IOS UI-Button按鈕

標籤：

 1 #import "ViewController.h" 2  3 @interface ViewController () 4 { 5     UILabel *lable; 6     BOOL moveFlag; 7     NSInteger length; 8     UIButton *btn; 9     NSTimer *timer;10 }11 12 @end13 14 @implementation ViewController15 16 - (void)viewDidLoad {17     [super viewDidLoad];18     moveFlag = NO;19     length = 10;20     21     self.view.backgroundColor = [UIColor darkGrayColor];22     lable = [[UILabel alloc] init];23     lable.frame = CGRectMake(50, 100, 280, 50);24     lable.text = @"點我啊";25     lable.backgroundColor = [UIColor whiteColor];26     [self.view addSubview:lable];27     28     // 按鈕UIButton29     btn = [UIButton buttonWithType:UIButtonTypeCustom];30     // 設定按鈕座標、大小31     btn.frame = CGRectMake(170, 250, 50, 50);32     // 設定背景圖33     [btn setImage:[UIImage imageNamed:@"fire_down.png"] forState:UIControlStateNormal];34     [btn setImage:[UIImage imageNamed:@"blue_down.png"] forState:UIControlStateHighlighted];35 36     37     // 設定標題(狀態標題)38 //    [btn setTitle:@"開始" forState:UIControlStateNormal];39 //    [btn setTitle:@"按下" forState:UIControlStateHighlighted];40     41     // 給按鈕添加 [關聯事件]42     [btn addTarget:self action:@selector(touchMe) forControlEvents:UIControlEventTouchUpInside];43     // 添加背景色44     [btn setBackgroundColor:[UIColor cyanColor]];45     46     // 按鈕變圓47     btn.layer.cornerRadius = 20;48     // 添加按鈕到視圖上49     [self.view addSubview:btn];50 51 }52 53 -(void) touchMe54 {55     //判斷完了小球動沒有動56     if (moveFlag ==NO) {57         moveFlag = YES;58     }59     else60         moveFlag = NO;61     62     //當小球沒有動得時候，點小球-變動63     if (moveFlag) {64         timer = [NSTimer timerWithTimeInterval:0.1 target:self selector:@selector(bollMove) userInfo:nil repeats:YES];65         [[NSRunLoop currentRunLoop] addTimer:timer forMode:NSRunLoopCommonModes];66     }67     else68         [timer invalidate];69     //當小球動得時候，點小球-不動70     71 }72 73 -(void) bollMove74 {75     76     if (btn.frame.origin.y>600) {77         length = -10;78 79     }80     else if (btn.frame.origin.y<0)81     {82         length = 10;83     }84     85     CGRect rect = btn.frame;86     rect.origin.y += length;87     btn.frame = rect;88 89 }

 

IOS UI-Button按鈕