AlldigitalbayD
New Member
Im parsing an xml file and i keep getting a nullpointer exception. I don't know here the null pointer is 
ListView.java\[code\]static String URL = "https://dl.dropbox.com/u/####/wosm-library-EN.xml"; static final String KEY_ITEM = "item"; static final String KEY_ID = "id";static final String KEY_TITLE = "title";static final String KEY_DESCRIPTION = "description";static final String KEY_FILESIZE = "filesize";static final String KEY_THUMB_URL = "thumb_url";static final String KEY_DOCUMENT_URL = "document_url";SharedPreferences sharedPrefs = PreferenceManager.getDefaultSharedPreferences(this);ListView list;LazyAdapter adapter;@Overridepublic void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.library); sharedPrefs.getBoolean("french", false); { URL="https://dl.dropbox.com/u/######/wosm-library-EN.xml"; } sharedPrefs.getBoolean("french", true); { URL="https://dl.dropbox.com/u/######/wosm-library-FR.xml"; } ArrayList<HashMap<String, String>> libraryList = new ArrayList<HashMap<String, String>>(); XMLParser parser = new XMLParser(); String xml = parser.getXmlFromUrl(URL); Document doc = parser.getDomElement(xml); NodeList nl = doc.getElementsByTagName(KEY_ITEM); for (int i = 0; i < nl.getLength(); i++) { HashMap<String, String> map = new HashMap<String, String>(); Element e = (Element) nl.item(i); map.put(KEY_ID, parser.getValue(e, KEY_ID)); map.put(KEY_TITLE, parser.getValue(e, KEY_TITLE)); map.put(KEY_DESCRIPTION, parser.getValue(e, KEY_DESCRIPTION)); map.put(KEY_FILESIZE, parser.getValue(e, KEY_FILESIZE)); map.put(KEY_THUMB_URL, parser.getValue(e, KEY_THUMB_URL)); map.put(KEY_DOCUMENT_URL, parser.getValue(e, KEY_DOCUMENT_URL)); libraryList.add(map); } list=(ListView)findViewById(R.id.list); adapter=new LazyAdapter(this, libraryList); list.setAdapter(adapter); list.setOnItemClickListener(new OnItemClickListener() { public void onItemClick(AdapterView<?> parent, View view, int position, long id) { String title = ((TextView) view.findViewById(R.id.title)).getText().toString(); String description = ((TextView) view.findViewById(R.id.artist)).getText().toString(); //String thumb_url = ((ImageView)view.findViewById(R.id.list_image)).getImageMatrix().toString(); //String thumb_url = ((TextView) view.findViewById(R.id.thumburl)).getText().toString(); String filesize = ((TextView) view.findViewById(R.id.duration)).getText().toString(); String thumburl = ((TextView) view.findViewById(R.id.imgurl)).getText().toString(); String doc_url = ((TextView) view.findViewById(R.id.documenturl)).getText().toString(); Intent in = new Intent(CustomizedListView.this, org.scouts.library.SingleMenuItem.class); in.putExtra(KEY_TITLE, title); in.putExtra(KEY_DESCRIPTION, description); //in.putExtra(KEY_THUMB_URL, thumb_url); in.putExtra(KEY_FILESIZE, filesize); in.putExtra(KEY_THUMB_URL, thumburl); in.putExtra(KEY_DOCUMENT_URL, doc_url); startActivity(in); } }); } }\[/code\]i only started getting the nullpointer excepetion after i added the preference variable
ListView.java\[code\]static String URL = "https://dl.dropbox.com/u/####/wosm-library-EN.xml"; static final String KEY_ITEM = "item"; static final String KEY_ID = "id";static final String KEY_TITLE = "title";static final String KEY_DESCRIPTION = "description";static final String KEY_FILESIZE = "filesize";static final String KEY_THUMB_URL = "thumb_url";static final String KEY_DOCUMENT_URL = "document_url";SharedPreferences sharedPrefs = PreferenceManager.getDefaultSharedPreferences(this);ListView list;LazyAdapter adapter;@Overridepublic void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.library); sharedPrefs.getBoolean("french", false); { URL="https://dl.dropbox.com/u/######/wosm-library-EN.xml"; } sharedPrefs.getBoolean("french", true); { URL="https://dl.dropbox.com/u/######/wosm-library-FR.xml"; } ArrayList<HashMap<String, String>> libraryList = new ArrayList<HashMap<String, String>>(); XMLParser parser = new XMLParser(); String xml = parser.getXmlFromUrl(URL); Document doc = parser.getDomElement(xml); NodeList nl = doc.getElementsByTagName(KEY_ITEM); for (int i = 0; i < nl.getLength(); i++) { HashMap<String, String> map = new HashMap<String, String>(); Element e = (Element) nl.item(i); map.put(KEY_ID, parser.getValue(e, KEY_ID)); map.put(KEY_TITLE, parser.getValue(e, KEY_TITLE)); map.put(KEY_DESCRIPTION, parser.getValue(e, KEY_DESCRIPTION)); map.put(KEY_FILESIZE, parser.getValue(e, KEY_FILESIZE)); map.put(KEY_THUMB_URL, parser.getValue(e, KEY_THUMB_URL)); map.put(KEY_DOCUMENT_URL, parser.getValue(e, KEY_DOCUMENT_URL)); libraryList.add(map); } list=(ListView)findViewById(R.id.list); adapter=new LazyAdapter(this, libraryList); list.setAdapter(adapter); list.setOnItemClickListener(new OnItemClickListener() { public void onItemClick(AdapterView<?> parent, View view, int position, long id) { String title = ((TextView) view.findViewById(R.id.title)).getText().toString(); String description = ((TextView) view.findViewById(R.id.artist)).getText().toString(); //String thumb_url = ((ImageView)view.findViewById(R.id.list_image)).getImageMatrix().toString(); //String thumb_url = ((TextView) view.findViewById(R.id.thumburl)).getText().toString(); String filesize = ((TextView) view.findViewById(R.id.duration)).getText().toString(); String thumburl = ((TextView) view.findViewById(R.id.imgurl)).getText().toString(); String doc_url = ((TextView) view.findViewById(R.id.documenturl)).getText().toString(); Intent in = new Intent(CustomizedListView.this, org.scouts.library.SingleMenuItem.class); in.putExtra(KEY_TITLE, title); in.putExtra(KEY_DESCRIPTION, description); //in.putExtra(KEY_THUMB_URL, thumb_url); in.putExtra(KEY_FILESIZE, filesize); in.putExtra(KEY_THUMB_URL, thumburl); in.putExtra(KEY_DOCUMENT_URL, doc_url); startActivity(in); } }); } }\[/code\]i only started getting the nullpointer excepetion after i added the preference variable