Build a classic Snake game for Android

Create a custom game manager by extending surface view and implementing surface holder callbacks to draw and animate the snake on screen within the main activity.

Add bottom control bar in activity_main as a horizontal layout with four image views for left, right, up, and down, plus a top score and a hidden game over message.

Finish the layout by wiring the arrow controls to main activity, implementing five on up, on down, on left, on right, and on game start handlers, then test in emulator.

Create an apple as a point on the game board, generate a random, snake-free position, and draw it in green on the canvas with paint.

Initialize the snake with a single random point, clear the game, then draw the snake on the canvas by iterating over its list of points and painting each point blue.

Learn to build a simple Android game engine with a background thread that updates the game manager at a set fps, using a SurfaceHolder to draw on the canvas.

Instantiate the game engine in the game manager, start it on a background thread during surface initialization, and render apples at three frames per second.

Define a direction enum and direction states to guide snake movement from spawn to the edge, and implement a move function with inputs that update direction only when not reversing.

Update the snake’s position by moving each body segment toward the previous one and advancing the head according to the current direction, as called by the game engine.

Make the snake grow by one when it eats the apple, generate a new apple, and increase game speed with each apple in the update function.

Implement collision checks to prevent the snake from leaving board or colliding with itself using a checkCollision function, and update the game over UI on the main thread when triggered.

Restart the Android snake game by tapping a restart control, reset the game over flag, and reinitialize the game state to regenerate snake and apple positions.

Initialize a zero score at game start and update the score in the main activity when the snake eats an apple, increasing speed and resetting to zero on restart.

Fix two small bugs in the android snake game: reset the move direction to left on new games and reset the target FPL by calling the game engine reset.

Add sounds for start, apple and point, and game over by importing raw audio files into the project, creating media players, and triggering them at the corresponding events.

Conclude the course by reflecting on building a snake game for Android, inviting feedback and bug fixes, and encouraging learners to enjoy the process.