Blackberry Messenger Bedienungsanleitung PDF herunterladen (Seite 4)

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 This function is used to reset the board, and initialize all variables. The first thing that

will need to be added to this function is to initialize the variables we just created. Add the

following lines to the top of the function in the JavaScript file.

//Reset the number of tries counter

triesCounter = 0;

//Reset the win,lose,tie counters

userWins = 0;

userLoses = 0;

userTies = 0;

 When the user exits the application, we want their BBM profile to be updated with their

statistics from the last games that they played. In order to do this, we must change the

callback function for the BlackBerry system event onHardwareKey. The callback

function currently looks like the following:

blackberry.system.event.onHardwareKey(blackberry.system.event.KEY

_BACK, function ()

{

blackberry.app.exit(); //Exit the application

});

 What we want to do instead is update the BBM profile item for this application to show

how many times the user won, lost and tied in the game. Add the following code to the

callback function:

try

{

//Update stats on profile here

var itemText = "Gave up on playing Tic Tac Toe with

"+userWins+" wins, "+userTies+" ties and "+userLoses+ "

loses! ";

var itemIcon = "local:///exclaim.jpg";

var itemOptions = { text: itemText, icon: itemIcon };

blackberry.bbm.platform.self.profilebox.addItem

(itemOptions);

}

catch (e)

{

alert(e);

}

blackberry.app.exit(); //Exit the application

 From the code, you can see that we create a variable which holds the message we want to

put inside the profile box. We also include an icon which will go beside the text, and

finally we create a JSON variable called itemOptions which holds both the text and the

location of the icon. Afterwards, we call the addItem function of the Profile Box package

in the BBM SDK to add the text and icon to the package.

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