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设置时间和定闹钟练习:
ViewController.h文件:
#import <Cocoa/Cocoa.h>
@interface ViewController : NSViewController
- (IBAction)shezhijian:(id)sender;
@property (weak) IBOutlet NSTextField *Song;
@property (weak) IBOutlet NSTextField *ShiJian;
@property (nonatomic,strong) NSTimer *time;
@property (weak) IBOutlet NSTextField *SheZhi;
-(void) date;
@end
ViewController.m文件
#import "ViewController.h"
@implementation ViewController
- (void)viewDidLoad //-----------构造函数-------------//
{
[super viewDidLoad];
_time=[NSTimer scheduledTimerWithTimeInterval:1.0f target:self selector:@selector(date) userInfo:nil repeats:YES];
}
-(void) date
{
NSDate *today =[NSDate date];
NSDateFormatter *f=[NSDateFormatter new];
NSDateFormatter *f2=[NSDateFormatter new];
[f setDateFormat:@"yyyy年MM月dd日HH点mm分ss秒"];
[f2 setDateFormat:@"yyyyMMddHHmmss"];
NSString *str=[f stringFromDate:today];
NSString *str2=[f2 stringFromDate:today];
//NSLog(@"%@",str2);
[_ShiJian setStringValue:str]; //-----用setStringValue方法吧str给_shijian输出
if ([save isEqual: str2]) //-----判断当str2与设置的时间相同时,闹铃响了
{
[_Song setStringValue:@"快起床了 ,主人。。。。。。。"] ;
}
}
- (void)setRepresentedObject:(id)representedObject {
[super setRepresentedObject:representedObject];
// Update the view, if already loaded.
}
NSString *save;
- (IBAction)shezhijian:(id)sender
{
save = [_SheZhi stringValue]; //---获得设置的时间,给全局变量save;
}
@end
【非凡程序员】 OC第十六节课 初识OS X开发二(设置时间和定闹钟练习)
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原文地址:http://my.oschina.net/u/2366900/blog/465798