"http“和"?”在android webview邮件链接中被截断

Question

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    this.getWindow().requestFeature(Window.FEATURE_PROGRESS);
    setContentView(R.layout.main);

    // Don't create another webview reference here,
    // just use the one you declared at class level.
    webview = (WebView) findViewById(R.id.webview);
    webview.getSettings().setJavaScriptEnabled(true);
    webview.loadUrl("http://www.example.com");

    webview.setWebChromeClient(new WebChromeClient() {
        public void onProgressChanged(WebView view, int progress)
        {
            activity.setTitle("Loading...");
            activity.setProgress(progress * 100);

            if(progress == 100)
                activity.setTitle(R.string.app_name);
        }
    });

    webview.setWebViewClient(new WebViewClient() {
        @Override
        public void onReceivedError(WebView view, int errorCode, String     description, String failingUrl)
        {
        // Handle the error
        }

        @Override
        public boolean shouldOverrideUrlLoading(WebView view, String url)
        {
          if(url.startsWith("mailto:")){
              MailTo mt = MailTo.parse(url);
              Intent i = newEmailIntent(HelloWorld.this, mt.getBody(), mt.getSubject());
              startActivity(i);
              view.reload();
              return true;
        }

        view.loadUrl(url);
        return true;
    }

   });
}
public static Intent newEmailIntent(Context context, String body, String subject ) {
    Intent intent = new Intent(Intent.ACTION_SEND);
    intent.putExtra(Intent.EXTRA_EMAIL, new String[] {});
    intent.putExtra(Intent.EXTRA_TEXT, body);
    intent.putExtra(Intent.EXTRA_SUBJECT, subject);
    intent.setType("rfc2368/html");
    return intent;
   }
} 

正在尝试将邮件添加到webview应用程序。当您运行应用程序并单击mailto链接时，它会打开messenger。出于某种原因，"http“和"?”被截断并且不能被邮件识别。同样的mailto链接在设备的普通浏览器中也能完美工作。我唯一需要获取的字段是subject和body。

Answer 1

好办法:确保mailto链接主题/正文字段中的任何内容都是URL转义的(没有文字斜杠、&符号等)当他们得到MailTo解析代码的时候。特别地，"?“是Mailto RFC中头的保留字符。

也就是说，不

mailto://...subject=http://foo.com?x=y

而不是试着

mailto://...subject=http%3A%2F%2Ffoo.com%3Fx%3Dy