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我是AngularJS/Ionic的新手,我試圖檢測輸入類型的值的變化=「range」,並且根據這個值在js中做事情。
但我不知道如何檢測它:$ watch或ng-change?
下面的代碼: HTML:
<html ng-app="SnowBoard">
<head>
<meta charset="utf-8">
<meta name="viewport" content="initial-scale=1, maximum-scale=1, user-scalable=no, width=device-width">
<title>Checkboxes</title>
<link href="//code.ionicframework.com/nightly/css/ionic.css" rel="stylesheet">
<script src="//code.ionicframework.com/nightly/js/ionic.bundle.js"></script>
</head>
<body ng-controller="ComputeCtrl">
<ion-content>
<div class="range">
<input id="levelrange" type="range" min="0" max="10" value="5" name="userlevelofsurfing" ng-model="levelvalue" ng-change="setLevelText()">
{{levelvalue}}
</div>
<div id="leveldisplay">
</div>
{{testvariable}}
</ion-content>
</body>
</html>
JS:
angular.module('SnowBoard', ['ionic'])
.run(function($ionicPlatform) {
$ionicPlatform.ready(function() {
// Hide the accessory bar by default (remove this to show the accessory bar above the keyboard
// for form inputs)
if(window.cordova && window.cordova.plugins.Keyboard) {
cordova.plugins.Keyboard.hideKeyboardAccessoryBar(true);
}
if(window.StatusBar) {
// org.apache.cordova.statusbar required
StatusBar.styleDefault();
}
});
})
.config(function($stateProvider, $urlRouterProvider) {
$stateProvider
.state('app', {
url: "/app",
abstract: true,
templateUrl: "templates/menu.html",
controller: 'AppCtrl'
})
.state('app.browse', {
url: "/browse",
views: {
'menuContent' :{
templateUrl: "templates/compute.html",
controller: 'ComputeCtrl'
}
}
})
// if none of the above states are matched, use this as the fallback
$urlRouterProvider.otherwise('/app/playlists');
})
.controller('ComputeCtrl', function($scope, $ionicPopup, $timeout) {
$scope.data = {
levelvalue: 5,
level1wordDescription: "INTERMEDIATE+",
testvariable: "dummy"
}
$scope.$watch('data.levelvalue', function(newVal, oldVal) {
console.log('data.levelvalue is now '+newVal);
console.log('data.levelvalue is now '+data.levelvalue);
});
$scope.setLevelText = function(rangeValue) {
console.log('range value has changed to :'+$scope.data.levelvalue);
$scope.data.testvariable = $scope.data.levelvalue;
}
});
http://codepen.io/LouisDoe/pen/jEEJxd
感謝您的回答。但是,如果我使用'ng-change =「setLevelText()'而不是'ng-change =」setLevelText(data.levelvalue)''該函數不起作用... – Louis 2014-11-23 19:16:14
看到這個,你不需要通過該值是因爲它已經在$ scope上,並且您甚至不在更改事件方法中使用它。 http://codepen.io/gnomeontherun/pen/ZYGWzJ – 2014-11-24 19:01:10