503 lines
18 KiB
Swift
503 lines
18 KiB
Swift
//
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// BackgroundIntent.swift
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// Runner
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//
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// Created by hoshizora-rin on 2024/9/19.
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//
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import SwiftUI
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import WidgetKit
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private let widgetGroupId = "group.com.zhushenwudi.lovelivemusicplayer"
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struct Provider: TimelineProvider {
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func placeholder(in context: Context) -> ExampleEntry {
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sampleEntry(family: context.family, isPreview: true)
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}
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func getSnapshot(in context: Context, completion: @escaping (ExampleEntry) -> Void) {
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// 与 Flutter 一样读 App Group；isPreview 仅用于避免 Button(intent) 把添加页打成鱼骨。
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completion(readEntry(family: context.family, isPreview: true))
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}
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func getTimeline(in context: Context, completion: @escaping (Timeline<Entry>) -> Void) {
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// 数据由主应用写入 App Group 后主动 reload；不要让单条当前时间的
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// timeline 以 .atEnd 反复申请无意义的系统刷新预算。
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completion(Timeline(entries: [readEntry(family: context.family, isPreview: false)], policy: .never))
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}
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private func readEntry(family: WidgetFamily, isPreview: Bool) -> ExampleEntry {
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let data = UserDefaults(suiteName: widgetGroupId)
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let songName = data?.string(forKey: "songName") ?? ""
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let songArtist = data?.string(forKey: "songArtist") ?? ""
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let isFavorite = data?.bool(forKey: "songFavorite") ?? false
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let isPlaying = data?.bool(forKey: "isPlaying") ?? false
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let playText = data?.string(forKey: "playText") ?? ""
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let isShutdown = data?.bool(forKey: "isShutdown") ?? true
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let bgColor = data?.string(forKey: "bgColor") ?? "255,255,255"
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return ExampleEntry(
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date: Date(),
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widgetFamily: family,
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songName: songName,
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songArtist: songArtist,
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isFavorite: isFavorite,
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isPlaying: isPlaying,
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playText: playText,
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isShutdown: isShutdown,
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bgColor: bgColor,
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isPreview: isPreview
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)
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}
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}
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private func sampleEntry(family: WidgetFamily, isPreview: Bool) -> ExampleEntry {
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ExampleEntry(
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date: Date(),
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widgetFamily: family,
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songName: "",
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songArtist: "",
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isFavorite: false,
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isPlaying: false,
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playText: "",
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isShutdown: true,
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bgColor: "255,255,255",
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isPreview: isPreview
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)
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}
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struct ExampleEntry: TimelineEntry {
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let date: Date
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let widgetFamily: WidgetFamily
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let songName: String
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let songArtist: String
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let isFavorite: Bool
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let isPlaying: Bool
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let playText: String
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let isShutdown: Bool
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let bgColor: String
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let isPreview: Bool
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}
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struct HomeWidgetExampleEntryView: View {
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var entry: Provider.Entry
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var isWhiteBackground = true
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private let actionButtonSize: CGFloat = 34
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private let transportIconSize: CGFloat = 20
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init(entry: Provider.Entry, isWhiteBackground: Bool) {
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self.entry = entry
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self.isWhiteBackground = isWhiteBackground
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}
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var body: some View {
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let canvas = familyCanvasSize
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let cdSize: CGFloat = 140
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let coverSize: CGFloat = cdSize * 0.55
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let coverAndCdDiffSize: CGFloat = (cdSize - coverSize) / 2
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let playButtonAndCdDiffSize: CGFloat = (cdSize - 34) / 2 // width:18 + padding:8x2
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let offsetX = calcCdOffsetX(entry: entry, canvas: canvas)
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let offsetY = calcCdOffsetY(entry: entry, canvas: canvas)
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let bgColor = calcBgColor(entry: entry)
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let playText = calcPlayText(entry: entry)
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ZStack {
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// 填充整个布局颜色
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if isWhiteBackground {
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Rectangle()
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.fill(
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AngularGradient(
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gradient: Gradient(
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colors: [
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Color(red: 229/255, green: 233/255, blue: 235/255),
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Color(red: 219/255, green: 223/255, blue: 225/255),
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bgColor
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]
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),
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center: .topLeading,
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angle: .degrees(180 + 45)
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)
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)
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.frame(maxWidth: .infinity, maxHeight: .infinity)
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} else {
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Rectangle()
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.fill(Color(red: 49/255, green: 49/255, blue: 49/255))
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.frame(maxWidth: .infinity, maxHeight: .infinity)
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}
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// 绘制右上角唱片
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ZStack(alignment: .topTrailing) {
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Image(isWhiteBackground ? "cd_white" : "cd_black")
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.resizable()
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.interpolation(.high)
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.scaledToFit()
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.frame(width: cdSize, height: cdSize)
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.clipped()
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.offset(x: offsetX, y: offsetY)
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if let image = loadImageFromFile() {
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Image(uiImage: image)
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.resizable()
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.interpolation(.high)
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.scaledToFit()
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.frame(width: coverSize, height: coverSize)
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.clipShape(Circle())
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.clipped()
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.offset(x: -coverAndCdDiffSize + offsetX, y: coverAndCdDiffSize + offsetY)
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}
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playButton(
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offsetX: -playButtonAndCdDiffSize + offsetX,
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offsetY: playButtonAndCdDiffSize + offsetY
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)
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}
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.contentTransition(.interpolate)
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.animation(.smooth(duration: 0.45), value: entry.isPlaying)
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// 绘制左侧一列歌曲信息
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VStack(alignment: .leading) {
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Image("logo")
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.resizable()
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.scaledToFit()
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.frame(width: 30, height: 30)
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.clipped()
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.padding(.bottom, 5)
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Spacer()
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Text(playText)
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.font(.system(size: 10))
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.bold()
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.foregroundColor(.gray)
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.frame(maxWidth: .infinity, alignment: .leading)
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.padding(.trailing, actionReservedWidth)
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.padding(.bottom, 3)
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Text(entry.songName)
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.font(.system(size: 12))
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.bold()
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.foregroundColor(lyricForeground(isPrimary: true))
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.frame(maxWidth: .infinity, alignment: .leading)
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.padding(.trailing, actionReservedWidth)
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.padding(.bottom, 2)
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Text(entry.songArtist)
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.font(.system(size: 12, weight: .light))
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.foregroundColor(.gray)
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.frame(maxWidth: .infinity, alignment: .leading)
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.padding(.trailing, actionReservedWidth)
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}
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.padding()
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VStack {
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Spacer()
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favoriteButton()
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}
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}
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.frame(maxWidth: .infinity, maxHeight: .infinity)
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.widgetURL(shutdownOpenURL)
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}
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/// 关机态点卡片打开 App；用 widgetURL 而不是全屏 Link，避免桌面白卡渲染成鱼骨。
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var shutdownOpenURL: URL? {
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if entry.isShutdown && !entry.isPreview {
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return URL(string: "llmp://")
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}
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return nil
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}
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var familyCanvasSize: CGSize {
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switch entry.widgetFamily {
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case .systemMedium:
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return CGSize(width: 338, height: 158)
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default:
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return CGSize(width: 158, height: 158)
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}
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}
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var actionReservedWidth: CGFloat {
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entry.widgetFamily == .systemMedium ? 110 : 72
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}
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/// 黑卡必须用明确 RGB，系统 `.white` 在 Widget 预览里可能被折成浅色叠在白底上，歌词会消失。
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func lyricForeground(isPrimary: Bool) -> Color {
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if isPrimary {
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return isWhiteBackground
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? Color(red: 0, green: 0, blue: 0)
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: Color(red: 1, green: 1, blue: 1)
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}
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return Color(red: 0.7, green: 0.7, blue: 0.7, opacity: 0.7)
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}
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func calcCdOffsetX(entry: ExampleEntry, canvas: CGSize) -> CGFloat {
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var offset = 0.0
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switch entry.widgetFamily {
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case .systemSmall:
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offset = (canvas.width - 70) / 2
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case .systemMedium:
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offset = (canvas.width - 152) / 2 + (entry.isPlaying ? 55 : 15)
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default:
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break
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}
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return offset
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}
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func calcCdOffsetY(entry: ExampleEntry, canvas: CGSize) -> CGFloat {
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var offset = 0.0
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switch entry.widgetFamily {
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case .systemSmall:
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offset = (70 - canvas.height) / 2
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case .systemMedium:
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offset = (152 - canvas.height) / 2 - (entry.isPlaying ? 55 : 15)
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default:
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break
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}
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return offset
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}
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func calcBgColor(entry: ExampleEntry) -> Color {
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var intColors: [Double] = [230.0, 215.0, 210.0]
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if entry.bgColor.contains(",") {
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intColors = entry.bgColor.components(separatedBy: ",").compactMap(Double.init)
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}
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return Color(
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red: Double(intColors[0]) / 255,
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green: Double(intColors[1]) / 255,
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blue: Double(intColors[2]) / 255
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)
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}
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func loadImageFromFile() -> UIImage? {
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// 没歌/关机/添加页预览都不该读 App Group 里的旧 sharedImage
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//（和 Flutter 共用 group，重装后文件还在）。
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if entry.isPreview || entry.isShutdown || entry.songName.isEmpty {
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return nil
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}
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guard let fileURL = FileManager.default.containerURL(
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forSecurityApplicationGroupIdentifier: widgetGroupId
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)?.appendingPathComponent("sharedImage.png") else { return nil }
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return UIImage(contentsOfFile: fileURL.path)
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}
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func calcPlayText(entry: ExampleEntry) -> String {
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var playTextArr: [String] = [WidgetI18n.t("playing"), WidgetI18n.t("paused")]
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if entry.playText.contains(",") {
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playTextArr = entry.playText.components(separatedBy: ",")
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}
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return entry.isPlaying ? playTextArr[0] : playTextArr[1]
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}
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@ViewBuilder
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func transportButton(assetName: String, action: String) -> some View {
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let icon = Image(assetName)
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.renderingMode(.template)
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.resizable()
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.scaledToFit()
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.foregroundColor(.white)
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.frame(width: transportIconSize, height: transportIconSize)
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.frame(width: actionButtonSize, height: actionButtonSize)
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if entry.isPreview || entry.isShutdown {
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icon
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} else if #available(iOSApplicationExtension 17, *) {
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Button(
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intent: BackgroundIntent(
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url: URL(string: "homeWidgetExample://\(action)")
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)
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) {
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icon
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}
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.buttonStyle(.plain)
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} else {
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icon
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}
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}
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@ViewBuilder
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func playButton(offsetX: CGFloat, offsetY: CGFloat) -> some View {
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let icon = Image(systemName: entry.isPlaying ? "pause.fill" : "play.fill")
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.resizable()
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.scaledToFit()
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.frame(width: 18, height: 18)
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.foregroundColor(.white)
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// 预览和关机态都不能挂 App Intent，否则桌面白卡会掉回 placeholder 鱼骨。
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if entry.isPreview || entry.isShutdown {
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icon
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.padding(8)
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.offset(x: offsetX, y: offsetY)
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} else if #available(iOSApplicationExtension 17, *) {
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Button(intent: BackgroundIntent(url: URL(string: "homeWidgetExample://toggle_play"))) {
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icon
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}
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.buttonStyle(.plain)
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.padding(8)
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.offset(x: offsetX, y: offsetY)
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}
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}
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@ViewBuilder
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func favoriteButton() -> some View {
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HStack(spacing: 8) {
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if entry.widgetFamily == .systemMedium {
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transportButton(
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assetName: "PlayerPrev",
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action: "previous"
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)
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}
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transportButton(
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assetName: "PlayerNext",
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action: "next"
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)
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favoriteControl()
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}
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.frame(maxWidth: .infinity, alignment: .bottomTrailing)
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.padding(8)
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}
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@ViewBuilder
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func favoriteControl() -> some View {
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let icon = Image(entry.isFavorite ? "FavoriteClick" : "FavoriteUnClick")
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.resizable()
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.scaledToFit()
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.frame(width: actionButtonSize, height: actionButtonSize)
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if entry.isPreview || entry.isShutdown {
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icon
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} else if #available(iOSApplicationExtension 17, *) {
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Button(intent: BackgroundIntent(url: URL(string: "homeWidgetExample://toggle_love"))) {
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icon
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}
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.buttonStyle(.plain)
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} else {
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icon
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}
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}
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}
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struct HomeWidgetExampleWhite: Widget {
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let kind = "HomeWidgetExampleWhite"
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var body: some WidgetConfiguration {
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StaticConfiguration(kind: kind, provider: Provider()) { (entry) in
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widgetRoot(entry: entry, isWhiteBackground: true)
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}
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.configurationDisplayName(WidgetI18n.t("widget_white"))
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.contentMarginsDisabled()
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.supportedFamilies([.systemSmall, .systemMedium])
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.description(WidgetI18n.t("widget_desc"))
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}
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}
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struct HomeWidgetExampleBlack: Widget {
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let kind = "HomeWidgetExampleBlack"
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var body: some WidgetConfiguration {
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StaticConfiguration(kind: kind, provider: Provider()) { (entry) in
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widgetRoot(entry: entry, isWhiteBackground: false)
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}
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.configurationDisplayName(WidgetI18n.t("widget_black"))
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.contentMarginsDisabled()
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.supportedFamilies([.systemSmall, .systemMedium])
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.description(WidgetI18n.t("widget_desc"))
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}
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}
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@ViewBuilder
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private func widgetRoot(entry: ExampleEntry, isWhiteBackground: Bool) -> some View {
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let view = HomeWidgetExampleEntryView(entry: entry, isWhiteBackground: isWhiteBackground)
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.containerBackground(for: .widget) {
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widgetContainerFill(entry: entry, isWhiteBackground: isWhiteBackground)
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}
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if entry.isPreview {
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view.unredacted()
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} else {
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view
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}
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}
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@ViewBuilder
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private func widgetContainerFill(entry: ExampleEntry, isWhiteBackground: Bool) -> some View {
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if isWhiteBackground {
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Color(red: 229/255, green: 233/255, blue: 235/255)
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} else {
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Color(red: 49/255, green: 49/255, blue: 49/255)
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}
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}
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private func sampleBgColor(_ bgColor: String) -> Color {
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var intColors: [Double] = [230.0, 215.0, 210.0]
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if bgColor.contains(",") {
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intColors = bgColor.components(separatedBy: ",").compactMap(Double.init)
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}
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return Color(
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red: Double(intColors[0]) / 255,
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green: Double(intColors[1]) / 255,
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blue: Double(intColors[2]) / 255
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)
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}
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/// Widget 扩展未链接 ComposeApp，按系统语言对齐主工程四套文案。
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private enum WidgetI18n {
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static func t(_ key: String) -> String {
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let table: [String: String]
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switch Locale.current.language.languageCode?.identifier {
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case "en":
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table = [
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"playing": "Playing",
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"paused": "Paused",
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"widget_white": "LLMP Music Widget (White)",
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"widget_black": "LLMP Music Widget (Black)",
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"widget_desc": "LoveLive! music player",
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]
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case "ja":
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table = [
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"playing": "放送中",
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"paused": "停止しました",
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"widget_white": "LLMP 音楽ウィジェット (白)",
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"widget_black": "LLMP 音楽ウィジェット (黒)",
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"widget_desc": "LoveLive!メディアプレーヤー",
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]
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case "de":
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table = [
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"playing": "Wird abgespielt",
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"paused": "Pausiert",
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"widget_white": "LLMP Musik-Widget (Weiß)",
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"widget_black": "LLMP Musik-Widget (Schwarz)",
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"widget_desc": "LoveLive! Musikplayer",
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]
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default:
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table = [
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"playing": "播放中",
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"paused": "已暂停",
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"widget_white": "LLMP 音乐组件 (白)",
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"widget_black": "LLMP 音乐组件 (黑)",
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"widget_desc": "LoveLive!媒体播放器",
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]
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}
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return table[key] ?? key
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}
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}
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#Preview(as: .systemSmall) {
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HomeWidgetExampleWhite()
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} timeline: {
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ExampleEntry(
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date: Date(),
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widgetFamily: .systemSmall,
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songName: "Song Name",
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songArtist: "Song Artist",
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isFavorite: true,
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isPlaying: true,
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playText: "playing,paused",
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isShutdown: true,
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bgColor: "255,255,255",
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isPreview: true
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)
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}
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#Preview(as: .systemMedium) {
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HomeWidgetExampleWhite()
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} timeline: {
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sampleEntry(family: .systemMedium, isPreview: true)
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}
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