问JS停止当前播放新音频对象

EN

sound = new Audio($scope.mp3);

angular.module('starter.controllers', ['firebase'])


.controller('AppCtrl', function($scope, $ionicModal, $timeout) {

   // Initialize Firebase


  // With the new view caching in Ionic, Controllers are only called
  // when they are recreated or on app start, instead of every page change.
  // To listen for when this page is active (for example, to refresh data),
  // listen for the $ionicView.enter event:
  //$scope.$on('$ionicView.enter', function(e) {
  //});

  // Form data for the login modal
  $scope.loginData = {};

  // Create the login modal that we will use later
  $ionicModal.fromTemplateUrl('templates/login.html', {
    scope: $scope
  }).then(function(modal) {
    $scope.modal = modal;
  });

  // Triggered in the login modal to close it
  $scope.closeLogin = function() {
    $scope.modal.hide();
  };

  // Open the login modal
  $scope.login = function() {
    $scope.modal.show();
  };

  // Perform the login action when the user submits the login form
  $scope.doLogin = function() {
    console.log('Doing login', $scope.loginData);

    // Simulate a login delay. Remove this and replace with your login
    // code if using a login system
    $timeout(function() {
      $scope.closeLogin();
    }, 1000);
  };

})

// Browse Controller
.controller('BrowseCtrl', function($scope, $http, $firebaseArray) {
  // Create Podcast reference 
  const dbRefObject = firebase.database().ref().child('podcasts');
  $scope.playlists = $firebaseArray(dbRefObject);
  console.log($firebaseArray(dbRefObject));
})




// Podcast Detailed Controller
.controller('PodcastCtrlDetailed', function($scope, $http, $stateParams, $firebaseArray) {

  // URL Parameter
  var podcastRefID = $stateParams.playlistId;

  const oneRef = firebase.database().ref().child('podcasts').child(podcastRefID).on("value", function(snapshot) {

    $scope.mp3 = snapshot.val().audio;
    sound = new Audio($scope.mp3);

    $scope.playSong = function() {
      
      if (sound.duration > 0 && !sound.paused) {
        sound.pause();
      } else {
          sound.play();
      }

    }; 


  }, function (errorObject) {
    console.log("The read failed: " + errorObject.code);
  });


});

<i class="ion-play" ng-click="playSong()" ></i>