Java Development

[jaff]

public class Connection extends MainScreen{
	CompanyScreen mainScreen;
	HttpConnection connection = null;
	InputStream is = null;
	OutputStream os = null;
	StringBuffer sb = new StringBuffer();
	LabelField perusahaan;
	
	
	public Connection(){
		 perusahaan = new LabelField();
		 add(perusahaan);
		 Conn c = new Conn();
		 PleaseWaitPopupScreen.showScreenAndWait(c, "Sedang Memuat...");
		
		
	}
	
	public void dataMasuk(String[] tempat)
	{
		perusahaan.setText(perusahaan.getText()+tempat);
	}
	
	
	class Conn implements Runnable{
		String[] dataComp;
		String[] wadah;

		
		public void run(){     
		            	  try{
		      				net.rim.blackberry.api.browser.URLEncodedPostData encoder = new net.rim.blackberry.api.browser.URLEncodedPostData(null, false);
		      				connection = (HttpConnection) Connector.open("http://ecc.ft.ugm.ac.id/bbapp/vacbycomp.php");
		      			    connection.setRequestMethod(HttpConnection.GET);    			    connection.setRequestProperty(net.rim.device.api.io.http.HttpProtocolConstants.HEADER_CONTENT_TYPE,"application /x-www-form-urlencoded");
		      			    byte[] postBytes = encoder.toString().getBytes("UTF-8");
		      			    connection.setRequestProperty(net.rim.device.api.io.http.HttpProtocolConstants.HEADER_CONTENT_LENGTH, Integer.toString(postBytes.length));
		      			    os = connection.openOutputStream();
		      			
		      			    os.write(postBytes);
		      			    os.flush();
		      			    os.close();

		      			      if (connection.getResponseCode() == javax.microedition.io.HttpConnection.HTTP_OK) {
		      			      is=connection.openInputStream();
		      			    
		      			              String xml = "";
		      			              int ch;

		      			              while((ch=is.read()) != -1){
		      			            	  sb.append((char)ch);

		      			              }
		      			              xml = sb.toString();
		      			              
		      			              JSONObject jso = new JSONObject(xml);    //response from the server
		      								      								
		      		  JSONArray mystring = jso.getJSONArray("company");           
		      	          JSONArray address = jso.getJSONArray("address");
		      	          JSONArray logoComp = jso.getJSONArray("logoComp");
		      		  JSONArray desc = jso.getJSONArray("desc");
		      		 JSONArray id_comp = jso.getJSONArray("id_comp");
		      					           
		      					            
		      			String[] dataComp = new String[mystring.length()];
		      			String[] dataAdd = new String[address.length()];
		      		        String[] dataImg = new String[logoComp.length()];
		      		        String[] dataDesc = new String[desc.length()];
		      		        String[] dataId = new String[id_comp.length()];
		      					   			
		      				for(int i=0;i<mystring.length();i++){
		      					           wadah[i]=dataComp[i];
		      					    }
		      			       }
		      				
		      			   } catch (java.io.IOException e) 
		      			   {
		      			   } catch (JSONException e) {
		      				// TODO Auto-generated catch block
		      				e.printStackTrace();
		      			}
		            	 try {
		            		 Thread.sleep(5000);
		            		 
		            	 }catch (InterruptedException ex){
		            		 
		            	 }
		            	 final String[] tempat = wadah;
		            	 UiApplication.getUiApplication().invokeLater(new Runnable(){
		            		 public void run(){
		            			 dataMasuk(tempat);
		            		 }
		            	 });

 it is my code? if i compile im getting error... whats wrong with my code?

[jitendrasharma]

What Error You are getting compile time, please explain, 

I am assuming you are following PleaseWaitPopupScreen described in kb articles, which accept parameter thread, not Runnable, so you would need to make the thread

Conn c = new Conn();

Thread thread=new Thread(c); thread.start();

 PleaseWaitPopupScreen.showScreenAndWait(thread, "Sedang Memuat...");

[jaff]

Hi jitten... thanks again...
im create pleasewaitscreen like peter_strange sample...

im modify code like ur posting... but still get error...

in first run application result is "null" somtimes get error app... whats the problem?

[jitendrasharma]

Please find the edited source: 

Null Pointer you are getting because of arrays are not initialized, and I have edited code as there is no requirement to post parameter in this service.

import java.io.InputStream;
import java.io.OutputStream;

import javax.microedition.io.Connector;
import javax.microedition.io.HttpConnection;

import org.json.me.JSONArray;
import org.json.me.JSONException;
import org.json.me.JSONObject;

import com.bharatberry.container.PleaseWaitPopupScreen;

import net.rim.device.api.ui.UiApplication;
import net.rim.device.api.ui.component.LabelField;
import net.rim.device.api.ui.container.MainScreen;

public class Connection extends MainScreen{
	HttpConnection connection = null;
	InputStream is = null;
	OutputStream os = null;
	StringBuffer sb = new StringBuffer();
	LabelField perusahaan;


	public Connection(){
		perusahaan = new LabelField();
		add(perusahaan);
		Conn c = new Conn();
		Thread thread= new Thread(c);
		PleaseWaitPopupScreen.showScreenAndWait(thread, "Sedang Memuat...");
		thread.start();


	}

	public void dataMasuk(String[] tempat)
	{
		perusahaan.setText(perusahaan.getText()+tempat);
	}


	class Conn implements Runnable{
		String[] dataComp;
		String[] wadah;


		public void run(){     
			try{
				//net.rim.blackberry.api.browser.URLEncodedPostData encoder = new net.rim.blackberry.api.browser.URLEncodedPostData(null, false);
				connection = (HttpConnection) Connector.open("http://ecc.ft.ugm.ac.id/bbapp/vacbycomp.php");
				connection.setRequestMethod(HttpConnection.GET);    			    connection.setRequestProperty(net.rim.device.api.io.http.HttpProtocolConstants.HEADER_CONTENT_TYPE,"application /x-www-form-urlencoded");
				//byte[] postBytes = encoder.toString().getBytes("UTF-8");
				//connection.setRequestProperty(net.rim.device.api.io.http.HttpProtocolConstants.HEADER_CONTENT_LENGTH, Integer.toString(postBytes.length));
				//os = connection.openOutputStream();

				//os.write(postBytes);
				//os.flush();
				//os.close();

				if (connection.getResponseCode() == javax.microedition.io.HttpConnection.HTTP_OK) {
					is=connection.openInputStream();

					String xml = "";
					int ch;

					while((ch=is.read()) != -1){
						sb.append((char)ch);

					}
					xml = sb.toString();

					JSONObject jso = new JSONObject(xml);    //response from the server

					JSONArray mystring = jso.getJSONArray("company");           
					JSONArray address = jso.getJSONArray("address");
					JSONArray logoComp = jso.getJSONArray("logoComp");
					JSONArray desc = jso.getJSONArray("desc");
					JSONArray id_comp = jso.getJSONArray("id_comp");


					dataComp = new String[mystring.length()];
					wadah = new String[mystring.length()];
					String[] dataAdd = new String[address.length()];
					String[] dataImg = new String[logoComp.length()];
					String[] dataDesc = new String[desc.length()];
					String[] dataId = new String[id_comp.length()];

					for(int i=0;i<mystring.length();i++){
						wadah[i]=dataComp[i];
					}
				}

			} catch (java.io.IOException e) 
			{
			} catch (JSONException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
			try {
				Thread.sleep(5000);

			}catch (InterruptedException ex){

			}
			final String[] tempat = wadah;
			UiApplication.getUiApplication().invokeLater(new Runnable(){
				public void run(){
					dataMasuk(tempat);
				}
			});
		}
	}
}

[jaff]

i have try your code edited on post... but getting error LJava.lang.string...

im cek my php on browser is run and load data JSON normaly...

my situasion is i have manager with loop...

and array data with loop to... this situasion make me confuse create code...

[jitendrasharma]

Its because, you are not parsing data correctly. I am looking into parsing code, and will post parsing code, as soon finish with it.

[jitendrasharma]

I have Edited your parsing and add a listview to print companyname from the xml.

import java.io.InputStream;
import java.io.OutputStream;

import javax.microedition.io.Connector;
import javax.microedition.io.HttpConnection;

import org.json.me.JSONArray;
import org.json.me.JSONException;
import org.json.me.JSONObject;

import com.bharatberry.container.PleaseWaitPopupScreen;

import net.rim.device.api.system.Display;
import net.rim.device.api.ui.Graphics;
import net.rim.device.api.ui.UiApplication;
import net.rim.device.api.ui.component.LabelField;
import net.rim.device.api.ui.component.ListField;
import net.rim.device.api.ui.component.ListFieldCallback;
import net.rim.device.api.ui.container.MainScreen;

public class Connection extends MainScreen implements ListFieldCallback{
	HttpConnection connection = null;
	InputStream is = null;
	OutputStream os = null;
	StringBuffer sb = new StringBuffer();
	LabelField perusahaan;
	ListField lfData=null;
	public InfoStores[] dataComp;

	public Connection(){
		perusahaan = new LabelField();
		add(perusahaan);
		Conn c = new Conn();
		Thread thread= new Thread(c);
		PleaseWaitPopupScreen.showScreenAndWait(thread, "Sedang Memuat...");
		thread.start();
		dataComp=new InfoStores[0];
		lfData=new ListField();
		add(lfData);
		lfData.setCallback(this);
	}


	public void drawListRow(ListField listField, Graphics graphics, int index,
			int y, int width) {
		// TODO Auto-generated method stub
		InfoStores item=dataComp[index];
		graphics.drawText(item.getName(), 0, y);
	}

	public Object get(ListField listField, int index) {
		// TODO Auto-generated method stub
		return dataComp[index];
	}

	public int getPreferredWidth(ListField listField) {
		// TODO Auto-generated method stub
		return Display.getWidth();
	}

	public int indexOfList(ListField listField, String prefix, int start) {
		// TODO Auto-generated method stub
		return 0;
	}


	public void dataMasuk()
	{
		//perusahaan.setText(perusahaan.getText()+tempat);
		lfData.setSize(dataComp.length);
		lfData.invalidate();
	}


	class Conn implements Runnable{


		public void run(){     
			try{
				connection = (HttpConnection) Connector.open("http://ecc.ft.ugm.ac.id/bbapp/vacbycomp.php");
				connection.setRequestMethod(HttpConnection.GET);    			    connection.setRequestProperty(net.rim.device.api.io.http.HttpProtocolConstants.HEADER_CONTENT_TYPE,"application /x-www-form-urlencoded");
				if (connection.getResponseCode() == javax.microedition.io.HttpConnection.HTTP_OK) {
					is=connection.openInputStream();

					String xml = "";
					int ch;

					while((ch=is.read()) != -1){
						sb.append((char)ch);

					}
					xml = sb.toString();

					JSONObject jso = new JSONObject(xml);    //response from the server

					JSONArray mystring = jso.getJSONArray("company");           
					JSONArray address = jso.getJSONArray("address");
					JSONArray logoComp = jso.getJSONArray("logoComp");
					JSONArray desc = jso.getJSONArray("desc");
					JSONArray id_comp = jso.getJSONArray("id_comp");


					dataComp = new InfoStores[mystring.length()];
					for(int i=0;i<mystring.length();i++)
					{
						dataComp[i]=new InfoStores();
						dataComp[i].setName(mystring.getString(i));
						dataComp[i].setId(id_comp.getString(i));
						dataComp[i].setDesc(desc.getString(i));
						dataComp[i].setLogoUrl(logoComp.getString(i));
						dataComp[i].setAddress(address.getString(i));
					}


				}

			} catch (java.io.IOException e) 
			{
			} catch (JSONException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
			try {
				Thread.sleep(5000);

			}catch (InterruptedException ex){

			}
			UiApplication.getUiApplication().invokeLater(new Runnable(){
				public void run(){
					dataMasuk();
				}
			});
		}
	}



}

and datastructure class code:

public class InfoStores {
String id="";
String name="";
String address="";
String desc="";
String logoUrl="";
public String getId() {
	return id;
}
public void setId(String id) {
	this.id = id;
}
public String getName() {
	return name;
}
public void setName(String name) {
	this.name = name;
}
public String getAddress() {
	return address;
}
public void setAddress(String address) {
	this.address = address;
}
public String getDesc() {
	return desc;
}
public void setDesc(String desc) {
	this.desc = desc;
}
public String getLogoUrl() {
	return logoUrl;
}
public void setLogoUrl(String logoUrl) {
	this.logoUrl = logoUrl;
}
}

[jaff]

oh...my god...wonderfull... u is my best friend in this forum... u know my  problem...

i have try your code.... and sucsessfull... now im learn your code and try to other condition... not in labelField... but on some manager... thankkkkkssss fullll.......