aaaa-zhen’s gists

aaaa-zhen / gist:dc83036a9319d050b69ab376bd11752f

Created February 2, 2026 06:27

picker number

	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8" />
	<meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=no">
	<title>Picker 教程 - 分步学习</title>
	<style>
	* { margin: 0; padding: 0; box-sizing: border-box; }
	body {
	font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', sans-serif;

aaaa-zhen / gist:4f19e9f951dabd2efbeba71c7f0cc5a5

Created June 5, 2025 03:16

Spring and velocity animation

	// 定义角落数据类
	private data class Corner(val x: Float, val y: Float)

	// 智能计算目标角落的函数
	private fun calculateTargetCorner(
	currentX: Float,
	currentY: Float,
	velocityX: Float,
	velocityY: Float,
	pipWidth: Float,

aaaa-zhen / gist:3e7118e0db5a73cad856295c8012c82f

Created May 17, 2025 05:16

jetpack compose live camera

	package com.yourpackage // 替换成你的包名

	import android.Manifest
	import android.content.Context
	import android.graphics.Bitmap
	import android.graphics.BitmapFactory
	import android.graphics.Matrix
	import android.util.Log
	import android.view.ViewGroup
	import androidx.camera.core.*

aaaa-zhen / gist:48023129a5e39e808b68028a30f51ed2

Created April 13, 2025 10:56

Spring animation with Velocity

	@Preview
	@Composable
	fun TextSpringWithVelocity() {
	val animatedY = remember { Animatable(0f) }

	// Spring animation spec
	val springSpec = spring<Float>(
	dampingRatio = 0.5f, // You can adjust the damping ratio for bounce
	stiffness = 200f // You can adjust stiffness for speed of movement
	)

aaaa-zhen / gist:6eaec83c34e23ee13f688b2570b05b5f

Created February 21, 2025 10:45

Fling slider

	@Preview
	@Composable
	fun PreviewColorSlider() {

	Box(modifier = Modifier
	.fillMaxSize()
	.background(Color.Black))
	val colors = listOf(Color.White.copy(0.4f), Color.White,Color.White.copy(0.4f), Color.White,Color.White.copy(0.4f), Color.White,Color.White.copy(0.4f), Color.White,Color.White.copy(0.4f), Color.White,Color.White.copy(0.4f), Color.White,Color.White.copy(0.4f), Color.White,Color.White.copy(0.4f), Color.White,Color.White.copy(0.4f), Color.White,Color.White.copy(0.4f), Color.White,Color.White.copy(0.4f), Color.White,Color.White.copy(0.4f), Color.White,Color.White.copy(0.4f), Color.White,Color.White.copy(0.4f), Color.White,Color.White.copy(0.4f), Color.White,Color.White.copy(0.4f), Color.White,Color.White.copy(0.4f), Color.White,Color.White.copy(0.4f), Color.White, )
	ColorSlider(
	modifier = Modifier

aaaa-zhen / gist:810ed538c1bdebd3d8d91ac4b1dfb8d9

Created February 21, 2025 06:25

Magnification effect in jetpack compose

	@Preview
	@Composable
	fun ListIcon() {
	val density = LocalDensity.current
	var offsetX by remember { mutableStateOf(0f) }
	var offsetY by remember { mutableStateOf(0f) }
	val circlePositions = remember { mutableStateListOf<Offset>() }
	var enlargedCircleIndex by remember { mutableStateOf(-1) }

	// 添加计算相邻缩放的函数

aaaa-zhen / gist:e67921348c5b021a14bb0d3b06e23ea6

Created December 22, 2024 14:44

Meatball

	val MetaballShader = """
	uniform float2 resolution;
	uniform shader image;
	uniform float time;

	half4 main(vec2 fragCoord) {
	float2 uv = fragCoord/resolution.xy;
	float aspect = resolution.x/resolution.y;

	float2 adjustedUV = float2(uv.x * aspect - aspect*0.5, uv.y - 0.5);

aaaa-zhen / gist:8d5b3ff42ffb89b607040e5d29ee85a6

Last active October 9, 2024 10:25

Shader with controller size

aaaa-zhen / gist:dce14db05cc73ccac4e50e17fc929ba3

Created October 9, 2024 02:42

P3 Color in Jetpack Compose

	val p3Colors = listOf(
	Color(
	red = 1.0f,
	green = 0.247f,
	blue = 0.612f,
	colorSpace = ColorSpaces.DisplayP3
	),
	Color(
	red = 0.117f,
	green = 0.251f,

aaaa-zhen / gist:c64b2e33ee77277db539135dd2915345

Created September 26, 2024 10:37

Shader Glow