Skip to main content

Android - Hello world application

  I assume you have configured your eclipse or STS for android application development. If you not configured then follow up my previous tutorial.
   1. For creating new android project open your eclipse or STS and go to File - New then choose Others. Select Android Project option and click Next.

 
   2. Choose your android target version. It's based on your requirement, here I have choose my android version as 2.1. and click Next.


   3. Specify your Java package name, Choose your minimum SDK version as 7 and click Finish.


   4. The final folder structure will be looks like this. 


   5. For running this application you have to configure your "Android Virtual Driver Manager". This is one time process for entire application development. For configuring this one, Choose Window -- AVD Manager or Click AVD icons present in your eclipse or STS.
  

   6. Click New button, Choose your target as same you gave during project creation time and give some name. Give some 100 MB size as SD card size and click Create AVD buttons.

  7. Ok now you have successfully created a new android emulator for testing our application. For running application, Right click on project root folder, Choose "Run As" option and click "Run Configuration".

   8. Click Target option, and select your target then click "Run".

  9. Now you will get result like this.
    Now you get a confusion, I didn't write any code then how it displayed this message? 

   10.   Open your main.xml file present in layout folder and see the XML code. By default whenever you create android application the TextView component is created, this have the value as "Hello World" with application name. Just modify the android:text property value as @string/Hello World.



   11. Now run the application using emulator, you got the result like this.
  Yes, You have successfully created your first android application. For testing with real phone you have to install the .apk file present in bin folder into your android phone.


Labels:

Comments

Post a Comment

Popular posts from this blog

Getting key/value pair from JSON object and getting variable name and value from JavaScript object.

 Hi, I had faced one issue like this. I have an JSON object but I don't know any key name but I need to get the all the key and corresponding value from JSON object using client side JavaScript. Suddenly I wondered whether it's possible or not, after that I had done lot of workaround and finally got this solution. See the below example.    function getKeyValueFromJSON() {     var jsonObj =  {a:10,b:20,c:30,d:50} ;     for ( var key in jsonObj) {       alert( "Key: " + key + " value: " + jsonObj[key]);     }  }  In this example I have created the one json array as string, and converted this string into JSON object using eval() function. Using for-each loop I got all the key value from jsonObj, and finally using that key I got the corresponding value.  Finally I got the alert like this,    Key: a value:10    Key: b value:20    Key...
36 comments
Read more

Simple Login Application Using Spring MVC and Hibernate – Part 1

 I hope developers working in web application development might hear about MVC architecture. Almost all technologies provide support for MVC based web application development, but the success is based on many factors like reusable of the code, maintenance of the code, future adaption of the code, etc..,  The success of the Spring MVC is “ Open for extension and closed for modification ” principle. Using Spring MVC the developers can easily develop MVC based web application. We don’t need any steep learning curve at the same time we need to know the basics of spring framework and MVC architecture. The Spring MVC consists of following important components. 1. Dispatcher servlet 2. Controller 3. View Resolver 4. Model Spring MVC - Overview  The overall architecture of Spring MVC is shown here.  1. When “Dispatcher Servlet” gets any request from client, it finds the corresponding mapped controller for the request and just dispatches the request to the c...
53 comments
Read more

Simple Login Application Using Spring MVC and Hibernate – Part 2

 I hope you have visited my part1 of my tutorial . Let’s see the steps for integrating hibernate framework into Spring MVC. Here I have used MySQL database. I have created one database called “ springmvc ” and created one table called “ user ” with userid, username, password fields.  I have inserted some records into table like this. Step 1: Creating User POJO class.  We need to create a User POJO class for mapping user table. Ok let’s create it. Step 2: Creating hibernate mapping xml file for user class.  In hibernate we need to create hibernate mapping xml file for all domain class for mapping into corresponding database table. Instead of creating xml file you can use annotation for mapping domain class into database table. This is my mapping xml document created for mapping our user domain class into user database table. Step 3: Creating authenticate service class.  The method “verifyUserNameAndPassword” pres...
42 comments
Read more