Tag Archives: Java Util

Uploading Image to Server – Android Eclipse Version.

By | February 18, 2016

Hi all, In today’s tutorial I will show you how to send an image to server using POST method in ANDROID. If you are working in Android studio, then checkout the article here. Uploading an image to server is a basic requirement in many of our application. Sending data to server which is using a PHP Script is… Read More »

How to load a spinner with values from SQlite Database in android?

By | November 18, 2012

Here is a simple example showing how to load a database values in a spinner in android. OK we will start. This is the layout for the spinner row. spinner_row.xml [xml] <?xml version="1.0" encoding="utf-8"?> <TextView xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation = "vertical" android:id="@+id/tv" android:layout_margin="10dp"> </TextView> [/xml] This is the layout for the interface. activity_main.xml [xml] <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"… Read More »

How to use NumberFormat Class in Android? – Rounding a number in android, formatting, getting decimal values etc in android.

By | October 14, 2012

[java] package com.coderzheaven.numberformattest; import java.text.DecimalFormat; import java.text.NumberFormat; import java.util.Locale; import android.app.Activity; import android.os.Bundle; import android. widget. TextView; public class MainActivity extends Activity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); TextView tv = new TextView(this); tv.setPadding(10, 10, 10, 10); NumberFormat numberFormat = new DecimalFormat("##"); String str = numberFormat.format(-01234.567); // -1235 tv.setText(str + "\n\n"); str = numberFormat.format(00); // 0… Read More »

How to get table values from a MySQL database and show it in Android as Tables.?

By | September 25, 2012

Here we are accessing a mysql database and get the table values and show it in the Android side as tables. These are some tutorials that I have posted on connection with php and getting tablevalues. 1. Android phpmySQL connection redone. 2. Simplest Lazy Loading ListView Example in Android with data populated from a MySQL database using php.… Read More »

Simplest Lazy Loading ListView Example in Android with data populated from a MySQL database using php.

By | September 23, 2012

Hello all… You may have seen many implementations of Lazy Loading ListView. Today I will show you my method to create Lazy Loading ListViews. I dont know whether it can be any more simple than this. In this I am using AsyncTask to download each image. So we will start. Here we have 6 classes. 1. MainPage –… Read More »

How to create a Slide from Left animation while deleting a row from a ListView in Android?

By | September 12, 2012

Hello all…… I have written a lost of posts on Listviews. You can see that by just searching Listviews in my site. Today I will show you how to create a slide out animation while we delete a row from a ListView. So this is the xml that contains the ListView. Let it be in the main.xml main.xml… Read More »

How to show two different DatepickerDialogs on same activity with only one listener function in android?

By | September 1, 2012

In android for each time picker Dialog we can associate with a dialog. So with this dialog and a global variable we can have any number of Dialog listeners. Here is the sample java code. This is the layout file – main.xml [xml] <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" > <Button android:id="@+id/btnChangeDate" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Change Date"… Read More »

How to add a new contact programmatically in android?

By | June 18, 2012

We all know how to add a new contact to our android devices without programming right. OK that’s a normal man’s use. But what from a programmer’s view. This is the sample java code that helps you to add contact programatically. [java] package com.coderzheaven.pack; import java.util.ArrayList; import android.app.Activity; import android.content.ContentProviderOperation; import android.content.ContentValues; import android.net.Uri; import android.os.Bundle; import android.provider.ContactsContract;… Read More »

Date and TimePicker in ANDROID.

By | April 12, 2012

The following code simply allows you to select a date and time using the datepicker and timepicker in ANDROID. [java] package AndroidDatePicker.pack; import java.util.Calendar; import android.app.Activity; import android.app.DatePickerDialog; import android.app.Dialog; import android.app.TimePickerDialog; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.DatePicker; import android.widget.TimePicker; import android.widget.Toast; public class AndroidDatePicker extends Activity { private int myYear, myMonth, myDay, myHour, myMinute; static… Read More »

Uploading audio, video or image files from Android to server

By | March 29, 2012

Hello everyone, Check out the popular posts from Coderzheaven.com Uploading and Downloading of files – Popular and Useful posts from CoderzHeaven In one of the previous posts I have shown one method to upload an image in android. Here is another method to upload a media file like images,audio or video in android. Here is the main java… Read More »

How to use Calendar in Android?

By | March 5, 2012

Hello all……. In today’s post I will show you how to use Calendar in android. Actually it is really easy to use calendar in android. For that android provides a calendar widget. We use calendar class to show the Calendar widget. Here is the java source code for this example. [java] package com.coderzheaven.pack; import java.util.Calendar; import android.app.Activity; import… Read More »

How to Sort a String array in Android.

By | February 25, 2012

Hello all…. This is a simple example showing how to sort a string array which is a arraylist in android. we sort the array using the “Collections” class in android. Here is a simple example [java] package com.coderzheaven.pack; import java.util.ArrayList; import java.util.Arrays; import java.util.Collections; import java.util.Comparator; import android.app.Activity; import android.os.Bundle; public class SortingStringsDemo extends Activity { @Override public… Read More »

How to save data or score in Android Cocos2D?

By | January 21, 2012

Hello Friends Today I will show you how to save data in cocos2D android in a database and reload it when the game starts. This has been always a problem withe game developers for cocos2D android. I will show you a way to save almost any number of data in a database using SQlite in android. Check these… Read More »

Parsing an XML from Online in Android

By | December 25, 2011

In the previous example I showed how to parse an xml that is stored in a file in res/xml folder. In this post I will show you how to parse an xml that is stored in a server in an xml file. Here I am using an xml that is stored in here Here is the java code… Read More »

How to create a custom ListView in android?

By | October 13, 2011

Hello all….. In today’s tutorial I will show you how to create a custom listview in android. For that we need 3java files. One holding the ListView itself another a Model object that holds the data for the listview and the third one for the Adapter which extends the ArrayAdapter class for holding the model. First the Model.java… Read More »

How to Upload Multiple files in one request along with other string parameters in android?

By | August 16, 2011

Hello everyone, I have shown two methods to upload files in android. In today’s tutorial I will show another simple method to upload files. With this method you can upload multiple files in one request + you can send your own string parameters with them. Here is another method on working with uploading of images. How to upload… Read More »

Android phpmySQL connection redone.

By | July 27, 2011

Hi all.. Most of our visitors had problem with one of our previous post on Android-php connection. So here I am posting another simple example to connect with a php file. Here I am simply putting an echo in the php file which ehoes back the data from the android side. Here are the things you need to… Read More »

Listening incoming sms message in Android

By | May 1, 2011

When a new sms message is received by the device, a Broadcast Receiver is registered. For this IntentFilter filter = new IntentFilter(SMS_RECEIVED); registerReceiver(receiver_SMS, filter); should be included . Also sms are sent in PDU’s(Protocol Description Units) format, which act as an encapsulation. Inorder to extract from PDU to byte array messages[i] = SmsMessage.createFromPdu((byte[]) pdus[i]); method is used. When… Read More »

Email validation in ANDROID.

By | May 1, 2011

This is a simple example showing email validation in ANDROID. This example uses regex for email validation. Create a button and an edittext in your main.xml file and try this code. [java] package com.coderzheaven; import java.util.regex.Pattern; import android.app.Activity; import android.os.Bundle; import android.view.View; import android.view.Window; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.EditText; import android.widget.TextView; import android.widget.Toast; public class EmailValidationDemo extends… Read More »

ANDROID – Upload an image to Server in Android Studio

By | April 25, 2011

Hi all, In today’s tutorial I will show you how to send an image to server using POST method in ANDROID. Uploading an image to server is a basic requirement in many of our application. Sending data to server which is using a PHP Script is already explained in this example . Now in this example I will… Read More »

Expandable ListView in ANDROID using SimpleExpandableListAdapter, a simple example.

By | April 10, 2011

Hi all…… Here is a simple example of expandandable ListView in ANDROID. But I am not going to explain any code, because everything is explained inside the java file. Make sure to read it. [java] package pack.Coderzheaven; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import android.app.ExpandableListActivity; import android.os.Bundle; import android.view.View; import android.widget.ExpandableListView; import android.widget.SimpleExpandableListAdapter; public class ExpandableListDemo extends ExpandableListActivity… Read More »

Text to speech in ANDROID, A Simple Example.

By | April 9, 2011

Hello everyone…….. In this simple example I will show you how to use Text To Speech in ANDROID. This is one of the unique features in ANDROID. Unlike iPhone , ANDROID has a built in TTS Library which supports many languages. But iPhone doesn’t have this feature. They have to depend on third-party software for implementing this. Now… Read More »

Make your own gesture application in ANDROID or How to use gestures in ANDROID?

By | April 5, 2011

Hi all…. In this tutorial I will teach you how to make use of Gestures in ANDROID and make your own application. Follow the below steps exactly to get an idea of how to use gestures. 1. Make a gesture Library. 2. Add your own gestures into it. 3. Export it to your applications and use it. It… Read More »

How to get information about all the applications installed in your ANDROID Emulator or Phone? / How to use getPackageManager() in ANDROID ?

By | April 3, 2011

Hi all, In this tutorial I will show you how to get the information about all the applications installed in your ANDROID phone. What you have to do is create a ANDROID project inside the package pack.GetAllInstalledApplications amd name the java file “GetAllInstalledApplicationsExample.java” and copy the following code into it. Here the “getPackageManager().getInstalledPackages(0);” gets information about all the… Read More »