Chang,
I've been playing with this in it seems that window.requestAnimationFrame
is causing change detections. I base this assumption in this
comment https://github.com/angular/angular/pull/3876#issuecomment-135894296,
also I did a little test to see if I'm right or not
I added the following code
afterViewChecked() {
console.log('I\'m being checked!');
}
tick () {
var c = ++this.count;
this.top = Math.sin(c / 10) * 10;
this.left = Math.cos(c / 10) * 10;
this.color = c % 255;
this.content = c % 100;
window.requestAnimationFrame(() => this.tick());
}
afterViewChecked is called everytime the view is being checked, and if you
see the console the log grows, and grows, and grows, and grows... I know
that a solution could be running it outside angular using
zone.runOutsideAngular(() => ...), I tried it and I failed.
I know this is not a solution, but I hope it gives you at least a clue of
how to solve it.
PS : Here's a plnkr with my little
test http://plnkr.co/edit/bhy6apYuPHAW5WoEFxey
Regards.
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