[英]Populating ion-list with contacts
I am creating a IONIC ANDROID APP using cordova-plugin-contacts plugin to read the contacts and display them in ion-list. 我正在使用cordova-plugin-contacts插件创建IONIC ANDROID APP,以读取联系人并将其显示在ion-list中。
index.html index.html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="initial-scale=1, maximum-scale=1, user-scalable=no, width=device-width">
<title></title>
<link href="lib/ionic/css/ionic.css" rel="stylesheet">
<link href="css/style.css" rel="stylesheet">
<!-- IF using Sass (run gulp sass first), then uncomment below and remove the CSS includes above
<link href="css/ionic.app.css" rel="stylesheet">
-->
<!-- ionic/angularjs js -->
<script src="lib/ionic/js/ionic.bundle.js"></script>
<!-- cordova script (this will be a 404 during development) -->
<script src="cordova.js"></script>
<!-- your app's js -->
<script src="js/app.js"></script>
<script src="js/controllers.js"></script>
</head>
<body ng-app="starter" ng-controller="CListControl">
<ion-pane>
<ion-header-bar class="bar-royal">
<h1 class="title">Contact Reader</h1>
<button class="button" ng-click="showcontact()">Add New Contact</button>
</ion-header-bar>
<ion-content>
<h3 id="Data">Welcome to my app created by Ionic Cortova !! Yeh !!! Hello</h3>
<ion-list >
<ion-item ng-repeat="item in CListItems">
{{item.displayName}}
</ion-item>
</ion-list>
</ion-content>
</ion-pane>
<script>
</script>
</body>
</html>
app.js app.js
// Ionic Starter App
// angular.module is a global place for creating, registering and retrieving Angular modules
// 'starter' is the name of this angular module example (also set in a <body> attribute in index.html)
// the 2nd parameter is an array of 'requires'
angular.module('starter', ['ionic','starter.controllers'])
.run(function($ionicPlatform) {
$ionicPlatform.ready(function() {
// Hide the accessory bar by default (remove this to show the accessory bar above the keyboard
// for form inputs)
if(window.cordova && window.cordova.plugins.Keyboard) {
cordova.plugins.Keyboard.hideKeyboardAccessoryBar(true);
}
if(window.StatusBar) {
StatusBar.styleDefault();
}
});
})
controllers.js controllers.js
angular.module('starter.controllers', [])
.controller('CListControl', function ($scope) {
$scope.CListItems=[{displayName: 'Mohit'}];
document.getElementById("Data").innerHTML="Undone";
//funtion to add items to the existing list
$scope.showcontact = function() {
console.log("before event");
document.getElementById("Data").innerHTML="Done";
document.addEventListener("deviceready", init, false);
function init() {
console.log("init");
var options = new ContactFindOptions();
options.multiple= true;
options.hasPhoneNumber = true;
var fields = [navigator.contacts.fieldType.displayName,navigator.contacts.fieldType.phoneNumbers];
navigator.contacts.find(fields, gotContacts, errorHandler, options);
console.log("init end");
}
//Error Alerting
function errorHandler(e) {
alert("errorHandler: "+e);
}
//Script to remove all the contacts without phonenumber.
function gotContacts(c) {
var i=0;
len=c.length;
while (i<len)
{
if (c[i].phoneNumbers==null)
{
c.splice(i,1);
if (i!=0) {i-=1;}
len-=1;
}
else
{
$scope.CListItems.push(c[i]);
}
i+=1;
}
alert("Found:"+$scope.CListItems.length+" Contacts");
}
}
});
My Output:- 我的输出:
The app starts fine, upon clicking the Add New Contact button, after some time I am getting an alert showing me the no of contacts. 在单击“ 添加新联系人”按钮后,该应用程序运行正常,一段时间后,我收到一条警报,向我显示没有联系人。 But only 1 item in the ion-list is showing ie 'Mohit' .
但是离子列表中只有一项显示为'Mohit' 。
But when I click the Add new Contact button again, all the contacts are populated in the ion-list. 但是,当我再次单击“ 添加新联系人”按钮时,所有联系人都将填充在离子列表中。
My Problem:- 我的问题:-
As I explained, I think the app is working 1 click behind. 正如我所解释的,我认为该应用程序可以正常运行1次单击。 Any Ideas whats causing that.
任何想法是什么造成的。
I am new to ionic framework and also javascript so please point me out if its a simple mistake. 我是离子框架和javascript的新手,所以如果它是一个简单的错误,请指出。
Thank you. 谢谢。
The answer was quite simple, I just had to use $scope.$apply()
after I have changed the value of variable watched by the <ion-list>
. 答案很简单,我只需要使用
$scope.$apply()
更改<ion-list>
监视的变量的值。 In this case after the update of $scope.CListItems
在这种情况下,更新
$scope.CListItems
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