Android webview crash "Fatal signal 5 (SIGTRAP)"

Question

I have an app with a web view in which I load HTML content with JavaScript enabled. The web view is inside a fragment.

This is how I initialize the web view inside the method onCreateView of the fragment :

WebView webview = (WebView) mainView.findViewById(R.id.webview);  WebSettings webSettings = webview.getSettings();  webSettings.setJavaScriptEnabled(true); webSettings.setDisplayZoomControls(false); webSettings.setLoadsImagesAutomatically(true); webSettings.setBuiltInZoomControls(true); webSettings.setDomStorageEnabled(true); webSettings.setSupportMultipleWindows(true);  webview.setWebViewClient(new WebViewClient() {     @Override     public void onPageFinished(WebView view, String url) {         super.onPageFinished(view, url);         /*         * My code         */     } });  webview.setWebChromeClient(new WebChromeClient() {     @Override     public boolean onCreateWindow(WebView view, boolean isDialog, boolean isUserGesture, Message resultMsg) {         WebView.HitTestResult result = view.getHitTestResult();         String data = result.getExtra();         if (data != null) {             Intent browserIntent = new Intent(Intent.ACTION_VIEW, Uri.parse(data));             startActivity(browserIntent);         }         return false;     } });  webview.loadDataWithBaseURL(baseUrl, htmlData, "text/html", "utf-8", ""); 

In the web view, a map is loaded with JavaScript. On this map, we can click on elements and load photos. When clicked, the photo is displayed in a popup (still inside the web view). When I click on the back button to go back to the map, the app crashes.

Here is the error log :

A/libc: Fatal signal 5 (SIGTRAP), code 1 in tid 949 (Chrome_InProcRe) [ 03-21 11:26:08.510 364: 364 W/ ] debuggerd: handling request: pid=32610 uid=10289 gid=10289 tid=949

I tested and got the crash on Android 7.1.1, 6.0.1, 5.0.2. Then I tried with Android 4.4.2 and the app didn't crash.

When I click on the back button (as we can see on the GIF), it should go back to the previous state with the popup closed

Answer 1

Try to override the back navigation functionality and close the popup yourself.

You don't need to handle all the stack navigation logic, just have a state when you are showing this popup. Apply your own navigation logic(like manually closing the popup).

void onBackPressed(){     if(isTheBuggyPopupIsOn){         closeTheBuggyPopup();     }     else{         super.onBackPressed();     } }