自定义一个View DrawLineDrawLine.h#import <UIKit/UIKit.h>@protocol gridTouchDelete <NSObject>- (void)gridTouchColumn:(NSInteger)column touchRow:(NSInteger)row;@end@interface DrawLine : UIView@property(nonatomic, assign) id<gridTouchDelete>delegate;@end#import "DrawLine.h"#define GRID_WIDTH 44#define GRID_HEIGHT 44@implementation DrawLine- (id)initWithFrame:(CGRect)frame{    self = [super initWithFrame:frame];    if (self) {        // Initialization code    }    return self;}- (void)drawRect:(CGRect)rect{    CGContextRef context = UIGraphicsGetCurrentContext();        // 格子线条颜色    CGContextSetStrokeColorWithColor(context, [UIColor grayColor].CGColor);    CGContextBeginPath(context);        NSInteger numRows = 5;    float gridHeight = numRows*(GRID_HEIGHT+2)+1;        // 背景色    CGRect rectangleGrid = CGRectMake(0,0,self.frame.size.width,gridHeight);    CGContextAddRect(context, rectangleGrid);    CGContextSetFillColorWithColor(context, [[UIColor grayColor] colorWithAlphaComponent:0.2].CGColor);    CGContextFillPath(context);        for (int i = 0; i < 7; i++) {        //columns 列        CGContextMoveToPoint(context, i*(GRID_WIDTH+1)+i*1, 0);        CGContextAddLineToPoint(context, i*(GRID_WIDTH+1)+i*1, gridHeight);                if (i > numRows) continue;                //rows 行        CGContextMoveToPoint(context, 0, i*(GRID_HEIGHT+1)+i*1+1);        CGContextAddLineToPoint(context, self.frame.size.width, 0+i*(GRID_HEIGHT+1)+i*1+1);        }    CGContextStrokePath(context);    CGContextSetAllowsAntialiasing(context, YES);        NSInteger gridNum = numRows * 7;    for (int i = 0; i < gridNum; i ++) {        int targetColumn = i%7;        int targetRow = i/7;        int targetX = targetColumn * (GRID_WIDTH+2)+15;        int targetY =  targetRow * (GRID_HEIGHT+2)+15;                 NSString *gridStr = [NSString stringWithFormat:@"%d",i+1];                if ([[[UIDevice currentDevice] systemVersion] floatValue] >=7.0) {            UIColor *fontColor;            if (targetColumn == 0 || targetColumn == 6) {                fontColor = [UIColor redColor];            }            else            {                fontColor = [UIColor blackColor];            }                        [gridStr drawInRect:CGRectMake(targetX, targetY, self.frame.size.width, GRID_WIDTH) withAttributes:@{NSFontAttributeName:[UIFont fontWithName:@"HelveticaNeue-Bold" size:17],NSForegroundColorAttributeName:fontColor}];        }        else        {            [gridStr drawInRect:CGRectMake(targetX, targetY, self.frame.size.width, GRID_WIDTH) withFont:[UIFont fontWithName:@"HelveticaNeue-Bold" size:17] lineBreakMode:NSLineBreakByClipping alignment:NSTextAlignmentCenter];                        CGContextSetFillColorWithColor(context,[UIColor redColor].CGColor);        }           }}-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{    UITouch *touch = [touches anyObject];    CGPoint touchPoint = [touch locationInView:self];            float xLocation = touchPoint.x;    float yLocation = touchPoint.y;        int column = floorf(xLocation/(GRID_HEIGHT+2));    int row = floorf(yLocation/(GRID_WIDTH+2));        if ([_delegate respondsToSelector:@selector(gridTouchColumn:touchRow:)]) {        [_delegate gridTouchColumn:column touchRow:row];    }}MainViewController- (void)viewDidLoad{    [super viewDidLoad];    // Do any additional setup after loading the view.        DrawLine *lineView = [[DrawLine alloc]initWithFrame:CGRectMake(0, 84, self.view.frame.size.width, 600)];    lineView.backgroundColor = [UIColor clearColor];    lineView.delegate = self;    [self.view addSubview:lineView];}- (void)gridTouchColumn:(NSInteger)column touchRow:(NSInteger)row{    NSLog(@"行:%d,列:%d",column,row);}