Author Archives: admin

How to move a body manually in Box2D? or Give a force to a body in Box2D, iPhone.

By | April 28, 2012

This is a sample code to move a body in Box2D . First you have to make a body with variable name “moving_rec” and call the below function in a schedular at regular intervals. -(void) moveBody{ b2Vec2 force = b2Vec2(0,0); force = b2Vec2(0,3); //Giving the x an y to negative will move the body in… Read More »

Pause And Resume iPhone Game Using Cocos2D

By | April 26, 2012

More than usually we need to apply the functions of Pause and Resume/Play for our games. In Mac’s cocos2D programming it’s more than simple. Simply use the following code for Pause & Resume where ever you want! /*For Pausing the game*/ [[CCDirector sharedDirector] pause]; [self pauseSchedulerAndActions]; //Call for pausing all schedulers and actions /*For Resuming/Playing… Read More »

How to Refresh a HTML Page Using JavaScript ?

By | April 26, 2012

Hi, Most probably you may have encountered a situation where you have to refresh the web page in your code. Here is, how it could be done using JavaScript. Sample Refresh Here on button click it will call the function ‘refresh_yourPage()’, and it will refresh the page! 🙂

How to read and write a text file that is stored in your application sandbox in ANDROID?

By | April 22, 2012

Hi all….. In this post I will show you how to read a text file in ANDOID. Let your file is in the your application sandbox of your ANDOID project, i.e the file’s location is /data/data/your_package_name folder. To view this folder -> open File Explorer and expand each folder. For this example to work first… Read More »

Java Applet MouseEvents

By | April 22, 2012

A simple event based applet applications is described below First importing the necessary header files // Demonstrate the mouse event handlers. import java.awt.*; import java.awt.event.*; import java.applet.*; /* <applet code=”MouseEvents” width=300 height=100> </applet> */ Next step is to create a class which implements the “MouseListener” and “MouseMotionListener “ public class MouseEvents extends Applet implements MouseListener, MouseMotionListener {… Read More »

Select an Image from gallery in ANDROID and show it in an ImageView.

By | April 20, 2012

Hi all In this tutorial I will show you how to get an image from your phone gallery and show it in an imageview. Here we use intents to open up the image gallery and get the image URI. Set the image type as “image” to get only the images. on onActivityResult if the result… Read More »

JComboBox in Java swing

By | April 20, 2012

This shows you how to add JcomboBox to JPanel import java.awt.*; import java.awt.event.*; import java.text.DecimalFormat; import javax.imageio.ImageIO; import javax.swing.*; public class Example implements WindowListener { JFrame content_frame = new JFrame(); JPanel panel = new JPanel(); JComboBox Combonote; public Example() { content_frame.setTitle(“Contents”); content_frame.addWindowListener(this); content_frame.setSize(300, 300); content_frame.setVisible(true); content_frame.setLocationRelativeTo(null); content_frame.setResizable(false); ///cannot maximize content_frame.setVisible(true); showComboBox(); } private void showComboBox()… Read More »

How to get Device Orientation in Cocos2D, iPhone in Objective C?

By | April 17, 2012

Hello all…… We may need to know that what is your current device orientation. Using the below code you can do this. Note: If you have to explicitly set the orientation of your phone to any of the above you can set this in the appDelegate.m file. You can put an “||” (OR) symbol in… 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. http://www.coderzheaven.com/2012/02/03/changing-the-style-or-theme-of-default-alertdialog-in-android/ Another one… Read More »

How to animate a series of images in iphone? A simple Example.

By | April 12, 2012

The following code shows animation of 5 images. -(void)viewDidLoad { NSArray *images = [NSArray arrayWithObjects: [UIImage imageNamed:@”pic1.jpeg”], [UIImage imageNamed:@”pic2.jpeg”], [UIImage imageNamed:@”pic3.jpg”], [UIImage imageNamed:@”pic4.jpeg”], [UIImage imageNamed:@”pic5.jpeg”], nil]; CGRect frame = CGRectMake(0,0,320,460); UIImageView *imageView = [[UIImageView alloc] initWithFrame:frame]; imageView.animationImages = images; imageView.contentMode = UIViewContentModeScaleAspectFit; imageView.animationDuration = 3; imageView.animationRepeatCount = 0; [imageView startAnimating]; [self.view addSubview:imageView]; [imageView release]; [super… Read More »

How to add sprite to a body in Box2D in Adobe AIR, FLEX and FLASH? Or Add image/Sprite to a body in ActionScript.

By | April 12, 2012

The below code is for FlashBuilder 4, If you are using FlexBuilder3 use addChild() instead of the commented block in the following code.

Simulate a Balloon in Box2D, iPhone or ANDROID

By | April 12, 2012

Hello……… Sometimes you may want your body to act against the gravity of the world. One method to do this is described below. First what you have to do is to make a body in the shape of a circle and give it the image of a balloon as the userdata. Then in the tick… Read More »

Date and TimePicker in ANDROID.

By | April 12, 2012

The following code simply allows you to select a date and time using the datepicker and timepicker in ANDROID.

Saving Key-Value pair in Windows Phone using IsolatedStorageSettings

By | April 12, 2012

This sample code helps you to save a key and a corresponding value in windows Phone inside your application sandbox with the help of isolatedStorageSettings. PLease check this post before working around this post. How to save a text file in Windows Phone 7 or How to use isolated storage settings in Windows Phone 7?… Read More »

Sprite Animations Without Sprite Sheets

By | April 7, 2012

You can simulate any animations if you have a sequence of images which makes the illusion of that animations and rendering those images to the screen. In cocos2D it can be done in two ways, with sprite sheet animation and without sprite sheets. Here we are going to see how it can be done with… Read More »

How to use CCProgressTimer in Cocos2D to show progress?

By | April 7, 2012

The progress timer takes a sprite and, based on a percentage, displays only a part of it to visualize some kind of progress in your game. You can choose between radial, vertical, and horizontal progress timers. But the timer doesn’t update itself. You have to change the timer’s percentage value frequently to update the progress.

Switch Images in ANDROID.

By | April 7, 2012

Hi all …….. Ofter we have trouble with loading continous images in ANDROID from our application directory. The reason is that all resources have a unique resource ID which we need to get to load these resources. The following example shows how to get these unique identifier from the “path” of the resource. For example… Read More »

How to drag and drop a file from outside to your flex or AIR application and render it correctly?

By | April 7, 2012

Actually we have to do this by registering your application with the eventlisteners for NATIVE_DRAG_ENTER and NATIVE_DRAG_DROP. The following code shows how to do this. Just copy and paste the code to your MXML file and see the result. Drag and drop an image file from outside to your AIR application. import mx.controls.Alert; import mx.controls.Image;… Read More »