LockInput

A lightweight macOS menu bar app to lock your input method and prevent accidental switching.

一个轻量级的 macOS 状态栏应用，用于锁定输入法，防止意外切换。

Features

• Lock Input Method - Lock to your preferred input method, prevent accidental switching
• Menu Bar App - Lives in the menu bar, no dock icon
• Multi-language Support - English, 简体中文, Français, Deutsch, 日本語
• Launch at Login - Optional auto-start when you log in
• Simple & Clean UI - Minimal and intuitive interface

Screenshots

Unlocked	Locked
🔓	🔒

Requirements

• macOS 26.0 or later

Installation

Option 1: Build from Source

1. Clone the repository

   git clone https://github.com/yourusername/lockinput.git
   cd lockinput

2. Open in Xcode

   open lockinput.xcodeproj

3. Build and run (Cmd + R)

Option 2: Download Release

Download the latest release from Releases page.

Usage

Basic Operations

• Left-click menu bar icon - Open the main panel
• Right-click menu bar icon - Quick actions menu
• Click an input method in the list - Switch and lock to that input method
• Lock/Unlock button - Toggle lock status

Settings

• Language - Choose interface language or follow system
• Launch at Login - Enable/disable auto-start

Building

# Switch to Xcode (if needed)
sudo xcode-select -s /Applications/Xcode.app/Contents/Developer

# Build Release version
xcodebuild -project lockinput.xcodeproj \
           -scheme lockinput \
           -configuration Release \
           -derivedDataPath build \
           clean build

# Find the app at: build/Build/Products/Release/lockinput.app

Project Structure

lockinput/
├── lockinputApp.swift        # App entry point & menu bar setup
├── ContentView.swift         # Main UI
├── InputMethodManager.swift  # Input method control logic
├── LanguageManager.swift     # Localization manager
├── Info.plist               # App configuration
├── Assets.xcassets/         # App icons and assets
└── Resources/
    ├── en.lproj/            # English
    ├── zh-Hans.lproj/       # Simplified Chinese
    ├── fr.lproj/            # French
    ├── de.lproj/            # German
    └── ja.lproj/            # Japanese

Localization

The app supports the following languages:

Language	Code
English	en
简体中文	zh-Hans
Français	fr
Deutsch	de
日本語	ja

To add a new language:

1. Create a new .lproj folder in Resources/
2. Copy Localizable.strings from en.lproj
3. Translate the strings
4. Add the language code to knownRegions in project.pbxproj
5. Add the language to AppLanguage enum in LanguageManager.swift

License

MIT License

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.