EzzyLearning.com (Tutorials, How TOs, Code Samples, Tips and Tricks)

Customizing Android ListView Items with Custom ArrayAdapter

Waqas Anwar — Tue, 16 Aug 2011 21:48:22 GMT

For real-world commercial mobile applications, the default look and feel of the Android ListView is not very attractive. It only renders a simple String in every ListView row using the internal TextView control. For most applications, you want to create an interface that is more graphically rich and visually pleasing to the user. Luckily, ListView is very powerful control and with the help of custom item layouts, it can be customized to suit your needs easily. In this tutorial, I will show you how you can create custom ListView items with icons, custom header layout and how you can use custom ArrayAdapter to glue everything together. I will also show you some performance improvement tips you can use to optimize the memory usage of your ListView control.

Overview of Android Linear Layout

Waqas Anwar — Sun, 14 Aug 2011 17:57:02 GMT

LinearLayout is one of the easiest and commonly used layouts available to Android developers to arrange different views on the device screen. LinearLayout arranges its child views in a single row (horizontally) or a single column (vertically). In this tutorial, I will show you how you can use LinearLayout and how the views can be arranged inside LinearLayout.

Handling Android ListView onItemClick Event

Waqas Anwar — Sun, 14 Aug 2011 14:24:28 GMT

Android ListView control is designed to display a list of items to the user and the most common action users perform with the ListView is the item selection by just tapping any particular item in the ListView. ListView allows developers to handle user tapping by attaching the OnItemClickListener and overriding the onItemClick event. In most cases, when user click any item in the ListView, a new android activity opens that shows the details related to the selected item. To implement such scenario the knowledge of Android Intents and activity to activity communication is required. I will show you that in my future tutorials. In this tutorial, I will demonstrate you how you can handle the click events in ListView.

Binding Android ListView with Custom Objects using ArrayAdapter

Waqas Anwar — Fri, 12 Aug 2011 18:16:01 GMT

In my previous tutorial Binding Android ListView with String Array using ArrayAdapter, I have shown you how you can bind the Android ListView control with an array of String objects. Although it was a very simple implementation, but it was useful for those who are just starting learning Android application development. As an Android developer, soon you will realize that showing simple Strings in the ListView is not what you exactly want in real-world Android Apps, and you will often find yourself dealing with collections of custom Java objects. In this tutorial, I have decided to show you how you can bind Android ListView with custom objects using ArrayAdapter.

Binding Android ListView with String Array using ArrayAdapter

Waqas Anwar — Wed, 10 Aug 2011 22:04:18 GMT

This is my first tutorial on Android, so I have decided to start with a simple example. Android ListView control is one of the most popular controls available to Android developers, and It can be used in many different forms and can be customized to suit almost every possible application requirement. In this tutorial, I will demonstrate you how you can bind a simple array of Strings with ListView. In my future tutorials, I will show you more advance scenarios and layouts that can be achieved using ListView.

Select Deselect GridView Rows using a Checkbox in JQuery

Waqas Anwar — Sat, 22 Jan 2011 14:53:42 GMT

Many websites require functionality for letting their site visitors to select and deselect all the rows in GridView using a single checkbox normally available in the header row. You may have seen the examples of such functionality in Yahoo Mail or Hotmail inbox where you can select all the emails by clicking the single Checkbox on top of the email's grid. In this tutorial, I will show you how you can provide this functionality in ASP.NET GridView control using few lines of JQuery code.

Creating Custom Configuration Sections in ASP.NET

Waqas Anwar — Sun, 16 Jan 2011 11:23:13 GMT

Almost all ASP.NET Web Applications require some sort of configuration settings to be stored in the web.config files. These settings can be application settings, database connection strings, user authentication settings, page specific settings and so on. ASP.NET also provides very powerful Configuration API to work with configuration settings defined in web.config files. The Configuration API not only allows us to read/write settings in configuration files with ease but also allow us to define our own custom configuration sections in web.config. These custom sections are very useful in large web applications where you have a lot of application settings to store in the configuration file. In this tutorial, I will show you how to create and use custom configuration sections in ASP.NET.

Accessing ASP.NET CheckBoxList Control at Client Side using JQuery

Waqas Anwar — Tue, 11 Jan 2011 22:59:20 GMT

JQuery is truly a fantastic technology introduced for web developers in last few years. If you have been using it in your ASP.NET projects for some time, you may have already been playing many cool tricks on your web pages by combining it with powerful ASP.NET server side controls. It’s fairly straight forward to use JQuery with controls such as buttons, textboxes etc.. However, some of the ASP.NET controls make life very difficult due to the HTML they render on the page. One such control is ASP.NET CheckBoxList control and in this tutorial I will show you how you can use JQuery to get the selected checkbox item's labels as well as their values.

Sorting ASP.NET GridView Control using JQuery Tablesorter Plugin

Waqas Anwar — Fri, 24 Dec 2010 22:21:12 GMT

Displaying records in a tabular format is very common functionality of modern websites. Almost all the websites you visit these days have data to display in a table or datagrid and most of them also required the functionality of sorting records based on any column. Last week I had a chance to work with one of a popular JQuery plugin called Tablesorter and I was so impressed that I decided to write a full tutorial on it. In this tutorial, I will show you how you can use JQuery Tablesorter plugin with ASP.NET GridView control to provide client side sorting functionality to your site visitors.

Display Photos in ASP.NET using Flickr.NET API

Waqas Anwar — Sun, 19 Dec 2010 13:15:18 GMT

One of the most common ingredients of any successful website is to display photos to the site visitors along with photos and their metadata search facility. There are number of photo sharing web sites and services providing the large number of photos for websites and blogs. The most popular and commonly used site is Flickr.com, which provides very flexible and powerful API to web developers and exposes almost all the data stored on the site to offer web developers limitless possibilities for creating mashups, widgets, etc. Due to the popularity of Flickr API, many client libraries are available for almost all programming languages such as .NET, Java or PHP. These libraries make development with Flickr API even easier by hiding lower level API details and also allows you to work with your favorite programming language and environment. In this tutorial, I will show you how you can use one such library Flickr.NET to search and display photos using C# and ASP.NET.