Question

一个极其简单的应用程序，API级别24（Android 7.0），尝试在实际物理设备上的唯一活动中加载WebView，并在日志中提供以下内容并停止该应用程序：

df1.merge(df2, left_on ='A', right_on='Red', how='outer').bfill(axis=1)\
   .drop(['A','Red'], axis=1).rename(columns={'B':'Red'})

   Red Blue  Green Yellow
0   1   10    car   four
1   1   11    Bus    six
2   2   10    car   four
3   2   11    Bus    six
4   3   10    car   four
5   3   11    Bus    six
6   y   12   bike    two
7   z   13  cycle    two

和

I/cr_DRP: No DRP key due to exception:java.lang.ClassNotFoundException: com.android.webview.chromium.Drp

和

W/System.err: java.lang.SecurityException: BIND_EXTERNAL_SERVICE failed, ComponentInfo{com.android.webview/org.chromium.content.app.SandboxedProcessService0} is not an externalService

这是怎么回事？某种版本/依赖性问题？如何纠正？

用于WebView的XML：

A/chromium: [FATAL:jni_android.cc(233)] Check failed: false. Please include Java exception stack in crash report
A/libc: Fatal signal 6 (SIGABRT), code -6 in tid 6989 (Chrome_ProcessL)

WebView代码：

<WebView
android:id="@+id/webview"
android:layout_width="match_parent"
android:layout_height="match_parent"/>

完整项目：https://github.com/qabi/webviewtest

Answer 1

我也遇到java.lang.SecurityException: BIND_EXTERNAL_SERVICE的类似问题，因为我的情况是manifest.xml中缺少互联网许可。

uses-permission android:name="android.permission.INTERNET"

Answer 2

尚未启用JavaScript似乎是一个可能的原因（默认情况下已禁用）：

mWebView = findViewById(R.id.webview);
myWebView.getSettings().setJavaScriptEnabled(true);
mWebView.loadUrl("https://google.com");

Answer 3

首先检查清单中是否正确提供了权限。

uses-permission android:name="android.permission.INTERNET"

如果默认情况下在加载网址时包含了此内容，则它会尝试重定向到chrome浏览器。我认为这是导致崩溃的原因。反正不确定。添加以下代码将其停止。

 mWebView.setWebViewClient(new WebViewClient() {
        public boolean shouldOverrideUrlLoading(WebView view, String url){                   
                    view.loadUrl(url);
                    return false; // then it is not handled by default action
           }
});

Answer 4

Webview对象将是wv

   wv.setWebChromeClient(
            new WebChromeClient() {

                long mStartRX = TrafficStats.getTotalRxBytes();
                long mStartTX = TrafficStats.getTotalTxBytes();


                @Override
                public void onConsoleMessage(String message, int lineNumber, String sourceID) {
                    Log.d("MyApplication", message + " -- From line "
                            + lineNumber + " of "
                            + sourceID);
                }

                @Override
                public void onProgressChanged(WebView view, int newProgress) {
                    super.onProgressChanged(view, newProgress);

                    long rxBytes = TrafficStats.getTotalRxBytes() - mStartRX;
                    long txBytes = TrafficStats.getTotalTxBytes() - mStartTX;

                    Log.d("TRAFFIC", "Current Bytes Rx ==>   " + rxBytes
                            + "   Bytes Tx ==>   " + txBytes
                            + " New progress ==> "  + newProgress);
                }
    });
   wv.setWebViewClient(new WebViewClient() {
        @Override
        public void onPageStarted(WebView view, String url, Bitmap favicon) {
            super.onPageStarted(view, url, favicon);
            pb.setVisibility(View.VISIBLE);

        }

        @Override
        public boolean shouldOverrideUrlLoading(WebView view, String url) {
            wv.loadUrl(url);
            return true;
        }



        @Override
        public void onPageFinished(WebView view, String url) {
            super.onPageFinished(view, url);


        }

        @Override
        public void onReceivedError(WebView view, WebResourceRequest request, WebResourceError error) {
            super.onReceivedError(view, request, error);


        }
    });

ClassNotFoundException和BIND_EXTERNAL_SERVICE并在Android WebView中崩溃

4 个答案: