UISegmentedControl的所有操作总结

    #import "SegmentedControlTestViewController.h"  

@implementation SegmentedControlTestViewController  

@synthesize segmentedControl;  



/**************************************** 

Tasks 

Initializing a Segmented Control 

– initWithItems:   

Managing Segment Content 

– setImage:forSegmentAtIndex:   

– imageForSegmentAtIndex:   

– setTitle:forSegmentAtIndex:   

– titleForSegmentAtIndex:   

Managing Segments 

– insertSegmentWithImage:atIndex:animated:   

– insertSegmentWithTitle:atIndex:animated:   

numberOfSegments  property   

– removeAllSegments   

– removeSegmentAtIndex:animated:   

selectedSegmentIndex  property   

Managing Segment Behavior and Appearance 

momentary  property   

segmentedControlStyle  property   

tintColor  property   

– setEnabled:forSegmentAtIndex:   

– isEnabledForSegmentAtIndex:   

– setContentOffset:forSegmentAtIndex:   

– contentOffsetForSegmentAtIndex:   

– setWidth:forSegmentAtIndex:   

– widthForSegmentAtIndex:   

*********************************************/  

// 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];  

}  



/* 

// Override to allow orientations other than the default portrait orientation. 

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation { 

// Return YES for supported orientations 

return (interfaceOrientation == UIInterfaceOrientationPortrait); 

} 

*/  

- (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