@property (nonatomic,readonly) UIView *superview; Get your own parent control object @property (nonatomic,readonly,copy) Nsarray *subviews; Gets all of its child control objects @property (nonatomic) nsinteger tag; The id\ identification of the control, the parent control can find the corresponding child control by tag @property (nonatomic) cgaffinetransform Transform; The deformation properties of the control (you can set properties such as rotation angle, scale scaling, panning, and so on) @property (nonatomic) cgrect frame; The position and dimensions of the control's rectangle in the parent control (in the upper-left corner of the parent control as the coordinate origin) @ Property (nonatomic) cgrect bounds; the position and dimensions of the rectangle where the control is located (the origin of the coordinates in its upper-left corner, so bounds X\y is generally 0) @property (nonatomic) Cgpoint Center; The position of the midpoint of the control, in the upper-left corner of the parent control, as the coordinate origin.
Common Properties of UIView
