iphone上UISwitch控件用法

.h文件中声明：

UISwitch * leftSwitch;

@property (nonatomic , retain) IBOutlet UISwitch * leftSwitch;

.m文件中添加：

@synthesize leftSwitch;

viewDidUnload()中添加：

leftSwitch = nil;

dealloc()中添加：

[leftSwitch release];

显示：

leftSwitch.hidden = NO;

隐藏：

leftSwitch.hidden = YES;

通过IBAction方法设置开关

-(IBAction) switchChanged:(id)sender

{

UISwitch * whichSwitch = (UISwitch *)sender;

BOOL setting = whichSwitch.isOn;

[leftSwitch setOn:setting animated:YES];

[rightSwitch setOn:setting animated:YES];

}