RickAi/LearnAndroidCustomViewTheHardWay

收集热门开源自定义View并标明涉及的相关知识点

LearnAndroidCustomViewTheHardWay

• HorizontalWheelView

  • onMeasure, MeasureSpec
  • onDraw, Canvas, Paint
  • GestureDetector
  • ValueAnimator
  • onSaveInstanceState/ onRestoreInstanceState

• Android自绘动画实现与优化实战——以Tencent OS录音机波形动画为实例

  • Canvas, Path
  • Paint, LinearGradient, PorterDuffXfermode
  • 动画优化：降低分辨率, 减少实时计算量, 减少内存分配次数

• 自定义控件三部曲之绘图篇（十五）——QQ红点拖动删除效果实现（基本原理篇）

  • saveLayer图层
  • Path贝塞尔曲线
  • onTouchEvent
  • dispatchDraw
  • Rect

• HeZaiJin/SlantedTextView

  • Paint, PorterDuff, Paint.FontMetrics
  • Canvas
  • Rect, RectF
  • TypedArray

• MostafaGazar/CustomShapeImageView

  • Paint, PorterDuffXfermode
  • Bitmap
  • WeakReference
  • Drawable

• ChadCSong/ShineButton

• tyrantgit/ExplosionField