解决webview 添加android.uid.system后报错问题

使用hook 反射调用

class FaqActivity : BaseActivity() {

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setStatusNavBarColor(Color.TRANSPARENT, Color.WHITE)
        with(window) {
            decorView.systemUiVisibility = View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN or View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR or View.SYSTEM_UI_FLAG_LIGHT_NAVIGATION_BAR
            clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS)
            addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS)
        }
        hookWebView()
        setContentView(R.layout.activity_faq)
        initView()
    }

    private fun initView() {
        faqWeb.loadUrl("https://www.baidu.com/")
        faqWeb.webViewClient = object : WebViewClient() {
            override fun shouldOverrideUrlLoading(view: WebView?, request: WebResourceRequest?): Boolean {
                return false
            }
        }
    }

    fun hookWebView() {
        val sdkInt = Build.VERSION.SDK_INT
        try {
            val factoryClass = Class.forName("android.webkit.WebViewFactory")
            val field = factoryClass.getDeclaredField("sProviderInstance")
            field.isAccessible = true
            var sProviderInstance = field.get(null)
            if (sProviderInstance != null) {
                Log.i("ww", "sProviderInstance isn't null")
                return
            }

            val getProviderClassMethod: Method
            getProviderClassMethod = when {
                sdkInt > 22 -> factoryClass.getDeclaredMethod("getProviderClass")
                sdkInt == 22 -> factoryClass.getDeclaredMethod("getFactoryClass")
                else -> {
                    Log.i("ww", "Don't need to Hook WebView")
                    return
                }
            }
            getProviderClassMethod.isAccessible = true
            val factoryProviderClass = getProviderClassMethod.invoke(factoryClass) as Class<*>
            val delegateClass = Class.forName("android.webkit.WebViewDelegate")
            val delegateConstructor = delegateClass.getDeclaredConstructor()
            delegateConstructor.isAccessible = true
            if (sdkInt < 26) {//低于Android O版本
                val providerConstructor = factoryProviderClass.getConstructor(delegateClass)
                if (providerConstructor != null) {
                    providerConstructor.isAccessible = true
                    sProviderInstance = providerConstructor.newInstance(delegateConstructor.newInstance())
                }
            } else {
                val chromiumMethodName = factoryClass.getDeclaredField("CHROMIUM_WEBVIEW_FACTORY_METHOD")
                chromiumMethodName.isAccessible = true
                var chromiumMethodNameStr: String? = chromiumMethodName.get(null) as String
                if (chromiumMethodNameStr == null) {
                    chromiumMethodNameStr = "create"
                }
                val staticFactory = factoryProviderClass.getMethod(chromiumMethodNameStr, delegateClass)
                if (staticFactory != null) {
                    sProviderInstance = staticFactory.invoke(null, delegateConstructor.newInstance())
                }
            }

            if (sProviderInstance != null) {
                field.set("sProviderInstance", sProviderInstance)
                Log.i("ww", "Hook success!")
            } else {
                Log.i("ww", "Hook failed!")
            }
        } catch (e: Throwable) {
            Log.w("ww", e)
        }

    }
}