javascript - Changing CSS property on entering or leaving AngularJS state -


i've got app want change css property on entering/exiting angular state. css property background-color on html , body elements (basically backdrop) gets exposed on transitions between states. i'd change color of backdrop make transitions bit nicer. suggestions how can in angular?

ui-router's $state service broadcasts events on $rootscope states change. listen these events , apply style changes accordingly. following cause body have red background during state transitions , white background after:

angular.module('myapp').run(function($rootscope){     $rootscope.$on('$statechangestart', function(event, tostate, toparams, fromstate, fromparams){         //change body background          document.body.style.background = 'red';     });     $rootscope.$on('$statechangesuccess', function(event, tostate, toparams, fromstate, fromparams){         //reset body background         document.body.style.background = 'white';     }); });

ui-router $state docs


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