Question

Webview onReceivedError方法在webview setWebViewClient中大部分时间被调用。我该如何解决？

出于多种原因可能会调用

onReceivedError方法。我怎么知道它是否仅被称为网页不可用的问题？

        webView = (WebView) findViewById(R.id.webViewOpen);
        webView.loadUrl(url);
        webView.getSettings().setJavaScriptEnabled(true);
        webView.getSettings().setEnableSmoothTransition(true);
        webView.getSettings().setLoadsImagesAutomatically(true);
        webView.setWebViewClient(new WebViewClient() {
            @Override
            public boolean shouldOverrideUrlLoading(WebView view, WebResourceRequest request) {
                toolbar.setTitle(title);
                try {
                    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
                        view.loadUrl(request.getUrl().toString());
                    } else {
                        view.loadUrl(url);
                    }
                } catch (Exception e) {
                    Toast.makeText(WebViewOpen.this, "Opening Browser", Toast.LENGTH_SHORT).show();
                    return false;
                }
                return true;
            }

            /*@Override
            public boolean shouldOverrideUrlLoading(WebView view, String url) {
                toolbar.setTitle(title);
                try {
                    webView.loadUrl(url);
                } catch (Exception e) {
                    Toast.makeText(WebViewOpen.this, "Opening Browser", Toast.LENGTH_SHORT).show();
                    return false;
                }
                return true;
            }*/

            @Override
            public void onReceivedError(WebView view, WebResourceRequest request, WebResourceError error) {
                Toast.makeText(getApplicationContext(), "Error! Check your internet connection\nor refresh\n" + error.toString(),
                        Toast.LENGTH_SHORT).show();
                webView.loadUrl("file:///android_asset/dealsoftheday.html");
            }
        });

Answer 1

您需要检查错误，并根据需要进行处理。类似的东西：

switch (error.getErrorCode()) {
     case WebViewClient.ERROR_BAD_URL:
        ...
        break;
     case WebViewClient.ERROR_CONNECT:
        ...
        break;
     case ...:
        break;
     default:
        break;
}

您可以在此处查看完整的错误列表：WebViewClient errors

大多数时候都会调用Webview onReceivedError方法

1 个答案: