簡單的秒錶定時器，簡單秒錶定時器

簡單的秒錶定時器，簡單秒錶定時器

 簡單的秒錶定時器

思路：

1.分別添加秒錶中的上部分，樣式如 00 ：00 ： 00 . 00，分別表示時，分，秒，毫秒一共用7個labe實現

2.設定按鈕，分別是開始，停止，複位

3，通過字串轉換成數字，和數字轉換成字串來進行秒錶的設計

 

  1 #import "ViewController.h"  2   3 #import "UIView+FrameExtension.h"  4   7 #define kDeviceWidth [UIScreen mainScreen].bounds.size.width  8   9 #define kDeviceHeight [UIScreen mainScreen].bounds.size.height 10  13 @interface ViewController (){ 14  15     UILabel *_lbl1; 16  17     UILabel *_lbl2; 18  19     UILabel *_lbl3; 20  21     UILabel *_lbl4; 25     NSTimer *_timer; 26  27     BOOL    _isRunning; 28  29 } 33 @end 34  37 @implementation ViewController 38  41 - (void)viewDidLoad { 42  43     [super viewDidLoad]; 44  47     [self createLabel];     //建立7個標籤 48  49     [self createTimer];     //建立1個定時器 50  51     [self createButton];    //建立3個按 52  53 } 54  57 -(void)createLabel{ 61     UILabel *lbl1 = [[UILabel alloc]initWithFrame:CGRectMake(90, 200, 30, 40)]; 62  63     lbl1.text = @"00"; 64  65     lbl1.textColor = [UIColor redColor]; 66  67     [self.view addSubview:lbl1]; 68  69     _lbl1 = lbl1; 70  73     UILabel *lbl11 = [[UILabel alloc]initWithFrame:CGRectMake(lbl1.right, lbl1.y, 10, lbl1.height)]; 74  75     lbl11.text = @":"; 76  77     lbl11.textColor = [UIColor redColor]; 78  79     [self.view addSubview:lbl11]; 80  83      UILabel *lbl2 = [[UILabel alloc]initWithFrame:CGRectMake(lbl11.right, lbl1.y, lbl1.width, lbl1.height)]; 84  85     lbl2.text = @"00"; 86  87     lbl2.textColor = [UIColor redColor]; 88  89     [self.view addSubview:lbl2]; 90  91     _lbl2 = lbl2; 92  95     UILabel *lbl22 = [[UILabel alloc]initWithFrame:CGRectMake(lbl2.right, lbl1.y, lbl11.width, lbl1.height)]; 96  97     lbl22.text = @":"; 98  99     lbl22.textColor = [UIColor redColor];100 101     [self.view addSubview:lbl22];102 103     UILabel *lbl3 = [[UILabel alloc]initWithFrame:CGRectMake(lbl22.right, lbl1.y, lbl1.width, lbl1.height)];104 105     lbl3.text = @"00";106 107     lbl3.textColor = [UIColor redColor];108 109     [self.view addSubview:lbl3];110 111     _lbl3 = lbl3;112 115     UILabel *lbl33 = [[UILabel alloc]initWithFrame:CGRectMake(lbl3.right, lbl1.y, lbl11.width, lbl1.height)];116 117     lbl33.text = @".";118 119     lbl33.textColor = [UIColor redColor];120 121     [self.view addSubview:lbl33]; 122 123     UILabel *lbl4 = [[UILabel alloc]initWithFrame:CGRectMake(lbl33.right, lbl1.y, lbl1.width, lbl1.height)];124 125     lbl4.text = @"00";126 127     lbl4.textColor = [UIColor redColor];128 129     [self.view addSubview:lbl4];130 131     _lbl4 = lbl4;132 137 }141 -(void)createButton{142  146 147     UIButton *btn1 = [[UIButton alloc]initWithFrame:CGRectMake(70, _lbl1.bottom+20, 60, 40)];148 149     [btn1 setTitle:@"開始" forState:UIControlStateNormal];150 151     [self.view addSubview:btn1];152 153     [btn1 setBackgroundImage:[UIImage imageNamed:@"logoff_btn_s"] forState:UIControlStateNormal];154 155     [btn1 setBackgroundImage:[UIImage imageNamed:@"submit_discussion_n"] forState:UIControlStateHighlighted];156 157     [btn1 addTarget:self action:@selector(start ) forControlEvents:UIControlEventTouchUpInside];158 163     UIButton *btn2 = [[UIButton alloc]initWithFrame:CGRectMake(btn1.right+10, btn1.y, btn1.width, btn1.height)];164 165     [btn2 setTitle:@"停止" forState:UIControlStateNormal];166 167     [self.view addSubview:btn2];168 169     [btn2 setBackgroundImage:[UIImage imageNamed:@"logoff_btn_s"] forState:UIControlStateNormal];170 171     [btn2 setBackgroundImage:[UIImage imageNamed:@"submit_discussion_n"] forState:UIControlStateHighlighted];172 173     [btn2 addTarget:self action:@selector(stop ) forControlEvents:UIControlEventTouchUpInside];174 179     UIButton *btn3 = [[UIButton alloc]initWithFrame:CGRectMake(btn2.right+10,btn1.y , btn1.width, btn1.height)];180 181     [btn3 setTitle:@"複位" forState:UIControlStateNormal];182 183     [self.view addSubview:btn3];184 185     [btn3 setBackgroundImage:[UIImage imageNamed:@"logoff_btn_s"] forState:UIControlStateNormal];186 187     [btn3 setBackgroundImage:[UIImage imageNamed:@"submit_discussion_n"] forState:UIControlStateHighlighted];188 189     [btn3 addTarget:self action:@selector(fuwei ) forControlEvents:UIControlEventTouchUpInside];190 191 }192 195 -(void)start{199     [[NSRunLoop mainRunLoop] addTimer:_timer forMode:NSRunLoopCommonModes];200 201     _isRunning = YES;202   204 205     if (_isRunning) {       //表示定時器正在運行206 207         [_timer setFireDate:[NSDate distantPast]];208 211     }else{212 213         [_timer setFireDate:[NSDate distantFuture]];214 215     }216 217 }218 221 -(void)stop{222 
225     _isRunning = !_isRunning;226 229     if (_isRunning) {       // 表示定時器正在運行230 233     }else{234 235         [_timer setFireDate:[NSDate distantFuture]];236 237     }238 239     _isRunning = NO;240 241 }242 245 -(void)fuwei{246 251         NSString* str4 = _lbl4.text;252 253         NSString* str3 = _lbl3.text;254 255         NSString* str2 = _lbl2.text;256 257         NSString* str1 = _lbl1.text;258 261         int x4 = [str4 intValue];262 263         int x3 = [str3 intValue];264 265         int x2 = [str2 intValue];266 267         int x1 = [str1 intValue];268 271         x4 = x3 = x2 = x1 = 0;272 275         NSString* str44 = [NSString stringWithFormat:@"%02d",x4];276 277         NSString* str33 = [NSString stringWithFormat:@"%02d",x3];278 279         NSString* str22 = [NSString stringWithFormat:@"%02d",x2];280 281         NSString* str11 = [NSString stringWithFormat:@"%02d",x1];282 283         _lbl4.text = str44;284 285         _lbl3.text = str33;286 287         _lbl2.text = str22;288 289         _lbl1.text = str11;290 293     _isRunning = !_isRunning;294 297     if (_isRunning) {       // 表示定時器正在運行298 301     }else{302 303         [_timer setFireDate:[NSDate distantFuture]];304 305     }306 307     _isRunning = NO;308 311 }312 315 -(void)createTimer{319     _timer = [NSTimer timerWithTimeInterval:0.01 target:self selector:@selector(move ) userInfo:nil repeats:YES];320 323     _isRunning = NO;324 327     //     下面這種方法建立的定時器，會自動的加入運行迴圈328 329     //    _timer = [NSTimer scheduledTimerWithTimeInterval:0.1 target:self selector:@selector(move) userInfo:nil repeats:YES];330 331 }332 334 335 -(void)move{336 339      NSString* str4 = _lbl4.text;340 341      NSString* str3 = _lbl3.text;342 343      NSString* str2 = _lbl2.text;344 345      NSString* str1 = _lbl1.text;346 349     int x4 = [str4 intValue];350 351     int x3 = [str3 intValue];352 353     int x2 = [str2 intValue];354 355     int x1 = [str1 intValue];356 359     x4++;360 363     if (x4 == 100 ) {364 365         x3 = x3 + 1;366 367         x4 = 0;368 369         if (x3 == 60) {370 371             x2 = x2 + 1;372 373             x3 = 0;374 375             if (x2 == 60 ) {376 377                 x1 = x1 + 1;378 379                 x2 = 0;380 381                 if (x1 == 24 ) {382 383                     x4 = x3 = x2 = x1 = 0;384 385                 }386 387             }388 389         }390 391     }392    394 395     NSString* str44 = [NSString stringWithFormat:@"%02d",x4];396 397     NSString* str33 = [NSString stringWithFormat:@"%02d",x3];398 399     NSString* str22 = [NSString stringWithFormat:@"%02d",x2];400 401     NSString* str11 = [NSString stringWithFormat:@"%02d",x1];402 403     _lbl4.text = str44;404 405     _lbl3.text = str33;406 407     _lbl2.text = str22;408 409     _lbl1.text = str11;   410 411 }412 413  @end

開始

 

停止

複位

源檔案在這裡，希望可以幫到你：http://pan.baidu.com/s/1kVhHiHh