AngularCSS--关于angularjs动态加载css文件的方法(仅供参考)
AngularCSS
CSS on-demand for AngularJS
Optimize the presentation layer of your single-page apps by dynamically injecting stylesheets as needed.
AngularCSS listens for route (or states) change events, adds the CSS defined on the current route and removes the CSS from the previous route. It also works with directives in the same fashion with the compile and scope destroy events. See the code samples below for more details.
Read the Article
Introducing AngularCSS: CSS On-Demand for AngularJS
Demos
Angular's ngRoute Demo (source)
Quick Start
Install and manage with Bower or jspm. A CDN is also provided by cdnjs.com
$ bower install angular-css
$ jspm install github:castillo-io/angular-css
1) Include the required JavaScript libraries in your index.html (ngRoute and UI Router are optional).
<script src="/libs/angularjs/1.5.6/angular.min.js"></script>
<script src="/libs/angularjs/1.5.6/angular-routes.min.js"></script>
<script src="/libs/angular-css/angular-css.min.js"></script>
2) Add angularCSS as a dependency for your app.
var myApp = angular.module('myApp', ['ngRoute','angularCSS']);
NOTE: The module name "door3.css" is now deprecated.
Examples
This module can be used by adding a css property in your routes values, directives or by calling the $css service methods from controllers and services.
The css property supports a string, an array of strings, object notation or an array of objects.
See examples below for more information.
In Components
myApp.component('myComponent', {
css: 'my-component/my-component.css' // <--- magic!
templateUrl: 'my-component/my-component.html',
});
In Directives
myApp.directive('myDirective', function () {
return {
restrict: 'E',
templateUrl: 'my-directive/my-directive.html',
/* Binding css to directives */
css: 'my-directive/my-directive.css'
}
});
In Controllers
myApp.controller('pageCtrl', function ($scope, $css) {
// Binds stylesheet(s) to scope create/destroy events (recommended over add/remove)
$css.bind({
href: 'my-page/my-page.css'
}, $scope);
// Simply add stylesheet(s)
$css.add('my-page/my-page.css');
// Simply remove stylesheet(s)
$css.remove(['my-page/my-page.css','my-page/my-page2.css']);
// Remove all stylesheets
$css.removeAll();
});
For Routes (Angular's ngRoute)
Requires ngRoute as a dependency
myApp.config(function($routeProvider) {
$routeProvider
.when('/page1', {
templateUrl: 'page1/page1.html',
controller: 'page1Ctrl',
/* Now you can bind css to routes */
css: 'page1/page1.css'
})
.when('/page2', {
templateUrl: 'page2/page2.html',
controller: 'page2Ctrl',
/* You can also enable features like bust cache, persist and preload */
css: {
href: 'page2/page2.css',
bustCache: true
}
})
.when('/page3', {
templateUrl: 'page3/page3.html',
controller: 'page3Ctrl',
/* This is how you can include multiple stylesheets */
css: ['page3/page3.css','page3/page3-2.css']
})
.when('/page4', {
templateUrl: 'page4/page4.html',
controller: 'page4Ctrl',
css: [
{
href: 'page4/page4.css',
persist: true
}, {
href: 'page4/page4.mobile.css',
/* Media Query support via window.matchMedia API
* This will only add the stylesheet if the breakpoint matches */
media: 'screen and (max-width : 768px)'
}, {
href: 'page4/page4.print.css',
media: 'print'
}
]
});
});
For States (UI Router)
Requires ui.router as a dependency
myApp.config(function($stateProvider) {
$stateProvider
.state('page1', {
url: '/page1',
templateUrl: 'page1/page1.html',
css: 'page1/page1.css'
})
.state('page2', {
url: '/page2',
templateUrl: 'page2/page2.html',
css: {
href: 'page2/page2.css',
preload: true,
persist: true
}
})
.state('page3', {
url: '/page3',
templateUrl: 'page3/page3.html',
css: ['page3/page3.css','page3/page3-2.css'],
views: {
'state1': {
templateUrl: 'page3/states/page3-state1.html',
css: 'page3/states/page3-state1.css'
},
'state2': {
templateUrl: 'page3/states/page3-state2.html',
css: ['page3/states/page3-state2.css']
},
'state3': {
templateUrl: 'page3/states/page3-state3.html',
css: {
href: 'page3/states/page3-state3.css'
}
}
}
})
.state('page4', {
url: '/page4',
templateUrl: 'page4/page4.html',
views: {
'state1': {
templateUrl: 'states/page4/page4-state1.html',
css: 'states/page4/page4-state1.css'
},
'state2': {
templateUrl: 'states/page4/page4-state2.html',
css: ['states/page4/page4-state2.css']
},
'state3': {
templateUrl: 'states/page4/page4-state3.html',
css: {
href: 'states/page4/page4-state3.css'
}
}
},
css: [
{
href: 'page4/page4.css',
}, {
href: 'page4/page4.mobile.css',
media: 'screen and (max-width : 768px)'
}, {
href: 'page4/page4.print.css',
media: 'print'
}
]
});
});
Responsive Design
AngularCSS supports "smart media queries". This means that stylesheets with media queries will be only added when the breakpoint matches. This will significantly optimize the load time of your apps.
$routeProvider
.when('/my-page', {
templateUrl: 'my-page/my-page.html',
css: [
{
href: 'my-page/my-page.mobile.css',
media: '(max-width: 480px)'
}, {
href: 'my-page/my-page.tablet.css',
media: '(min-width: 768px) and (max-width: 1024px)'
}, {
href: 'my-page/my-page.desktop.css',
media: '(min-width: 1224px)'
}
]
});
Even though you can use the media property to specify media queries, the best way to manage your breakpoints is by settings them in the provider's default settings. For example:
myApp.config(function($routeProvider, $cssProvider) {
angular.extend($cssProvider.defaults, {
breakpoints: {
mobile: '(max-width: 480px)',
tablet: '(min-width: 768px) and (max-width: 1024px)',
desktop: '(min-width: 1224px)'
}
});
$routeProvider
.when('/my-page', {
templateUrl: 'my-page/my-page.html',
css: [
{
href: 'my-page/my-page.mobile.css',
breakpoint: 'mobile'
}, {
href: 'my-page/my-page.tablet.css',
breakpoint: 'tablet'
}, {
href: 'my-page/my-page.desktop.css',
breakpoint: 'desktop'
}
]
});
});
Config
You can configure AngularCSS at the global or stylesheet level.
Configuring global options
These options are applied during your app's config phase or via $cssProvider.
myApp.config(function($cssProvider) {
angular.extend($cssProvider.defaults, {
container: 'head',
method: 'append',
persist: false,
preload: false,
bustCache: false
});
});
Configuring CSS options
These options are applied at the stylesheet level.
css: {
href: 'file-path.css',
rel: 'stylesheet',
type: 'text/css',
media: false,
persist: false,
preload: false,
bustCache: false,
weight: 0
}
Support
AngularCSS is fully supported by AngularJS >= v1.3 && <= v1.5
There is partial support for AngularJS 1.2. It does not support css property via DDO (Directive Definition Object). The workaround is to bind (or add) the CSS in the directive's controller or link function via $css service.
myApp.directive('myDirective', function () {
return {
restrict: 'E',
templateUrl: 'my-directive/my-directive.html',
controller: function ($scope, $css) {
$css.bind('my-directive/my-directive.css', $scope);
}
}
});
Angular 2
Can I use AngularCSS in Angular 2?
AngularCSS is not necessary in Angular 2! Angular 2 ships with a similar feature out of the box. It's called styles andstyleUrls and it looks like this:
@Component({
selector: 'my-component',
templateUrl: 'app/components/my-component/my-component.html',
styleUrls: ['app/components/my-component/my-component.css'],
})
Browsers
Chrome, Firefox, Safari, iOS Safari, Android and IE9+
IE9 Does not support matchMedia API. This means that in IE9, stylesheets with media queries will be added without checking if the breakpoint matches.
Contributing
Please submit all pull requests the against master branch. If your pull request contains JavaScript patches or features, you should include relevant unit tests.
Copyright and license
The MIT License
Copyright (c) 2016 Alex Castillo
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
文章来自：https://github.com/castillo-io/angular-css最新文章
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