Widget Extention开发笔记

第一步创建 小组件

 

这里创建的名字 叫nytty,样板代码如下

这里对UI进行改造

并且将刷新时间改为1s

struct Provider: IntentTimelineProvider {
    // 小组件的占位样式
    func placeholder(in context: Context) -> SimpleEntry {
        SimpleEntry(date: Date(), configuration: ConfigurationIntent())
    }

    //小组件的屏幕快照
    func getSnapshot(for configuration: ConfigurationIntent, in context: Context, completion: @escaping (SimpleEntry) -> ()) {
        let entry = SimpleEntry(date: Date(), configuration: configuration)
        completion(entry)
    }

    //设置时间线,简单理解就是生成屏幕快照的时间规则
    func getTimeline(for configuration: ConfigurationIntent, in context: Context, completion: @escaping (Timeline) -> ()) {
        var entries: [SimpleEntry] = []

        // Generate a timeline consisting of five entries an hour apart, starting from the current date.
        //以下代码以小时间隔生成4个时间点的快照,对应四个小时的时间
        // 我们稍作修改,让他显示每一分钟的时间
        let currentDate = Date()
        for secondOffset in 0 ..< 60 {
            let entryDate = Calendar.current.date(byAdding: .second, value: secondOffset, to: currentDate)!
            let entry = SimpleEntry(date: entryDate, configuration: configuration)
            entries.append(entry)
        }

        let timeline = Timeline(entries: entries, policy: .atEnd)
        completion(timeline)
    }
}

 那么在我们的手机桌面这个时间就会 1s刷新一次

WidgetBundle 实现自定义多个小组件

/**
 让小组件展示两种布局样式的组件
 */

@main
struct MyWidgetGroup: WidgetBundle{

    @WidgetBundleBuilder
    var body:some Widget{
        TimerWidget1()
        TimerWidget2()
    }
}

struct TimerWidget1: Widget {
    let kind: String = "eytty"

    //从模拟器可以看出,三种尺寸的小组件都是这个样式
    //那么如何让
    var body: some WidgetConfiguration {
        IntentConfiguration(kind: kind, intent: ConfigurationIntent.self, provider: TimeWidgetProvider()) { entry in
            TimeWidgetEntryView(entry: entry)
        }
        //这里自定义选择面板的标题和介绍
        .configurationDisplayName("NextSpace Widget")
        .description("This is an flowus widget.")
        //设置适配的小组件类型  .supportedFamilies([.systemSmall]) 这样就只有最小模式了
        .supportedFamilies([.systemSmall])
    }
}

struct TimerWidget2: Widget {
    let kind: String = "eytty"

    //从模拟器可以看出,三种尺寸的小组件都是这个样式
    //那么如何让
    var body: some WidgetConfiguration {
        IntentConfiguration(kind: kind, intent: ConfigurationIntent.self, provider: TimeWidgetProvider()) { entry in
            TimeWidgetEntryView(entry: entry)
        }
        //这里自定义选择面板的标题和介绍
        .configurationDisplayName("Flowus Widget")
        .description("This is an test widget.")
        //设置适配的小组件类型  .supportedFamilies([.systemSmall]) 这样就只有最小模式了
        .supportedFamilies([.systemMedium])
    }
}