UIButtonAndUITextField

UIButton:

　　在设置属性的时候需要注意,UIButton中默认有

@property(nonatomic,readonly,retain) UILabel     *titleLabel; (在UIButton不能创建titleLable属性)

@property(nonatomic,readonly,retain) UIImageView *imageView;

@property(nonatomic,readonly,retain) NSString *currentTitle;             

@property(nonatomic,readonly,retain) UIColor  *currentTitleColor;  

 

　　在调用方法的时候容易直接用点语法,导致显示错误,正确调用方法应该是

- (void)setTitle:(NSString *)title forState:(UIControlState)state;                

- (void)setTitleColor:(UIColor *)color forState:(UIControlState)state

- (void)setImage:(UIImage *)image forState:(UIControlState)state;         

 

　　UITextFiled: 常用属性

@property(nonatomic,copy)   NSString               *text;               

@property(nonatomic,copy)   NSAttributedString     *attributedText; 

@property(nonatomic,retain) UIColor                *textColor;        

@property(nonatomic,retain) UIFont                 *font;                 

@property(nonatomic,retain) UIView              *leftView;  

@property(nonatomic)        UITextFieldViewMode  leftViewMode;