Calling the PHP web service in android and fetch the result in Android

Suppose the url of the php webservice is as follow :

http://XX.XX.XXX.XX/~serverji/home_expanditure/gethistory.php?uid=4&month=10&year=2012

XX.XX.XXX.XX stands for the server IP.

And the response from the this url is like this :

{"date":["2012-10-13","2012-10-11","2012-10-08"],"category":["The Food Expense","rent","Communication costs"],"description":["nasto","google","fii"],"expenditure":["40","100","123"]}

Then we have to go for this kind of requesting to the url :


public class HistoryDto {
  String date;
  String category;
  String descri;
  float expe;
}


static String url = "http://XX.XX.XX.XXX/~serverji/home_expanditure/";


public static ArrayList<HistoryDto> gethistory(int month, String year) {
String result = "";
InputStream is = null;
ArrayList<HistoryDto> hisList = new ArrayList<HistoryDto>();

ArrayList<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
nameValuePairs.add(new BasicNameValuePair("uid", Myapplication
.getuserID()));
nameValuePairs.add(new BasicNameValuePair("month", "" + month));
nameValuePairs.add(new BasicNameValuePair("year", year));

try {
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost(url + "gethistory.php?");
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
HttpResponse response = httpclient.execute(httppost);
HttpEntity entity = response.getEntity();
is = entity.getContent();
} catch (Exception e) {
Log.e("log_tag", "Error in http connection " + e.toString());
}
// convert response to string
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();
result = sb.toString().trim();

} catch (Exception e) {
Log.e("log_tag", "Error converting result " + e.toString());
}

try {
JSONObject jObj = new JSONObject(result);
JSONArray JArray_date = jObj.getJSONArray("date");
JSONArray JArray_cat = jObj.getJSONArray("category");
JSONArray JArray_dis = jObj.getJSONArray("description");
JSONArray JArray_exp = jObj.getJSONArray("expenditure");
for (int i = 0; i < JArray_date.length(); i++) {
HistoryDto dto = new HistoryDto();
dto.date = JArray_date.getString(i);
dto.category = JArray_cat.getString(i);
dto.descri = JArray_dis.getString(i);
dto.expe = (float) JArray_exp.getDouble(i);

hisList.add(dto);
}

} catch (JSONException e) {
e.printStackTrace();
}
return hisList;
}



This is how we got the result to the ArrayList and populate in the android Activities.

Make the thread to display timer for the Games using the method to Display Time in HH:MM:SS format

Firstly make one static variable for the counter for the timer which increase the every sec.

static int con = 0;

Now make one thread in which it sleeps every one sec and display it in runOnUiThread. This thread used to Display the counter in HH:MM:SS format using the simply one formatTime method.


new Thread(new Runnable() {
@Override
public void run() {
while (true) {
runOnUiThread(new Runnable() {
@Override
public void run() {
counter.setText(formatTime(Long.parseLong("" + con)));
con++;
}
});
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}).start();


The formatTime method to display the counter in HH:MM:SS format is below.



private String formatTime(long millis) {
String output = "00:00:00";
long seconds = millis;
long minutes = seconds / 60;
long hours = minutes / 60;

seconds = seconds % 60;
minutes = minutes % 60;
hours = hours % 60;

String minutesD = String.valueOf(minutes);
String hoursD = String.valueOf(hours);

if (minutes < 10)
minutesD = "0" + minutes;
if (hours < 10)
hoursD = "0" + hours;

output = hoursD + " : " + minutesD;
return output;
}



This is how we can put the Timer in Game or any part of coding where the difference between the time is needed at that time also we can set the kind of methods.

Getting contact list from the phone

just copy the below code in your android code and see the LOGCAT.

import android.app.Activity;

import android.content.ContentResolver;

import android.database.Cursor;

import android.os.Bundle;

import android.provider.ContactsContract;

public class GetContactsDemo extends Activity {

@Override

   public void onCreate(Bundle savedInstanceState) {

       super.onCreate(savedInstanceState);

       setContentView(R.layout.main);

       readContacts();

   }

 

   public void readContacts(){

        ContentResolver cr = getContentResolver();

        Cursor cur = cr.query(ContactsContract.Contacts.CONTENT_URI,

               null, null, null, null);

 

        if (cur.getCount() > 0) {

           while (cur.moveToNext()) {

               String id = cur.getString(cur.getColumnIndex(ContactsContract.Contacts._ID));

               String name = cur.getString(cur.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));

               if (Integer.parseInt(cur.getString(cur.getColumnIndex(ContactsContract.Contacts.HAS_PHONE_NUMBER))) > 0) {

                   System.out.println("name : " + name + ", ID : " + id);

 

                   // get the <span id="IL_AD10" class="IL_AD">phone number</span>

                   Cursor pCur = cr.query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI,null,

                                          ContactsContract.CommonDataKinds.Phone.CONTACT_ID +" = ?",

                                          new String[]{id}, null);

                   while (pCur.moveToNext()) {

                         String phone = pCur.getString(

                                pCur.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));

                         System.out.println("phone" + phone);

                   }

                   pCur.close();

 

 

                   // get email and type

 

                  Cursor emailCur = cr.query(

                           ContactsContract.CommonDataKinds.Email.CONTENT_URI,

                           null,

                           ContactsContract.CommonDataKinds.Email.CONTACT_ID + " = ?",

                           new String[]{id}, null);

                   while (emailCur.moveToNext()) {

                       // This would allow you get several email addresses

                           // if the email addresses were stored in an array

                       String email = emailCur.getString(

                                     emailCur.getColumnIndex(ContactsContract.CommonDataKinds.Email.DATA));

                       String emailType = emailCur.getString(

                                     emailCur.getColumnIndex(ContactsContract.CommonDataKinds.Email.TYPE));

 

                     System.out.println("Email " + email + " Email Type : " + emailType);

                   }

                   emailCur.close();

 

                   // Get note.......

                   String noteWhere = ContactsContract.Data.CONTACT_ID + " = ? AND " + ContactsContract.Data.MIMETYPE + " = ?";

                   String[] noteWhereParams = new String[]{id,

                   ContactsContract.CommonDataKinds.Note.CONTENT_ITEM_TYPE};

                           Cursor noteCur = cr.query(ContactsContract.Data.CONTENT_URI, null, noteWhere, noteWhereParams, null);

                   if (noteCur.moveToFirst()) {

                       String note = noteCur.getString(noteCur.getColumnIndex(ContactsContract.CommonDataKinds.Note.NOTE));

                     System.out.println("Note " + note);

                   }

                   noteCur.close();

 

                   //Get Postal Address....

 

                   String addrWhere = ContactsContract.Data.CONTACT_ID + " = ? AND " + ContactsContract.Data.MIMETYPE + " = ?";

                   String[] addrWhereParams = new String[]{id,

                       ContactsContract.CommonDataKinds.StructuredPostal.CONTENT_ITEM_TYPE};

                   Cursor addrCur = cr.query(ContactsContract.Data.CONTENT_URI,

                               null, null, null, null);

                   while(addrCur.moveToNext()) {

                       String poBox = addrCur.getString(

                                    addrCur.getColumnIndex(ContactsContract.CommonDataKinds.StructuredPostal.POBOX));

                       String street = addrCur.getString(

                                    addrCur.getColumnIndex(ContactsContract.CommonDataKinds.StructuredPostal.STREET));

                       String city = addrCur.getString(

                                    addrCur.getColumnIndex(ContactsContract.CommonDataKinds.StructuredPostal.CITY));

                       String state = addrCur.getString(

                                    addrCur.getColumnIndex(ContactsContract.CommonDataKinds.StructuredPostal.REGION));

                       String postalCode = addrCur.getString(

                                    addrCur.getColumnIndex(ContactsContract.CommonDataKinds.StructuredPostal.POSTCODE));

                       String country = addrCur.getString(

                                    addrCur.getColumnIndex(ContactsContract.CommonDataKinds.StructuredPostal.COUNTRY));

                       String type = addrCur.getString(

                                    addrCur.getColumnIndex(ContactsContract.CommonDataKinds.StructuredPostal.TYPE));

 

                       // Do something with these....

 

                   }

                   addrCur.close();

 

                   // Get Instant Messenger.........

                   String imWhere = ContactsContract.Data.CONTACT_ID + " = ? AND " + ContactsContract.Data.MIMETYPE + " = ?";

                   String[] imWhereParams = new String[]{id,

                       ContactsContract.CommonDataKinds.Im.CONTENT_ITEM_TYPE};

                   Cursor imCur = cr.query(ContactsContract.Data.CONTENT_URI,

                           null, imWhere, imWhereParams, null);

                   if (imCur.moveToFirst()) {

                       String imName = imCur.getString(

                                imCur.getColumnIndex(ContactsContract.CommonDataKinds.Im.DATA));

                       String imType;

                       imType = imCur.getString(

                                imCur.getColumnIndex(ContactsContract.CommonDataKinds.Im.TYPE));

                   }

                   imCur.close();

 

                   // Get Organizations.........

 

                   String orgWhere = ContactsContract.Data.CONTACT_ID + " = ? AND " + ContactsContract.Data.MIMETYPE + " = ?";

                   String[] orgWhereParams = new String[]{id,

                       ContactsContract.CommonDataKinds.Organization.CONTENT_ITEM_TYPE};

                   Cursor orgCur = cr.query(ContactsContract.Data.CONTENT_URI,

                               null, orgWhere, orgWhereParams, null);

                   if (orgCur.moveToFirst()) {

                       String orgName = orgCur.getString(orgCur.getColumnIndex(ContactsContract.CommonDataKinds.Organization.DATA));

                       String title = orgCur.getString(orgCur.getColumnIndex(ContactsContract.CommonDataKinds.Organization.TITLE));

                   }

                   orgCur.close();

               }

           }

      }

   }

}

You can get the all contacts in your Logcat. Just give the permission to the menifest for reading the contact.

Keep screen on when the Activity running using power manager

First of all make the object of the Power manage.

protected PowerManager.WakeLock mWakeLock;


Now in onCreate method use the following to make the screen ON in the particular activity.

final PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
this.mWakeLock = pm.newWakeLock(PowerManager.SCREEN_BRIGHT_WAKE_LOCK, "My Tag");
this.mWakeLock.acquire();

Finding the index of the Array from the given value

Let's say there is a number of values in array like the following.

int[] array = {1,2,3,4,5,6};

Arrays.asList(array).indexOf(4);

This will returns the index of the value in array.