//【UISlider】一个滑块控件,高度固定（31)-事件驱动型控件UISlider *sl = [[UISlider alloc] initWithFrame:CGRectMake(10,74,300,50)]; //设置最大最小值 sl.minimumValue = 0.0; sl.maximumValue = 100.0; //设置滑块当前指示的值 sl.value = 50.0; //值是否连续变化 sl.continuous = NO;//滑块的值@property(nonatomic) float value;//设置滑块的最小值（默认最小和最大分别是0.0和1.0）@property(nonatomic) float minimumValue;//设置滑块的最大值@property(nonatomic) float maximumValue; //滑动时是否触发事件（默认是yes）@property(nonatomic,getter=isContinuous) BOOL continuous;- (void)addTarget:(id)target action:(SEL)action forControlEvents:(UIControlEvents)controlEvents;//最后一个参数写UIControlEventValueChanged，监控滑动状态//滑动时触发，如果continuous设为no的话就滑动结束时触发，打印slider.value/**********************【UISegmentedControl】分段选取器************************/    NSArray *titles = @[@"火影",@"海贼王"];    UISegmentedControl *seg = [[UISegmentedControl alloc] initWithItems:titles];    seg.frame = CGRectMake(10,150,300,30);    //设置选中的分段    seg.selectedSegmentIndex = 0;    //插入新的分段    [seg insertSegmentWithTitle:@"银魂" atIndex:1 animated:YES];//初始化传递进去的NSArray可以用字符串或图片- (id)initWithItems:(NSArray *)items;//设置frame//设置风格样式(ios7中被禁用了)@property(nonatomic) UISegmentedControlStyle segmentedControlStyle;//设置哪个分段处于选中状态,不设置此属性，任何分段都处于非选中状态@property(nonatomic) NSInteger selectedSegmentIndex;//插入和删除某个分段- (void)insertSegmentWithTitle:(NSString *)title atIndex:(NSUInteger)segment animated:(BOOL)animated;- (void)removeSegmentAtIndex:(NSUInteger)segment animated:(BOOL)animated;//删除所有分段，相当于把这个选取器给删了。。。- (void)removeAllSegments;- (void)addTarget:(id)target action:(SEL)action forControlEvents:(UIControlEvents)controlEvents;//最后一个参数写UIControlEventValueChanged，监控点击状态//点击时触发//根据分段的下标，拿到分段的标题- (NSString *)titleForSegmentAtIndex:(NSUInteger)segment;/**********************【UISwitch】************************///【UISwitch】//开关控件，事件驱动型控件,固定大小51*31，frame中设置大小无效//开关的打开状态UISwitch * st = [[UISwitch alloc] initWithFrame:CGRectMake(10, 74, 300, 50)];//on 控制开关开闭的属性    st.on = YES;  //UIControlEventValueChanged 控件值改变是，让id执行SEL    [st addTarget:self action:@selector(stChanged:) forControlEvents:UIControlEventValueChanged];@property(nonatomic,getter=isOn) BOOL on;- (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】************************///加载等待提示控件,初始化的时候，设定风格样式，（联网小菊花）    UIActivityIndicatorView * indicatorView = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge];    //center设置视图中心点的坐标（CGPoint）,一般直接设置中心点为view的中心点    indicatorView.center = self.view.center;    indicatorView.tag = 300;        //startAnimating 开始转动- (id)initWithActivityIndicatorStyle:(UIActivityIndicatorViewStyle)style;//UIActivityIndicatorViewStyleWhiteLarge,//控件的size固定//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************************///步进器 固定的size (94*27)修改无效, 事件驱动型控件    UIStepper *st  = [[UIStepper alloc] initWithFrame:CGRectMake(10,74,300,30)];    st.value = 10;    //最值    st.minimumValue = 10;    st.maximumValue = 300;    st.continuous = NO;    //步长 + 一次增加的值    st.stepValue  = 10;    //步进器的值@property(nonatomic) double value;//最小和最大值（默认0到100）@property(nonatomic) double minimumValue;@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)@property(nonatomic) double stepValue;- (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/******************【UIProgressView】进度条，用于展示进度************************///进度条，高度固定为2，设置无效    UIProgressView *progress = [[UIProgressView alloc] initWithFrame:CGRectMake(10,150,300,20)];    //反映进度 progress (0.0-1.0)    progress.progress =0.5;//进度条的值 固定为0到1@property(nonatomic) float progress;//用stepper控制progress的进度/******************【UIWebView】网页视图************************/UIWebView *_webView = [[UIWebView alloc] initWithFrame:self.view.bounds];NSURL *url = [NSURL URLWithString:@"http://m.jd.com"];NSURLRequest *request = [NSURLRequest requestWithURL:url];[_webView loadRequest:request];[self.view addSubview:_webView];[_webView release];/******************【UIAlertView】警示框   重要************************/    UIAlertView *alert  = [[UIAlertView alloc] initWithTitle:@"温馨提示" message:@"流量用尽" delegate:self cancelButtonTitle:@"取消" otherButtonTitles:@"确定",nil];    //展示警告框    [alert show];//代理
     
      //代理方法- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex{    NSLog(@"buttonIndex:%d",buttonIndex);}/******************【UIActionSheet】 事件表格************************///代理
      
        UIActionSheet *ac = [[UIActionSheet alloc] initWithTitle:@"分享" delegate:self cancelButtonTitle:@"取消" destructiveButtonTitle:nil otherButtonTitles:@"新浪微博",@"腾讯微博",nil];    //从当前视图中，呈现出来    [ac showInView:self.view];[sheet showInView:self.view];[sheet release];//事件表代理方法- (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex{    NSLog(@"sheet index:%d",buttonIndex);}