Definining KineticJS Stage I go like this:
var stage = new Kinetic.Stage({
container: 'container',
width: 320,
height: 480
});
So width and height of stage are fixed size.
How to stretch it to fit on phone screen if resolution is different?
Well, this is really a javascript question. You want to make the size of the stage same as the window size. This worked for me on my android project:
var stage = new Kinetic.Stage({
container: 'container',
width: window.innerWidth,
height: window.innerHeight
});
Edit:
Additionally, I recommend you add jQuery as well so you can check for orientation changes, then you can do something like:
window.onresize = function(event) { //this function will resize your stage to the size of your window
stage.setWidth(window.innerWidth);
stage.setHeight(window.innerHeight);
stage.draw(); //redraw the stage, not sure if really needed, but good to have.
}
or you could do:
window.onresize = function(event) {
stage.setScale(x,y); //set x, y scale values when the orientation changes
stage.draw(); //redraw the stage, not sure if really needed, but good to have.
}