Easy Create Android Application

Android is currently being developed rapidly. Even in mid-2010, has occupied the second position as a smartphone operating system. Penigkatan use this operating system on existing mobile devices will create opportunities for progamer. With the Android Market that used to sell applications, progamer can make a profit by creating applications that are appropriate for the community.
According to news sources from Gartner (IT research and advisory firm) which was released on 7 April 2011 said that "smartphone sales worldwide will reach 468 million units in 2011. At the end of this year, also predicted Mobile OS Android will become the most popular". Krena that's a lot of programmers who create applications via Android because it is open source and free. To make it not too difficult, there are only a few steps that need attention.

 Preparation 

Before you can create your own applications,
there are several tools that must be on the computer. One is Java 6 (or Java 1.6). if the computer has not been installed, then you can download it at http://bit.ly/l93cHK/ with 16MB file size. When you have downloaded and installed, then follow these steps:

1. Go to the official Java page. If after opening the page up a dialog "An old version of Java has been detected on your system" means Java are you using is not the latest version. You can download the latest version or use an older version of Java you are using. Next, click on the link "test the currently installed version of Java" is located below.
2. After the test run, when the dialog is displayed that says "Your Java is working" means Java is already installed on your computer. But if the dialogue does not appear above, then you must install the latest version of Java.
3. The next test is to open AppInventor page and click Launch.
4. In the download window that appears, click Open and wait until the program is open. It looks almost the same as Notepad.
5. If you fail the test, there may be several reasons:

              a. Your computer is behind the Firewall

              b. Your browser is not configured to run Java

              c. Your computer memory shortage

              d. Network proxies for Java needs to be changed

 

Making Project 

If at this stage of Java installation went smooth, now we continue to progress the project. The app then we are doing is a simple application to display the sound. So later in the application aka tone buttons which when pressed will produce certain sounds.

1. Open page was AppInventor Googlelabs Login using your Google account.
2. My Projects Click on the link and then click New.
3. Give the name of the project.
4. The default view will appear (Viewer), this is the initial view for the application you guys later. To change the background, icon, and title screen orientation can be changed in the Properties.
5. Move to the Palette. Now we will create buttons for sound effects. On the Screen Arrangement, click and drag TableArrangement into the Viewer.
6. In the Properties, to TableArrangement1 Rate 3 for Column and Row.
7. Because this application is the sound effects, surely we need components. In the Palette, click and drag the player into the Viewer. Player's will be registered as a Non-Visible components.
8. Now we will insert the object of his voice, only the files were MP3 and WAV format whose size is 3MB down that can be used. In Components, select the Source Player1 then click Add and enter the MP3 or WAV files as desired. And repeat this step until all desired MP3 or WAV files already entered into the App Inventor.
9. In the Palette, we will create a button for each sound. Click and drag a Button into the box TableArrangements1 in the Viewer.
10. On the Properties of each button, change the text according to the name of the sound effect.
11. Making its interface is complete. Now we will complete the job application process. Click the Open the Blocks Editor.
12. Download window appears again, select Open. If a warning dialog will appear, choose Run.
13. The new window will appear called Inventor for Android App Blocks Editor. Select the My Blocks tab, select the Button1 and then drag a box named Button1.Click to the window to the right. Do the same for all the existing button.
14. Still on My Blocks tab, select Player1 and drag to set Player1.Source Button1.Click into the box. Do the same thing to Button2.Click until all the existing button.
15. Move to the Built-ins tab, select Text and drag to the Text of the most up to Player1.Source box.
16. Click on Text in Text box dang anti with the file name associated with its button. As my example, is named Button1 "APPLAUSE" and the name of an audio file that is used called "applause.mp3". do the same for all button.
17. After all the noise associated with the corresponding key, we will arrange for this application plays a sound corresponding to the button is pressed. The trick, select the My Blocks, select Player1 and drag the box into the box Button1.Click Player1.Start. Do the same for all button.
18. Now you can create a simple application that is ready to run.