我正在使用预先填充的数据库在Cordova中创建一个应用程序,我正在尝试将数据库搜索的结果放在<选择>但是没有在我的html文件中使用ng-click(这是我到目前为止找到解决问题的唯一方法)我尝试使用ng-init但它在我的控制器中执行函数之前.run是我加载我的地方db,这是代码。
app.js
var ionicApp = angular.module('starter', ['ionic', 'ngCordova']);
var db = null;
ionicApp.run(function($ionicPlatform, $cordovaSQLite) {
$ionicPlatform.ready(function() {
if(window.cordova && window.cordova.plugins.Keyboard) {
cordova.plugins.Keyboard.hideKeyboardAccessoryBar(true);
cordova.plugins.Keyboard.disableScroll(true);
}
if(window.StatusBar) {
StatusBar.styleDefault();
}
window.plugins.sqlDB.copy("mydb.db","./plugins/me.rahul.plugins.sqlDB/WWW/sqlDB.js",function() {
db = $cordovaSQLite.openDB("mydb.db");
}, function(error) {
db = $cordovaSQLite.openDB("mydb.db");
});
});
});
ionicApp.controller('first-select', function($scope, $cordovaSQLite){
$scope.options = [];
$scope.select = function () {
var query = "SELECT emp FROM adm_cia";
$cordovaSQLite.execute(db, query,[]).then(function(res){
if(res.rows.length > 0){
var newOptions = [];
for(var i = 0; i < res.rows.length; i++){
var idn = (i+1).toString();
newOptions.push({id: idn, name: res.rows.item(i).emp});
}
$scope.options = newOptions;
} else { }
}, function(error){
});
}
})
和index.html
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Security-Policy" content="default-src 'self' data: gap: https://ssl.gstatic.com 'unsafe-eval'; style-src 'self' 'unsafe-inline'; media-src *">
<meta name="format-detection" content="telephone=no">
<meta name="msapplication-tap-highlight" content="no">
<meta name="viewport" content="user-scalable=no, initial-scale=1, maximum-scale=1, minimum-scale=1, width=device-width">
<meta charset="utf-8">
<meta name="viewport" content="initial-scale=1, maximum-scale=1, user-scalable=no, width=device-width">
<link href="lib/ionic/css/ionic.css" rel="stylesheet">
<link rel="stylesheet" href="lib/mobile-angular-ui/dist/css/mobile-angular-ui-base.min.css"/>
<link href="css/style.css" rel="stylesheet">
<script type="text/javascript" src="js/jquery.js"></script>
<script type="text/javascript" src="bootstrap/js/bootstrap.min.js"></script>
<script src="js/angular-aside/docs/js/angular.min.js"></script>
<script src="js/angular-route/angular-route.min.js"></script>
<script src="lib/mobile-angular-ui/dist/js/mobile-angular-ui.min.js"></script>
<script src="lib/ionic/js/ionic.bundle.js"></script>
<script src="js/ng-cordova.min.js"></script>
<script src="cordova.js"></script>
<script src="js/app.js"></script>
<title>Login</title>
</head>
<body ng-app="starter" ng-controller="first-select" class="scrollable-content" ng-init="select()">
<form id="login" method="get" action="indice.html">
<div align="justify">
<h1 class="color-letra">Nova Plus mobile</h1>
<div class="form_input">
<input ng-click="select()" type="text" placeHolder="Ususario" name="username" requiered> <!-- this ng-click will be instead of the ng-init and is the only way that it works-->
</div>
<div class="form_input">
<input type="password" placeHolder="Contraseña" name="password" required>
</div>
<div class="form_input" style="margin-bottom : 30px">
<select name="empresas" class="empresas" required>
<option value="">Seleccione empresa</option>
<option value="1">prueba</option>
<option ng-repeat="option in options" value="{{option.id}}">{{option.name}}</option>
</select>
</div>
<div class="centrar">
<button type="submit" id="btn-default">Enviar</button>
</div>
</div>
</form>
</body>
</html>
这段代码首先执行select()函数,然后打开数据库后,首先打开数据库,然后执行select()函数。
问候。
答案 0 :(得分:1)
$ionicPlatform.ready
不是您在离子应用程序中执行的第一件事。调用$ionicPlatform.ready
函数告诉您cordova API已准备好使用(它是cordova deviceReady事件的包装器)。这意味着Angular将在加载库后立即开始引导您的应用程序,而无需等待$ionicPlatform.ready
回调。
您可以通过从html正文声明中删除ng-app="starter"
标记来解决此问题,因为这会指示angular立即引导您的应用程序。而是在ionic.Platform.ready
被触发后手动引导应用程序并完成所有初始化。这是一个示例代码
var ionicApp = angular.module('starter', ['ionic']);
ionicApp.controller('first-select', function($scope){
$scope.select = function(){
console.log("controller initialized");
// do your thing
};
})
ionic.Platform.ready(function() {
console.log("device ready!");
// do your db init magic
angular.bootstrap(document.body, ['starter']);
});
这样,“设备就绪”日志将始终在“控制器初始化”日志之前写入控制台,并且不存在竞争条件。
请注意,您不能使用ionicApp模块的运行块来引导应用程序,因为在angular引导应用程序之后会调用运行块。因此,如果您没有自动引导它,它将永远不会被调用。