iOS UISegmentedControl的基本使用方法

UISegmentedControl*sc=[[UISegmentedControl alloc]initWithItems:@[@"1",@"2",@"3"]];
//initWithItems:(NSArray*)arr
sc.frame=CGRectMake(50,50, 100, 50);//设置位置

sc.selectedSegmentIndex=1;

sc.tintColor=[UIColor blueColor];

[sc setTitle:@"100" forSegmentAtIndex:1];

//默认为点击后保留点击效果，设置为yes后点击后恢复成原来的样子
sc.momentary=YES;

[sc addTarget:self action:@selector(click:) forControlEvents:UIControlEventValueChanged];