ionic之将android导航栏安放到底部

我是代码

 .config(function ($stateProvider, $urlRouterProvider,$ionicConfigProvider) {

    $ionicConfigProvider.platform.ios.tabs.style('standard');
    $ionicConfigProvider.platform.ios.tabs.position('bottom');
    $ionicConfigProvider.platform.android.tabs.style('standard');
    $ionicConfigProvider.platform.android.tabs.position('bottom');

    $ionicConfigProvider.platform.ios.navBar.alignTitle('center');
    $ionicConfigProvider.platform.android.navBar.alignTitle('center');
    //
    //$ionicConfigProvider.platform.ios.backButton.previousTitleText('').icon('ion-ios-arrow-thin-left');
    //$ionicConfigProvider.platform.android.backButton.previousTitleText('').icon('ion-android-arrow-back');
    //
    $ionicConfigProvider.platform.ios.views.transition('ios');
    $ionicConfigProvider.platform.android.views.transition('android');

    // Ionic uses AngularUI Router which uses the concept of states
    // Learn more here: https://github.com/angular-ui/ui-router
    // Set up the various states which the app can be in.
    // Each state's controller can be found in controllers.js
    $stateProvider
    // setup an abstract state for the tabs directive
      .state('tab', {
        url: '/tab',
        abstract: true,
        templateUrl: 'templates/tabs.html'
      })
      // Each tab has its own nav history stack:

      .state('tab.list', {
        url: '/list',
        cache: false,
        views: {
          'tab-list': {
            templateUrl: 'templates/tab-list.html',
            controller: 'ListCtrl'
          }
        }
      })
      .state('tab.cardList', {
        url: '/cardList',
        cache: false,
        views: {
          'tab-cardList': {
            templateUrl: 'templates/tab-cardList.html',
            controller: 'CardListCtrl'
          }
        }
      })

      .state('tab.create', {
        url: '/list/create',
        cache: false,
        views: {
          'tab-list': {
            templateUrl: 'templates/create.html',
            controller: 'CreateCtrl'
          }
        }
      })
      // if none of the above states are matched, use this as the fallback
    $urlRouterProvider.otherwise('/tab/cardList');

  })

因为我自定义了返回按钮，所以有两段话我屏蔽掉了。仔细看变量的名字，很好理解的。