Question

这是HTML代码：

<!DOCTYPE html>
<html ng-app="plunker">

<head>
    <meta charset="utf-8" />
    <title>TestBed</title>
    <link data-require="bootstrap-css@3.0.0" data-semver="3.0.0" rel="stylesheet" href="//netdna.bootstrapcdn.com/bootstrap/3.0.0/css/bootstrap.min.css" />
    <link data-require="font-awesome@4.3.0" data-semver="4.3.0" rel="stylesheet" href="//maxcdn.bootstrapcdn.com/font-awesome/4.3.0/css/font-awesome.min.css" />
    <link href="//netdna.bootstrapcdn.com/font-awesome/3.2.1/css/font-awesome.css" rel="stylesheet" />
    <link rel="stylesheet" href="css/style.css" />

</head>

<body ng-controller="MainCtrl" ng-cloak="">

<div class="container">

    <div class="row">
        <div class="col-md-12">

            asdfasdf
            <js-speech ng-model="speech"></js-speech>

            <!--
            <pre>js-speech ng-model="speech"</pre>
            <br />-->

            <strong>Debugger</strong>
            <pre>$scope.speech:{{speech|json}}</pre>
        </div>
    </div>
</div>

<!-- Application Scripts -->
<script data-require="jquery@2.0.3" data-semver="2.0.3" src="http://code.jquery.com/jquery-2.0.3.min.js"></script>
<script data-require="angular.js@1.0.x" src="https://ajax.googleapis.com/ajax/libs/angularjs/1.0.8/angular.min.js" data-semver="1.0.8"></script>
<script data-require="modernizr@2.6.2" data-semver="2.6.2" src="//cdnjs.cloudflare.com/ajax/libs/modernizr/2.6.2/modernizr.js"></script>



<script src="js/Speech.js"></script>
<script src="js/speechapp.js"></script>

</body>

</html>

这里有角度的speechapp.js

(function() {
    var app;

    app = angular.module("plunker", ["jonniespratley.angularWebSpeechDirective"]);

    app.controller("MainCtrl", function($scope) {


        return $scope.speech = {
            maxResults: 25,
            continuous: true,
            interimResults: true
        };

        $scope.$on('onresult', function() {console.log( "---->speech.interimResults<----" );});

        $scope.test=function(){
            console.log( "---->speech.interimResults<----" );
        }
        $scope.$digest();
        $scope.$watch('$scope.speech.interimResults', function() {console.log( "---->speech.interimResults<----" ); }, true);

        $scope.$watch('speech.interimResults', function(newVal, oldVal) {
          //do something here like get the text input value and send to api
          //after speaking even the value of speech.intermResults change this does not get triggered.  
          return console.log(newVal);
        }, true);
    });

}).call(this);

我想要发生的是每当用户完成对Mic的说话时，我都可以获得输入txt，这样我就可以发布文本内容。我需要获取文本输入的内容并能够将其发送到API，但是我无法找到该指令的onresult事件的钩子。

这是观看scope.speech的好方法，我尝试了$ scope。$ watch看看$ scope.speech是否已更改，但它无效。提前感谢您的帮助。

Answer 1

不要使用$scope来引用$watch中的范围变量。而不是

$scope.$watch('$scope.speech.interimResults', function () {
    console.log("---->speech.interimResults<----");
}, true);

你应该写

$scope.$watch('speech.interimResults', function () {
    console.log($scope.speech.interimResults);
}, true);

AngularJs如何检测范围变量对象的变化

1 个答案: