安卓监听WebView加载失败以及获取WebView异常的errorCode和errorMessage

拼搏现实的明天。 2024-03-17 12:10 5阅读 0赞

### 在使用WebView中，我们不可避免的会接触到WebView加载失败的异常处理的需求，这时候，需要我们监听失败的方法也就是onReceivedError方法：    ###

public class CustomWebViewClient extends WebViewClient {
    
            @Override
            public void onReceivedError(WebView view, WebResourceRequest request, WebResourceError error) {
                super.onReceivedError(view, request, error);
                if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
                    int errorCode = error.getErrorCode();
                    String errorMessage = error.getDescription().toString();
                    Log.i("CustomWebViewClient", "onReceivedError  errorCode : " + errorCode + " errorMessage : " + errorMessage);
                }
            }
    
            @Override
            public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
                super.onReceivedError(view, errorCode, description, failingUrl);
                if (android.os.Build.VERSION.SDK_INT < Build.VERSION_CODES.M) {
                    Log.i("CustomWebViewClient", "onReceivedError  errorCode : " + errorCode + " description : " + description);
                }
            }
        }

> 注意： WebViewClient 的 onReceivedError（）方法要根据安卓版本做版本兼容，android 6.0及以上回调上面的方法，如果是6.0以下，回调下面的函数。

### 下面是errorCode的列举： ###

/** Generic error */
        public static final int ERROR_UNKNOWN = -1;
        /** Server or proxy hostname lookup failed */
        public static final int ERROR_HOST_LOOKUP = -2;
        /** Unsupported authentication scheme (not basic or digest) */
        public static final int ERROR_UNSUPPORTED_AUTH_SCHEME = -3;
        /** User authentication failed on server */
        public static final int ERROR_AUTHENTICATION = -4;
        /** User authentication failed on proxy */
        public static final int ERROR_PROXY_AUTHENTICATION = -5;
        /** Failed to connect to the server */
        public static final int ERROR_CONNECT = -6;
        /** Failed to read or write to the server */
        public static final int ERROR_IO = -7;
        /** Connection timed out */
        public static final int ERROR_TIMEOUT = -8;
        /** Too many redirects */
        public static final int ERROR_REDIRECT_LOOP = -9;
        /** Unsupported URI scheme */
        public static final int ERROR_UNSUPPORTED_SCHEME = -10;
        /** Failed to perform SSL handshake */
        public static final int ERROR_FAILED_SSL_HANDSHAKE = -11;
        /** Malformed URL */
        public static final int ERROR_BAD_URL = -12;
        /** Generic file error */
        public static final int ERROR_FILE = -13;
        /** File not found */
        public static final int ERROR_FILE_NOT_FOUND = -14;
        /** Too many requests during this load */
        public static final int ERROR_TOO_MANY_REQUESTS = -15;