angular 2/4 把經常使用動畫效果封裝成基本動畫庫

angular動畫基本動畫封裝庫

angular動畫很強大,但在組件中寫一大堆比較礙眼,本例對經常使用的動畫效果進行獨立封裝,方便調用,保持基本動畫效果的一致性.減小寫動畫代碼的痛苦.

本例定義了淡入/淡出/展開/收縮/飛入/飛出/放大/縮小效果,保存爲獨立ts文件導入組件便可使用.

使用方法

組件中

import { fadeIn, fadeOut, stretch, shrink, flyIn, flyOut, zoomIn, zoomOut } from './sim-anim.ts';

@Component({
// ...
  animations: [fadeIn, fadeOut, shrink, stretch, flyIn, flyOut, zoomIn, zoomOut]
})

模板中

<div @flyIn @flyOut>...</div>

或

import { simAnim } from './sim-anim.ts';
@Component({
// ...
  animations: [simAnim]
})

模板中

<div [@]simAnim="'flyIn'">...</div>

源

//sim-anim.ts

import { BrowserAnimationsModule } from '@angular/platform-browser/animations';
import { trigger, state, style, transition, animate, keyframes } from '@angular/animations';

// 動畫時間線
var time = '300ms'
var styles = {
  ease: time + ' ease ',
  linear: time + ' linear ',
  easeIn: time + ' ease-in',
  easeOut: time + ' ease-out',
  stepStart: time + ' step-start',
  stepEnd: time + ' step-end',
  easeInOut: time + ' ease-in-out',
  faseOutSlowIn: time + ' cubic-bezier(0.4, 0, 0.2, 1)',
  inOutBack: time + ' cubic-bezier(0.68, -0.55, 0.27, 1.55)',
  inOutCubic: time + ' cubic-bezier(0.65, 0.05, 0.36, 1)',
  inOutQuadratic: time + ' cubic-bezier(0.46, 0.03, 0.52, 0.96)',
  inOutSine: time + ' cubic-bezier(0.45, 0.05, 0.55, 0.95)'
}

// 動畫配置

var opts = {
  fadeIn: [
    style({ opacity: 0 }),
    animate(styles.inOutBack, style({ opacity: 1 })),
  ],
  fadeOut: [
    style({ opacity: 1 }),
    animate(styles.inOutBack, style({ opacity: 0 }))
  ],
  shrink: [
    style({ height: '*' }),
    animate(styles.inOutBack, style({ height: 0 }))
  ],
  stretch: [
    style({ height: '0' }),
    animate(styles.inOutBack, style({ height: '*' }))
  ],
  flyIn: [
    style({ transform: 'translateX(-100%)' }),
    animate(styles.inOutBack, style({ transform: '*' }))
  ],
  flyOut: [
    style({ transform: '*' }),
    animate(styles.inOutBack, style({ transform: 'translateX(-100%)' }))
  ],
  zoomIn: [
    style({ transform: 'scale(.5)' }),
    animate(styles.inOutBack, style({ transform: '*' }))
  ],
  zoomOut: [
    style({ transform: '*' }),
    animate(styles.inOutBack, style({ transform: 'scale(.5)' }))
  ]
}

// 導出動畫時間線定義,供自定義動畫的時候使用
export const animStyle = styles

// 導出動畫
export const fadeIn = [trigger('fadeIn', [transition('void => *', opts.fadeIn)])]
export const fadeOut = [trigger('fadeOut', [transition('* => void', opts.fadeOut)])]
export const stretch = [trigger('stretch', [transition('void => *', opts.stretch)])]
export const shrink = [trigger('shrink', [transition('* => void', opts.shrink)])]
export const flyIn = [trigger('flyIn', [transition('void => *', opts.flyIn)])]
export const flyOut = [trigger('flyOut', [transition('* => void', opts.flyOut)])]
export const zoomIn = [trigger('zoomIn', [transition('void => *', opts.zoomIn)])]
export const zoomOut = [trigger('zoomOut', [transition('* => void', opts.zoomOut)])]

export const simAnim = [
  trigger('simAnim', [
    transition('* => fadeIn', opts.fadeIn),
    transition('* => fadeIn', opts.fadeOut),
    transition('* => shrink', opts.shrink),
    transition('* => stretch', opts.stretch),
    transition('* => flyIn', opts.flyIn),
    transition('* => flyOut', opts.flyOut),
    transition('* => zoomIn', opts.zoomIn),
    transition('* => zoomOut', opts.zoomOut)
  ])
]