Shows a simple popup message on the screen.
It automatically disappears after about 5 secods or after an even shorter time if you pass the “Short” option, or when the user touches the screen.
Example - Top
function OnStart()
{
app.ShowPopup( "Hello World!" );
}
Example - Bottom
function OnStart()
{
app.ShowPopup( "Hello World!", "Bottom,Short" );
}