Android中的布局中不会加载特定的webview

时间:2017-02-03 08:50:52

标签: java android webview

我在应用程序中有几个webview,其中一个根本没有加载,但在更改为特定webview中的简单URL时,如“https://www.google.com/”,它正确加载。我正在尝试加载的网址是“https://mpi.mashie.eu/public/menu/v%C3%A4ster%C3%A5s+stad+skola/a4ec46b2?country=se”这是一个午餐菜单,位于应用程序内部的webview中,如代码和屏幕截图所示。

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_lunch);
    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);

    getSupportActionBar().setDisplayHomeAsUpEnabled(true);
    getSupportActionBar().setDisplayShowHomeEnabled(true);
    toolbar.setNavigationOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            finish();
        }
    });

    lunch_view = (WebView)findViewById(R.id.webLunch);
    lunch_view.getSettings().setJavaScriptEnabled(true);
    lunch_view.setWebViewClient(new WebViewClient());
    lunch_view.loadUrl("https://mpi.mashie.eu/public/menu/v%C3%A4ster%C3%A5s+stad+skola/a4ec46b2?country=se");
}

应用程序在HTC One M9上运行 Activity with webview running live application

带有Webview的Android Studio布局文件

Android Studio layout file with WebView visible

我在这里测试了类似问题的答案: Android webview not loading url

1 个答案:

答案 0 :(得分:1)

您正在尝试加载SSL安全网站(由https://表示),并且您没有在webview客户端中处理ssl-error事件。您需要在webviewclient中重载onReceivedSslError。要通过Google Play商店认证,您需要先创建对话框,然后再在您的网址中继续使用SSL证书错误,并让用户决定继续/取消ssl错误。

此示例代码来自StackOverflow中的另一篇帖子,该帖子已针对类似问题发布。

    private class MyWebViewClient extends WebViewClient {
        @Override
        public void onReceivedSslError(WebView view, final SslErrorHandler handler, SslError error) {
        AlertDialog.Builder builder = new AlertDialog.Builder(getSupportActionBar().getThemedContext());
        AlertDialog alertDialog = builder.create();
        String message = "SSL Certificate error. ";
        switch (error.getPrimaryError()) {
            case SslError.SSL_UNTRUSTED:
                message += "The certificate authority is not trusted.";
                break;
            case SslError.SSL_EXPIRED:
                message += "The certificate has expired.";
                break;
            case SslError.SSL_IDMISMATCH:
                message += "The certificate Hostname mismatch.";
                break;
            case SslError.SSL_NOTYETVALID:
                message += "The certificate is not yet valid.";
                break;
        }

        Log.d(TAG, message);

        message += " Do you want to continue anyway?";
        alertDialog.setTitle("SSL Certificate Error");
        alertDialog.setMessage(message);
        alertDialog.setButton(DialogInterface.BUTTON_POSITIVE, "OK", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                // Ignore SSL certificate errors
                handler.proceed();
            }
        });

        alertDialog.setButton(DialogInterface.BUTTON_NEGATIVE, "Cancel", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                handler.cancel();
            }
        });
        alertDialog.show();
    }
}