webview选择本地文件关闭文件打开方式弹窗后无法获取弹窗关闭事件
mWebView.setBrowserAgent(newBrowserAgent(WebViewSlice.this){本地文件选择OverridepublicbooleanonPickFiles(WebViewwebView,AsyncCallback<Uri[]>urisCallback,PickFilesParamsparams){urisCallbackALLurisCallback;IntentintentnewIntent();OperationoptnewIntent.OperationBuilder().withAction("android.intent.action.GETCONTENT").build();intent.setOperation(opt);intent.addFlags(Intent.FLAGNOTOHOSCOMPONENT);int...