Habit Tracker App in Rust egui — Grid, Checkboxes & CRUD | Learn egui Ep29

Build a habit tracker app in Rust using egui! In this episode, we create a weekly habit tracker with a striped grid layout, toggle buttons for each day, streak counting with color-coded highlights, completion stats with percentages, and full CRUD with add/delete functionality. Student code: https://github.com/GoCelesteAI/egui_habit_tracker What You'll Learn: - Grid::new() with .striped(true) for alternating row backgrounds - Button::new().fill() with Color32 for green/gray toggle buttons - Streak calculation using .iter().rev().take_while() - Completion counting with .iter().filter() - TopBottomPanel::top for header with stats percentage - TopBottomPanel::bottom for the add-habit input form - TextEdit::singleline with add_sized for text input - add_enabled for conditional button activation - RichText::new().strong() for bold header labels - Color-coded streak display (gold/green/gray thresholds) - Option deferred removal pattern for safe deletion - Vec with default sample data - Neo-tree file browsing in a Rust project This is Episode 29 of the "Learn egui in Neovim" series — 36 episodes teaching Rust GUI development with egui, all coded in Neovim with Neo-tree. Chapters: 0:00 Intro 0:12 What We're Building 0:22 Preview: Key Concepts 0:54 Create Project & Dependencies 1:30 main.rs — Window Setup 2:30 app.rs — Constants & Habit Struct 3:30 Habit::new Constructor 4:00 streak() — Reverse Iterator Count 4:45 completed() — Filter Count 5:15 MyApp Struct & Default 6:00 eframe::App — Header Panel 7:00 Bottom Panel — Add Habit Form 8:00 Central Panel — Empty State 8:30 Grid Header Row 9:00 Habit Rows — Day Toggle Buttons 10:00 Completion & Streak Display 10:45 Delete Button & Deferred Removal 11:15 Save & Review Code 11:45 cargo build 12:15 Neo-tree Browse 12:45 App Demo 13:45 Recap 14:25 Next Episode Tags: rust, egui, habit tracker, gui, tutorial, neovim, neo-tree, eframe, grid, checkbox, streak, crud, color32, richtext, topbottompanel, textedit, add_enabled, button, fill, iterator, filter, take_while, vec, coding, programming, learn rust, rust gui, desktop app Hashtags: #rust #egui #habittracker #gui #neovim #rustlang #coding #tutorial