จากบทความ Android JSON Retrieving Data from URL Web Server ถ้าต้องการนำค่ามาเช็คเพื่อกำหนดการแสดงข้อมูลต้องแทรก Intent ไว้ตรงไหนครับ
จากบทความ https://www.thaicreate.com/mobile/android-json-from-url.html
Code (Android-Java)
package com.myapp;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.HashMap;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.StatusLine;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.os.Bundle;
import android.os.StrictMode;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.util.Log;
import android.view.View;
import android.view.Menu;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ListView;
import android.widget.SimpleAdapter;
public class MainActivity extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// Permission StrictMode
if (android.os.Build.VERSION.SDK_INT > 9) {
StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
StrictMode.setThreadPolicy(policy);
}
// listView1
final ListView lisView1 = (ListView)findViewById(R.id.listView1);
/** JSON return
* [{"MemberID":"1","Name":"Weerachai","Tel":"0819876107"},
* {"MemberID":"2","Name":"Win","Tel":"021978032"},
* {"MemberID":"3","Name":"Eak","Tel":"0876543210"}]
*/
String url = "https://www.thaicreate.com/android/getJSON.php";
try {
JSONArray data = new JSONArray(getJSONUrl(url));
final ArrayList<HashMap<String, String>> MyArrList = new ArrayList<HashMap<String, String>>();
HashMap<String, String> map;
for(int i = 0; i < data.length(); i++){
JSONObject c = data.getJSONObject(i);
map = new HashMap<String, String>();
map.put("MemberID", c.getString("MemberID"));
map.put("Name", c.getString("Name"));
map.put("Tel", c.getString("Tel"));
MyArrList.add(map);
}
SimpleAdapter sAdap;
sAdap = new SimpleAdapter(MainActivity.this, MyArrList, R.layout.activity_column,
new String[] {"MemberID", "Name", "Tel"}, new int[] {R.id.ColMemberID, R.id.ColName, R.id.ColTel});
lisView1.setAdapter(sAdap);
final AlertDialog.Builder viewDetail = new AlertDialog.Builder(this);
// OnClick Item
lisView1.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> myAdapter, View myView,
int position, long mylng) {
String sMemberID = MyArrList.get(position).get("MemberID")
.toString();
String sName = MyArrList.get(position).get("Name")
.toString();
String sTel = MyArrList.get(position).get("Tel")
.toString();
//String sMemberID = ((TextView) myView.findViewById(R.id.ColMemberID)).getText().toString();
// String sName = ((TextView) myView.findViewById(R.id.ColName)).getText().toString();
// String sTel = ((TextView) myView.findViewById(R.id.ColTel)).getText().toString();
viewDetail.setIcon(android.R.drawable.btn_star_big_on);
viewDetail.setTitle("Member Detail");
viewDetail.setMessage("MemberID : " + sMemberID + "\n"
+ "Name : " + sName + "\n" + "Tel : " + sTel);
viewDetail.setPositiveButton("OK",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,
int which) {
// TODO Auto-generated method stub
dialog.dismiss();
}
});
viewDetail.show();
}
});
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public String getJSONUrl(String url) {
StringBuilder str = new StringBuilder();
HttpClient client = new DefaultHttpClient();
HttpGet httpGet = new HttpGet(url);
try {
HttpResponse response = client.execute(httpGet);
StatusLine statusLine = response.getStatusLine();
int statusCode = statusLine.getStatusCode();
if (statusCode == 200) { // Download OK
HttpEntity entity = response.getEntity();
InputStream content = entity.getContent();
BufferedReader reader = new BufferedReader(new InputStreamReader(content));
String line;
while ((line = reader.readLine()) != null) {
str.append(line);
}
} else {
Log.e("Log", "Failed to download result..");
}
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return str.toString();
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}
}
ถ้าผมต้องการเอาค่า Intent จากหน้าอื่นมาเพื่อกำหนดค่า WHERE ในการแสดงข้อมูล ควรเอาใส่ตรงไหนครั้งลองหลายทีแล้วไม่ได้สักที
อันนี้รับค่าIntentครับ
Code (Java)
Intent intent= getIntent();
final String Fac_U = intent.getStringExtra("Fac_U");
List<NameValuePair> params = new ArrayList<NameValuePair>();
params.add(new BasicNameValuePair("sFac_U",Fac_U));
อันนี้phpครับ
Code (PHP)
?php
$objConnect = mysql_connect("ftp.likehistory.com","likehistor","0801080775");
$objDB = mysql_select_db("likehistor_db");
mysql_query("SET NAMES UTF8");
$strFac_U = $_POST["sFac_U"];
$strSQL = "SELECT * FROM News WHERE Num_fac = '".$strFac_U."'";
$objQuery = mysql_query($strSQL);
$intNumField = mysql_num_fields($objQuery);
$resultArray = array();
while($obResult = mysql_fetch_array($objQuery))
{
$arrCol = array();
for($i=0;$i<$intNumField;$i++)
{
$arrCol[mysql_field_name($objQuery,$i)] = $obResult[$i];
}
array_push($resultArray,$arrCol);
}
mysql_close($objConnect);
echo json_encode($resultArray);
?>
Tag : Mobile, Android
Date :
2013-11-27 11:30:21
By :
opassawad
View :
1499
Reply :
1
ใช้การส่งค่า POST ไปยัง Server ก่อนครับ แล้วค่อย return ค่า JSON กลับมา
Android ProgressBar/ProgressDialog Search Display result Data from Web Server
Date :
2013-11-27 13:28:20
By :
mr.win
Load balance : Server 03