こんにちは、画像を含むオンライン xml を解析しました。onclick で画像の解析に行き詰まってしまいました。誰か答えを知っていれば、助けてもらえますか?
public class SingleMenuItem extends Activity {
// XML node keys
static final String KEY_SONG = "song";
static final String KEY_ARTIST = "artist";
static final String KEY_THUMB_URL = "thumb_url";
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.libraryonclick);
// getting intent data
Intent in = getIntent();
// Get XML values from previous intent
String song = in.getStringExtra(KEY_SONG);
String artist = in.getStringExtra(KEY_ARTIST);
final String thumb_url = in.getStringExtra(KEY_THUMB_URL);
// Displaying all values on the screen
TextView lblSong = (TextView) findViewById(R.id.textView1);
TextView lblArtist = (TextView) findViewById(R.id.textView2);
ImageView lblThumb_Url = (ImageView) findViewById(R.id.onclickthumb);
Button link3Btn = (Button)findViewById( R.id.button1 );
link3Btn.setOnClickListener( new View.OnClickListener()
{
public void onClick(View v)
{
Uri uri = Uri.parse(thumb_url);
startActivity( new Intent( Intent.ACTION_VIEW, uri ) );
}
});
lblSong.setText(song);
lblArtist.setText(artist);
lblThumb_Url.setSrc(thumb_url);
ありがとう、私はそれがコーディングを開始した上記の行と関係があることを知っていますが、動けなくなりました
Main Activity
public class CustomizedListView extends Activity {
// All static variables
static final String URL = "http://dl.dropbox.com/u/48258247/music.xml";
// XML node keys
static final String KEY_SONG = "song"; // parent node
static final String KEY_ID = "id";
static final String KEY_TITLE = "title";
static final String KEY_ARTIST = "artist";
static final String KEY_DURATION = "duration";
static final String KEY_THUMB_URL = "thumb_url";
ListView list;
LazyAdapter adapter;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.library);
ArrayList<HashMap<String, String>> songsList = new ArrayList<HashMap<String, String>>();
XMLParser parser = new XMLParser();
String xml = parser.getXmlFromUrl(URL); // getting XML from URL
Document doc = parser.getDomElement(xml); // getting DOM element
NodeList nl = doc.getElementsByTagName(KEY_SONG);
// looping through all song nodes <song>
for (int i = 0; i < nl.getLength(); i++) {
// creating new HashMap
HashMap<String, String> map = new HashMap<String, String>();
Element e = (Element) nl.item(i);
// adding each child node to HashMap key => value
map.put(KEY_ID, parser.getValue(e, KEY_ID));
map.put(KEY_TITLE, parser.getValue(e, KEY_TITLE));
map.put(KEY_ARTIST, parser.getValue(e, KEY_ARTIST));
map.put(KEY_DURATION, parser.getValue(e, KEY_DURATION));
map.put(KEY_THUMB_URL, parser.getValue(e, KEY_THUMB_URL));
// adding HashList to ArrayList
songsList.add(map);
}
list=(ListView)findViewById(R.id.list);
// Getting adapter by passing xml data ArrayList
adapter=new LazyAdapter(this, songsList);
list.setAdapter(adapter);
// Click event for single list row
list.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
// getting values from selected ListItem
String song = ((TextView) view.findViewById(R.id.title)).getText().toString();
String artist = ((TextView) view.findViewById(R.id.artist)).getText().toString();
String thumb_url = ((TextView) view.findViewById(R.id.duration)).getText().toString();
// Starting new intent
Intent in = new Intent(CustomizedListView.this, com.example.androidhive.SingleMenuItem.class);
in.putExtra(KEY_SONG, song);
in.putExtra(KEY_ARTIST, artist);
in.putExtra(KEY_THUMB_URL, thumb_url);
startActivity(in);
}
});
}