Frage zu Json, ArrayList, HashMap

1ArrayList<String> id;
2 ArrayList<String> interpret;
3 ArrayList<String> titel;
4 ArrayList<String> album;
5 ArrayList<String> albumcover;
6 ArrayList<String> uploader;
7 ArrayList<String> likes;

1id = new ArrayList<String>();
2 interpret = new ArrayList<String>();
3 titel = new ArrayList<String>();
4 album = new ArrayList<String>();
5...

1JSONArray jArray = new JSONArray(result);
2 for(int i=0;i<jArray.length();i++) {
3 json_data = jArray.getJSONObject(i);
4
5 id.add(json_data.getString("id"));
6 interpret.add(json_data.getString("interpret"));
7 titel.add(json_data.getString("titel"));
8 album.add(json_data.getString("album"));
9 albumcover.add(json_data.getString("albumcover"));
10 //youtube.add(json_data.getString("youtube"));
11 uploader.add(json_data.getString("uploader"));
12 likes.add(json_data.getString("likes"));

1public class CustomizedListView extends Activity {
2 // All static variables
3 static final String URL = "http://api.androidhive.info/music/music.xml";
4 // XML node keys
5 static final String KEY_SONG = "song"; // parent node
6 static final String KEY_ID = "id";
7 static final String KEY_TITLE = "title";
8 static final String KEY_ARTIST = "artist";
9 static final String KEY_DURATION = "duration";
10 static final String KEY_THUMB_URL = "thumb_url";
11
12 ListView list;
13 LazyAdapter adapter;
14
15 @Override
16 public void onCreate(Bundle savedInstanceState) {
17 super.onCreate(savedInstanceState);
18 setContentView(R.layout.main);
19
20 ArrayList&lt;HashMap&lt;String, String&gt;&gt; songsList = new ArrayList&lt;HashMap&lt;String, String&gt;&gt;();
21
22 XMLParser parser = new XMLParser();
23 String xml = parser.getXmlFromUrl(URL); // getting XML from URL
24 Document doc = parser.getDomElement(xml); // getting DOM element
25
26 NodeList nl = doc.getElementsByTagName(KEY_SONG);
27 // looping through all song nodes &lt;song&gt;
28 for (int i = 0; i &lt; nl.getLength(); i++) {
29 // creating new HashMap
30 HashMap&lt;String, String&gt; map = new HashMap&lt;String, String&gt;();
31 Element e = (Element) nl.item(i);
32 // adding each child node to HashMap key =&gt; value
33 map.put(KEY_ID, parser.getValue(e, KEY_ID));
34 map.put(KEY_TITLE, parser.getValue(e, KEY_TITLE));
35 map.put(KEY_ARTIST, parser.getValue(e, KEY_ARTIST));
36 map.put(KEY_DURATION, parser.getValue(e, KEY_DURATION));
37 map.put(KEY_THUMB_URL, parser.getValue(e, KEY_THUMB_URL));
38
39 // adding HashList to ArrayList
40 songsList.add(map);
41 }

1static String id, interpret, titel, album, albumcover, uploader, likes;

1ArrayList<HashMap<String, String>> songslist = new ArrayList<HashMap<String, String>>();
2
3 HashMap<String, String> map = new HashMap<String, String>();
4 JSONArray jArray = new JSONArray(result);
5
6 for(int i=0;i<jArray.length();i++) {
7 JSONObject json_data = jArray.getJSONObject(i);
8
9 map.put(id, json_data.getString("id"));
10 map.put(interpret, json_data.getString("interpret"));
11 map.put(titel, json_data.getString("titel"));
12 map.put(album, json_data.getString("album"));
13 map.put(albumcover, json_data.getString("albumcover"));
14 //map.put("youtube", json_data.getString("youtube"));
15 map.put(uploader, json_data.getString("uploader"));
16 map.put(likes, json_data.getString("likes"));
17
18 songslist.add(map);

1/*ArrayList<String> id = new ArrayList<String>();
2 ArrayList<String> interpret = new ArrayList<String>();
3 ArrayList<String> titel = new ArrayList<String>();
4 ArrayList<String> album = new ArrayList<String>();
5 ArrayList<String> albumcover = new ArrayList<String>();
6 ArrayList<String> youtube = new ArrayList<String>();
7 ArrayList<String> uploader = new ArrayList<String>();
8 ArrayList<String> likes = new ArrayList<String>();*/

1public void onCreate(Bundle savedInstanceState) {
2 super.onCreate(savedInstanceState);
3 setContentView(R.layout.charts);
4
5 String result = "";
6 ArrayList<NameValuePair> nameValuePair = new ArrayList<NameValuePair>();
7
8 try{
9 HttpClient httpClient = new DefaultHttpClient();
10 HttpPost httpPost = new HttpPost("http://www.url.de/datei.php");
11 httpPost.setEntity(new UrlEncodedFormEntity(nameValuePair));
12 HttpResponse response = httpClient.execute(httpPost);
13 HttpEntity entity = response.getEntity();
14 is = entity.getContent();
15 }
16 catch(Exception e){
17 Log.e("log-tag","Fehler"+e.toString());
18 }
19
20 try{
21 BufferedReader reader = new BufferedReader(new InputStreamReader(is,"iso-8859-1"),8);
22 StringBuilder sb = new StringBuilder();
23 String line = "";
24
25 while((line= reader.readLine())!=null)
26 {
27 sb.append(line+"n");
28 }
29 is.close();
30 result = sb.toString();
31 result.trim();
32 }catch(Exception e)
33 {
34 Log.e("log-tag","Error"+e.toString());
35 }

1for(int i=0;i<jArray.length();i++) {
2 JSONObject json_data = jArray.getJSONObject(i);
3 HashMap<String, String> map = new HashMap<String, String>();
4
5 map.put(id, json_data.getString("id"));
6 map.put(interpret, json_data.getString("interpret"));
7 map.put(titel, json_data.getString("titel"));
8 map.put(album, json_data.getString("album"));
9 map.put(albumcover, json_data.getString("albumcover"));
10 //map.put("youtube", json_data.getString("youtube"));
11 map.put(uploader, json_data.getString("uploader"));
12 map.put(likes, json_data.getString("likes"));
13
14 songslist.add(map);
15
16 }

1String content = EntityUtils.toString(entity, HTTP.UTF_8);

1BufferedReader reader = new BufferedReader(new InputStreamReader(is,"iso-8859-1"),8);
2 StringBuilder sb = new StringBuilder();
3 String line = "";
4
5 while((line= reader.readLine())!=null)
6 {
7 sb.append(line+"n");
8 }
9 is.close();
10 result = sb.toString();
11 result.trim();

1HttpEntity entity = response.getEntity();
2 content = EntityUtils.toString(entity, HTTP.UTF_8);

1list = getListView();
2 adapter = new LazyAdapter(this, songslist);
3 list.setAdapter(adapter);

1HttpClient httpClient = new DefaultHttpClient();
2 HttpPost httpPost = new HttpPost("http://www.deejay-nd.de/android_charts_read.php");
3 httpPost.setEntity(new UrlEncodedFormEntity(nameValuePair));
4 HttpResponse response = httpClient.execute(httpPost);
5 HttpEntity entity = response.getEntity();
6 is = entity.getContent();
7 content = EntityUtils.toString(entity, HTTP.UTF_8);
8
9 bla = (TextView)findViewById(R.id.textView1);
10 bla.setText(content);

1is = entity.getContent();

1ArrayList<HashMap<String, String>> songslist = new ArrayList<HashMap<String, String>>();
2 JSONArray jArray = new JSONArray(content);
3
4 for(int i=0;i<jArray.length();i++) {
5 JSONObject json_data = jArray.getJSONObject(i);
6 HashMap<String, String> map = new HashMap<String, String>();
7
8 map.put(id, json_data.getString("id"));
9 map.put(interpret, json_data.getString("interpret"));
10 map.put(titel, json_data.getString("titel"));
11 map.put(album, json_data.getString("album"));
12 map.put(albumcover, json_data.getString("albumcover"));
13 //map.put("youtube", json_data.getString("youtube"));
14 map.put(uploader, json_data.getString("uploader"));
15 map.put(likes, json_data.getString("likes"));
16
17 songslist.add(map);
18
19 }
20
21 list = getListView();
22 adapter = new LazyAdapter(this, songslist);
23 list.setAdapter(adapter);

1DefaultHttpClient httpClient = new DefaultHttpClient();
2 HttpPost httpPost = new HttpPost(url);
3 httpPost.setEntity(new UrlEncodedFormEntity(params));
4
5 HttpResponse httpResponse = httpClient.execute(httpPost);
6 HttpEntity httpEntity = httpResponse.getEntity();
7 content = EntityUtils.toString(httpEntity, HTTP.UTF_8);

1{"success":0,"message":"Entschuldigung. Ein Fehler ist aufgetreten."}

1<?php
2 $response = array();
3
4 if (isset($_POST['interpret']) && isset($_POST['titel']) && isset($_POST['album']) && isset($_POST['albumcover'])) {
5
6 $interpret = $_POST['interpret'];;
7 $titel = $_POST['titel'];
8 $album = $_POST['album'];
9 $albumcover = $_POST['albumcover'];
10
11
12 //$db = new DB_CONNECT();
13 define ('DB_USER', "a");
14 define ('DB_PASSWORD', "b");
15 define ('DB_DATABASE', "c");
16 define ('DB_SERVER', "d");
17 mysql_connect(DB_SERVER, DB_USER, DB_PASSWORD) or die(mysql_error());
18 $db = mysql_select_db(DB_DATABASE) or die(mysql_error()) or die(mysql_error());
19
20 $result = mysql_query("INSERT INTO Charts (interpret, titel, album, albumcover) VALUES ($interpret, $titel, $album, $albumcover)");
21 if ($result) {
22 // successfully inserted into database
23 $response["success"] = 1;
24 $response["message"] = "Charteintrag erfolgreich!";
25
26 echo json_encode($response);
27 } else {
28 // failed to insert row
29 $response["success"] = 0;
30 $response["message"] = "Entschuldigung. Ein Fehler ist aufgetreten.";
31 echo json_encode($response);
32 }
33 } else {
34 // required field is missing
35 $response["success"] = 0;
36 $response["message"] = "Es wurden nich alle Felder ausgefüllt!";
37 echo json_encode($response);
38 }
39?>

1$result = mysql_query("INSERT INTO Charts (interpret, titel, album, albumcover) VALUES ('$interpret', '$titel', '$album', '$albumcover')");

1public class ShowCharts extends ListActivity{
2
3 @Override
4 public void onCreate(Bundle savedInstanceState) {
5 super.onCreate(savedInstanceState);
6 setContentView(R.layout.charts);
7
8 try{
9 songslist = new ArrayList<HashMap<String, String>>();
10
11 new LoadCharts().execute();
12 list.setOnItemClickListener(new OnItemClickListener() {
13
14 @Override
15 public void onItemClick(AdapterView<?> parent, View v,
16 int position, long id) {
17 // getting values from selected ListItem
18 String id_item = ((TextView)findViewById(R.id._id)).getText().toString();
19
20 // Starting new intent
21 Intent in = new Intent(getApplicationContext(),
22 EditSong.class);
23 // sending pid to next activity
24 in.putExtra(TAG_ID, id_item);
25
26 // starting new activity and expecting some response back
27 startActivityForResult(in, 100);
28 }
29 });
30
31
32 }catch(Exception e)
33 {
34 Log.e("log-tag","Error2"+e.toString());
35 }
36
37}
38 @Override
39 protected void onActivityResult(int requestCode, int resultCode, Intent data) {
40 super.onActivityResult(requestCode, resultCode, data);
41 // if result code 100
42 if (resultCode == 100) {
43 // if result code 100 is received
44 // means user edited/deleted product
45 // reload this screen again
46 Intent intent = getIntent();
47 finish();
48 startActivity(intent);
49 }
50
51 }
52
53 public class LoadCharts extends AsyncTask<String, String, String> {
54 [...]
55 /**
56 * After completing background task Dismiss the progress dialog
57 * **/
58 public void onPostExecute(String file_url) {
59 // dismiss the dialog after getting all products
60 pDialog.dismiss();
61 // updating UI from Background Thread
62
63 runOnUiThread(new Runnable() {
64 public void run() {
65 /**
66 * Updating parsed JSON data into ListView
67 * */
68 list = getListView();
69 adapter = new LazyAdapter(this, songslist);
70 list.setAdapter(adapter);
71 }
72 });
73
74 }
75
76 }
77
78}