常用小控件基础使用
*****************************************
【UISlider】
//一个滑块控件
//滑块的值
&＃64;property(nonatomic) float value;
//设置滑块的最小值&＃xff08;默认最小和最大分别是0.0和1.0&＃xff09;
&＃64;property(nonatomic) float minimumValue;
//设置滑块的最大值
&＃64;property(nonatomic) float maximumValue;
//滑块前面横线的颜色
&＃64;property(nonatomic,retain) UIColor *minimumTrackTintColor;
//滑块后面横线的颜色
&＃64;property(nonatomic,retain) UIColor *maximumTrackTintColor;
//滑块的图片
- (void)setThumbImage:(UIImage *)image forState:(UIControlState)state;
//滑动时是否触发事件&＃xff08;默认是yes&＃xff09;
&＃64;property(nonatomic,getter&＃61;isContinuous) BOOL continuous;
- (void)addTarget:(id)target action:(SEL)action forControlEvents:(UIControlEvents)controlEvents;
//最后一个参数写UIControlEventValueChanged&＃xff0c;监控滑动状态
//滑动时触发&＃xff0c;如果continuous设为no的话就滑动结束时触发&＃xff0c;打印slider.value
【UISegmentedControl】
//分段选取器
//初始化传递进去的NSArray可以用字符串或图片,图片只取轮廓
- (id)initWithItems:(NSArray *)items;
//设置frame
//渲染色
&＃64;property(nonatomic,retain) UIColor *tintColor;
//设置哪个分段处于选中状态,不设置此属性&＃xff0c;任何分段都处于非选中状态
&＃64;property(nonatomic) NSInteger selectedSegmentIndex;
//插入某个分段(文字或图片都可以)
- (void)insertSegmentWithTitle:(NSString *)title atIndex:(NSUInteger)segment animated:(BOOL)animated;
- (void)insertSegmentWithImage:(UIImage *)image atIndex:(NSUInteger)segment animated:(BOOL)animated;
//删除分段&＃xff08;根据下标和删除全部&＃xff09;
- (void)removeSegmentAtIndex:(NSUInteger)segment animated:(BOOL)animated;
- (void)removeAllSegments;
//设置某个分段的title或图片
- (void)setTitle:(NSString *)title forSegmentAtIndex:(NSUInteger)segment;
- (void)setImage:(UIImage *)image forSegmentAtIndex:(NSUInteger)segment;
- (void)addTarget:(id)target action:(SEL)action forControlEvents:(UIControlEvents)controlEvents;
//最后一个参数写UIControlEventValueChanged&＃xff0c;监控点击状态
//点击时触发
//打印
//分段的标题
- (NSString *)titleForSegmentAtIndex:(NSUInteger)segment;
*****************************************
【UISwitch】
//开关控件&＃xff0c;固定大小51*31&＃xff0c;
//开关的打开状态
&＃64;property(nonatomic,getter&＃61;isOn) BOOL on;
//打开状态&＃xff0c;关闭状态的渲染色、圆圈的颜色
&＃64;property(nonatomic, retain) UIColor *onTintColor;
&＃64;property(nonatomic, retain) UIColor *tintColor;
&＃64;property(nonatomic, retain) UIColor *thumbTintColor;
- (void)addTarget:(id)target action:(SEL)action forControlEvents:(UIControlEvents)controlEvents;
//最后一个参数写UIControlEventValueChanged
//点击开关时触发
【UIActivityIndicatorView】
//活动指示器。初始化的时候设定风格样式&＃xff0c;&＃xff08;联网小菊花&＃xff09;
- (id)initWithActivityIndicatorStyle:(UIActivityIndicatorViewStyle)style;
//UIActivityIndicatorViewStyleWhiteLarge,//控件的size固定
//一般直接设置中心点为view的中心点&＃xff0c;设置大小对菊花本身没有影响
//设置小菊花的颜色
&＃64;property (readwrite, nonatomic, retain) UIColor *color;
//开始旋转和停止
- (void)startAnimating;
- (void)stopAnimating;
//用switch控制activity 的旋转状态
******************************************
【UIStepper】
//步进器 固定的size (94*29)修改无效, 事件驱动型控件
//步进器的值
&＃64;property(nonatomic) double value;
//最小和最大值&＃xff08;默认0到100&＃xff09;
&＃64;property(nonatomic) double minimumValue;
&＃64;property(nonatomic) double maximumValue;
//设置步长 (默认值为1 必须>0)(加减的时候改变的值)
&＃64;property(nonatomic) double stepValue;
//渲染色
&＃64;property(nonatomic,retain) UIColor *tintColor;
//设置前进和后退的图片&＃xff08;只取轮廓&＃xff09;
- (void)setIncrementImage:(UIImage *)image forState:(UIControlState)state;
- (void)setDecrementImage:(UIImage *)image forState:(UIControlState)state;
- (void)addTarget:(id)target action:(SEL)action forControlEvents:(UIControlEvents)controlEvents;
//最后一个参数写UIControlEventValueChanged
//点击加减的时候触发&＃xff0c;减到最小就不能在减&＃xff0c;同样的加到最大也就不能在加了
【UIProgressView】
//进度条&＃xff0c;高度固定为2&＃xff0c;设置无效
//进度条的值 固定为0到1
&＃64;property(nonatomic) float progress;
//进度条左边和右边横线的颜色
&＃64;property(nonatomic, retain) UIColor* progressTintColor;
&＃64;property(nonatomic, retain) UIColor* trackTintColor;
//用stepper控制progress的进度
*****************************************
【UIWebView】
//网页视图
UIWebView *webView &＃61; [[UIWebView alloc] initWithFrame:self.view.bounds];
NSURL *url &＃61; [NSURL URLWithString:&＃64;"http://m.jd.com"];
NSURLRequest *request &＃61; [NSURLRequest requestWithURL:url];
[webView loadRequest:request];
[self.view addSubview:webView];
//也可以先将网页内容下载下来转成字符串然后在放到webView里
[webView loadHTMLString:dataStr baseURL:nil];
*****************************************
【UIAlertView】
//警示框
//代理
UIAlertView *alert &＃61; [[UIAlertView alloc] initWithTitle:&＃64;“title” message:&＃64;“mrs” delegate:self cancelButtonTitle:&＃64;"取消" otherButtonTitles:&＃64;"确定", nil];
[alert show];
[alert release];
//代理方法
- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{
NSLog(&＃64;"buttonIndex:%d",buttonIndex);
}
【UIActionSheet】
//事件表格
//代理
UIActionSheet *sheet &＃61; [[UIActionSheet alloc] initWithTitle:&＃64;"title" delegate:self cancelButtonTitle:&＃64;"取消" destructiveButtonTitle:&＃64;“内容1” otherButtonTitles:&＃64;"内容2”,&＃64;“内容3”,nil];
[sheet showInView:self.view];
[sheet release];
//事件表代理方法
- (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex
{
NSLog(&＃64;"sheet index:%d",buttonIndex);
}
获取到程序的代理对象
AppDelegate *appDelegate &＃61; [[UIApplication sharedApplication] delegate];
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
//创建一个滑块&＃xff08;滑尺&＃xff09;
UISlider *slider&＃61;[[UISlider alloc]initWithFrame:CGRectMake(20, 40, 280, 40)];
//添加事件&＃xff0c;&＃xff08;EventValueChange&＃xff09;当值发生改变的时候触发
[slider addTarget:self action:&＃64;selector(sliderScroll:) forControlEvents:UIControlEventValueChanged];
//如果设置成NO&＃xff0c;在滑动结束以后才会触发.
slider.continuous&＃61;YES;
//设置最小和最大记录的值&＃xff0c;默认是0到1之间的
slider.minimumValue&＃61;0;
slider.maximumValue&＃61;100;
//设置圆圈左右线条上的颜色
slider.minimumTrackTintColor&＃61;[UIColor greenColor];
slider.maximumTrackTintColor&＃61;[UIColor grayColor];
//设置圆圈的背景图
[slider setThumbImage:[UIImage imageNamed:&＃64;"111"] forState:UIControlStateNormal];
slider.minimumValueImage&＃61;[UIImage imageNamed:&＃64;"911"];
slider.maximumValueImage&＃61;[UIImage imageNamed:&＃64;"911"];
[self.view addSubview:slider];
/***************************************************分割*********************************************/
//创建一个分段选择器&＃xff08;可以用字符串&＃xff0c;也可以用图片&＃xff0c;&＃xff09;
UISegmentedControl *sc&＃61;[[UISegmentedControl alloc]initWithItems:[NSArray arrayWithObjects:&＃64;"|<<",[UIImage imageNamed:&＃64;"911"], &＃64;">>|", nil]];
sc.frame&＃61;CGRectMake(38, 100, 240, 35);
//设置颜色
//sc.tintColor&＃61;[UIColor grayColor];
//删除一个分段
[sc removeSegmentAtIndex:1 animated:YES];
//插入一个分段
[sc insertSegmentWithTitle:&＃64;"^ _ ^" atIndex:1 animated:YES];
[sc addTarget:self action:&＃64;selector(scClick:) forControlEvents:UIControlEventValueChanged];
[self.view addSubview:sc];
/***************************************************分割*********************************************/
//创建一个开关&＃xff0c;size的设置是无效的
UISwitch *sh&＃61;[[UISwitch alloc]initWithFrame:CGRectMake(35, 143, 51, 31)];
//打印Switch大小
//NSLog(&＃64;"Switchsize&＃61;&＃61;%&＃64;",NSStringFromCGRect(sh.frame));
//打开状态的颜色
sh.onTintColor&＃61;[UIColor cyanColor];
//关闭时渲染色
sh.tintColor&＃61;[UIColor magentaColor];
//圆圈的颜色
sh.thumbTintColor&＃61;[UIColor yellowColor];
[sh addTarget:self action:&＃64;selector(switchClick:) forControlEvents:UIControlEventValueChanged];
[self.view addSubview:sh];
/***************************************************分割*********************************************/
//创建活动指示器&＃xff08;小菊花&＃xff09;
UIActivityIndicatorView *aiv&＃61;[[UIActivityIndicatorView alloc]initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge];
//自带大小&＃xff0c;一般都放在屏幕中间
//aiv.center&＃61;self.view.center;
aiv.frame&＃61;CGRectMake(140, 160, 0, 0);
//设置菊花的颜色
aiv.color&＃61;[UIColor blackColor];
//开始动画
[aiv startAnimating];
aiv.tag&＃61;1;
[self.view addSubview:aiv];
/***************************************************分割*********************************************/
//创建一个网页视图
UIWebView *wv&＃61;[[UIWebView alloc]initWithFrame:CGRectMake(0, 180, 320, 330)];
//代表网址的字符串
NSString *str&＃61;&＃64;"https://www.baidu.com";
//将字符串转成网址类
NSURL *url&＃61;[NSURL URLWithString:str];
//使用一个URL创建一个网络请求
NSURLRequest *request&＃61;[NSURLRequest requestWithURL:url];
//让网页视图加载网络请求
[wv loadRequest:request];
[self.view addSubview:wv];
/***************************************************分割*********************************************/
//创建一个计步器&＃xff08;步进器&＃xff09;size大小设置无效&＃xff0c;固定94*29
UIStepper *stepper&＃61;[[UIStepper alloc]initWithFrame:CGRectMake(190, 145, 94 ,29)];
//打印size大小
//NSLog(&＃64;"%&＃64;",NSStringFromCGRect(stepper.frame));
//步长&＃xff08;一次加或减的数值&＃xff09;
stepper.stepValue&＃61;200;
//设置最小值和最大值
stepper.minimumValue&＃61;0;
stepper.maximumValue&＃61;200;
//颜色
stepper.tintColor&＃61;[UIColor blackColor];
//设置&＃43;号&＃xff08;增长的&＃xff09;的图片
[stepper setIncrementImage:[UIImage imageNamed:&＃64;"311"] forState:UIControlStateNormal];
//设置-号&＃xff08;减小的&＃xff09;的图片
[stepper setDecrementImage:[UIImage imageNamed:&＃64;"311"] forState:UIControlStateNormal];
[stepper addTarget:self action:&＃64;selector(stepperClick:) forControlEvents:UIControlEventValueChanged];
[self.view addSubview:stepper];
/***************************************************分割*********************************************/
//创建进度条
UIProgressView *progress&＃61;[[UIProgressView alloc]initWithFrame:CGRectMake(20, self.view.bounds.size.height-30, 280, 10)];
//设置进度
progress.progress&＃61;0.5;
//进度条的颜色
progress.tintColor&＃61;[UIColor cyanColor];
progress.trackTintColor&＃61;[UIColor blackColor];
progress.tag&＃61;2;
[self.view addSubview:progress];
/***************************************************分割*********************************************/
}
-(void)stepperClick:(UIStepper *)stepper
{
UIProgressView *progress&＃61;(UIProgressView *)[self.view viewWithTag:2];
//设置进度&＃xff08;带动画&＃xff09;
[progress setProgress:(stepper.value)/200.0f animated:YES];
}
-(void)switchClick:(UISwitch *)sh
{
//用开关控制小菊花的动画开始停止
UIActivityIndicatorView *aiv&＃61;(UIActivityIndicatorView *) [self.view viewWithTag:1];
if (sh.on) {
[aiv startAnimating];
//&＃xff08;方括号里的方法是通过单例方法找到程序刚开始的时候&＃xff0c;系统创建的用于UIApplication对象&＃xff09;
//设置当前程序中&＃xff0c;状态栏里自带的菊花旋转状态&＃xff08;打开&＃xff09;
[UIApplication sharedApplication].networkActivityIndicatorVisible&＃61;YES;
}else{
[aiv stopAnimating];
//设置当前程序中&＃xff0c;状态栏里自带的菊花旋转状态&＃xff08;关闭&＃xff09;
[UIApplication sharedApplication].networkActivityIndicatorVisible&＃61;NO;
}
NSLog(&＃64;"%d",sh.on);
}
-(void)scClick:(UISegmentedControl *)sc
{
//根据点击分段的下标&＃xff0c;查询对应的文字
NSLog(&＃64;"&＃61;&＃61;%&＃64;",[sc titleForSegmentAtIndex:sc.selectedSegmentIndex]);
}
-(void)sliderScroll:(UISlider *)slider
{
//打印滑块记录的值
NSLog(&＃64;"%g",slider.value);
}
#import "ViewController.h"
&＃64;interface ViewController ()
&＃64;end
&＃64;implementation ViewController
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
}
- (IBAction)btnClick:(UIButton *)sender
{
NSLog(&＃64;"tag &＃61; %d",sender.tag);
if (sender.tag &＃61;&＃61; 1) {
UIAlertView *av &＃61; [[UIAlertView alloc] initWithTitle:&＃64;"通知" message:&＃64;"没电了&＃xff0c;是否充电充电充电充电充电充电充电充电充电充电" delegate:self cancelButtonTitle:&＃64;"取消" otherButtonTitles:&＃64;"好", nil];
[av show];
//在手动内存管理中av show完以后需要release
} else {
UIActionSheet *as &＃61; [[UIActionSheet alloc] initWithTitle:&＃64;"分享到" delegate:self cancelButtonTitle:&＃64;"取消" destructiveButtonTitle:&＃64;"微信" otherButtonTitles:&＃64;"朋友圈",&＃64;"微博",&＃64;"qq", nil];
//必须是在屏幕上出现的
[as showInView:self.view];
}
}
//actionSheet的点击事件
- (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex
{
NSLog(&＃64;"&＃61;&＃61;&＃61;%d",buttonIndex);
}
//av的点击事件&＃xff08;需要遵守协议&＃xff0c;成为av的代理&＃xff09;
- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{
//如果一个界面里有多个av&＃xff0c;需要用tag值判断点击的是哪一个av
//然后再通过buttonIndex判断点击的是哪一个按钮
NSLog(&＃64;"&＃61;&＃61;&＃61;%d",buttonIndex);
}
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