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javascript - 安卓 WebView : crash after url loading

转载 作者：塔克拉玛干 更新时间：2023-11-03 00:27:28 26 4
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当用我的 webView 加载一个 url 时，应用程序在几秒钟后崩溃(没有错误日志...)。

我的代码:

 wv = new WebView(this);
        wv.clearCache(true);
        wv.clearHistory();
        wv.getSettings().setJavaScriptEnabled(true);
        wv.getSettings().setJavaScriptCanOpenWindowsAutomatically(true);

        wv.setDownloadListener(new DownloadListener() {
            @Override
            public void onDownloadStart(String url, String userAgent,
                                        String contentDisposition, String mimetype, long contentLength) {
                Intent intent = new Intent(Intent.ACTION_VIEW);
                intent.setType(mimetype);
                intent.setData(Uri.parse(url));
                startActivity(intent);
            }
        });


        wv.setWebViewClient(new WebViewClient() {
            @Override
            public boolean shouldOverrideUrlLoading(WebView view, String url) {

                // TODO change for other domains
                URL nextUrl;
                try {
                    nextUrl = new URL(url.toString());
                }catch (MalformedURLException e){
                    nextUrl = null;
                }

                if(nextUrl !=null && nextUrl.getHost().toString().equals(DOMAIN)) {
                    Toast.makeText(mContext, nextUrl.getHost().toString(), Toast.LENGTH_SHORT).show();
                    view.loadUrl(url);
                    return false;

                }else{
                    Intent browserIntent = new Intent(Intent.ACTION_VIEW, Uri.parse(url));
                    startActivity(browserIntent);
                    return true;
                }

            }
        });

        wv.setWebChromeClient(new WebChromeClient() {
            public void onProgressChanged(WebView view, int progress) {
                MainActivity.this.setProgress(progress * 1000);
            }
            public boolean onConsoleMessage(ConsoleMessage cm) {
                Log.d("MyProject: WebView: ", cm.message() + " -- From line "
                    + cm.lineNumber() + " of "
                    + cm.sourceId() );
            return true;
        }
        });

        wv.loadUrl(URL);
        setContentView(wv);

日志:

01-20 18:00:50.798    7233-7288/ my.appli.com I/dalvikvm﹕ "WebViewCoreThread" prio=5 tid=12 NATIVE
01-20 18:00:50.798    7233-7288/ my.appli.com I/dalvikvm﹕ | group="main" sCount=0 dsCount=0 obj=0x419a0be0 self=0x68f6c750
01-20 18:00:50.798    7233-7288/ my.appli.com I/dalvikvm﹕ | sysTid=7288 nice=10 sched=0/0 cgrp=apps/bg_non_interactive handle=1773204176
01-20 18:00:50.799    7233-7288/ my.appli.com I/dalvikvm﹕ | state=R schedstat=( 0 0 0 ) utm=2326 stm=119 core=0
01-20 18:00:50.841    7233-7288/ my.appli.com I/dalvikvm﹕ #00  pc 000012a0  /system/lib/libcorkscrew.so (unwind_backtrace_thread+27)
01-20 18:00:50.841    7233-7288/ my.appli.com I/dalvikvm﹕ #01  pc 0006235c  /system/lib/libdvm.so (dvmDumpNativeStack(DebugOutputTarget const*, int)+35)
01-20 18:00:50.841    7233-7288/ my.appli.com I/dalvikvm﹕ #02  pc 000561bc  /system/lib/libdvm.so (dvmDumpThreadEx(DebugOutputTarget const*, Thread*, bool)+303)
01-20 18:00:50.841    7233-7288/ my.appli.com I/dalvikvm﹕ #03  pc 00056256  /system/lib/libdvm.so (dvmDumpThread(Thread*, bool)+25)
01-20 18:00:50.841    7233-7288/ my.appli.com I/dalvikvm﹕ #04  pc 000478c8  /system/lib/libdvm.so (dvmDebuggerSignalHandler(int, siginfo*, void*)+15)
01-20 18:00:50.841    7233-7288/ my.appli.com I/dalvikvm﹕ at android.webkit.JWebCoreJavaBridge.sharedTimerFired(Native Method)
01-20 18:00:50.841    7233-7288/ my.appli.com I/dalvikvm﹕ at android.webkit.JWebCoreJavaBridge.fireSharedTimer(JWebCoreJavaBridge.java:92)
01-20 18:00:50.841    7233-7288/ my.appli.com I/dalvikvm﹕ at android.webkit.JWebCoreJavaBridge.handleMessage(JWebCoreJavaBridge.java:108)
01-20 18:00:50.841    7233-7288/ my.appli.com I/dalvikvm﹕ at android.os.Handler.dispatchMessage(Handler.java:99)
01-20 18:00:50.841    7233-7288/ my.appli.com I/dalvikvm﹕ at android.os.Looper.loop(Looper.java:137)
01-20 18:00:50.841    7233-7288/ my.appli.com I/dalvikvm﹕ at android.webkit.WebViewCore$WebCoreThread.run(WebViewCore.java:900)
01-20 18:00:50.841    7233-7288/ my.appli.com I/dalvikvm﹕ at java.lang.Thread.run(Thread.java:856)
01-20 18:00:50.841    7233-7288/ my.appli.com I/dalvikvm﹕ [ 01-20 18:00:50.841  7233: 7288 F/libc     ]
    Fatal signal 11 (SIGSEGV) at 0x0000001c (code=1), thread 7288 (WebViewCoreThre)

尝试使用我的 Android 设备 (4.1) 的默认浏览器加载相同的 URL 时，我遇到了同样的问题(崩溃)。

我要加载的 URL 是:

http://presentbox.jp

感谢您的帮助。

--- 编辑 1

我用最近的 Android 手机 (4.4) 试过，应用程序没有崩溃。

出于调试目的，我删除了我网站的所有重要部分(图像、js 等)，但应用程序在向下滚动后仍然崩溃。

最佳答案

//编辑:找到了! general.css 中第 2540 行的罪魁祸首:

#head-search-form{display: block;margin: 30px 0;}

更具体地说，是 display: block 以某种方式使 WebView 阻塞。我不是网络开发人员，但是用 flex 或 none 交换值似乎不再导致崩溃(而且我无法分辨视觉差异在移动设备上)。希望对您有所帮助!

我已经建立了一个小型测试项目，并且能够在(虚拟)Android 4.1 设备上重现崩溃。它似乎只在页面完全加载后滚动时发生。 IE。您可以毫无问题地展开菜单抽屉，只要您不开始滚动...

我能够将罪魁祸首缩小到 general.css .只要您不加载该样式表，页面就会正常工作和滚动，但当然看起来不会很漂亮。

由于 general.css 有 3300 多行，我建议您通过修复 the errors indicated by the W3C CSS Validator 来开始搜索真正的原因。 .如果这不能解决问题，请开始禁用与照片网格相关的样式规则，尤其是涉及动画/转换的任何内容。如果我有时间，我也可以自己尝试一下。

仅供引用，这里有一个更广泛的堆栈跟踪。其他人也可以在那里找到更多的指示。

mh.test.webview A/libc: Fatal signal 11 (SIGSEGV) at 0x00001f08 (code=1), thread 11949 (WebViewCoreThre)
I/DEBUG: *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
I/DEBUG: Build fingerprint: 'generic/vbox86p/vbox86p:4.1.1/JRO03S/eng.buildbot.20151117.133415:userdebug/test-keys'
I/DEBUG: pid: 11930, tid: 11949, name: WebViewCoreThre  >>> mh.test.webview <<<
I/DEBUG: signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 00001f08
I/DEBUG:     eax b84902e4  ebx 9ba8b488  ecx b804b028  edx b83c0224
I/DEBUG:     esi b8490360  edi b804b028
I/DEBUG:     xcs 00000073  xds 0000007b  xes 0000007b  xfs 00000000  xss 0000007b
I/DEBUG:     eip 00001f08  ebp 997b9748  esp 997b96dc  flags 00010296
I/DEBUG:     #00  pc 00001f08  <unknown>
I/DEBUG:     #01  pc 00344fd6  /system/lib/libwebcore.so (WebCore::RenderLayerCompositor::computeCompositingRequirements(WebCore::RenderLayer*, WTF::HashMap<WebCore::RenderLayer*, WebCore::IntRect, WTF::PtrHash<WebCore::RenderLayer*>, WTF::HashTraits<WebCore::RenderLayer*>, WTF::HashTraits<WebCore::IntRect> >*, WebCore::CompositingState&, bool&)+38)
I/DEBUG:     #02  pc 003454bb  /system/lib/libwebcore.so (WebCore::RenderLayerCompositor::computeCompositingRequirements(WebCore::RenderLayer*, WTF::HashMap<WebCore::RenderLayer*, WebCore::IntRect, WTF::PtrHash<WebCore::RenderLayer*>, WTF::HashTraits<WebCore::RenderLayer*>, WTF::HashTraits<WebCore::IntRect> >*, WebCore::CompositingState&, bool&)+1291)
I/DEBUG:     #03  pc 003454bb  /system/lib/libwebcore.so (WebCore::RenderLayerCompositor::computeCompositingRequirements(WebCore::RenderLayer*, WTF::HashMap<WebCore::RenderLayer*, WebCore::IntRect, WTF::PtrHash<WebCore::RenderLayer*>, WTF::HashTraits<WebCore::RenderLayer*>, WTF::HashTraits<WebCore::IntRect> >*, WebCore::CompositingState&, bool&)+1291)
I/DEBUG:     #04  pc 003454bb  /system/lib/libwebcore.so (WebCore::RenderLayerCompositor::computeCompositingRequirements(WebCore::RenderLayer*, WTF::HashMap<WebCore::RenderLayer*, WebCore::IntRect, WTF::PtrHash<WebCore::RenderLayer*>, WTF::HashTraits<WebCore::RenderLayer*>, WTF::HashTraits<WebCore::IntRect> >*, WebCore::CompositingState&, bool&)+1291)
I/DEBUG:     #05  pc 003454bb  /system/lib/libwebcore.so (WebCore::RenderLayerCompositor::computeCompositingRequirements(WebCore::RenderLayer*, WTF::HashMap<WebCore::RenderLayer*, WebCore::IntRect, WTF::PtrHash<WebCore::RenderLayer*>, WTF::HashTraits<WebCore::RenderLayer*>, WTF::HashTraits<WebCore::IntRect> >*, WebCore::CompositingState&, bool&)+1291)
I/DEBUG:     #06  pc 00346c55  /system/lib/libwebcore.so (WebCore::RenderLayerCompositor::updateCompositingLayers(WebCore::CompositingUpdateType, WebCore::RenderLayer*)+213)
I/DEBUG:     #07  pc 0020e727  /system/lib/libwebcore.so (WebCore::FrameView::layout(bool)+1159)
I/DEBUG:     #08  pc 0068126f  /system/lib/libwebcore.so (WebCore::Document::updateLayout()+127)
I/DEBUG:     #09  pc 0068bbda  /system/lib/libwebcore.so (WebCore::Document::updateLayoutIgnorePendingStylesheets()+90)
I/DEBUG:     #10  pc 005ead53  /system/lib/libwebcore.so (WebCore::CSSComputedStyleDeclaration::getPropertyCSSValue(int, WebCore::EUpdateLayout) const+467)
I/DEBUG:     #11  pc 005f35e9  /system/lib/libwebcore.so (WebCore::CSSComputedStyleDeclaration::getPropertyCSSValue(int) const+41)
I/DEBUG:     #12  pc 005e68d7  /system/lib/libwebcore.so (WebCore::CSSComputedStyleDeclaration::getPropertyValue(int) const+55)
I/DEBUG:     #13  pc 006297f8  /system/lib/libwebcore.so (WebCore::CSSStyleDeclaration::getPropertyValue(WTF::String const&)+88)
I/DEBUG:     #14  pc 004d9475  /system/lib/libwebcore.so (WebCore::CSSStyleDeclarationInternal::getPropertyValueCallback(v8::Arguments const&)+181)
I/DEBUG:     #15  pc 000efdd4  <unknown>
I/DEBUG:     #16  pc 0005cf6b  <unknown>
I/DEBUG:     #17  pc 000bb32f  <unknown>
I/DEBUG:     #18  pc 00003b41  <unknown>
I/DEBUG:     #19  pc 000f47ce  <unknown>
I/DEBUG:     #20  pc 0001a5a3  <unknown>
I/DEBUG:     #21  pc 000065e3  <unknown>
I/DEBUG:     #22  pc 00003b41  <unknown>
I/DEBUG:     #23  pc 00024c59  <unknown>
I/DEBUG:     #24  pc 00024dad  <unknown>
I/DEBUG:     #25  pc 00003b41  <unknown>
I/DEBUG:     #26  pc 0001a59c  <unknown>
I/DEBUG:     #27  pc 000d7172  <unknown>
I/DEBUG:     #28  pc 0001a5a3  <unknown>
I/DEBUG:     #29  pc 000d40ed  <unknown>
I/DEBUG:     #30  pc 00017bf9  <unknown>
I/DEBUG:     #31  pc 00008c2a  <unknown>
I/DEBUG:          997b969c  00000000  
I/DEBUG:          997b96a0  00000000  
I/DEBUG:          997b96a4  00000000  
I/DEBUG:          997b96a8  00000000  
I/DEBUG:          997b96ac  00000000  
I/DEBUG:          997b96b0  00000000  
I/DEBUG:          997b96b4  00000000  
I/DEBUG:          997b96b8  00000000  
I/DEBUG:          997b96bc  00000000  
I/DEBUG:          997b96c0  00000000  
I/DEBUG:          997b96c4  00000000  
I/DEBUG:          997b96c8  00000000  
I/DEBUG:          997b96cc  00000000  
I/DEBUG:          997b96d0  00000000  
I/DEBUG:          997b96d4  00000000  
I/DEBUG:          997b96d8  00000000  
I/DEBUG:     #00  997b96dc  9ad1cdd4  /system/lib/libwebcore.so (WebCore::RenderLayer::updateLayerPosition()+52)
I/DEBUG:          997b96e0  b84902e4  [heap]
I/DEBUG:          997b96e4  b8490090  [heap]
I/DEBUG:          997b96e8  0000000f  
I/DEBUG:          997b96ec  0000002f  
I/DEBUG:          997b96f0  b8490090  [heap]
I/DEBUG:          997b96f4  00000001  
I/DEBUG:          997b96f8  9ad2204e  /system/lib/libwebcore.so (WebCore::RenderLayer::repaintIncludingNonCompositingDescendants(WebCore::RenderBoxModelObject*)+14)
I/DEBUG:          997b96fc  b827f428  [heap]
I/DEBUG:          997b9700  9ba8b488  /system/lib/libwebcore.so
I/DEBUG:          997b9704  b8490090  [heap]
I/DEBUG:          997b9708  997b9748  [stack:11949]
I/DEBUG:          997b970c  9ad35d38  /system/lib/libwebcore.so (WebCore::RenderLayerCompositor::updateBacking(WebCore::RenderLayer*, WebCore::RenderLayerCompositor::CompositingChangeRepaint)+344)
I/DEBUG:          997b9710  b8490014  [heap]
I/DEBUG:          997b9714  b848fe3c  [heap]
I/DEBUG:          997b9718  00000012  
I/DEBUG:          ........  ........
I/DEBUG:     #01  997b9750  b8490360  [heap]
I/DEBUG:          997b9754  b8490090  [heap]
I/DEBUG:          997b9758  00000000  
I/DEBUG:          997b975c  997b98e0  [stack:11949]
I/DEBUG:          997b9760  997ba84f  [stack:11949]
I/DEBUG:          997b9764  b843a9e4  [heap]
I/DEBUG:          997b9768  00000034  
I/DEBUG:          997b976c  00000180  
I/DEBUG:          997b9770  b848fe3c  [heap]
I/DEBUG:          997b9774  b85257f8  [heap]
I/DEBUG:          997b9778  9ace0300  /system/lib/libwebcore.so (WebCore::RenderBox::dirtyLineBoxes(bool)+80)
I/DEBUG:          997b977c  43400000  
I/DEBUG:          997b9780  b83fe51c  [heap]
I/DEBUG:          997b9784  997b9788  [stack:11949]
I/DEBUG:          997b9788  004a0000  
I/DEBUG:          997b978c  b848feb8  [heap]
I/DEBUG:          ........  ........
I/DEBUG:     #02  997b9aa0  b804b028  [heap]
I/DEBUG:          997b9aa4  b8490360  [heap]
I/DEBUG:          997b9aa8  00000000  
I/DEBUG:          997b9aac  997b9c30  [stack:11949]
I/DEBUG:          997b9ab0  997ba84f  [stack:11949]
I/DEBUG:          997b9ab4  b83fe51c  [heap]
I/DEBUG:          997b9ab8  00000000  
I/DEBUG:          997b9abc  00000001  
I/DEBUG:          997b9ac0  b86fd038  [heap]
I/DEBUG:          997b9ac4  b86fd368  [heap]
I/DEBUG:          997b9ac8  997b9b48  [stack:11949]
I/DEBUG:          997b9acc  9adac54a  /system/lib/libwebcore.so (WebCore::TransformState::move(int, int, WebCore::TransformState::TransformAccumulation)+58)
I/DEBUG:          997b9ad0  b83fe678  [heap]
I/DEBUG:          997b9ad4  b8294d4c  [heap]
I/DEBUG:          997b9ad8  00580b05  
I/DEBUG:          997b9adc  b83fe770  [heap]
I/DEBUG:          ........  ........
I/DEBUG:     (no map below)
I/DEBUG:     (no map for address)
I/DEBUG:     20c1e000-20c1f000

关于javascript - 安卓 WebView : crash after url loading，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/34895838/

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