angularjs中如何实现页面自适应？

define([ "app" ], function(app) {
  app.directive('autoHeight',function ($window) {
    return {
      restrict : 'A',
      scope : {},
      link : function($scope, element, attrs) {
        var winowHeight = $window.innerHeight; //获取窗口高度
        var headerHeight = 80;
        var footerHeight = 20;
        element.css('min-height',
            (winowHeight - headerHeight - footerHeight) + 'px');
      }
    };
  });
  return app;
});

<p ui-view auto-height></p>

var app = angular.module('miniapp', []);

function AppController($scope) {
  /* Logic goes here */
}

app.directive('resize', function ($window) {
  return function (scope, element) {
    var w = angular.element($window);
    scope.getWindowDimensions = function () {
      return { 'h': w.height(), 'w': w.width() };
    };
    scope.$watch(scope.getWindowDimensions, function (newValue, oldValue) {
      scope.windowHeight = newValue.h;
      scope.windowWidth = newValue.w;

      scope.style = function () {
        return { 
          'height': (newValue.h - 100) + 'px',
          'width': (newValue.w - 100) + 'px' 
        };
      };

    }, true);

    w.bind('resize', function () {
      scope.$apply();
    });
  }
})

<p ng-app="miniapp" ng-controller="AppController" ng-style="style()" resize>
  window.height: {{windowHeight}} <br />
  window.width: {{windowWidth}} <br />
</p>