Will的部落格

本範例目的是使用按鈕(button)去改變開關(UISwitch)之狀態

1. storyboard中加入switch, button

2.與viewcontroller.h檔建立程式關聯性, 程式碼如下

@property (strong, nonatomic) IBOutletUISwitch *mySwitch;
- (IBAction)toClick:(id)sender;

3.點擊按鈕, 判斷switch狀態並切換, 程式碼如下

- (IBAction)toClick:(id)sender {

    if(_mySwitch.on == YES)
    {
        [_mySwitch setOn:NO animated:YES];
    }else{
        [_mySwitch setOn:YES animated:YES];
    }
}

viewcontroller.h程式碼內容

#import <UIKit/UIKit.h>

@interface ViewController : UIViewController

@property (strong, nonatomic) IBOutletUISwitch *mySwitch;
- (IBAction)toClick:(id)sender;
 
@end

viewcontroller.m程式碼內容

#import "ViewController.h"

@interfaceViewController ()

@end
 
@implementation ViewController

- (IBAction)toClick:(id)sender {

    if(_mySwitch.on == YES)
    {
        [_mySwitch setOn:NO animated:YES];
    }else{
        [_mySwitch setOn:YES animated:YES];
    }
}

@end