メモ：ViewやViewGroupのonLayoutやonMeasureの呼ばれる順番

FrameLayout中にViewを１つだけ入れた時の呼び出し順序の確認。
Nexus 5でonMeasure、onLayout、layoutメソッドの始めと終わりにログを仕込んだ時の結果。

• MyFrameLayout: begin:onMeasure(widthMeasureSpec=1073742904,heightMeasureSpec=1073743216,wMode=1073741824,hMode=1073741824,wSize=1080,hSize=1392)
  • MyView: begin:onMeasure(widthMeasureSpec=-2147482664,heightMeasureSpec=-2147482352,wMode=-2147483648,hMode=-2147483648,wSize=984,hSize=1296)
  • MyView: end:onMeasure
• MyFrameLayout: end:onMeasure
• MyFrameLayout: begin:onMeasure(widthMeasureSpec=1073742904,heightMeasureSpec=1073743360,wMode=1073741824,hMode=1073741824,wSize=1080,hSize=1536)
  • MyView: begin:onMeasure(widthMeasureSpec=-2147482664,heightMeasureSpec=-2147482208,wMode=-2147483648,hMode=-2147483648,wSize=984,hSize=1440)
  • MyView: end:onMeasure
• MyFrameLayout: end:onMeasure
• MyFrameLayout: begin:onLayout(changed=true,left=0,top=0,right=1080,bottom=1536)
  • MyView: begin:layout(left=48,top=48,right=1032,bottom=1488)
    • MyView: begin:onLayout(changed=true,left=48,top=48,right=1032,bottom=1488)
    • MyView: end:onLayout
  • MyView: end:layout
• MyFrameLayout: end:onLayout
• MyFrameLayout: begin:onMeasure(widthMeasureSpec=1073742904,heightMeasureSpec=1073743360,wMode=1073741824,hMode=1073741824,wSize=1080,hSize=1536)
  • MyView: begin:onMeasure(widthMeasureSpec=-2147482664,heightMeasureSpec=-2147482208,wMode=-2147483648,hMode=-2147483648,wSize=984,hSize=1440)
  • MyView: end:onMeasure
• MyFrameLayout: end:onMeasure
• MyFrameLayout: begin:onLayout(changed=false,left=0,top=0,right=1080,bottom=1536)
  • MyView: begin:layout(left=48,top=48,right=1032,bottom=1488)
    • MyView: begin:onLayout(changed=false,left=48,top=48,right=1032,bottom=1488)
    • MyView: end:onLayout
  • MyView: end:layout
• MyFrameLayout: end:onLayout

モード

• AT_MOST : -2147483648 (0x80000000)
• EXACTLY : 1073741824 (0x40000000)
• UNSPECIFIED : 0