iOS 怎么重写UIView类的touchsBeguh方法

Question

我要实现 点击屏幕记录点击的位置存放到单例数组中;
求解答;
求代码演示;

Answer 1

// 不知道是不是这个意思？
#import "ViewController.h"

@interface ViewController ()
@property (nonatomic,copy)NSMutableArray *array;
@end

@implementation ViewController

• (NSMutableArray *)array{ if (!_array) { _array = [NSMutableArray array]; } return _array; }

• (void)viewDidLoad {
  [super viewDidLoad];
  // Do any additional setup after loading the view, typically from a nib.
  }

• (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{
  // 获取点击位置
  UITouch *touch = [touches anyObject];
  CGPoint p = [touch locationInView:self.view];
  NSLog(@"坐标：（%f,%f）",p.x,p.y);
  // 需要将CGPoint类型的坐标点转为 NSValue类型存放到数组中
  NSValue *pValue = [NSValue valueWithCGPoint:p];
  [self.array addObject: pValue];
  }
  @end