Java check memory Allocation
How to take screenshot of application and store it in SDCARD?
How to listen to the softkeyboard done button in android?
Merge two layout xml in android
C++ program to add two complex nos.
The program contains a class complex with two member variables x and y and a string class with one member variable. Two objects are created for complex class and string class and accepted values through read () function and their values are added using the operator overloaded function and assigned to the third object for each class. Values… Read More »
C++ program append the two text files
Three file objects are created using the fstream class one for first, second for second file and third for the appended file. The first two files are opened in the input mode and third in the append mode. The first file is opened and checked for error condition if the file exist its contents are written to the… Read More »
C++ program to copy the contents of a text file to another
Two file objects are created using the fstream class for the two files, one for source file and another destination file. The first file is opened and its contents are copied to the second file using get ( ) and put ( ) function. Each time the source file is opened error checking is done to ensure that… Read More »
Applet FlowLayout Example
The FlowLayout class puts components in a row, sized at their preferred size. Creates a new flow layout manager with the indicated alignment and the indicated horizontal and vertical gaps. The hgap and vgap arguments specify the number of pixels to put between components. The output window look like this
Listening incoming sms message in Android
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 »
emulator: ERROR: the user data image is used by another emulator. aborting
Android: Conversion to Dalvik format failed: Unable to execute dex: null
This error often comes when your android project size is large. Try the following steps to remove the error 1. Clean the project Project > Clean 2. Increase the memory allocated in eclipse.ini Open the eclipse.ini file in the the Eclipse folder. Then edit -Xms128m to -Xmx512m or something higher Hope this help you
Android frame Animation
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 When i click… Read More »
Android dialog with ListView
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 then
Applying a shape to xml in android
By adding a custom shape we can make the layout more attractive. For this we have to create a xml file and specify this in the main layout xml file First make a xml inside the drawable folder. Then in the main file specify this shape like this. The “category” is the name of the xml specifying the… Read More »
Android phpMysql connection
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 to the database… Read More »
