example for parsing methods using Saxparsers

Step1 : for getting single tag value use below code:

public static ArrayList getListByTag(String msg,final String tag){

 

final ArrayList list=new ArrayList();

try{

list.clear();  

SAXParserFactory factory=SAXParserFactory.newInstance();

SAXParser parser=factory.newSAXParser();

// parser.parse(is, dh)//

parser.parse(new InputSource(new StringReader(msg)),new DefaultHandler(){

boolean tag_value=false; 

@Override

public void startElement(String uri, String localName,

String qName, Attributes attributes) throws SAXException {

super.startElement(uri, localName, qName, attributes);

if(qName.equalsIgnoreCase(tag)){

tag_value=true; 

}

 

} 

@Override

public void characters(char[] ch, int start, int length)

throws SAXException {

super.characters(ch, start, length);

if(tag_value){

list.add(new String(ch,start,length));  

}

}   

@Override

public void endElement(String uri, String localName, String qName)

throws SAXException {

super.endElement(uri, localName, qName);

if(qName.equalsIgnoreCase(tag)){

tag_value=false; 

} 

}

});  

}catch (Exception e) {

e.printStackTrace(); 

}

return list; 

}  

Step 2 : for getting list of tag values use below code:

public static ArrayList> getListofHouseHoldsByTag(String msg , final String tag){

final ArrayList>  list_values=new ArrayList>();  

 

try{

SAXParserFactory factory=SAXParserFactory.newInstance();

SAXParser parser=factory.newSAXParser();

 

parser.parse(new InputSource(new StringReader(msg)),new DefaultHandler(){

ArrayList list;

boolean tag_value=false; 

@Override

public void startElement(String uri, String localName,

String qName, Attributes attributes) throws SAXException {

super.startElement(uri, localName, qName, attributes);

if(qName.equalsIgnoreCase(tag)){

tag_value=true; 

list=new ArrayList();

}  

 

}

@Override

public void characters(char[] ch, int start, int length)

throws SAXException {

super.characters(ch, start, length);

if(tag_value){

list.add(new String(ch,start,length));  

} 

}   

@Override

public void endElement(String uri, String localName, String qName)

throws SAXException {

super.endElement(uri, localName, qName);

if(qName.equalsIgnoreCase(tag)){

tag_value=false;  

list_values.add(list);   

}

}

});  

}catch (Exception e) {

e.printStackTrace(); 

}

return list_values;   

} 

expandablelistview example in android

Step1: Create a project with the name of MainActivity.

Step2: design activity_main.xml and add code as below..
 
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity" >

            android:id="@+id/laptop_list"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true"/>  




Step3: add new xml file with the name of  group_item.xml and add code as below.

    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

            android:id="@+id/laptop"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Small Text"
        android:paddingLeft="25dp"
        android:textAppearance="?android:attr/textAppearanceSmall" />




Step4: add new xml file with the name of  Child_item.xml and add code as below.

    android:layout_width="match_parent"
    android:layout_height="match_parent">

              android:id="@+id/delete"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentRight="true"
        android:src="@drawable/ic_delete"
        android:contentDescription="@string/app_name"/>

              android:id="@+id/laptop"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignBottom="@+id/delete"
        android:layout_alignParentLeft="true"
        android:text="textview"
        android:paddingLeft="25dp" />





Step5: add code in MainActivity.java

package com.example.expandablelistviewex;

import java.util.ArrayList;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;

import android.app.Activity;
import android.os.Bundle;
import android.util.DisplayMetrics;
import android.view.View;
import android.widget.ExpandableListView;
import android.widget.ExpandableListView.OnChildClickListener;
import android.widget.Toast;

public class MainActivity extends Activity
{
ExpandableListView expListView;
List groupList;
List childList;
Map> laptopCollection;

@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
expListView=(ExpandableListView)findViewById(R.id.laptop_list);
createGroupList();
createCollection();

final ExpandableListAdapter expandableListadapter=new ExpandableListAdapter(this,groupList,laptopCollection);
expListView.setAdapter(expandableListadapter);

//setGroupIndicatorToRight();
expListView.setOnChildClickListener(new OnChildClickListener()
{
           public boolean onChildClick(ExpandableListView parent, View v,int groupPosition, int childPosition, long id)
           {
               final String selected = (String) expandableListadapter.getChild(groupPosition, childPosition);
               Toast.makeText(getBaseContext(), selected, Toast.LENGTH_LONG).show();
         
               return true;
           }
       });
}
public void createGroupList()
{
groupList=new ArrayList();
groupList.add("HP");
        groupList.add("Dell");
        groupList.add("Lenovo");
        groupList.add("Sony");
        groupList.add("HCL");
        groupList.add("Samsung");
}

public void createCollection()
{
String[] hpModels = { "HP Pavilion G6-2014TX", "ProBook HP 4540","HP Envy 4-1025TX" };
String[] hclModels = { "HCL S2101", "HCL L2102", "HCL V2002" };
String[] lenovoModels = { "IdeaPad Z Series", "Essential G Series","ThinkPad X Series", "Ideapad Z Series" };
String[] sonyModels = { "VAIO E Series", "VAIO Z Series","VAIO S Series", "VAIO YB Series" };
String[] dellModels = { "Inspiron", "Vostro", "XPS" };
String[] samsungModels = { "NP Series", "Series 5", "SF Series" };

laptopCollection=new LinkedHashMap>();
        for(String laptop:groupList)
        {
        if(laptop.equalsIgnoreCase("HP"))
        {
        loadchild(hpModels);
        }
        else if(laptop.equalsIgnoreCase("Dell"))
        {
        loadchild(dellModels);
        }
        else if(laptop.equalsIgnoreCase("Lenovo"))
        {
        loadchild(lenovoModels);
        }
       
        else if(laptop.equalsIgnoreCase("Sony"))
        {
        loadchild(sonyModels);
        }
        else if(laptop.equalsIgnoreCase("HCL"))
        {
        loadchild(hclModels);
        }
        else if(laptop.equalsIgnoreCase("Samsung"))
        {
        loadchild(samsungModels);
        }
       
       
        laptopCollection.put(laptop, childList);
        }
}
private void loadchild(String[] laptopmodels)
{
childList=new ArrayList();
for(String models:laptopmodels)
{
childList.add(models);
}
}

private void setGroupIndicatorToRight()
{
        /* Get the screen width */
        DisplayMetrics dm = new DisplayMetrics();
        getWindowManager().getDefaultDisplay().getMetrics(dm);
        int width = dm.widthPixels;
        expListView.setIndicatorBounds(width - getDipsFromPixel(35), width- getDipsFromPixel(5));
    }
private int getDipsFromPixel(float pixels)
{
 // Get the screen's density scale
        final float scale = getResources().getDisplayMetrics().density;
        // Convert the dps to pixels, based on density scale
        return (int) (pixels * scale + 0.5f);
}

}

Step6: Add adapter class with the name of  ExpandableListAdapter.java and add the following code like as below.

package com.example.expandablelistviewex;

import java.util.List;
import java.util.Map;

import android.app.AlertDialog;
import android.content.DialogInterface;
import android.graphics.Typeface;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.BaseExpandableListAdapter;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;

public class ExpandableListAdapter extends BaseExpandableListAdapter
{
MainActivity mainActivity;
List laptops;
Map> laptopCollection;

public ExpandableListAdapter(MainActivity mainActivity,List groupList, Map> laptopCollection) 
{

this.mainActivity=mainActivity;
this.laptops=groupList;
this.laptopCollection=laptopCollection;
}


public Object getChild(int groupPosition, int childPosition)
{
// TODO Auto-generated method stub
return laptopCollection.get(laptops.get(groupPosition)).get(childPosition);
}

public long getChildId(int groupPosition, int childPosition)
{
// TODO Auto-generated method stub
return childPosition;
}

public View getChildView(final int groupPosition, final int childPosition,boolean isLastChild, View convertView, ViewGroup parent)
{

String laptop=(String)getChild(groupPosition, childPosition);

LayoutInflater inflater = mainActivity.getLayoutInflater();

if(convertView==null)
{
convertView = inflater.inflate(R.layout.child_item, null);
}

TextView item = (TextView) convertView.findViewById(R.id.laptop);


item.setTypeface(null, Typeface.BOLD);
item.setText(laptop);
       ImageView delete = (ImageView) convertView.findViewById(R.id.delete);
       delete.setOnClickListener(new OnClickListener() {
         
           public void onClick(View v) {
               AlertDialog.Builder builder = new AlertDialog.Builder(mainActivity);
               builder.setMessage("Do you want to remove?");
               builder.setCancelable(false);
               builder.setPositiveButton("Yes",
                       new DialogInterface.OnClickListener() {
                           public void onClick(DialogInterface dialog, int id) {
                               List child = 
                                   laptopCollection.get(laptops.get(groupPosition));
                               child.remove(childPosition);
                               notifyDataSetChanged();
                           }
                       });
               builder.setNegativeButton("No",
                       new DialogInterface.OnClickListener() {
                           public void onClick(DialogInterface dialog, int id) {
                               dialog.cancel();
                           }
                       });
               AlertDialog alertDialog = builder.create();
               alertDialog.show();
           }
       });

return convertView;
}
public int getChildrenCount(int groupPosition)
{
return laptopCollection.get(laptops.get(groupPosition)).size();
}

public Object getGroup(int groupPosition)
{
return laptops.get(groupPosition);
}

public int getGroupCount()
{
return laptops.size();
}

public long getGroupId(int groupPosition)
{
// TODO Auto-generated method stub
return groupPosition;
}

public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent)
{
String laptopname=(String)getGroup(groupPosition);

if(convertView==null)
{
LayoutInflater infalInflater = (LayoutInflater)mainActivity.getSystemService(mainActivity.LAYOUT_INFLATER_SERVICE);
            convertView = infalInflater.inflate(R.layout.group_item,null);
}
TextView item = (TextView) convertView.findViewById(R.id.laptop);
item.setText(laptopname);
return convertView;
}

public boolean hasStableIds()
{
// TODO Auto-generated method stub
return true;
}

public boolean isChildSelectable(int groupPosition, int childPosition)
{
// TODO Auto-generated method stub
return true;
}

}

Step7: Now Run the project, You will get output

Note: for more details have a look in this blog.
 http://theopentutorials.com/tutorials/android/listview/android-expandable-list-view-example/

phone gap for android

http://cleancodedevelopment-qualityseal.blogspot.in/2012/12/first-phonegap-app-with-android-using.html

imporatant topics in android

http://www.hasmukhbhadani.com/search/label/Display%20Image%20in%20Round%20Corner%20android

get images from camera/galary and upload to web service

private static final int CAMERA_REQUEST = 1888;
//from galary
    private static int RESULT_LOAD_IMAGE = 1;
        ImageView iv1,iv;
Bitmap  bmpprof;
Bitmap  bmp;
final Context context = this;
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);

requestWindowFeature(Window.FEATURE_NO_TITLE);
                //write what ever you required
         }

///uploading profile image

public void uploadprofilepic(View v)
{
final Dialog dialog = new Dialog(context);
dialog.setContentView(R.layout.alert);
dialog.show();
dialog.setTitle("ProfilePic");
ImageView btn1=(ImageView)dialog.findViewById(R.id.button1);
ImageView btn2=(ImageView)dialog.findViewById(R.id.button2);
    ImageView iv=(ImageView)dialog.findViewById(R.id.imageView9);
   // iv.setImageURI(ApplicationConstants.profile_pic_url);
    iv.setImageBitmap(bmpprof);
btn1.setOnClickListener(new OnClickListener()
  {

 @Override
 public void onClick(View v) {
 Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
              startActivityForResult(cameraIntent, CAMERA_REQUEST);
              dialog.dismiss();
         
           }

  });

  btn2.setOnClickListener(new OnClickListener()
  {
@Override
public void onClick(View v) {
 
Intent i = new Intent(
Intent.ACTION_PICK,
android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);

startActivityForResult(i, RESULT_LOAD_IMAGE);
 dialog.dismiss();

}
});
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data)
{
        if (requestCode == CAMERA_REQUEST && data!=null) {
                    Bitmap photo = (Bitmap) data.getExtras().get("data");
                    iv1.setImageBitmap(photo);
                 
                    ByteArrayOutputStream baos = new ByteArrayOutputStream();
                    photo.compress(Bitmap.CompressFormat.JPEG, 100, baos);
           byte[] b = baos.toByteArray();
           String base64String=Base64.encode(b);
         
          ImageUploadingTask task=new ImageUploadingTask(this, base64String);
          task.execute();
       
           
                 
        }else if(requestCode == RESULT_LOAD_IMAGE && resultCode == RESULT_OK && null != data)
        {
Uri selectedImage = data.getData();
String[] filePathColumn = { MediaStore.Images.Media.DATA };

Cursor cursor = getContentResolver().query(selectedImage,
filePathColumn, null, null, null);
cursor.moveToFirst();

int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
String picturePath = cursor.getString(columnIndex);
cursor.close();

iv1.setImageBitmap(BitmapFactory.decodeFile(picturePath));
   Bitmap bm = BitmapFactory.decodeFile(picturePath);
   ByteArrayOutputStream baos = new ByteArrayOutputStream();
   bm.compress(Bitmap.CompressFormat.JPEG, 100, baos);
   byte[] b = baos.toByteArray();
 
   String base64String=Base64.encode(b);

   ImageUploadingTask task=new ImageUploadingTask(this, base64String);
        task.execute();
     
}
       }


class ImageUploadingTask extends AsyncTask{

DashboardActivity dActivity;
String base_64bstring;
ProgressDialog pDialog;


public ImageUploadingTask(DashboardActivity  activity,String b64string){

this.dActivity=activity;
this.base_64bstring=b64string;
}

protected void onPreExecute()
{
super.onPreExecute();
pDialog=ApplicationConstants.getDialog(dActivity);
pDialog.show();
}


@Override
protected String doInBackground(String... params)
{

System.out.println(base_64bstring);
AddEvent event=new AddEvent();
event.UploadPhoto(base_64bstring);
return null;
}

@Override
protected void onPostExecute(String result)
{
super.onPostExecute(result);
pDialog.dismiss();
}
}






AddEvent .java:


public String UploadPhoto(String byteString)
{
String SOAP_ACTION1 = "";
String NAMESPACE = "";
String METHOD_NAME1 = "";
String URL = "";  
String result_="";  

SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME1);      

//request.addProperty("b64string", byteString);
//request.addProperty("PhotoName", System.currentTimeMillis()+".jpg");
//request.addProperty("UserID", ApplicationConstants.user_id);




SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
envelope.setOutputSoapObject(request);
envelope.dotNet = true;
 
try {
HttpTransportSE androidHttpTransport = new HttpTransportSE(URL);


androidHttpTransport.call(SOAP_ACTION1, envelope);


SoapObject result = (SoapObject)envelope.bodyIn;
if(result != null)
{
result_=result.getProperty(0).toString();
}
else
{
result_="no data found";
}
} catch (Exception e) {
e.printStackTrace();
}
//System.out.print(result_);
return result_;
}

bind image to imageview from webservice value

ArrayList image;

ImageView imagephoto=(ImageView)convertView.findViewById(R.id.imagephoto);


ImagePhotoTask iptask=new ImagePhotoTask(this,imagephoto,image.get(position));
iptask.execute();
//here image.get(position) value from webservice


//binding value to image view

class ImagePhotoTask  extends AsyncTask

{
HouseHoldAdapter adapter;
ImageView iView;
String photo_url;
Bitmap bmp;

ProgressDialog pDialog;



@Override
protected void onPreExecute() {
super.onPreExecute();

pDialog=ApplicationConstants.getDialog(households);

pDialog.show();

}


public ImagePhotoTask(HouseHoldAdapter houseHoldAdapter,
ImageView imagephoto, String url) {

this.adapter=houseHoldAdapter;
this.iView=imagephoto;
this.photo_url=url;

}
@Override
protected void onPostExecute(String result) {

super.onPostExecute(result);
try{
iView.setImageBitmap(bmp);
//System.out.println(" ---------------------------------------      "+bmp.getByteCount());

}catch (Exception e) {
iView.setImageDrawable(households.getResources().getDrawable(R.drawable.ic_launcher));
}
pDialog.dismiss();
}


@Override
protected String doInBackground(String... params)
{
try {
URL u=new URL(photo_url);    
        InputStream isr=u.openStream();
         bmp=BitmapFactory.decodeStream(isr);
     

    } catch(Exception e)
    {

    e.printStackTrace();
   
    // pDialog.dismiss();

 
    }
return null;
}
}

date picker example

DatePickerDialog.OnDateSetListener dpd=new DatePickerDialog.OnDateSetListener() {

@Override
public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth)
{    
txtDateOfBirth.setText((monthOfYear+1)+"/"+dayOfMonth+"/"+year);
}
};

  Calendar cal=Calendar.getInstance();
  int year=cal.get(Calendar.YEAR);
  int monthOfYear=cal.get(Calendar.MONTH);
  int dayOfMonth=cal.get(Calendar.DAY_OF_MONTH);
   final DatePickerDialog d_dialog=new DatePickerDialog(this, dpd , year, monthOfYear, dayOfMonth);
   txtDateOfBirth.setOnClickListener(new OnClickListener()
{
@Override
public void onClick(View v)
{
d_dialog.show();
}
});