Question

I want to read a XML document from a URL:

public void DownloadXmlFile() throws IOException{
        //TODO
        String url = "http://api.m1858.com/coursebook.xml";
        URL u = new URL(url);
        HttpURLConnection conn = (HttpURLConnection) u.openConnection();
        conn.setReadTimeout(10000);
        conn.setConnectTimeout(15000);
        conn.setRequestMethod("GET");
        conn.setDoInput(true);
        conn.connect();
    }

I get an Error Exception

android.os.NetworkOnMainThreadException

I added uses-permission in manifest file:

<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />

Answer 1

This is not an XML Problem its a Strict Mode Problem.
You should’nt do time intensiv things in Gui Thread, do it in a own Thread.

• Blogpost with introduction
• Developers API infos
• BestPracties

However, you can disable it, but you shouldt 😉
see here