMIUM_WEBVIEW_FACTORY_METHOD");

        chromiumMethodName.setAccessible(true);

        String chromiumMethodNameStr = (String)chromiumMethodName.get(null);

        if (chromiumMethodNameStr == null) {

          chromiumMethodNameStr = "create";

        }

        Method staticFactory = factoryProviderClass.getMethod(chromiumMethodNameStr, delegateClass);

        if (staticFactory!=null){

          sProviderInstance = staticFactory.invoke(null, delegateConstructor.newInstance());

        }

      }

 

      if (sProviderInstance != null){

        field.set("sProviderInstance", sProviderInstance);

        Log.i(TAG,"Hook success!");

      } else {

        Log.i(TAG,"Hook failed!");

      }

    } catch (Throwable e) {

      Log.w(TAG,e);

    }

  }