Jetpack Demo

已集成

• ViewBinding
• Room
• WorkManager
  • OneTimeWorkRequest
  • PeriodicWorkRequest
• liveData+viewModel
• DrawLayout

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others

• Use Activity-alias to change app name and icon

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Custom view

• How to use bezier
• How to resolve nested view scroll clash -> to see BezierView onTouchEvent
• Fake EBookReader
• QQ msg item
• QQ DrawLayout && change MainView
• FireworkView -> Surface View draw UI not in UI-Thread
• CountDownClock
• PathMeasure -> clip path segment to draw
• NestedScrollingChild & Parent

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Note

• PathMeasure中getSegment方法 startWithMoveTo参数
  • true：下一条线段如果起点不在上一条的终点 就先调用moveTo移动到下一条线段的起点再继续绘制。能按照原先的需求绘制
  • false:把上一条线段的终点当作这条线段的起点绘制 线段就会改变
  • 如：

   mPath.moveTo(10,10);
   mPath.lineTo(10,300);
   mPath.moveTo(300,10);
   mPath.lineTo(300,300);

  画出来的效果应该是两条竖线 如果第二条线段用pathMeasure截取的时候startWithMoveTo参数设置false 就会变成 L