发布于 2018-11-10 20:55:06
断点在常量中指定。
export const Breakpoints = {
XSmall: '(max-width: 599.99px)',
Small: '(min-width: 600px) and (max-width: 959.99px)',
Medium: '(min-width: 960px) and (max-width: 1279.99px)',
Large: '(min-width: 1280px) and (max-width: 1919.99px)',
XLarge: '(min-width: 1920px)',
Handset: '(max-width: 599.99px) and (orientation: portrait), ' +
'(max-width: 959.99px) and (orientation: landscape)',
Tablet: '(min-width: 600px) and (max-width: 839.99px) and (orientation: portrait), ' +
'(min-width: 960px) and (max-width: 1279.99px) and (orientation: landscape)',
Web: '(min-width: 840px) and (orientation: portrait), ' +
'(min-width: 1280px) and (orientation: landscape)',
HandsetPortrait: '(max-width: 599.99px) and (orientation: portrait)',
TabletPortrait: '(min-width: 600px) and (max-width: 839.99px) and (orientation: portrait)',
WebPortrait: '(min-width: 840px) and (orientation: portrait)',
HandsetLandscape: '(max-width: 959.99px) and (orientation: landscape)',
TabletLandscape: '(min-width: 960px) and (max-width: 1279.99px) and (orientation: landscape)',
WebLandscape: '(min-width: 1280px) and (orientation: landscape)',
};现在您可以更改或自定义断点。例如:
isHandset$: Observable<boolean> = this.breakpointObserver.observe(Breakpoints.Handset)isTablet$: Observable<boolean> = this.breakpointObserver.observe(Breakpoints.Tablet)https://stackoverflow.com/questions/53165736
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