iOS 十大控件

10个控件

label
button
view
imageview
textfield
textview

interface build IBOutlet 界面显示
IBAction 和void一个类型

计步器
UIStepper * stepper
进度条
UIProgressView * progress
警告框
1、添加的警告框的标题
2、警告框的内容
3、设置代理
一般设置当前类的对象指针为UIAlertView的代理
4、设置按钮的标题
此处的标题一般的时候不缺省
5、设置多个按钮标题
UIAlertView * alertview = [[UIAlertView
alloc]initWithTitle:@"警告"
message:@"你很帅" delegate:self
cancelButtonTitle:@"我知道了" otherButtonTitles:@"呵呵",
nil];
//alerview 就是与用户交互的警告框
//buttonIndex
警告框上的按钮的下标值(从左向右，或者从上向下，下标值逐渐加1)
//cancelButton
的下标值永远为0
提示框
//destructiveButton 的下标值为0
， 按钮从上到下，下标值逐个加1
UIActionSheet * sheet = [[UIActionSheet
alloc]initWithTitle:@"上传图片信息" delegate:self
cancelButtonTitle:@"取消"
destructiveButtonTitle:@"确定" otherButtonTitles:@"拍照",@"从相册中获取",@"从本地获取",
nil];
//将提示框添加到视图上面
分段控件对象
NSArray * arr =
@[@"red",@"green",@"blue"];
UISegmentedControl * segmentcontrol = [[UISegmentedControl
alloc]initWithItems:arr];
segmentcontrol.frame =
CGRectMake(10,
100, 300,
40);
创建滑动块
UISlider * slider = [[UISlider
alloc]initWithFrame:CGRectMake(10,
100, 300,
10)];
网页视图WEBview
UIWebView * webview = [[UIWebView
alloc]initWithFrame:CGRectMake(0,
50, 320,
480-50)];
创建开关控件对象 及活动指示器
UISwitch * swtichview = [[UISwitch
alloc]initWithFrame:CGRectMake(100,
100, 100,
40)];
//活动指示器不能与用户进行交互
//经常用于显示加载中
//<1>创建活动指示器对象
/*
UIActivityIndicatorViewStyleWhiteLarge,
UIActivityIndicatorViewStyleWhite,
UIActivityIndicatorViewStyleGray
*/
UIActivityIndicatorView * activity = [[UIActivityIndicatorView
alloc]initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge];
//活动指示器

创建选择器控件UIPickerView
picker = [[UIPickerView
alloc]initWithFrame:CGRectMake(0,
230, 320,
480-230)];
picker.backgroundColor = [UIColor
greenColor];

//设置代理 必须设置代理，不然无法传值
picker.delegate =
self;
picker.dataSource =
self;

计步器

//<1>创建计步器对象
UIStepper * stepper = [[UIStepper
alloc]initWithFrame:CGRectMake(100,
100, 100,
100)];

进度条
//进度条不能与用户进行交互
//必须让外界触发
/*
UIProgressViewStyleDefault,
UIProgressViewStyleBar
*/
UIProgressView * progress = [[UIProgressView
alloc]initWithProgressViewStyle:UIProgressViewStyleDefault];

//重写viewWillAppear方法，对视图上的数据或者布局进行修改
-(void)viewWillAppear:(BOOL)animated
{
UIStepper * stepper = (UIStepper *)[self.view
viewWithTag:99];
UIProgressView * progressview = (UIProgressView *) [self.view
viewWithTag:100];

stepper.value =
0;
progressview.progress =
0;

}
-(void)createStepper
// 计步器
{
//<1>创建计步器对象
UIStepper * stepper = [[UIStepper
alloc]initWithFrame:CGRectMake(100,
100, 100,
100)];

//<2>设置stepper的背景颜色
默认背景颜色为白色和按钮一样的默认颜色
//stepper.backgroundColor = [UIColor redColor];

//<3>设置stepper的边框颜色
//默认为蓝色
stepper.tintColor = [UIColor
purpleColor];

//<4>设置stepper的最小值
stepper.minimumValue =
0;

//<5>设置stepper的最大值
stepper.maximumValue =
100;

//<6>设置初始值
stepper.value =
0;

//<7>为stepper添加点击事件
[stepper addTarget:self
action:@selector(stepperChange:)
forControlEvents:UIControlEventValueChanged];

//<8>设置stepper的步长（点击＋
－ 的时候stepper的value的值的变化
stepper.stepValue =
10;

//<9>禁止长按的属性
//默认情况下是允许长按的
stepper.autorepeat =
NO;
//stepper.continuous = NO; //过时了，5.0
不能用

stepper.tag =
99;

[self.view
addSubview:stepper];
[stepper release];

}

-(void)stepperChange:(id)sender
{
//id表示任意类型的控件对象
//sender表示用户交互的控件，
这种用户交互机制所有控件都具有

UIStepper * stepper = (UIStepper *)sender;
UIProgressView * progressview = (UIProgressView *)[self.view
viewWithTag:100];
progressview.progress = stepper.value/stepper.maximumValue;

if (progressview.progress ==
1) {
NExTViewController * next = [[NExTViewController
alloc]init];
[self
presentViewController:next
animated:YES
completion:Nil];
[next release];
}

}

-(void)createProgress
//进度器
{
//进度条不能与用户进行交互
//必须让外界触发
/*
UIProgressViewStyleDefault,
UIProgressViewStyleBar
*/
UIProgressView * progress = [[UIProgressView
alloc]initWithProgressViewStyle:UIProgressViewStyleDefault];
//<1>设置显示位置
progress.frame =
CGRectMake(10,
200, 300,
10);

//<2>设置进度条左侧的颜色
progress.progressTintColor = [UIColor
redColor];

//<3>设置进度条右侧的颜色
progress.trackTintColor = [UIColor
blueColor];

//<4>设置进度条的初始值
progress.progress =
0;
//progress值从0到1
//如果设置的这progress的值大于0，那么进度条永远都处于充满的状态
progress.tag =
100;

[self.view
addSubview:progress];
[progress release];

}

创建警告框
-(void)createBtn
{
UIButton * btn1 = [XLMyButton
creatButtonWithFrame:CGRectMake(100,
100, 100,
100) target:self
sel:@selector(perssBtn:)
tag:1
image:Nil
title:@"警告框"];
[self.view
addSubview:btn1];
UIButton *btn2 = [XLMyButton
creatButtonWithFrame:CGRectMake(100,
200, 100,
100) target:self
sel:@selector(perssBtn:)
tag:2
image:nil
title:@"高仿警告框"];
[self.view
addSubview:btn2];

}
-(void)perssBtn:(id)sender
{
UIButton * btn = (UIButton *)sender;
if (btn.tag ==
1) {

//创建警告框
/*
1、添加的警告框的标题
2、警告框的内容
3、设置代理
一般设置当前类的对象指针为UIAlertView的代理
4、设置按钮的标题
此处的标题一般的时候不缺省
5、设置多个按钮标题
*/
UIAlertView * alertview = [[UIAlertView
alloc]initWithTitle:@"警告"
message:@"你很帅" delegate:self
cancelButtonTitle:@"我知道了" otherButtonTitles:@"呵呵",
nil];
//将alerview添加到视图上
[alertview show];
//警告框独有的方法
alertview.tag =
100;
[alertview release];

//alertview不需要设置显示位置及大小，编译器会自动设置警告显示在视图的中心位置
//alertview显示出来以后，后面的原有视图不能与用户交互，直到警告框消失才可与用户交互

}
else
{
UIAlertView * alert = [[UIAlertView
alloc]initWithTitle:@"测试性格" message:@"选择颜色"
delegate:self cancelButtonTitle:@"确定" otherButtonTitles:@"红",@"黄",@"蓝",@"绿",nil];
[alert show];
[alert release];

}
// 点击警告框上的按钮，会自动触发协议中的方法

}
-(void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{
//alerview 就是与用户交互的警告框
//buttonIndex
警告框上的按钮的下标值(从左向右，或者从上向下，下标值逐渐加1)
//cancelButton
的下标值永远为0
if (alertView.tag ==
100) {
if (buttonIndex ==
0) {
NSLog(@"点击的是：我知道了");
}
else
{
NSLog(@"点击的是：呵呵
按钮");
}
}
else
{
switch (buttonIndex) {
case
1:
self.view.backgroundColor = [UIColor
redColor];
break;
case
2:
self.view.backgroundColor = [UIColor
yellowColor];
break;
case
3:
self.view.backgroundColor = [UIColor
blueColor];
break;
case
4:
self.view.backgroundColor= [UIColor
greenColor];
break;
default:
break;
}
}

}

提示框
-(void)perssBtn:(id)sender
{
//提示框的显示位置及大小都是系统自动设置的，无需手动设置
//提示框显示位置在视图底的位置，向上弹出
//destructiveButton
和alertview中的cancelbutton相同，一般的时候这个按钮不能缺省
//destructiveButton
的下标值为0 ，
按钮从上到下，下标值逐个加1
UIActionSheet * sheet = [[UIActionSheet
alloc]initWithTitle:@"上传图片信息" delegate:self
cancelButtonTitle:@"取消"
destructiveButtonTitle:@"确定" otherButtonTitles:@"拍照",@"从相册中获取",@"从本地获取",
nil];
//将提示框添加到视图上面

[sheet showInView:self.view];//提示框独有的方法
[sheet release];

}

//点击按钮触发协议中的方法
-(void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex
{
NSLog(@"%d",buttonIndex);

}

分段控件对象
//分段控件
-(void)createSegment
{
//<1>创建分段控件对象
NSArray * arr =
@[@"red",@"green",@"blue"];
UISegmentedControl * segmentcontrol = [[UISegmentedControl
alloc]initWithItems:arr ];
segmentcontrol.frame =
CGRectMake(10,
100, 300,
40);

//<2>设置分段控件的边框颜色
segmentcontrol.tintColor = [UIColor
purpleColor];

//<3>设置默认选中的分段位置
segmentcontrol.selectedSegmentIndex =
0;

//<4>插入新的分段
[segmentcontrol insertSegmentWithTitle:@"new"
atIndex:0
animated:YES];

//<5>点击事件
[segmentcontrol addTarget:self
action:@selector(perssBtn:)
forControlEvents:UIControlEventValueChanged];

[self.view
addSubview:segmentcontrol];
[segmentcontrol release];

}
-(void)perssBtn:(id)sender
{
UISegmentedControl * segment = (UISegmentedControl *)sender;
if (segment.selectedSegmentIndex ==
1) {
self.view.backgroundColor = [UIColor
redColor];

}
else
if (segment.selectedSegmentIndex ==
2)
{
self.view.backgroundColor = [UIColor
blueColor];

}
else
{
self.view.backgroundColor =[UIColor
whiteColor];
}

}

创建滑动块
-(void)createSlider
{
//<1>创建滑动块
UISlider * slider = [[UISlider
alloc]initWithFrame:CGRectMake(10,
100, 300,
10)];

//<2>设置slider的最大值
slider.maximumValue =
1;

//<3>设置最小值
slider.minimumValue =
0;

//<4>设置slider的初始值
slider.value =
0;

//<5>设置slider的左侧的颜色
slider.minimumTrackTintColor = [UIColor
redColor];

//<6>设置slider右侧的颜色
slider.maximumTrackTintColor = [UIColor
yellowColor];

//<7>为slider添加事件
，能与用户交互
[slider addTarget:self
action:@selector(sliderChsanged:)
forControlEvents:UIControlEventValueChanged];

slider.tag =
1;
[self.view
addSubview:slider];
[slider release];

UISlider * slider1 = [[UISlider
alloc]initWithFrame:CGRectMake(10,
200,300,
30)];
slider1.minimumValue =
0;
slider1.maximumValue =
1;
slider1.minimumTrackTintColor = [UIColor
cyanColor];
slider1.maximumTrackTintColor = [UIColor
magentaColor];
slider1.value =
0;
slider1.tag =
2;

//设置slider左侧图片
slider1.minimumValueImage = [UIImage
imageNamed:@"tab_c1.png"];

//设置slider右侧图片
slider1.maximumValueImage = [UIImage
imageNamed:@"tab_c3.png"];

//设置slider按钮图片
[slider1 setThumbImage:[UIImage
imageNamed:@"tab_c0.png"]
forState:UIControlStateNormal];

[slider1 addTarget:self
action:@selector(sliderChsanged:)
forControlEvents:UIControlEventValueChanged];

[self.view
addSubview: slider1];
[slider1 release];
}

-(void)sliderChsanged:(id)sender
{
UISlider * slider = (UISlider * )sender;
if (slider.tag ==
1) {
NSLog(@"%f",slider.value);
}
else
{
if (slider.value <
1) {
static
int count = 10;
count ++;
self.view.backgroundColor = [UIColor
colorWithRed:(count * 25%255)/255.0
green:(count * 26%255)/255.0
blue:(count * 29%255)/255.0
alpha:1];
}
}
}

网页视图WEBview
-(void)createWebView
{
//<1>创建webview的对象，显示网址下的所有数据
UIWebView * webview = [[UIWebView
alloc]initWithFrame:CGRectMake(0,
50, 320,
480-50)];

//<2>设置字符串网址
NSString * path =
@"http://10.0.8.8";

//<3>将字符串转化成NSURL
NSURL * url = [NSURL
URLWithString:path];

//<4>将NSURL封装成请求对象
NSURLRequest * request = [NSURLRequest
requestWithURL:url];

//<5>将请求下来的数据显示在webview上
[webview loadRequest:request];

webview.tag =
1;
[self.view
addSubview: webview];
[webview release];

}
-(void)createSlider
{
UISlider * slider = [[UISlider
alloc]initWithFrame:CGRectMake(0,
30, 320,
10)];

slider.minimumValue =
10;
slider.maximumValue =
1000;

slider.value =
10;
[slider addTarget:self
action:@selector(shliderchanged:)
forControlEvents:UIControlEventValueChanged];
slider.tag =100;
[self.view
addSubview: slider];
[slider release];

}
-(void)shliderchanged:(id)sender
{
UIWebView * web = (UIWebView *)[self.view
viewWithTag:1];
UISlider * slider =(UISlider *)[self.view
viewWithTag:100];
[web stringByEvaluatingJavaScriptFromString:[NSString
stringWithFormat:@"document.getElementsByTagName('body')[0].style.webkitTextSizeAdjust= '%f%%'",slider.value]];
[web stringByEvaluatingJavaScriptFromString:@"document.getElementsByTagName('body')[0].style.webkitTextFillColor= 'blue'"];

}

<1>创建开关控件对象 及活动指示器
-(void)createSwitch
{
//<1>创建开关控件对象
UISwitch * swtichview = [[UISwitch
alloc]initWithFrame:CGRectMake(100,
100, 100,
40)];

//<2>设置开关按钮初始状态
swtichview.on =
NO;

//<3>设置开关按钮开启时候的背景颜色
swtichview.onTintColor = [UIColor
yellowColor];

//<4>设置开关按钮关闭时的颜色
swtichview.tintColor = [UIColor
cyanColor];

//<5>设置开关按钮上按钮的颜色
swtichview.thumbTintColor = [UIColor
redColor];

//<6>添加点击事件
[swtichview addTarget:self
action:@selector(switchChanged:)
forControlEvents:UIControlEventTouchUpInside];
[self.view
addSubview: swtichview];
[swtichview release];

}
-(void)switchChanged:(id)sender
{
UISwitch * twmpSwitch = (UISwitch *)sender;
UIActivityIndicatorView * activity = (UIActivityIndicatorView *)[self.view
viewWithTag:200];
//判断开关按钮的状态
//tempSwitch.isOn表示开启状态
if (twmpSwitch.isOn) {

activity.hidden =
NO;
[activity startAnimating];
//开始动画
}
else
{
[activity stopAnimating];
//停止动画
//hidesWhenStopped
为yes ，所以动画停止的时候自动隐藏，此处无需设置隐藏状态
}

}
-(void)createActivity
{
//活动指示器不能与用户进行交互
//经常用于显示加载中
//<1>创建活动指示器对象
/*
UIActivityIndicatorViewStyleWhiteLarge,
UIActivityIndicatorViewStyleWhite,
UIActivityIndicatorViewStyleGray,
*/
UIActivityIndicatorView * activity = [[UIActivityIndicatorView
alloc]initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge];

//<2>设置活动指示器初始状态为隐藏
activity.hidden =
YES;

//<3>设置活动指示器停止活动的时候，隐藏
activity.hidesWhenStopped =
YES;

//<4>设置活动指示器的显示位置
activity.frame =
CGRectMake(100,
200, 50,
50);

activity.tag =
200;

[self.view
addSubview:activity];
[activity release];

}

选择器控件UIPickerView
//数组随意设置
遵守协议.h
<UIPickerViewDelegate,UIPickerViewDataSource>
- (void)viewDidLoad
{
[super
viewDidLoad];

arr1 = [[NSArray
alloc]initWithObjects:@"水",@"空气",@"树木",@"飞禽走兽",@"人类",@"动物",nil];
arr2 = [[NSArray
alloc]initWithObjects:@"星期一",@"星期二",@"星期三",@"星期四",@"星期五",
nil];

//创建选择器控件
picker = [[UIPickerView
alloc]initWithFrame:CGRectMake(0,
230, 320,
480-230)];
picker.backgroundColor = [UIColor
greenColor];

//设置代理
picker.delegate =
self;
picker.dataSource =
self;

[self.view
addSubview: picker];
[self
createBtn];
}
//必须实现的协议中的方法
//<1>设置当前的选择器控件的列数
-(NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView
{
return
2;
}
//<2>设置每一列显示的行数
-(NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component
{
//component指的就是列号，列号的下标从0开始
if (component ==
0) {
return [arr1
count];
}
else
{
return [arr2
count];
}

}

//<3>设置每行显示的信息
-(NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component
{
//component 表示的是列号
//row表示的是每一列中的行号
if (component ==
0) {

return [arr1
objectAtIndex:row];
}
else
{
return [arr2
objectAtIndex:row];
}
}
-(void)createBtn
{
UIButton * btn = [UIButton
buttonWithType: UIButtonTypeCustom];
btn.frame =
CGRectMake(100,
100, 100,
100);
[btn setTitle:@"完成"
forState:UIControlStateNormal];
[btn setTitleColor:[UIColor
redColor] forState:UIControlStateNormal];
[btn addTarget:self
action:@selector(pressBtn:)
forControlEvents:UIControlEventTouchUpInside];
[self.view
addSubview: btn];
}
-(void)pressBtn:(id)sender
{
//获取选中的行号
int indexrow = [picker
selectedRowInComponent:0];

//获取选中的内容
NSString * string = [arr1
objectAtIndex:indexrow];
NSString * allstr = [NSString
stringWithFormat:@"您选择的是: %@",string];

//使用警告框显示
UIAlertView * alert = [[UIAlertView
alloc]initWithTitle:@"提示"
message:allstr delegate:Nil
cancelButtonTitle:@"确定"
otherButtonTitles:nil ,
nil];

[alert show];
[alert release];

}