安卓开发，捕捉webview网络异常后重载webview

private static Boolean isReloadDone = false;

@RequiresApi(api = Build.VERSION_CODES.M)
@Override
public void onReceivedError(WebView view, WebResourceRequest request, WebResourceError error) {
    super.onReceivedError(view, request, error);
    if (isReloadDone == false) {
        new Thread(new Runnable() {
            @Override
            public void run() {
                try {
                    isReloadDone = true;
                    Thread.sleep(180000);
                    Log.d(TAG, "onReceivedError: re");
                    webView.reload();
                    isReloadDone = false;
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
        }).start();
    }
}

@RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
@Override
public void onReceivedHttpError(WebView view, W