Hello all………. We have seen many posts about ListViews like creating a listview, adding data to it, customizing a listview etc. Take a look at some of these examples 1. Single Selection ListView in android 2. Flitering a ListView using an input from an EditText in Android. 3. How to create a custom ListView in… Read More »
Hello all…. In a previous post I showed a method to share global variables across your android application. Those were done using a static class. Now today I will show you another way of sharing global variables across the application Check these posts for sharing data across the application. 1. http://coderzheaven.com/2011/05/global-variables-in-android/ 2. http://coderzheaven.com/2011/05/global-variables-in-android%e2%80%a6/ 3. http://coderzheaven.com/2011/03/passing-data-between-intents-in-android/… Read More »
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… Read More »
Hello all, In todays tutorial I will show you how to work with sqlite databases in android through command line. Advantages 1. You can browse any number of databases. 2. You can write any queries and execute. First go through these tutorials to get a glance of how to work with sqlite databases in android.… Read More »
Hello all….. In today’s post I will show you how to create a single selection list in android. Here is the main.xml Now this line in the java file creates the single choice. setListAdapter(new ArrayAdapter(this, android.R.layout.simple_list_item_single_choice, android.R.id.text1, names)); Now this is the full java code
Hello all… I have shown a lot of examples of animations in android. Today I will show you how to show an image transition animation between two images. For that you have to create an xml named “expand_collapse.xml” inside the res/drawable folder. The contents of “expand_collapse.xml” are Now in the main.xml place an imageView to… Read More »
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.… Read More »
Hello all.. This is a simple code snippet to enable WI-FI in android programatically in android. Note : Make sure to add the permissions in the manifest file. These are the permissions. Please leave your valuable comments on this post.
Hello all.. The OutofMemory exception is a common exception in android when you select an image from a gallery or load Big Images in android. There are different methods to solve this problem. Today I will show you one of the method to solve this problem. The method I am going to explain here is… Read More »
Hello everyone.. In one of my tutorials I have shown you how to upload an image in android.. In todays tutorial I will show you how to download an image into your phone programatically. I am just picking up an image url from google to show the download. Previously I have shown three other methods… Read More »
Hello all.. ScrollBars are our basic needs in a UI if we have to show a content that do not fit fully into our layout. A normal scrollBar doesn’t look so beautiful, but don’t worry ANDROID is so customizable that you can customize your scrollBar also. Here is a simple demo to make a custom… Read More »
Hello all….. In the previous post I have shown you how to parse a Simple JSON String in ANDROID. In today’s tutorial I will show you how to parse a complex JSON String. Take a look at the example Here the JSON String used is Now let’s dothe operation……….. Please check the Logcat for the… Read More »
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… 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 »
Hello all….. I have already covered this in another tutorial (click here for that post), but there I didn’t mention this method of simulating a call or SMS in android emulator. Let’s see how to do this… First start your emulator. Wait until it is Home. Then in Eclipse go to DDMS perspective. Look at… 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 »
Hello all…… By default telnet is not enabled in Windows Vista and Windows 7. So you need to turn own the option for telnet . For this 1. Open control Panel 2. Programs and features 3. Turn Windows feature On or OFF 4. Check Telnet Client. Now open command prompt and run telnet
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 »