Core data 如何在Intent Handler中使用获取数据来编辑小部件IOS14?
我目前正在使用SwiftUI开发一个应用程序 我正在尝试制作一个Core data 如何在Intent Handler中使用获取数据来编辑小部件IOS14?,core-data,swiftui,widgetkit,Core Data,Swiftui,Widgetkit,我目前正在使用SwiftUI开发一个应用程序 我正在尝试制作一个小部件用户可以使用IntentConfiguration 我想使用IntentHandler类中的CoreData获取一些数据来编辑小部件,如下图所示 我试着制作一些代码,但它们不起作用 我如何解决我的代码 代码如下: 斯威夫特 import WidgetKit import SwiftUI import CoreData import Intents class IntentHandler: INExtension, Con
小部件
用户可以使用IntentConfiguration
我想使用IntentHandler
类中的CoreData
获取一些数据来编辑小部件,如下图所示
我试着制作一些代码,但它们不起作用
我如何解决我的代码
代码如下: 斯威夫特
import WidgetKit
import SwiftUI
import CoreData
import Intents
class IntentHandler: INExtension, ConfigurationIntentHandling {
var moc = PersistenceController.shared.managedObjectContext
var timerEntity_0:TimerEntity?
var timerEntity_1:TimerEntity?
var timerEntity_2:TimerEntity?
init(context : NSManagedObjectContext) {
self.moc = context
let request = NSFetchRequest<TimerEntity>(entityName: "TimerEntity")
do{
let result = try moc.fetch(request)
timerEntity_0 = result[0]
timerEntity_1 = result[1]
timerEntity_2 = result[2]
}
catch let error as NSError{
print("Could not fetch.\(error.userInfo)")
}
}
func provideNameOptionsCollection(for intent: ConfigurationIntent, searchTerm: String?, with completion: @escaping (INObjectCollection<NSString>?, Error?) -> Void) {
let nameIdentifiers:[NSString] = [
NSString(string: timerEntity_0?.task ?? "default"),
NSString(string: timerEntity_1?.task ?? "default"),
NSString(string: timerEntity_2?.task ?? "default")
// "meeting",
// "cooking",
// "shoping"
]
let allNameIdentifiers = INObjectCollection(items: nameIdentifiers)
completion(allNameIdentifiers,nil)
}
override func handler(for intent: INIntent) -> Any {
return self
}
}
import WidgetKit
import SwiftUI
import CoreData
import Intents
class IntentHandler: INExtension, ConfigurationIntentHandling {
var moc = PersistenceController.shared.managedObjectContext
var timerEntity_0:TimerEntity?
var timerEntity_1:TimerEntity?
var timerEntity_2:TimerEntity?
func provideNameOptionsCollection(for intent: ConfigurationIntent, searchTerm: String?, with completion: @escaping (INObjectCollection<NSString>?, Error?) -> Void) {
let request = NSFetchRequest<TimerEntity>(entityName: "TimerEntity")
do{
let result = try moc.fetch(request)
timerEntity_0 = result[0]
timerEntity_1 = result[1]
timerEntity_2 = result[2]
}
catch let error as NSError{
print("Could not fetch.\(error.userInfo)")
}
let nameIdentifiers:[NSString] = [
NSString(string: timerEntity_0?.task ?? "default"),
NSString(string: timerEntity_1?.task ?? "default"),
NSString(string: timerEntity_2?.task ?? "default")
// "meeting",
// "cooking",
// "shoping"
]
let allNameIdentifiers = INObjectCollection(items: nameIdentifiers)
completion(allNameIdentifiers,nil)
}
override func handler(for intent: INIntent) -> Any {
return self
}
}
导入WidgetKit
导入快捷键
导入CoreData
进口意向
类IntentHandler:不精确、配置增强{
var moc=PersistenceController.shared.managedObjectContext
var timerenty_0:timerenty?
var timerEntity_1:timerEntity?
var TimeRenty_2:TimeRenty?
init(上下文:NSManagedObjectContext){
self.moc=上下文
let request=NSFetchRequest(entityName:“TimeRenty”)
做{
let result=尝试moc.fetch(请求)
TimeRenty_0=结果[0]
TimeRenty_1=结果[1]
TimeRenty_2=结果[2]
}
将let错误捕获为NSError{
打印(“无法获取.\(错误.userInfo)”)
}
}
func ProvideNameOptionCollection(用于intent:configurationcontent,searchTerm:String?,完成:@escaping(INObjectCollection?,Error?)->Void){
让nameIdentifiers:[NSString]=[
NSString(字符串:timerenty_0?.task???“默认值”),
NSString(字符串:timerenty_1?.task???“默认值”),
NSString(字符串:timerenty_2?.task???“默认”)
//“会议”,
//“烹饪”,
//“购物”
]
让allNameIdentifiers=INObjectCollection(项:nameIdentifiers)
完成(allNameIdentifiers,无)
}
重写func处理程序(用于intent:INIntent)->Any{
回归自我
}
}
斯威夫特
import WidgetKit
import SwiftUI
import Intents
struct Provider: IntentTimelineProvider {
typealias Intent = ConfigurationIntent
func placeholder(in context: Context) -> SimpleEntry {
SimpleEntry(date: Date(), configuration: ConfigurationIntent(), name: "")
}
func getSnapshot(for configuration: ConfigurationIntent, in context: Context, completion: @escaping (SimpleEntry) -> ()) {
let entry = SimpleEntry(date: Date(), configuration: configuration, name: "")
completion(entry)
}
func getTimeline(for configuration: ConfigurationIntent, in context: Context, completion: @escaping (Timeline<Entry>) -> ()) {
var entries: [SimpleEntry] = []
// Generate a timeline consisting of five entries an hour apart, starting from the current date.
let currentDate = Date()
for hourOffset in 0 ..< 5 {
let entryDate = Calendar.current.date(byAdding: .hour, value: hourOffset, to: currentDate)!
let entry = SimpleEntry(date: entryDate, configuration: configuration, name: configuration.Name ?? "")
entries.append(entry)
}
let timeline = Timeline(entries: entries, policy: .atEnd)
completion(timeline)
}
}
struct SimpleEntry: TimelineEntry {
let date: Date
let configuration: ConfigurationIntent
var name:String
}
struct TimerIntentWidgetEntryView : View {
var entry: Provider.Entry
var body: some View {
Text(entry.name)
.font(.title)
Text(entry.date, style: .time)
}
}
@main
struct TimerIntentWidget: Widget {
let kind: String = "TimerIntentWidget"
var body: some WidgetConfiguration {
IntentConfiguration(kind: kind, intent: ConfigurationIntent.self, provider: Provider()) { entry in
TimerIntentWidgetEntryView(entry: entry)
}
.configurationDisplayName("My Widget")
.description("This is an example widget.")
}
}
导入WidgetKit
导入快捷键
进口意向
结构提供程序:IntentTimelineProvider{
类型别名意图=配置内容
func占位符(在上下文中:context)->SimpleEntry{
SimpleEntry(日期:date(),配置:ConfigurationContent(),名称:“”)
}
func getSnapshot(对于配置:configurationcontent,在上下文:context中,完成:@escaping(SimpleEntry)->()){
let entry=SimpleEntry(日期:date(),配置:configuration,名称:“”)
完成(进入)
}
func getTimeline(对于配置:configurationcontent,在上下文:context中,完成:@escaping(Timeline)->()){
变量项:[SimpleEntry]=[]
//从当前日期开始,每隔一小时生成由五个条目组成的时间线。
让currentDate=Date()
对于0..<5中的Hourofset{
让entryDate=Calendar.current.date(通过添加:.hour,值:hourofset,to:currentDate)!
let entry=SimpleEntry(日期:entryDate,配置:configuration,名称:configuration.name??)
条目。追加(条目)
}
let timeline=timeline(条目:条目,策略:.atEnd)
完成(时间表)
}
}
结构SimpleEntry:TimelineEntry{
日期:日期
let配置:配置内容
变量名称:String
}
结构TimerIntentWidgetEntryView:视图{
var条目:Provider.entry
var body:一些观点{
文本(entry.name)
.font(.title)
文本(entry.date,style.time)
}
}
@主要
struct TimerIntentWidget:Widget{
let kind:String=“timerintenwidget”
变量主体:一些WidgetConfiguration{
IntentConfiguration(种类:种类,意图:ConfigurationContent.self,提供程序:提供程序()){中的条目
TimerIntentWidgetEntryView(条目:条目)
}
.configurationDisplayName(“我的小部件”)
.description(“这是一个示例小部件”)
}
}
tWidget.intentdefinition
Xcode:12.0.1版 iOS:14.0
生命周期:SwiftUI应用程序我可以使用从
CoreData
获取数据,在小部件中显示一个列表,如下代码所示:
斯威夫特
import WidgetKit
import SwiftUI
import CoreData
import Intents
class IntentHandler: INExtension, ConfigurationIntentHandling {
var moc = PersistenceController.shared.managedObjectContext
var timerEntity_0:TimerEntity?
var timerEntity_1:TimerEntity?
var timerEntity_2:TimerEntity?
init(context : NSManagedObjectContext) {
self.moc = context
let request = NSFetchRequest<TimerEntity>(entityName: "TimerEntity")
do{
let result = try moc.fetch(request)
timerEntity_0 = result[0]
timerEntity_1 = result[1]
timerEntity_2 = result[2]
}
catch let error as NSError{
print("Could not fetch.\(error.userInfo)")
}
}
func provideNameOptionsCollection(for intent: ConfigurationIntent, searchTerm: String?, with completion: @escaping (INObjectCollection<NSString>?, Error?) -> Void) {
let nameIdentifiers:[NSString] = [
NSString(string: timerEntity_0?.task ?? "default"),
NSString(string: timerEntity_1?.task ?? "default"),
NSString(string: timerEntity_2?.task ?? "default")
// "meeting",
// "cooking",
// "shoping"
]
let allNameIdentifiers = INObjectCollection(items: nameIdentifiers)
completion(allNameIdentifiers,nil)
}
override func handler(for intent: INIntent) -> Any {
return self
}
}
import WidgetKit
import SwiftUI
import CoreData
import Intents
class IntentHandler: INExtension, ConfigurationIntentHandling {
var moc = PersistenceController.shared.managedObjectContext
var timerEntity_0:TimerEntity?
var timerEntity_1:TimerEntity?
var timerEntity_2:TimerEntity?
func provideNameOptionsCollection(for intent: ConfigurationIntent, searchTerm: String?, with completion: @escaping (INObjectCollection<NSString>?, Error?) -> Void) {
let request = NSFetchRequest<TimerEntity>(entityName: "TimerEntity")
do{
let result = try moc.fetch(request)
timerEntity_0 = result[0]
timerEntity_1 = result[1]
timerEntity_2 = result[2]
}
catch let error as NSError{
print("Could not fetch.\(error.userInfo)")
}
let nameIdentifiers:[NSString] = [
NSString(string: timerEntity_0?.task ?? "default"),
NSString(string: timerEntity_1?.task ?? "default"),
NSString(string: timerEntity_2?.task ?? "default")
// "meeting",
// "cooking",
// "shoping"
]
let allNameIdentifiers = INObjectCollection(items: nameIdentifiers)
completion(allNameIdentifiers,nil)
}
override func handler(for intent: INIntent) -> Any {
return self
}
}
导入WidgetKit
导入快捷键
导入CoreData
进口意向
类IntentHandler:不精确、配置增强{
var moc=PersistenceController.shared.managedObjectContext
var timerenty_0:timerenty?
var timerEntity_1:timerEntity?
var TimeRenty_2:TimeRenty?
func ProvideNameOptionCollection(用于intent:configurationcontent,searchTerm:String?,完成:@escaping(INObjectCollection?,Error?)->Void){
let request=NSFetchRequest(entityName:“TimeRenty”)
做{
let result=尝试moc.fetch(请求)
TimeRenty_0=结果[0]
TimeRenty_1=结果[1]
TimeRenty_2=结果[2]
}
将let错误捕获为NSError{
打印(“无法获取.\(错误.userInfo)”)
}
让nameIdentifiers:[NSString]=[
NSString(字符串:timerenty_0?.task???“默认值”),
NSString(字符串:timerenty_1?.task???“默认值”),
NSString(字符串:timerenty_2?.task???“默认”)
//“会议”,
//“烹饪”,
//“购物”
]
让allNameIdentifiers=INObjectCollection(项:nameIdentifiers)
完成(allNameIdentifiers,无)
}
重写func处理程序(用于intent:INIntent)->Any{
回归自我
}
}
我肯定错过了什么,我尝试了各种各样的方法,但我的抓取不起作用,充其量我只是得到了一个旋转的轮子好长一段时间。我需要创建一个数组并存储在一个共享组文件夹中,当应用程序打开和关闭时,它会更新,我们用于动态选择列表。