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页面渲染优化 #13

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mishe opened this issue Nov 30, 2015 · 0 comments
Open

页面渲染优化 #13

mishe opened this issue Nov 30, 2015 · 0 comments

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@mishe
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mishe commented Nov 30, 2015

告知浏览器开启渲染优化

拥有3d transform属性
使用animation, transition实现opacity, transform的动画
使用CSS filters的元素
使用 will-change

优化页面渲染的措施

gif图即使被其他Layer盖住不可见，也可能导致paint，不需要时应将gif图的display属性设为none。
为引起大范围Paint的元素生成独立的Layer以减小Paint的范围
可以采用fastDom.JS 优化
动画开始滚动后通过event-pointer: none禁止鼠标行为，减少不必要的repaint。
避免在动画过程中触发垃圾回收

Layout小结

不但改变CSS可能导致Layout，读取位置大小相关得属性也会导致Layout
分离读写，减少Layout

Paint小结

简化绘制的复杂度
避免不必要的绘制
减少绘制区域
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@mishe