IOS代码实现常用控件UIButton、UISlider、UISwitch、UISegmentedControl

IOS中最常用到的控件UIButton、UISlider、UISwitch、UISegmentedControl通过Xib文件拖动生成非常简单，其实用代码实现也是一样的简单，当然，用代码实现能够掌握到更多的东西。

上图中包涵提到的4种控件，UIButton按钮、UISlider滑块、UISwitch开关、UISegmentedControl分类

首先创建一个名为CodeControls的Empty Application项目



AppDelegate.h和AppDelegate.m文件中和IOS代码实现Hello World中的一样

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

{

// 加载UIView

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

mainView.backgroundColor = [UIColor whiteColor];

self.view = mainView;

[mainView release];

// 创建一个Button按钮

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];

// 创建一个Slider划块按钮

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];

// 创建一个UISwitch开关按钮

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];

// 创建一个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];

}

// 点击Button触发

- (void)onClick:(id *)sender

{

}

// 拉动Slider划块触发

- (void)onChange:(id *)sender

{

}

// 选择Switch触发

- (void)onSwitch:(id *)sender

{

}

// 选择UISegmentedControl触发

- (void)onSelect:(id *)sender

{

}

</span>

这里没有写点击每个控件的具体实现方法。

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下的所有按钮样式

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UIButtonTypeCustom

UIButtonTypeRoundedRect

UIButtonTypeDetailDisclosure

UIButtonTypeInfoLight

UIButtonTypeInfoDark

UIButtonTypeContactAdd

DEMO下载

http://pan.baidu.com/share/link?shareid=73529&uk=101519637