系列鸿蒙 HarmonyOS 6.1 新特性实战 · 第 36 篇Progress 组件支持 5 种不同的视觉类型从线形到环形再到胶囊形配合定时器可实现丝滑的进度动画。本篇完整演示所有类型并给出通用的进度动画模式和生命周期清理最佳实践。运行效果初始状态展示 5 种进度条类型进度 0%点击“开始演示“后进度动画进行中一、Progress 5 种类型// Linear 线形最常用适合页面顶部加载进度 Progress({ value: 60, total: 100, type: ProgressType.Linear }) .width(100%).height(8) .color(#0066ff).backgroundColor(#e0e8ff) // Ring 环形适合圆形 Loading 指示 Progress({ value: 60, total: 100, type: ProgressType.Ring }) .width(80).height(80) .color(#0066ff).backgroundColor(#e0e8ff) .style({ strokeWidth: 8 }) // Eclipse 月食形视觉特殊用于特定场景 Progress({ value: 60, total: 100, type: ProgressType.Eclipse }) .width(80).height(80) .color(#8e44ad).backgroundColor(#f0e0ff) // ScaleRing 刻度环形带刻度线精密进度 Progress({ value: 60, total: 100, type: ProgressType.ScaleRing }) .width(80).height(80) .color(#e67e22).backgroundColor(#fff3e0) .style({ strokeWidth: 8, scaleCount: 20, scaleWidth: 3 }) // Capsule 胶囊形适合下载进度、文件传输 Progress({ value: 60, total: 100, type: ProgressType.Capsule }) .width(100%).height(32) .color(#27ae60).backgroundColor(#e0ffe8)二、Ring Stack 显示百分比数字环形进度条中间叠加文字是常见需求用Stack实现Stack() { Progress({ value: this.progress, total: 100, type: ProgressType.Ring }) .width(80).height(80) .color(#e74c3c).backgroundColor(#ffe0e0) .style({ strokeWidth: 8 }) Text(this.progress.toString() %) .fontSize(14).fontColor(#e74c3c).fontWeight(FontWeight.Bold) }三、进度动画setInterval aboutToDisappear进度动画核心是用setInterval定期更新State页面销毁时必须清理定时器State progress: number 0 State running: boolean false private timer: number -1 // 必须在 aboutToDisappear 清理定时器 aboutToDisappear(): void { if (this.timer 0) { clearInterval(this.timer) } } startProgress(): void { this.progress 0 this.running true this.timer setInterval(() { this.progress 2 if (this.progress 100) { this.progress 100 this.running false clearInterval(this.timer) this.timer -1 } }, 60) // 每 60ms 2%约 3 秒完成 }为什么timer初始值用 -1避免用0导致与合法 timer ID 冲突部分系统会返回 0 作为首个 timer ID用 -1 作为“未启动“哨兵值更安全。四、style 属性.style()支持的参数因类型而异// Linear / Capsule .style({ strokeWidth: 14, enableSmoothEffect: true }) // Ring .style({ strokeWidth: 8 }) // ScaleRing .style({ strokeWidth: 8, scaleCount: 20, scaleWidth: 3 })enableSmoothEffect: true开启线形进度条的平滑动效默认开启。完整代码Entry Component struct Index { State progress: number 0 State running: boolean false private timer: number -1 aboutToDisappear(): void { if (this.timer 0) { clearInterval(this.timer) } } startProgress(): void { this.progress 0 this.running true this.timer setInterval(() { this.progress 2 if (this.progress 100) { this.progress 100 this.running false clearInterval(this.timer) this.timer -1 } }, 60) } build() { Scroll() { Column({ space: 20 }) { Text(Progress 全类型进度条) .fontSize(22).fontWeight(FontWeight.Bold).fontColor(#1a1a1a) Text(当前进度 this.progress.toString() %) .fontSize(16).fontColor(#0066ff).fontWeight(FontWeight.Bold) Button(this.running ? 进行中... : 开始演示) .width(100%).height(48).backgroundColor(this.running ? #aaa : #0066ff).fontColor(#fff) .enabled(!this.running).onClick(() { this.startProgress() }) // Linear Column({ space: 8 }) { Text(一、Linear 线形).fontSize(15).fontWeight(FontWeight.Bold).fontColor(#333) Progress({ value: this.progress, total: 100, type: ProgressType.Linear }) .width(100%).height(8).color(#0066ff).backgroundColor(#e0e8ff) Progress({ value: this.progress, total: 100, type: ProgressType.Linear }) .width(100%).height(14).color(#27ae60).backgroundColor(#e0ffe8) .style({ strokeWidth: 14, enableSmoothEffect: true }) } .padding(12).backgroundColor(#fff).borderRadius(8).width(100%) .border({ width: 1, color: #e0e0e0 }).alignItems(HorizontalAlign.Start) // Ring Column({ space: 8 }) { Text(二、Ring 环形).fontSize(15).fontWeight(FontWeight.Bold).fontColor(#333) Row({ space: 24 }) { Column({ space: 4 }) { Progress({ value: this.progress, total: 100, type: ProgressType.Ring }) .width(80).height(80).color(#0066ff).backgroundColor(#e0e8ff) .style({ strokeWidth: 8 }) Text(默认).fontSize(12).fontColor(#666) } Column({ space: 4 }) { Stack() { Progress({ value: this.progress, total: 100, type: ProgressType.Ring }) .width(80).height(80).color(#e74c3c).backgroundColor(#ffe0e0) .style({ strokeWidth: 8 }) Text(this.progress.toString() %) .fontSize(14).fontColor(#e74c3c).fontWeight(FontWeight.Bold) } Text(叠加文字).fontSize(12).fontColor(#666) } } } .padding(12).backgroundColor(#fff).borderRadius(8).width(100%) .border({ width: 1, color: #e0e0e0 }).alignItems(HorizontalAlign.Start) // Eclipse ScaleRing Column({ space: 8 }) { Text(三、Eclipse 月食 / ScaleRing 刻度环).fontSize(15).fontWeight(FontWeight.Bold).fontColor(#333) Row({ space: 24 }) { Column({ space: 4 }) { Progress({ value: this.progress, total: 100, type: ProgressType.Eclipse }) .width(80).height(80).color(#8e44ad).backgroundColor(#f0e0ff) Text(Eclipse).fontSize(12).fontColor(#666) } Column({ space: 4 }) { Progress({ value: this.progress, total: 100, type: ProgressType.ScaleRing }) .width(80).height(80).color(#e67e22).backgroundColor(#fff3e0) .style({ strokeWidth: 8, scaleCount: 20, scaleWidth: 3 }) Text(ScaleRing).fontSize(12).fontColor(#666) } } } .padding(12).backgroundColor(#fff).borderRadius(8).width(100%) .border({ width: 1, color: #e0e0e0 }).alignItems(HorizontalAlign.Start) // Capsule Column({ space: 8 }) { Text(四、Capsule 胶囊形).fontSize(15).fontWeight(FontWeight.Bold).fontColor(#333) Progress({ value: this.progress, total: 100, type: ProgressType.Capsule }) .width(100%).height(32).color(#27ae60).backgroundColor(#e0ffe8) } .padding(12).backgroundColor(#fff).borderRadius(8).width(100%) .border({ width: 1, color: #e0e0e0 }).alignItems(HorizontalAlign.Start) } .padding(20).width(100%) } .width(100%).height(100%).backgroundColor(#f5f5f5) } }API 速查属性/方法说明Progress({ value, total, type })创建进度条.color(#0066ff)进度颜色.backgroundColor(#e0e8ff)轨道背景色.style({ strokeWidth, ... })样式配置按类型不同ProgressType.Linear线形ProgressType.Ring环形ProgressType.Eclipse月食形ProgressType.ScaleRing刻度环形ProgressType.Capsule胶囊形小结Linear 是最通用的加载进度、下载进度首选简洁明了Ring Stack 圆形进度用 Stack 叠加 Text 显示百分比是标准做法定时器必须在 aboutToDisappear 清理否则页面离开后定时器仍在跑浪费资源可能崩溃timer 初始值用 -1 而非 00 可能是有效 timer ID用哨兵值 -1 避免误清理上一篇Slider 与 Rating 实战 | 下一篇DatePicker / TimePicker 日期时间选择器完全指南