小编Kev*_*nce的帖子

我有一个类似的字符串"75003 Paris, France"或"Syracuse, NY 13205, USA".

我想使用相同的代码从这些字符串中删除所有这些数字.

我怎样才能做到这一点？

我的应用程序中有几个控制器.当我的应用程序在一个控制器中调用一个函数时,我想更新其他控制器的UI.我怎样才能做到这一点？

class FirstViewController: UIViewController {
    func updateUI {...}  
}

class SecondViewController: UIViewController {
    func updateUI {...}  
}

class ThirdViewController: UIViewController{
    func updateAllUI {...} # I want call FirstViewController().updateUI() and SecondViewController().updateUI() here
}

但是FirstViewController()意味着我创建了一个我不想要的新FirstViewController,并且已经创建了FirstViewController.那么如何在updateAllUI()中调用所有其他控制器的updateUI()

请帮帮忙,谢谢!

我搜索了所有解决方案并应用到我的项目中.但他们没有工作.我已将此权限拒绝.我已将所有可能的权限放入清单文件中.请告诉我我的项目有什么问题.

public static void getGetResponse() {
        InputStream inputStream = null;
        try {
            URL url = new URL("http://120.26.89.113:8080/common/qiniuToken");
            HttpURLConnection connection = (HttpURLConnection)url.openConnection();
            connection.setRequestMethod("GET");          
            String userPassword = "wehelper:***********";
            byte[] encodedBytes = Base64.encode(userPassword.getBytes(), 0);
            connection.setRequestProperty("Authorization", "Basic " + encodedBytes);
            connection.connect();
            int resCode = connection.getResponseCode();
            if (resCode == 200) {
                inputStream = connection.getInputStream();
            }

            BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream));
            StringBuilder out = new StringBuilder();
            String line;
            while ((line = reader.readLine()) != null) {
                out.append(line);
            }
            System.out.println(out.toString());//Prints the string content read from input stream …