当前没有用于动画模糊的特定修改器。话虽如此.. 任何时候你想要一个自定义动画,你都可以使用 TweenTransition 或 Transitionable。这些类允许您创建具有指定过渡的两个值之间的曲线。一旦定义好,您可以使用 .get() 获取值并将它们应用于您希望的任何属性。
这是一个工作示例..
var Engine = require('famous/core/Engine');
var Surface = require('famous/core/Surface');
var StateModifier = require('famous/modifiers/StateModifier');
var Transitionable = require('famous/transitions/Transitionable');
var SnapTransition = require('famous/transitions/SnapTransition');
Transitionable.registerMethod('snap', SnapTransition);
var snap = { method :'snap', period: 400, dampingRatio: 0.7 };
var context = Engine.createContext();
var surface = new Surface({
size: [200,200],
properties: {
backgroundColor: 'red'
}
});
var transitionable;
var final_pos;
var blurred = false;
var blur_from_to = function(i,f,transition){
var initial_pos = i;
final_pos = f;
transitionable = new Transitionable(initial_pos);
transitionable.set(final_pos, transition);
Engine.on('prerender', prerender);
}
var prerender = function(){
current_pos = transitionable.get();
var blur_string = 'blur('+ current_pos + 'px)';
surface.setProperties({ webkitFilter:blur_string});
if (current_pos == final_pos) {
Engine.removeListener('prerender',prerender);
};
}
surface.on("click", function(){
blurred ? blur_from_to(10,0,snap) : blur_from_to(0,10,snap) ;
blurred = !blurred;
} );
context.add(new StateModifier({origin:[0.5,0.5]})).add(surface);
祝你好运!