IOS中最常用到的控件UIButton、UISlider、UISwitch、UISegmentedControl通過Xib文件拖動(dòng)生成非常簡(jiǎn)單，其實(shí)用代碼實(shí)現(xiàn)也是一樣的簡(jiǎn)單，當(dāng)然，用代碼實(shí)現(xiàn)能夠掌握到更多的東西。

上圖中包涵提到的4種控件，UIButton按鈕、UISlider滑塊、UISwitch開關(guān)、UISegmentedControl分類

首先創(chuàng)建一個(gè)名為CodeControls的Empty Application項(xiàng)目

AppDelegate.h和AppDelegate.m文件中和IOS代碼實(shí)現(xiàn)Hello World中的一樣

MainViewController.h

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<span?style="font-size:10px;">#import?<UIKit/UIKit.h>??

??

@interface?MainViewController?:?UIViewController??

??

@property?(strong,?nonatomic)?UIButton?*myBtn;??

@property?(strong,?nonatomic)?UISlider?*mySlider;??

@property?(strong,?nonatomic)?UISwitch?*mySwitch;??

@property?(strong,?nonatomic)?UISegmentedControl?*mySc;??

??

@end</span>??

MainViewController.m

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<span?style="font-size:10px;">#import?"MainViewController.h"??

??

@interface?MainViewController?()??

??

@end??

??

@implementation?MainViewController??

@synthesize?myBtn,mySlider,mySwitch,mySc;??

??

-?(void)viewDidLoad??

{??

????//?加載UIView??

????UIView?*mainView?=?[[UIView?alloc]?initWithFrame:[[UIScreen?mainScreen]?applicationFrame]];??

????mainView.backgroundColor?=?[UIColor?whiteColor];??

????self.view?=?mainView;??

????[mainView?release];??

??????

????//?創(chuàng)建一個(gè)Button按鈕??

????UIButton?*btn?=?[UIButton?buttonWithType:UIButtonTypeRoundedRect];??

????btn.frame?=?CGRectMake(100,?30,?57,?57);??

????[btn?setTitle:@"Button"?forState:UIControlStateNormal];??

????[btn?setTitleColor:[UIColor?blackColor]?forState:UIControlStateNormal];??

????[btn?setBackgroundImage:[UIImage?imageNamed:@"icon.png"]?forState:UIControlStateNormal];??

????[btn?addTarget:self?action:@selector(onClick:)?forControlEvents:UIControlEventTouchUpInside];??

????myBtn?=?btn;??

????[self.view?addSubview:myBtn];??

??????

??????

????//?創(chuàng)建一個(gè)Slider劃塊按鈕??

????UISlider?*slider?=?[[[UISlider?alloc]?initWithFrame:CGRectMake(50,?180,?200,?10)]?autorelease];??

????slider.minimumValue?=?0.0f;??

????slider.maximumValue?=?100.0f;??

????slider.value?=?50.0f;??

????[slider?addTarget:self?action:@selector(onChange:)?forControlEvents:UIControlEventTouchUpInside];??

????mySlider?=?slider;??

????[self.view?addSubview:mySlider];??

??????

????//?創(chuàng)建一個(gè)UISwitch開關(guān)按鈕??

????UISwitch?*sbtn?=?[[[UISwitch?alloc]?initWithFrame:CGRectMake(50,?210,?200,?50)]?autorelease];??

????[sbtn?addTarget:self?action:@selector(onSwitch:)?forControlEvents:UIControlEventTouchUpInside];??

????mySwitch?=?sbtn;??

????[self.view?addSubview:mySwitch];??

??????

????//?創(chuàng)建一個(gè)UISegmentedControl??

????NSArray?*btnList?=?[NSArray?arrayWithObjects:@"left",@"center",@"right",?nil];??

????UISegmentedControl?*sc?=?[[[UISegmentedControl?alloc]?initWithItems:btnList]?autorelease];??

????sc.frame?=?CGRectMake(50,?250,?200,?60);??

????[sc?addTarget:self?action:@selector(onSelect:)?forControlEvents:UIControlEventTouchUpInside];??

????mySc?=?sc;??

????[self.view?addSubview:mySc];??

??????

????[super?viewDidLoad];??

}??

??

//?點(diǎn)擊Button觸發(fā)??

-?(void)onClick:(id?*)sender??

{??

??

}??

??

//?拉動(dòng)Slider劃塊觸發(fā)??

-?(void)onChange:(id?*)sender??

{??

??????

}??

??

//?選擇Switch觸發(fā)??

-?(void)onSwitch:(id?*)sender??

{??

??????

}??

??

//?選擇UISegmentedControl觸發(fā)??

-?(void)onSelect:(id?*)sender??

{??

}??

</span>??

這里沒有寫點(diǎn)擊每個(gè)控件的具體實(shí)現(xiàn)方法。

UICnotrol Class 下的所有Touch事件

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UIControlEventTouchDown?????????????

UIControlEventTouchDownRepeat???????

UIControlEventTouchDragInside???????

UIControlEventTouchDragOutside??????

UIControlEventTouchDragEnter????????

UIControlEventTouchDragExit?????????

UIControlEventTouchUpInside?????????

UIControlEventTouchUpOutside????????

UIControlEventTouchCancel???????????

UIControlEventValueChanged??????????

UIControlEventEditingDidBegin???????

UIControlEventEditingChanged????????

UIControlEventEditingDidEnd?????????

UIControlEventEditingDidEndOnExit???

UIControlEventAllTouchEvents????????

UIControlEventAllEditingEvents??????

UIControlEventApplicationReserved???

UIControlEventSystemReserved????????

UIControlEventAllEvents??

UIButton Class下的所有按鈕樣式

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UIButtonTypeCustom??

UIButtonTypeRoundedRect??

UIButtonTypeDetailDisclosure??

UIButtonTypeInfoLight??

UIButtonTypeInfoDark??

UIButtonTypeContactAdd??

總結(jié)

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