UI第六天

控件大集合

UISegmentcontroller 增加删除事件

UISlider 在一条上拖动

UISwitch 开关

UIActivityIndicatorView 菊花

UIProgressView 进度条

UIStepper 步进器（+/- num）

UIAlertView 提示（中间弹出的）

UIActionSheet 提示（下面的）

一些实用方法：

设置背景随机颜色：

vc.view.backgroundColor = [UIColor
colorWithRed:arc4random()%256/255.0
green:arc4random()%256/255.0
blue:arc4random()%256/255.0
alpha:1.0];

一些概念：

1.UISegmentedControl:

UISegmentedControl *segment = [[UISegmentedControl
alloc]
initWithItems:array];

/是否能连续选中 YES为能连续选中 NO不能

segment.momentary =
YES;

//添加点击事件

[segment
addTarget:self
action:@selector(pressSegment:)
forControlEvents:UIControlEventValueChanged];

- (void)pressSegment:(UISegmentedControl *)segment
{

switch (segment.selectedSegmentIndex) {

case 0:
{

}

break;

default:

break;
}
}

2.UISlider：
UISlider * slider = [[UISlider
alloc] initWithFrame:CGRectMake(40,
100, self.view.frame.size.width -
80, 20)];//高度设置没用

//按钮开始时所处位置
slider.value =
2.0;

//一条的最短

slider.minimumValue =
0.0;

//一条的长度

slider.maximumValue =
100.0;

//按钮左边的颜色

slider.minimumTrackTintColor = [UIColor
redColor];

//按钮右边的颜色

slider.maximumTrackTintColor = [UIColor
yellowColor];

//按钮上的图标

[slider setThumbImage:[UIImage
imageNamed:@"player2"]
forState:UIControlStateNormal];

- (void)sliderValueChange
{

UISlider *slider1 = (id)[self.view
viewWithTag:100];

float value = slider1.value;
value +=
1;
[slider1
setValue:value animated:YES];

NSLog(@"%f",slider1.value);

if (slider1.value == slider1.maximumValue)
{

[timer
invalidate];//跑完后停止,使定时器无效

// slider1.value = 0.0;//循环跑
}
}

3.UISwitch

UISwitch *sw = [[UISwitch
alloc] initWithFrame:CGRectMake(100,
100,
100, 100)];

sw.on =
YES;

sw.onTintColor = [UIColor
blackColor];

sw.thumbTintColor = [UIColor
whiteColor];

- (void)switchChange:(UISwitch *)sw
{

if (sw.isOn)
{

NSLog(@"********开关即将开启");
}

else
{

NSLog(@"XXXXXXXX开关即将关闭");
}

// sw.on = !sw.on;
}

4.UIActivityIndicatorView

/*

UIActivityIndicatorViewStyleWhiteLarge,

UIActivityIndicatorViewStyleWhite,

UIActivityIndicatorViewStyleGray,

*/

//设置菊花样式

indicatorView.activityIndicatorViewStyle =
UIActivityIndicatorViewStyleGray;

//设置当动画停止的时候，是否隐藏菊花 YES为隐藏
默认 NO为不隐藏
indicatorView.hidden =
NO;

[indicatorView
startAnimating];

//开启状态栏上的菊花

[[UIApplication
sharedApplication] setNetworkActivityIndicatorVisible:YES];

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
UIActivityIndicatorView *indicatorView = (id)[self.view
viewWithTag:100];

[indicatorView
stopAnimating];

//关闭状态栏上的菊花

[[UIApplication
sharedApplication] setNetworkActivityIndicatorVisible:NO];
}

5.UIProgressView

//设置进度值
范围是0.0-1.0
progressView.progress =
0.1;

[NSTimer
scheduledTimerWithTimeInterval:0.05
target:self
selector:@selector(valueChange)
userInfo:nil
repeats:YES];

- (void)valueChange
{

UIProgressView *progressView = (id)[self.view
viewWithTag:100];

float value = progressView.progress;
value +=
0.01;
[progressView
setProgress:value
animated:YES];
}

6.UIStepper:

stepper.value =
100.0;

stepper.minimumValue =
0.0;

stepper.maximumValue =
120.0;

stepper.stepValue =
4.0;

- (void)valueChange:(UIStepper *)stepper
{

UILabel *label = (id)[self.view
viewWithTag:100];

label.text = [NSString
stringWithFormat:@"%f",stepper.value];
}

7.UIAlertView:

UIAlertView *alert = [[UIAlertView
alloc] initWithTitle:@"提示"
message:@"上miss"
delegate:self
cancelButtonTitle:@"取消"
otherButtonTitles:@"确定",@"下miss",@"XX",
nil];

alert.alertViewStyle =
UIAlertViewStyleLoginAndPasswordInput;

- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{

//获取输入框的内容

UITextField *userT = [alertView
textFieldAtIndex:0];

UITextField *passT = [alertView
textFieldAtIndex:1];

switch (buttonIndex) {

case 0:
{

}

break;

default:

break;
}

NSLog(@"%ld",buttonIndex);
}

8.UIActionSheet：

UIActionSheet *actionSheet = [[UIActionSheet
alloc] initWithTitle:@"拍照"
delegate:self
cancelButtonTitle:@"取消"
destructiveButtonTitle:@"警告"
otherButtonTitles:@"确定",
@"xxx",nil];

-(void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex
{

NSLog(@"%ld",buttonIndex);
}