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… Read More »
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. Check this link to find how you can send email from android programatically. Please leave your valuable comments……
Beautifying our applications is one of the main features of your application’s success. In ANDROID there are many possible ways to do this. For eg. We need to have different colors for our buttons, However we can give backgrounds for buttons and all. But we can do many by using our custom xml files, like… Read More »
Hi all…… This is a simple example to create and delete a directory in ANDROID. Here the directly is created in the SDCARD. So first create an SDCARD and start the emulator with the SDCARD. Let’s look at the program. Use can use this program to create or delete a file in ANDROID also. main.xml… Read More »
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… Read More »
A series of frames is drawn one after the other at regular intervals. For this create a xml which contains ImageView for showing the animation The main java file is Next the main part, an xml which holds each image and duration in which each image shows. The xml should be placed inside drawable folder… Read More »
For implementing a ListView, we first create a xml which contains a ListView named list.xml Next we create a Dialog Object and inflate the above xml and when the listItem is clicked then a Alert Dialog windows comes The java file is listed below The alert window look like this When the Item is selected… Read More »
Actually these are done using services in ANDROID. These are called BroadcastReceivers.Your class has to extend the BroadcastReceiver class to get these broadcast events. But note that these services need to have an interface. So you will not see any UI on the device. But don’t think your application is not running or not installed.… Read More »
This is a simple example that shows how many bytes are free in your SDCard. Inorder to run this example, you have to create an SDCard and start the emulator with the SDCard. Now create a fresh project and name it “FreeSpaceActivity.java” and copy the following code to it. The main.xml file AndroidManifest file Please… Read More »
When you are working on an Android application that stores data in a SQLite database.There arise many questions like where does this database file get stored on the filesystem ? How can we access the database? I will give solution to all these problems. I created the SQLite database from my previous post about Using… Read More »
Hello ANDROID Lovers…….. In today’s tutorial I will show you how to deal with SQLite Databases in ANDROID. You know that SQLite are Lightweight databases which is maintained only on the client side. They don’t need a server. The SQLite databases are simply a file wrapped around with some stuff which helps us deal with… Read More »
Hi, In most situations we have to use progress bar dialogs, Alert View Dialogs and Our own custom Dialogues in our applications. In most situations the built in dialogs may be enough but in certain other situations we have to build our own dialogs for better user experience. But still there is problem people don’t… Read More »
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. The main.xml file. The child_row.xml The group_row.xml The strings.xml (This file contains the string for the color that is used for… Read More »
First create a database named “mydatabase” in MySql. Then create a table “tbl_user” with three fields (id, username and password). The next step is to create a php page which will communicate between the MySql database and the android application. For this create a “Connections.php” page as shown below. It will set up a connection… Read More »
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… Read More »
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… Read More »
This is a really simple example illustrating gestures in ANDROID. You Know that everything you do with your hand inside the phone is a gesture like SingleTap, doubleTap etc. Here is a quick illustration of this. For this the activity must implement OnGestureListener. The GestureDetector detects the gestures. Let’s look at the example. The layout… Read More »
In many of our android applications we need images and other files to be inside your emulator, such as images in the gallery. But unlike iPhone we cannot simply drag and drop files inside the emulator., because iPhone’s is simply a simulator. It justs creates an envoronment for testing. But ANDROID mimics the real phone.… Read More »
This is a simple example of creating options Menu in ANDROID. This menu can be seen by clicking on the “Menu Button” in ANDROID. Check out this example. The main.xml for the above code is
What is context menu? Where it is used? How it is used? I will cover all these questions… Context Menu A context menu is conceptually similar to the menu displayed when the user performs a “right-click” on a PC. You should use a context menu to provide the user access to actions that pertain to… Read More »
Cropping an image in ANDROID programmatically has always been a problem for ANDROID developers. So Here I am putting a sample code to demonstrate this. For cropping an image in ANDROID we need a source bitmap which is our image itself, the other one is the target bitmap which we have to set the size… Read More »
ListView is like a tableView in iPhone or iOS . In this example i will show you how to add a String Array in to the ListView and also make the listView Scrollable. First the xml file . Here the line android:scrollbars=”vertical” will make the scrolling vertically Now the java file The screen will be… Read More »
GridViews are those in which you can arrange elements in a two dimensional grid. It is what you see in the gallery where images are arranged. Here images are arranged in a two dimensional grid. Copy the below code and save it as “MyGridView.java” Now create another file named “Images.java” and copy the below code… Read More »
Below is a straight forward example of how to deal with SQLite database in ANDROID. Go ahead and copy and paste the following code to your java file. The example has one database and performs functions like insert delete and listing of values in a textView. In the XML file set up a TableLayout with… Read More »
Simply copy and paste the following code to see how to use the RatingBar in ANDROID.