Common Properties for iOS development UIView

1. The common properties that all controls inherit from Uiview,uiview are as follows:

@property (nonatomic,readonly) UIView *superview; Get your own parent control object

@property (nonatomic,readonly,copy) Nsarray *subviews; get all of your 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, pan, and so on)

@property (nonatomic) cgrect frame; the position and dimensions of the control's rectangle in the parent control (the origin of the coordinates in the upper-left corner of the parent control)

@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

Notes can set a picture as the background of a uiview:

UIImage * MyImage = [UIImage imagenamed:@ "Me"];

Self.view.backgroundColor = [Uicolor colorwithpatternimage:myimage];

2. Common methods of UIView

-(void) Addsubview: (UIView *) view; Add a child control view

-(void) Removefromsuperview; Remove from parent control

-(UIView *) Viewwithtag: (nsinteger) tag; find the corresponding control (usually child controls) based on a tag identifier

Common Properties for iOS development UIView