LeakCanary spots Android WebView memory leak -


i've been using tool leakcanary spot memory leakages in application. seems webviewactivity leaks everytime.

i created simple application test leakages. start activity webview inside xml layout file/inflate activity context. js off. default expect simple webviewclient keeping redirection within webview. leaks every time.

i've done plenty of research, way prevent start webviewactivity process , kill inside ondestroy. method has own disadvantages.

the leak happens every time on devices running 5.0+, haven't checked 4.3 , below.

the leak info pasted below:

in com.example.webviewmemoryleaktest:1.0:1. * com.example.webviewmemoryleaktest.webviewactivity has leaked: * gc root android.os.resultreceiver$myresultreceiver.this$0 * references org.chromium.content.browser.contentviewcore$2$1.this$1 (anonymous class extends android.os.resultreceiver) * references org.chromium.content.browser.contentviewcore$2.this$0 * references org.chromium.content.browser.contentviewcore.mcontext * references com.android.webview.chromium.resourcescontextwrapperfactory$webviewcontextwrapper.mbase * leaks com.example.webviewmemoryleaktest.webviewactivity instance

  • reference key: 9a0346cf-6ad9-4b07-9329-a975d8fa3cbe
  • device: lge google nexus 4 occam
  • android version: 5.1 api: 22
  • durations: watch=5139ms, gc=188ms, heap dump=2822ms, analysis=30918ms

appreciate if help. thanks!

private resultreceiver mresultreceiver = new resultreceiver(new handler()) {     @override     public void onreceiveresult(int resultcode, bundle resultdata) {         getcontentviewclient().onimestatechangerequested(                 resultcode == inputmethodmanager.result_shown                 || resultcode == inputmethodmanager.result_unchanged_shown);         if (resultcode == inputmethodmanager.result_shown) {             // if osk newly shown, delay form focus until             // onsizechanged (in order adjust relative             // new size).             // todo(jdduke): should not assume onsizechanged             // called, crbug.com/294908.             getcontainerview().getwindowvisibledisplayframe(                     mfocuspreoskviewportrect);         } else if (hasfocus() && resultcode                 == inputmethodmanager.result_unchanged_shown) {             // if osk there, focus form immediately.             assert mwebcontents != null;             mwebcontents.scrollfocusededitablenodeintoview();         }     } };  @override public resultreceiver getnewshowkeyboardreceiver() {     return mresultreceiver; }

make mresultreceiver private.


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