IOS Study Notes (7)-UI basics UIButton

 

  UIButton *btn=[[UIButton alloc]initWithFrame:CGRectMake(60, 60, 200, 60)];    btn.backgroundColor=[UIColor greenColor];    [btn setTitle:@"btn1" forState:UIControlStateNormal];    [self.view addSubview:btn];

 

 

 

UIButton *btn2=[UIButton buttonWithType:UIButtonTypeRoundedRect];    CGRect rect=CGRectMake(60, 160, 200, 60);    btn2.frame=rect;    btn2.tag=1001;    btn2.backgroundColor=[UIColor colorWithRed:30/255.0 green:200/255.0 blue:125/255.0 alpha:1.0];    [btn2 setTitle:@"btn2" forState:UIControlStateNormal];    [btn2 addTarget:self action:@selector(btn2Pressed) forControlEvents:UIControlEventTouchDown];    [self.view addSubview:btn2];

Btn2Pressed method:

 

 

-(void)btn2Pressed{    NSLog(@"button pressed");}

 

Typedef enum {UIButtonTypeCustom = 0, // no button type custom, no style UIButtonTypeRoundedRect, // rounded rect, flat white button, like in address card white rounded rectangle, similar to preference settings, the table unit or address book card UIButtonTypeDetailDisclosure, // The Blue disclosure button can be placed next to any text, and the tiny circle information button used by the UIButtonTypeInfoLight, // widget, you can put UIButtonTypeInfoDark next to any text, // The UIButtonTypeContactAdd button for the dark circle information used in the white background, // The Blue plus sign (+) button, which can be placed next to any text} UIButtonType;

Void) setTitle :( NSString *) title forState :( UIControlState) state;

Void) setTitleColor :( UIColor *) color forState :( UIControlState) state;

Void) setTitleShadowColor :( UIColor *) color forState :( UIControlState) state;

Void) setImage :( UIImage *) image forState :( UIControlState) state;

Void) setBackgroundImage :( UIImage *) image forState :( UIControlState) state;

 

typedef NS_OPTIONS(NSUInteger, UIControlState) {    UIControlStateNormal       = 0,    UIControlStateHighlighted  = 1 << 0,                  // used when UIControl isHighlighted is set    UIControlStateDisabled     = 1 << 1,    UIControlStateSelected     = 1 << 2,                  // flag usable by app (see below)    UIControlStateApplication  = 0x00FF0000,              // additional flags available for application use    UIControlStateReserved     = 0xFF000000               // flags reserved for internal framework use};

 

 

 

[btn addTarget:<#(id)#> action:<#(SEL)#> forControlEvents:<#(UIControlEvents)#>]

 

 

typedef NS_OPTIONS(NSUInteger, UIControlEvents) {    UIControlEventTouchDown           = 1 <<  0,      // on all touch downs    UIControlEventTouchDownRepeat     = 1 <<  1,      // on multiple touchdowns (tap count > 1)    UIControlEventTouchDragInside     = 1 <<  2,    UIControlEventTouchDragOutside    = 1 <<  3,    UIControlEventTouchDragEnter      = 1 <<  4,    UIControlEventTouchDragExit       = 1 <<  5,    UIControlEventTouchUpInside       = 1 <<  6,    UIControlEventTouchUpOutside      = 1 <<  7,    UIControlEventTouchCancel         = 1 <<  8,    UIControlEventValueChanged        = 1 << 12,     // sliders, etc.    UIControlEventEditingDidBegin     = 1 << 16,     // UITextField    UIControlEventEditingChanged      = 1 << 17,    UIControlEventEditingDidEnd       = 1 << 18,    UIControlEventEditingDidEndOnExit = 1 << 19,     // 'return key' ending editing    UIControlEventAllTouchEvents      = 0x00000FFF,  // for touch events    UIControlEventAllEditingEvents    = 0x000F0000,  // for UITextField    UIControlEventApplicationReserved = 0x0F000000,  // range available for application use    UIControlEventSystemReserved      = 0xF0000000,  // range reserved for internal framework use    UIControlEventAllEvents           = 0xFFFFFFFF};

 

 

@ Zhang xingye TBOW

 

 

 

Http://developer.apple.com/library/ios/#documentation/UIKit/Reference/UIButton_Class/UIButton/UIButton.html

 

Http://developer.apple.com/library/ios/#documentation/uikit/reference/UIKit_Framework/Introduction/Introduction.html#//apple_ref/doc/uid/TP40006955-CH1-SW1