Tag Archives: layout

Event Handling using DataBinding in Android.

By | February 3, 2017

Using data binding, you can also handle events right from the layout xml using either Method references, or Listener bindings. For this we can create a seperate Class named “MyHandler”. Event Handler Class MyHandler.java Like my previous examples you have to initialize the listener in the Activity. Layout Now the layout that has a button with the click… Read More »

Data Binding in Android – Using ObservableField to Update UI automatically

By | January 25, 2017

As I shown in the previous post where we used BaseObservable to update UI when binding object is changed, this post will show you another simple way to achieve this. Do Check my previous posts for better understanding of DataBinding and methods used in DataBinding. https://www.coderzheaven.com/2017/01/15/simple-databinding-in-android-example/ https://www.coderzheaven.com/2017/01/20/data-binding-in-android-using-observables/ Here is another way to do it. In this method we… Read More »

Simple DataBinding in Android Example.

By | January 15, 2017

This is a latest technique in Android where the UI is updated when the data bind to it changes, which is called databinding. DataBinding DataBinding has its own expression language for layout files. It corresponds to Java expressions and has quite impressive capabilities. Below you can see the list of all available operators: mathematical operators; string concatenation; logical… Read More »

Using Tabbars in ANDROID, A Simple Example……….

By | April 22, 2012

This is a simple example showing how to use tabbars in ANDROID. First create a new project and copy this code to it. Now create three another java files by right clicking the src folder and name it FirstTab.java, SecondTab.java, ThirdTab.java. Now copy the following code to FirstTab.java. SecondTab.java Now ThirdTab.java. Main.xml file AndroidManifest.xml You can place anything… Read More »

How to inherit from other styles or how to extend your own styles in android?

By | April 17, 2012

Hello all…. I have covered many tutorials on styles on how to implement and use them. Today I will show you how to inherit from other styles or how to extend a style already created by you and use it for applying to other views. Here is one of my previous posts. https://www.coderzheaven.com/2012/02/03/changing-the-style-or-theme-of-default-alertdialog-in-android/ Another one is here.. https://www.coderzheaven.com/2011/06/19/styling-text-in-android-through-xml/… Read More »

Saving TextFile to SDCARD in android?

By | January 29, 2012

Hello android lovers, In today’s tutorial I will show you how to 1. Create a text file and save a textfile in your SDCARD in your preferred path. 2. Read the contents from the same file and show it in a TextView. For writing a file we use the FileWriter class and for reading the textfile we use… Read More »

Applet FlowLayout Example

By | May 16, 2011

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

How to send email from and ANDROID Application programatically?

By | May 16, 2011

Hello all…….. In today’s post I will show you send mail from an android application progrmatically.. Let’s go to the code fast…… This is the code in the mail java file…. Now the layout file (main.xml) The AndroidManifest.xml Note: However if you test this in your emulator, it will not work. Install it in your device to test… Read More »

ANDROID Tabbars Example……..

By | May 9, 2011

This is a simple example showing how to use tabbars in ANDROID. First create a new project and copy this code to it. Now create three another java files by right clicking the src folder and name it FirstTab.java, SecondTab.java, ThirdTab.java. Now copy the following code to FirstTab.java. SecondTab.java Now ThirdTab.java. Main.xml file AndroidManifest.xml You can place anything… Read More »

Using Tabbars in ANDROID, A Simple illustration……….

By | May 9, 2011

This is a simple example showing how to use tabbars in ANDROID. First create a new project and copy this code to it. Now create three another java files by right clicking the src folder and name it FirstTab.java, SecondTab.java, ThirdTab.java. Now copy the following code to FirstTab.java. SecondTab.java Now ThirdTab.java. Main.xml file AndroidManifest.xml You can place anything… Read More »

Using Tabbars in ANDROID, A Simple Example……….

By | May 9, 2011

This is a simple example showing how to use tabbars in ANDROID. First create a new project and copy this code to it. Now create three another java files by right clicking the src folder and name it FirstTab.java, SecondTab.java, ThirdTab.java. Now copy the following code to FirstTab.java. SecondTab.java Now ThirdTab.java. Main.xml file AndroidManifest.xml You can place anything… 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 »

Customizing your button or TextView or another view in ANDROID.

By | April 30, 2011

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 changing colors on… Read More »

How to create and delete a directory in SdCard in ANDROID?

By | April 27, 2011

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 Now go to… Read More »

Android frame Animation

By | April 23, 2011

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

By | April 21, 2011

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

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 »