【非凡程序员】 ios中闹钟和大小写转换

一.ViewController.m中代码

//
//  ViewController.m
//  啦啦
//
//  Created by 非凡程序员 on 15/6/9.
//  Copyright (c) 2015年 wzhen. All rights reserved.
//

#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    
    _timer=[NSTimer scheduledTimerWithTimeInterval:1.0f target:self selector:@selector(shijian:) userInfo:nil repeats:YES];
    // Do any additional setup after loading the view, typically from a nib.
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}


- (IBAction)shijian:(id)sender {
    NSDate *today=[NSDate date];
    NSDateFormatter *format=[NSDateFormatter new];
    [format setDateFormat:@"yyyy年MM月dd日 HH时mm分ss秒"];
    [_nowtime setText:[format stringFromDate:today]];
   [_ring setText:_nowtime.text];
    if ([_nowtime.text compare:_settime.text]==NSOrderedDescending) {
        
      NSLog(@"timercount=%i",_timercount);
     
        if (_timercount>=30 && _timercount<=70) {
            [_ring setText:_nowtime.text];
            [today dateByAddingTimeInterval:(1*1*60)];
            [_settime setText:[format stringFromDate:today]];
            _timercount++;
           
        }
        else{
            [_ring setText:@"thanks终于响了"];
            _timercount++;
            if (_timercount==80) {
                _timercount=0;
            }
        }
    }
   
//    if (timercount==10) {
//        [_ring setText:_nowtime.text];
//     [today dateByAddingTimeInterval:(20)];
//        [_settime setText:[format stringFromDate:today]];
////        [_timer invalidate];
////        NSTimer * p=[[NSTimer alloc]initWithFireDate:nil interval:20 target:nil selector:nil userInfo:nil repeats:YES];
////        [p setFireDate:today];
//    }

}

- (IBAction)change:(id)sender {
  
    [_daxie setText:_yuanzhi.text.uppercaseString];
    [_xiaoxie setText:_yuanzhi.text.lowercaseString];
    NSString *temp=_yuanzhi.text.capitalizedString;
    NSString *final=[temp substringWithRange:NSMakeRange(0, [temp length]-1)];
    final=[NSString stringWithFormat:@"%@%@",final,[[temp substringWithRange:NSMakeRange([temp length]-1, 1)]capitalizedString]];
    [_shou setText:final];
    [_huan setTitle:@"大小写转换" forState:UIControlStateNormal];
    
 
}
@end

二.ViewController.h中代码

//
//  ViewController.h
//  啦啦
//
//  Created by 非凡程序员 on 15/6/9.
//  Copyright (c) 2015年 wzhen. All rights reserved.
//

#import <UIKit/UIKit.h>

@interface ViewController : UIViewController



@property (assign, nonatomic) int  timercount;
@property (weak, nonatomic)NSTimer *  timer;
@property (weak, nonatomic) IBOutlet UITextField *ring;

@property (weak, nonatomic) IBOutlet UITextField *settime;

@property (weak, nonatomic) IBOutlet UILabel *nowtime;


@property (weak, nonatomic) IBOutlet UIButton *huan;

- (IBAction)shijian:(id)sender;

- (IBAction)change:(id)sender;

@property (weak, nonatomic) IBOutlet UITextField *yuanzhi;
@property (weak, nonatomic) IBOutlet UITextField *daxie;
@property (weak, nonatomic) IBOutlet UITextField *xiaoxie;
@property (weak, nonatomic) IBOutlet UITextField *shou;



@end