API 21 及更高版本中的 Android webview 加载失败

本文介绍了API 21 及更高版本中的 Android webview 加载失败的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我有一个使用 WebView 并加载页面的 Android 应用程序.此应用适用于运行 API 16 或更高版本的 Android 设备.

I have an Android application that uses WebView and load a page. This application works on Android devices running API 16 or above.

Android WebView 代码:

Android WebView Code:

String URL = "sandbox.napas.vn/gateway/message"; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_web_view); webview = (WebView) findViewById(R.id.webview); webview.getSettings().setJavaScriptEnabled(true); webview.getSettings().setAllowFileAccess(true); webview.getSettings().setPluginState(PluginState.ON); webview.getSettings().setDomStorageEnabled(true); webview.getSettings().setAllowContentAccess(true); webview.getSettings().setAllowFileAccessFromFileURLs(true); webview.getSettings().setJavaScriptCanOpenWindowsAutomatically(true); webview.setWebChromeClient(new MyWebChromeClient()); webview.loadUrl(URL); webview.setWebViewClient(new WebViewClient() { @Override public boolean shouldOverrideUrlLoading(WebView view, String url) { view.loadUrl(url); return true; } @Override public void onPageStarted(WebView view, String url, Bitmap favicon) { super.onPageStarted(view, url, favicon); } @Override public void onPageFinished(WebView view, String url) { super.onPageFinished(view, url); } }); }

但 webview 加载页面为空并且有日志:

But webview load page empty and have logs:

E/libEGL(25467): validate_display:255 error 3008 (EGL_BAD_DISPLAY) W/AudioCapabilities(25467): Unsupported mime audio/evrc W/AudioCapabilities(25467): Unsupported mime audio/qcelp W/VideoCapabilities(25467): Unrecognized profile 2130706433 for video/avc W/AudioCapabilities(25467): Unsupported mime audio/amr-wb-plus W/AudioCapabilities(25467): Unsupported mime audio/mpeg-L1 W/AudioCapabilities(25467): Unsupported mime audio/mpeg-L2 D/ConnectivityManager(25467): CallingUid : 10063, CallingPid : 25467 D/ConnectivityManager.CallbackHandler(25467): CM callback handler got msg 524290 W/AudioCapabilities(25467): Unsupported mime audio/x-ms-wma W/AudioCapabilities(25467): Unsupported mime audio/x-ima W/AudioCapabilities(25467): Unsupported mime audio/qcelp W/AudioCapabilities(25467): Unsupported mime audio/evrc W/VideoCapabilities(25467): Unsupported mime video/wvc1 W/VideoCapabilities(25467): Unsupported mime video/x-ms-wmv W/VideoCapabilities(25467): Unrecognized profile/level 32768/2 for video/mp4v-es W/VideoCapabilities(25467): Unsupported mime video/wvc1 W/VideoCapabilities(25467): Unsupported mime video/x-ms-wmv W/VideoCapabilities(25467): Unsupported mime video/x-ms-wmv7 W/VideoCapabilities(25467): Unsupported mime video/x-ms-wmv8 W/VideoCapabilities(25467): Unsupported mime video/mp43 W/VideoCapabilities(25467): Unsupported mime video/sorenson W/VideoCapabilities(25467): Unsupported mime video/mp4v-esdp

请帮我修正这个错误.谢谢

Please help me fix this error. Thanks

推荐答案

我通过处理 ssl Error 找到了类似问题的解决方案.基本上重写了 Webviewclient 对象中的函数 onReceivedSslError 并设置 handler.proceed()，消除了问题.

I found out the solution to similar problem by handling ssl Error .Basically overriding the function onReceivedSslError in the object of Webviewclient and setting the handler.proceed(), removed the issue .

WebViewClient webClient = new WebViewClient() { // Override page so it's load on my view only @Override public boolean shouldOverrideUrlLoading(WebView view, String url) { return false; } @Override public void onPageStarted(WebView view, String url, Bitmap facIcon) { mLayoutProgress.setVisibility(View.VISIBLE); } @Override public void onReceivedSslError(WebView view, SslErrorHandler handler, SslError error) { handler.proceed(); } @Override public void onPageFinished(WebView view, String url) { mLayoutProgress.setVisibility(View.GONE); } };