From Forum Nokia Wiki

ID		Creation date	August 1, 2009
Platform	S60 5th Edition	Tested on devices	Nokia 5800 XpressMusic
Category	Flash Lite	Subcategory	S60 Platform Services

Keywords (APIs, classes, methods, functions): Service.Sensor, Platform Services, Accelerometer

Overview

The following snippet demonstrates how to create a moving ball using the Motion Sensor (Accelerometer) provided by Platform API in S60 5th Edition devices.

Preconditions

Just create a new flash file (mobile) having resolution 360x640 and flash lite 3 in publish settings. Create 2 layers one having action scripts and one having a movie clip (which have to move) named "ball_mc" .

'Note:'The FPS in properties must be increased to 100 fps for smooth animation without any lagging. The uploaded new files have been changed to FPS

Source

Put this on the first frame of the action script :

_global.X = 0;  
_global.Y = 0;
import com.nokia.lib.Service;
var sensors = new Service("Service.Sensor", "ISensor");
 
fscommand2("DisableKeypadCompatibilityMode"); //It Disables the Virtual Keypad
 
fscommand2("FullScreen", true );
var inParam = {SearchCriterion:"AccelerometerAxis"}; // It Is Used For Searching XYZ axis data
 
var outParams = sensors.FindSensorChannel(inParam);
var channelInfo = outParams.ReturnValue;
var channelId = channelInfo[0].ChannelId;
var contextType = channelInfo[0].ContextType;
var quantity = channelInfo[0].Quantity;
var channelType = channelInfo[0].ChannelType;
var location = channelInfo[0].Location;
var vendorId = channelInfo[0].VendorId;
var dataItemSize = channelInfo[0].DataItemSize;
var channelDataTypeId = channelInfo[0].ChannelDataTypeId;
var channelInfo = {ChannelId:channelId, ContextType:contextType, Quantity:quantity, ChannelType:channelType, Location:location, VendorId:vendorId, DataItemSize:dataItemSize, ChannelDataTypeId:channelDataTypeId};
 
var inParams = {ListeningType:"ChannelData", ChannelInfoMap:channelInfo};
 
sensors.RegisterForNotification(inParams, callBack);
 
function callBack(transactionID:String, eventID:String, outParam:Object) {
	if (outParam.ErrorCode == 0) {
		var channelData = outParam.ReturnValue;
		_global.X = channelData.XAxisData; //Retrieved X Axis Data
		_global.Y = channelData.YAxisData; // Retrieved Y Axis Data
		_global.X = _global.X/4;
		_global.Y = _global.Y/4; // just divide the retrieved values with some constant to make motion sensor less sensitive.
	} else {
		var errorId = outParam.ErrorCode;
		 txt.text = "Error: "+errorId;
	}
};

and on the second frame , write this code :

fscommand2("FullScreen", true);
_global.speed = 5;
 
onEnterFrame = function():Void{;
//Calculate the respective constant acceleration.;
 
if(_global.X>0)acelX = -1;
else acelX = 1;
if(_global.Y<0)acelY = -1;
else acelY = 1;
 
posX = Math.abs(_global.X/4) * acelX * _global.speed;
posY = Math.abs(_global.Y/4) * acelY * _global.speed;
 
wallColl(_root.ball_mc._x, _root.ball_mc._y); //This Function Checks for Boundry Walls
 
moveBall(posX, posY); //This Function Moves the ball
};
function wallColl(posX:Number, posY:Number):Void {
// All the values like 15, 620 , 350 are arbitrary .For creating a game , u have to put 
// walls and to detect collision with wall u can use hitTest
if (posY<=15) {
	ball_mc._y = 15;
}
if (posY>=620) {
	ball_mc._y = 620;
}
if (posX<=15) {
	ball_mc._x = 15;
}
if (posX>=350) {
	ball_mc._x = 350;
}
}
 
function moveBall(posX:Number, posY:Number):Void {
	_root.ball_mc._x += posX;
	_root.ball_mc._y += posY;
}
stop();

Download

• Motion_Sensor_Ball_PS.swf
• Motion_Sensor_Ball_PS.fla

Further reading

• Flash Lite Developer Library

Author

• This page is authored by SajiSoft. If u find any mistake, please feel free to edit it .

• FPS edit By Siraj a.k.a Apacheking