function OnStart()

{

//Create a layout with objects vertically centered.

lay = app.CreateLayout( "linear", "VCenter,FillXY" );



//Create image 1/5 of screen width and correct aspect ratio.

img = app.CreateImage( "Img/Hello World.png", 0.2, -1 );

lay.AddChild( img );



//Create a button 1/3 of screen width and 1/10 screen height.

btn = app.CreateButton( "Press Me", 0.3, 0.1 );

btn.SetMargins( 0, 0.05, 0, 0 );

lay.AddChild( btn );



//Set function to call when button pressed.

 

btn.SetOnTouch( btn_OnTouch );



//Add layout to app.

app.AddLayout( lay );

}



//Called when user touches our button.

function btn_OnTouch()

{

//Show a popup message.

date = new Date();

app.ScreenShot( "sdcard/" + date + ".png");

app.ShowPopup( date);

}