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我有一個帶有框架（4,8），（13,13）的子視圖UIbutton。iOS UIButton在框架外接收觸摸，但不在框架內
觸摸A在位置（4,16）相對於superview，但被髮送到超級視圖，即使它在按鈕範圍內。在窗口座標中，這是（49,131）。
觸摸B發生一個像素，窗口座標爲（48,131），但發送到子視圖按鈕，即使它超出邊界。該視圖報告UIButton中的（-1,7）位置。
觸摸甲
<UITouch: 0x7b2ddeb0> phase: Ended tap count: 1
window: <DebugWindow: 0x791357f0; baseClass = UIWindow; frame = (0 0; 320 480); layer = <UIWindowLayer: 0x791358d0>>
view: <QueueOverlayCellView: 0x7b1ca320; frame = (2 2; 269 30); tag = 1; layer = <CALayer: 0x7b1ca3a0>>
location in window: {49, 131} previous location in window: {49, 131}
location in view: {4, 16} previous location in view: {4, 16}
觸摸乙
<UITouch: 0x7b442e90> phase: Ended tap count: 1
window: <DebugWindow: 0x791357f0; baseClass = UIWindow; frame = (0 0; 320 480); layer = <UIWindowLayer: 0x791358d0>>
view: <TableButton: 0x7b1cada0; baseClass = UIButton; frame = (4 8; 13 13); opaque = NO; layer = <CALayer: 0x7b1cae40>>
location in window: {48, 130} previous location in window: {48, 130}
location in view: {-1, 7} previous location in view: {-1, 7}
的上海華不實現自定義pointInside方法。
它是如何觸摸越界的子視圖可以轉發到子視圖，並在子視圖邊界的觸摸轉發到超級視圖？