我非常擅长离子和工作在你加载一堆类别的应用程序，然后是类别中的项目列表，当你点击类别中的项目时，文档将加载包含基本上的内容一个图像。目前，一切都很好，但我想在我的类别可见时预加载内容，所以即使我离线我也应该能够点击类别列表中的任何项目并加载相应的文档。我在网上查了一下，但是除了本地存储之外我找不到任何东西，它们在您访问之后而不是之前缓存数据。有没有办法预加载或预先缓存内容？
这是我的控制器代码：
angular.module('starter.controllers', ["utility.services"])
.directive("bindCompiledHtml", ["$compile", "zoomPerOrientation", function($compile, zoomPerOrientation) {
return {
template: '<div></div>',
scope: {
rawHtml: '=bindCompiledHtml'
},
link: function(scope, elem, attrs) {
scope.$watch('rawHtml', function(value) {
if (!value) return;
var newElem = $compile(value)(scope.$parent);
elem.contents().remove();
zoomPerOrientation.zoomTo('docScroll');
elem.append(newElem);
elem.bind("click", function(e) {
e.stopPropagation();
e.preventDefault();
if (e.target.tagName === 'A') {
window.open(encodeURI(e.target.href), '_system', "presentationstyle=fullscreen,closebuttoncaption=close,location=no,transitionstyle=fliphorizontal");
return false;
} else if (e.target.parentNode.tagName === 'A') {
window.open(encodeURI(e.target.parentNode.href), '_system', "presentationstyle=fullscreen,closebuttoncaption=close,location=no,transitionstyle=fliphorizontal");
return false;
}
});
});
}
};
}])
.directive('setHeight', function($window) {
return {
link: function(scope, element, attrs) {
element.css('height', $window.innerHeight + 30);
}
}
})
.controller("MenuCtrl", ["$scope", "MenuService", "$stateParams", "$state", "ConfigUrls", function($scope, MenuService, $stateParams, $state, ConfigUrls) {
// debugger;
console.log("MenuCtrl");
$scope.menuData = [];
$scope.noMenuDataMsg = "Loading....";
$scope.LoadMenu = function(forceLoad) {
console.log("MenuCtrl - LoadMenu");
// console.log(MenuService.getClinicalAreas(forceLoad));
MenuService.getClinicalAreas(forceLoad).then(function(data) {
$scope.menuData = data;
}, function(err) {
console.log(err);
if (err.error === "timeout") {
$scope.noMenuDataMsg = "Error: Unable to retrieve data due to network error! Please try again when you are in network."
} else {
$scope.noMenuDataMsg = "Error retrieving data! Please contact system administrator."
}
$scope.menuData = [];
}).finally(function() {
$scope.$broadcast('scroll.refreshComplete');
});
}
$scope.deviceModel = window.localStorage.getItem("deviceModel");
// console.log(MenuService);
// console.log($scope.menuData);
$scope.title = $stateParams.topTitle;
var metaTag = $stateParams.metaTag;
//console.log(ConfigUrls[metaTag+"Published"]);
if (metaTag !== "") {
window.localStorage.setItem('publishedUrl', ConfigUrls[metaTag + "Published"]);
window.localStorage.setItem('docUrl', ConfigUrls[metaTag + "DocUrl"]);
window.localStorage.setItem('cacheKeyPrefix', metaTag);
$scope.LoadMenu(false);
} else {
$scope.noMenuDataMsg = "Under Construction!";
}
//console.log("metaTag",metaTag);
//if ($stateParams.topTitle === "Transplant") {
// $scope.LoadMenu(false);
//}
//else {
// $scope.noMenuDataMsg = "Under Construction!";
//}
$scope.showHomeItem = function(clinicalArea) {
console.log("MenuCtrl - showHomeItem");
$state.go('contr.home', {
cA: clinicalArea
});
}
$scope.goHome = function() {
console.log("MenuCtrl - goHome");
$state.go('contr.topmenu');
}
}])
.controller("HomeCtrl", ["$scope", "HomeService", "$stateParams", "$state", function($scope, HomeService, $stateParams, $state) {
console.log("HomeCtrl");
$scope.organs = [];
$scope.title = $stateParams.cA;
$scope.LoadHome = function(forceLoad) {
console.log("HomeCtrl - LoadHome");
HomeService.getOrgans($stateParams.cA, forceLoad).then(function(data) {
$scope.organs = data;
}, function(err) {
$scope.organs = [];
}).finally(function() {
$scope.$broadcast('scroll.refreshComplete');
});
}
$scope.showLevel2Item = function(title, clinicalArea) {
console.log("HomeCtrl - showLevel2Item");
$state.go('contr.level2', {
title: title,
cA: clinicalArea
});
//:title/:cA
}
$scope.goHome = function() {
console.log("HomeCtrl - goHome");
$state.go('contr.topmenu');
}
$scope.LoadHome(false);
}])
.controller('Level2Ctrl', ["$scope", "OrganService", "$stateParams", "$state", function($scope, OrganService, $stateParams, $state) {
$scope.title = "Level2 ";
console.log("Level2Ctrl");
$scope.parentOrgan = {};
$scope.viewTitle = $stateParams.title;
OrganService.getSingleOrganDetail($stateParams.cA, $stateParams.title).then(function(data) {
$scope.parentOrgan = data[0];
$scope.parentOrgan.clinicalAreaDisp = "Transplant";
}, function(err) {
$scope.parentOrgan = {};
});
console.log($scope.parentOrgan);
$scope.subGroup = [];
$scope.LoadSubGroups = function(forceLoad) {
console.log("Level2Ctrl - LoadSubGroups");
OrganService.getSubGroups($stateParams.title, $stateParams.cA, forceLoad).then(function(data) {
$scope.subGroup = data;
console.log("$scope.subGroup", $scope.subGroup);
}, function(err) {
$scope.subGroup = [];
}).finally(function() {
$scope.$broadcast('scroll.refreshComplete');
});
}
//$scope.deviceModel = window.localStorage.getItem("deviceModel");
//$scope.devicePlatform = window.localStorage.getItem("devicePlatform");
$scope.toggleGroup = function(group) {
group.show = !group.show;
};
$scope.isGroupShown = function(group) {
return group.show;
};
$scope.showDocumentDtl = function(id, docTitle, sgName, mnGroup, area) {
console.log("Level2Ctrl - showDocumentDtl");
$state.go('contr.doc-dtl', {
id: id,
docTitle: docTitle,
sgName: sgName,
mnGroup: mnGroup,
area: area
});
//:title/:cA
}
$scope.goHome = function() {
console.log("Level2Ctrl - goHome");
$state.go('contr.topmenu');
}
$scope.LoadSubGroups();
}])
.controller('DocumentCtrl', ["$scope", "DocmentService", "zoomPerOrientation", "$stateParams", "$ionicScrollDelegate", "$state", function($scope, DocmentService, zoomPerOrientation, $stateParams, $ionicScrollDelegate, $state) {
$scope.viewData = {};
$scope.snippet = "<p style='margin-top:40%;margin-left:40%;font-weight:bold;font-size:1.6em;' class='item item-stable'>Loading...</p>";
$scope.statusMessage = "";
$scope.title = $stateParams.mnGroup;
console.log("DocumentCtrl");
console.log("$stateParams", $stateParams);
//, $stateParams.docTitle, $stateParams.sgName, $stateParams.mnGroup, $stateParams.area
// console.log("Inside docuemtn controller");
$scope.LoadDocument = function(forceLoad) {
console.log("DocumentCtrl - LoadDocument");
DocmentService.getRowDocument($stateParams.id, $stateParams.docTitle, $stateParams.sgName, $stateParams.mnGroup, $stateParams.area, forceLoad).then(
function(data) {
// console.log("successfull", data);
$scope.viewData = data;
$scope.snippet = $scope.viewData.document;
},
function(reason) {
// console.log("Error Occured", reason);
$scope.viewData = {
"docTitle": "Error Occured!"
};
if (reason.error === "timeout") {
$scope.snippet = "<div style='margin-top:40%;margin-left:15%;font-weight:bold;font-size:1.6em;width:600px !important;padding:16px !important;line-height:120%;' class='item item-stable item-text-wrap item-complex'>Error: Unable to the load the document at this time. Please make sure you are in the network or you have already fetched the document while you were in the network!</div>";
}
// $scope.statusMessage = err;
}).finally(function() {
console.log("finally", data);
$scope.$broadcast('scroll.refreshComplete');
});
}
//below code would be refactored in near future.
//It is not a good practice adding window event listener in the controller
window.addEventListener('orientationchange', function() {
try {
if ($ionicScrollDelegate.$getByHandle('docScroll')._instances.length > 2) {
zoomPerOrientation.zoomTo('docScroll');
}
} catch (exception) {
console.log(exception);
}
});
$scope.goHome = function() {
console.log("DocumentCtrl - goHome");
$state.go('contr.topmenu');
}
$scope.LoadDocument(true);
}])
.controller('TopMenuCtrl', ["$scope", "TopMenuService", "$state", "$ionicHistory",
function($scope, TopMenuService, $state, $ionicHistory) {
$ionicHistory.clearHistory();
$scope.title = "Rules";
$scope.menuItems = [];
$scope.menuItemsLandscape = [];
$scope.flatMenuItems = [];
$scope.tileView = true;
$scope.listView = false;
$scope.portraitMode = true;
console.log("TopMenuCtrl");
TopMenuService.getMenuItems().then(function(data) {
$scope.menuItems = data.colData;
$scope.flatMenuItems = data.flatData;
$scope.menuItemsLandscape = data.threeColData;
console.log($scope.menuItems);
},
function() {
$scope.menuItems = [];
});
$scope.showMenuItem = function(title, metaTag) {
console.log("TopMenuCtrl - showMenuItem");
//$state.go('tab.menu', { topTitle: title });
$state.go('contr.menu', {
topTitle: title,
metaTag: metaTag
});
}
$scope.itemChanged = function() {
console.log("TopMenuCtrl - itemChanged");
console.log($scope.tileView);
if ($scope.tileView) {
$scope.listView = true;
$scope.tileView = false;
} else {
$scope.listView = false;
$scope.tileView = true;
}
}
// console.log(window.orientation);
function onChangeOrientation() {
console.log("TopMenuCtrl - onChangeOrientation");
try {
//landscape mode
// console.log("Orientation Changed");
if (window.orientation === 90 || window.orientation == -90) {
$scope.portraitMode = false;
}
//portrait
else {
$scope.portraitMode = true;
}
} catch (exception) {
console.log(exception);
}
}
onChangeOrientation();
window.addEventListener('orientationchange', function() {
try {
//landscape mode
// console.log("Orientation Changed");
if (window.orientation === 90 || window.orientation == -90) {
$scope.$apply(function() {
$scope.portraitMode = false;
});
}
//portrait
else {
$scope.$apply(function() {
$scope.portraitMode = true;
});
}
} catch (exception) {
console.log(exception);
}
});
}
])
.controller('LoginController', ["$scope", "$location", "$ionicHistory", '$timeout', '$ionicLoading', '$state',
function($scope, $location, $ionicHistory, $timeout, $ionicLoading, $state) {
$scope.username = "Guest";
$scope.password = "Abcd123";
// $ionicNavBarDelegate.showBar(false);
$scope.login = function(password) {
console.log("LoginController - login");
if (password) {
$ionicLoading.show({
content: 'Loading',
animation: 'fade-in',
showBackdrop: true,
template: '<p class="item-icon-left bar-header"><ion-spinner icon="lines"/></p>',
maxWidth: 200,
showDelay: 0
});
window.localStorage.setItem("Pswd", password);
$ionicHistory.nextViewOptions({
disableAnimate: true,
disableBack: true
});
$timeout(function() {
$ionicLoading.hide();
//$location.path("/tab/topmenu");
$state.go('contr.topmenu');
}, 1000);
}
}
}
])
.controller('AccountCtrl', function($scope) {
$scope.settings = {
enableFriends: true
};
});
如果您需要任何其他信息，请告诉我。此外，目前我支持本地缓存在本地缓存类别，但不预先缓存。有没有办法事先检索这些文件？点击特定项目后，请查看我的装入文档部分，其中涉及加载文档URL。