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Sportwatch Productivity Timer

ProductivityTimer is a lightweight HarmonyOS Lite Wearable application designed to help users manage tasks and stay focused through a simple countdown timer experience.

The app includes two main screens: a task list and a timer screen. The task list shows activities that may need time tracking, such as meetings or study sessions, and tapping on any item opens the timer. The timer screen starts a 30-minute countdown, displays the remaining time with a progress bar, and lets the user start, pause, or reset the timer. The watch vibrates once when 30 seconds remain and again when the countdown finishes.

Preview

Use Cases

• Select a task from the list to open the timer screen.

• Begin a 30-minute countdown using the Start button.

• View time decreasing in MM:SS format while the progress bar updates dynamically.

• Receive a vibration alert when 30 seconds remain.

• Use Pause to stop and Start to resume from the same point.

• Use Reset to restore the timer to its default value (30:00).

• When the timer reaches zero, a short vibration notifies task completion.

Technology

Stack

Languages: Javascript

Frameworks: HarmonyOS SDK 5.0.0(12) - 5.1.0(18)

Tools: DevEco Studio Vers 5.1.1.830

Libraries: @system.vibrator, @system.router

Required Permissions

• ohos.permission.VIBRATE

Directory Structure

ProductivityTimer/
│
├── entry/
│   └── src/
│       └── main/
│           ├── js/
│           │   └── MainAbility/
│           │       ├── app.js                    # Application lifecycle
│           │       └── pages/
│           │           ├── index/                # Task list screen
│           │           │   ├── index.css
│           │           │   ├── index.hml
│           │           │   └── index.js
│           │           ├── timer/                # Countdown timer screen
│           │           │   ├── timer.css 
│           │           │   ├── timer.hml 
│           │           │   └── timer.js 
│           ├── resources/
│           │   └── base/
│           │       ├── element/
│           │       │   └── string.json           # Resource strings
│           │       └── media/
│           └── config.json                       # Entry configuration file

Constraints and Restrictions

Supported Device

• Huawei Sport (Lite) Watch GT 4/5/6
• Huawei Sport (Lite) GT4/5 Pro
• Huawei Sport (Lite) Fit 3/4
• Huawei Sport (Lite) D2
• Huawei Sport (Lite) Ultimate

License

Sportwatch Productivity Timer is distributed under the terms of the MIT License.

See the LICENSE for more information.