iOS Learning Note-uibutton

An instance UIButton of the class implements a button on the touch screen. A button intercepts touch events and sends an action message to a target object when tapped. Methods for setting the target and action is inherited UIControl from. This class provides methods for setting the title, image, and other appearance properties of a button. By using the these accessors, you can specify a different appearance for each button state. (iOS official documentation explained)

Creating Buttons

Class method: Buttonwithtype:

+ (ID)buttonwithtype: (uibuttontype) buttonType

Parameters:

typedef enum {

Uibuttontypecustom = 0,--no button style

Uibuttontypesystem,--a System Style button, such as those shown in navigation bars and toolbars (Av Ailable in IOS 7.0 and later).

uibuttontypedetaildisclosure,--a Detail disclosure button

uibuttontypeinfolight,--an information button that had a light background

Uibuttontypeinfodark,--an information button that has a dark background

< Span class= "p" > uibuttontypecontactadd, --a Contact Add button

< Span class= "p" > uibuttontyperoundedrect , --a rounded-rectangle Style button

} uibuttontype;

Configuring the Button Title

Properties: Titlelabel:

@property(nonatomic, readonly, retain) UILabel *Titlelabel

A view that displays the value currentTitle of the property for a button. (read-only)

Use it own properties primarliy to configure the text of the button.

Use the settitlecolor:forstate: and settitleshadowcolor:forstate: mothods of this class to make tho SE changes.

Properties: Currenttitle:

@property(nonatomic, readonly, retain) nsstring *currenttitle

The value is set automatically whenever the button state changes.

Titleforstate:

Returns the title associated with the specified state.

-(NSString *)titleforstate: (uicontrolstate) state

Parameters:UIControlState

Method:-Settitle:forstate:

Sets the title of the specified state.

-(void)Settitle: (nsstring *) title
forstate: (uicontrolstate) state

Method: Attributedtitleforstate:

Method: Setattributedtitle:forstate

Method: Titlecolorforstate:

Method: Settitlecolor:forstate:

Method: Titleshadowcolorforstate:

Method: Settitleshadowcolor:forstate:

Properties: reversestitleshadowwhenhighlighted:

Document Link: Https://developer.apple.com/library/ios/documentation/UIKit/Reference/UIButton_Class/index.html#//apple_ ref/doc/uid/tp40006815

Resources:

View ProgrammingGuide for IOS.

Buttons.

iOS Learning Note-uibutton