UISegmentedControl的所有操作总结

#import "SegmentedControlTestViewController.h"

@implementation SegmentedControlTestViewController

@synthesize segmentedControl;

// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
- (void)viewDidLoad {

NSArray *segmentedArray = [[NSArray alloc]initWithObjects:@"1",@"2",@"3",@"4",nil];

//初始化UISegmentedControl
UISegmentedControl *segmentedTemp = [[UISegmentedControl alloc]initWithItems:segmentedArray];

segmentedControl = segmentedTemp;

segmentedControl.frame = CGRectMake(60.0, 10.0, 200.0, 50.0);

[segmentedControl setTitle:@"two" forSegmentAtIndex:1];//设置指定索引的题目
[segmentedControl setImage:[UIImage imageNamed:@"lan.png"] forSegmentAtIndex:3];//设置指定索引的图片
[segmentedControl insertSegmentWithImage:[UIImage imageNamed:@"mei.png"] atIndex:2 animated:NO];//在指定索引插入一个选项并设置图片
[segmentedControl insertSegmentWithTitle:@"insert" atIndex:3 animated:NO];//在指定索引插入一个选项并设置题目
[segmentedControl removeSegmentAtIndex:0 animated:NO];//移除指定索引的选项
[segmentedControl setWidth:70.0 forSegmentAtIndex:2];//设置指定索引选项的宽度
[segmentedControl setContentOffset:CGSizeMake(10.0,10.0) forSegmentAtIndex:1];//设置选项中图片等的左上角的位置

//获取指定索引选项的图片imageForSegmentAtIndex：
UIImageView *imageForSegmentAtIndex = [[UIImageView alloc]initWithImage:[segmentedControl imageForSegmentAtIndex:1]];

imageForSegmentAtIndex.frame = CGRectMake(60.0, 100.0, 30.0, 30.0);

//获取指定索引选项的标题titleForSegmentAtIndex
UILabel *titleForSegmentAtIndex = [[UILabel alloc]initWithFrame:CGRectMake(100.0, 100.0, 30.0, 30.0)];

titleForSegmentAtIndex.text = [segmentedControl titleForSegmentAtIndex:0];

//获取总选项数segmentedControl.numberOfSegments
UILabel *numberOfSegments = [[UILabel alloc]initWithFrame:CGRectMake(140.0, 100.0, 30.0, 30.0)];

numberOfSegments.text = [NSString stringWithFormat:@"%d",segmentedControl.numberOfSegments];

//获取指定索引选项的宽度widthForSegmentAtIndex：
UILabel *widthForSegmentAtIndex = [[UILabel alloc]initWithFrame:CGRectMake(180.0, 100.0, 70.0, 30.0)];

widthForSegmentAtIndex.text = [NSString stringWithFormat:@"%f",[segmentedControl widthForSegmentAtIndex:2]];

segmentedControl.selectedSegmentIndex = 2;//设置默认选择项索引
segmentedControl.tintColor = [UIColor redColor];

segmentedControl.segmentedControlStyle = UISegmentedControlStylePlain;//设置样式
segmentedControl.momentary = YES;//设置在点击后是否恢复原样

[segmentedControl setEnabled:NO forSegmentAtIndex:4];//设置指定索引选项不可选
BOOL enableFlag = [segmentedControl isEnabledForSegmentAtIndex:4];//判断指定索引选项是否可选
NSLog(@"%d",enableFlag);

[self.view addSubview:widthForSegmentAtIndex];

[self.view addSubview:numberOfSegments];

[self.view addSubview:titleForSegmentAtIndex];

[self.view addSubview:imageForSegmentAtIndex];

[self.view addSubview:segmentedControl];

[widthForSegmentAtIndex release];

[numberOfSegments release];

[titleForSegmentAtIndex release];

[segmentedTemp release];

[imageForSegmentAtIndex release];

//移除所有选项

//[segmentedControl removeAllSegments];
[super viewDidLoad];

}

- (void)didReceiveMemoryWarning {

// Releases the view if it doesn't have a superview.
[super didReceiveMemoryWarning];

// Release any cached data, images, etc that aren't in use.
}

- (void)viewDidUnload {

// Release any retained subviews of the main view.

// e.g. self.myOutlet = nil;
}

- (void)dealloc {

[segmentedControl release];

[super dealloc];

}

@end