JSON Parse ile Farklı URL leri Çağırmak
Merhaba;
Bir yayın akışı sayfası hazırlıyorum. Bunun için her güne bir button atadım. Yapmak istedigim her button da farklı bir güne ait url yi çağırmak. bunu nasıl gerçekleştirebilirim.
Yayın Akışı Sınıfı:
[code]package com.denemeservis;
import java.util.ArrayList;
import java.util.HashMap;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.ProgressDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.os.AsyncTask;
import android.os.Bundle;
import android.view.KeyEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.AdapterView;
import android.widget.Button;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.TextView;
public class YayinAkisi extends Activity {
private ListView list;
private TextView ver;
private TextView name;
private TextView api;
private Button btnYayinakisidiger;
private Button btnYayinakisimesaj;
private Button btnYayinakisikamera;
private Button pzt;
private Button sal;
private Button crs;
private Button prs;
private Button cum;
private Button cmt;
private Button pzr;
ArrayList<HashMap<String, String>> oslist = new ArrayList<HashMap<String, String>>();
// url yi çagıralım
private static String url[] = { "http://api.learn2crack.com/android/jsonos/" };
// json tag isimleri
private static final String TAG_OS = "android";
private static final String TAG_VER = "ver";
private static final String TAG_NAME = "name";
private static final String TAG_API = "api";
JSONArray android = null;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.yayin_akisi);
oslist = new ArrayList<HashMap<String, String>>();
btnYayinakisidiger = (Button) findViewById(R.id.button1);
btnYayinakisidiger.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Intent radyo = new Intent(getApplicationContext(),
DigerRadyo.class);
startActivity(radyo);
}
});
btnYayinakisimesaj = (Button) findViewById(R.id.button2);
btnYayinakisimesaj.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Intent mesaj = new Intent(getApplicationContext(),
MesajGonder.class);
startActivity(mesaj);
}
});
btnYayinakisikamera = (Button) findViewById(R.id.button3);
btnYayinakisikamera.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Intent kamera = new Intent(getApplicationContext(),
Kamera.class);
startActivity(kamera);
}
});
pzt = (Button) findViewById(R.id.button4);
pzt.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
new JSONParse().execute(url[0]);
}
});
sal = (Button) findViewById(R.id.button5);
sal.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
new JSONParse().execute(url[0]);
}
});
crs = (Button) findViewById(R.id.button6);
crs.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
new JSONParse().execute(url[0]);
}
});
prs = (Button) findViewById(R.id.button7);
prs.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
new JSONParse().execute(url[0]);
}
});
cum = (Button) findViewById(R.id.button8);
cum.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
new JSONParse().execute(url[0]);
}
});
cmt = (Button) findViewById(R.id.button9);
cmt.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
new JSONParse().execute(url[0]);
}
});
pzr = (Button) findViewById(R.id.button10);
pzr.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
new JSONParse().execute(url[0]);
}
});
}
private class JSONParse extends AsyncTask<String, String, JSONObject> {
private ProgressDialog pDialog;
@Override
protected void onPreExecute() {
super.onPreExecute();
ver = (TextView) findViewById(R.id.vers);
name = (TextView) findViewById(R.id.name);
api = (TextView) findViewById(R.id.api);
pDialog = new ProgressDialog(YayinAkisi.this);
pDialog.setMessage("Yayın Akışı Alınıyor ...");
pDialog.setIndeterminate(false);
pDialog.setCancelable(true);
pDialog.show();
}
@Override
protected JSONObject doInBackground(String... args) {
JSONParser jParser = new JSONParser();
// Getting JSON from URL
JSONObject json = jParser.getJSONFromUrl(url[0]);
return json;
}
@Override
protected void onPostExecute(JSONObject json) {
pDialog.dismiss();
try {
android = json.getJSONArray(TAG_OS);
oslist.clear();
for (int i = 0; i < android.length(); i++) {
JSONObject c = android.getJSONObject(i);
// Storing JSON item in a Variable
String ver = c.getString(TAG_VER);
String name = c.getString(TAG_NAME);
String api = c.getString(TAG_API);
// Adding value HashMap key => value
HashMap<String, String> map = new HashMap<String, String>();
map.put(TAG_VER, ver);
map.put(TAG_NAME, name);
map.put(TAG_API, api);
oslist.add(map);
}
list = (ListView) findViewById(R.id.listViewYayin);
ListAdapter adapter = new SimpleAdapter(YayinAkisi.this,
oslist,
R.layout.list_v,
new String[] { TAG_VER, TAG_NAME, TAG_API }, new int[] {
R.id.vers, R.id.name, R.id.api });
list.setAdapter(adapter);
list.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
}
});
} catch (JSONException e) {
e.printStackTrace();
}
}
}[/code]
JSON Parser Sınıfı :
[code]package com.denemeservis;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONException;
import org.json.JSONObject;
import android.util.Log;
public class JSONParser {
static InputStream is = null;
static JSONObject jObj = null;
static String json = "";
// constructor
public JSONParser() {
}
public JSONObject getJSONFromUrl(String url) {
// Making HTTP request
try {
// defaultHttpClient
DefaultHttpClient httpClient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(url);
HttpResponse httpResponse = httpClient.execute(httpPost);
HttpEntity httpEntity = httpResponse.getEntity();
is = httpEntity.getContent();
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
try {
BufferedReader reader = new BufferedReader(new InputStreamReader(
is, "iso-8859-1"), 8);
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
is.close();
json = sb.toString();
} catch (Exception e) {
Log.e("Buffer Error", "Error converting result " + e.toString());
}
// try parse the string to a JSON object
try {
jObj = new JSONObject(json);
} catch (JSONException e) {
Log.e("JSON Parser", "Error parsing data " + e.toString());
}
// return JSON String
return jObj;
}
}[/code]
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