UIButton 的简单运用
//简单制作一个关灯游戏
//点击某一个灯，它，包括它四周的灯一起变化，关了的亮，亮的关
//建一个分类，它继承与UIView
#import <UIKit/UIKit.h>
//声明一个方法
@interface UIView (Change)
-(void)change;
@end
//实现这个方法
#import "UIView+Change.h"
@implementation UIView (Change)
-(void)change
{
//红的变黑，黑的变红
if (self.backgroundColor==[UIColor redColor]) {
self.backgroundColor=[UIColor blackColor];
}
else
{
self.backgroundColor=[UIColor redColor];
}
}
@end
#import <UIKit/UIKit.h>
#import "UIView+Change.h"
@interface ViewController : UIViewController
//定义一个按钮控件的属性
@property (strong,nonatomic) UIButton *button;
//声明一个判断的方法
-(void)chose:(UIButton *)button;
@end
#import "ViewController.h"
@interface ViewController ()
@end
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
//循环产生按钮视图 j=5，代表横排五个，i=9 代表竖排9个
for (int i=1; i<=9; i++)
{
for (int j=1; j<=5; j++)
{
//Button的初始化
self.button = [UIButton buttonWithType:UIButtonTypeCustom];
self.button=[[UIButton alloc]initWithFrame:CGRectMake(19*j+(j-1)*60, 19.6*i+(i-1)*60, 60, 60)];
//将Button创建为圆角矩形
[self.button.layer setCornerRadius:10.0];
//给Button上初始颜色为红色，当成灯亮
self.button.backgroundColor=[UIColor redColor];
//给创建的每一个Button按钮视图赋一个初始tag值
self.button.tag=(i-1)*5+j;
self.button.selected=YES;
[self.view addSubview:self.button];
//当触发事件UIControlEventTouchDown发生时，调用方法chose:
[self.button addTarget:self action:@selector(chose:) forControlEvents:UIControlEventTouchDown];
}
}
}
//判断方法
-(void)chose:(UIButton *)button
{
self.button=button;
//将Button的tag值转化为int类型赋给num
int num=(int)self.button.tag;
//第num个Button变色
[[self.view viewWithTag:num] change];
//判断第num个Button周围有没有其他的Button，有调用change方法，变色
if ((num-1)>0&&((num%5)!=1)) {
[[self.view viewWithTag:(num-1)] change];
}
if ((num-5)>0) {
[[self.view viewWithTag:(num-5)] change];
}
if ((num+1)<=45&&((num%5)!=0)) {
[[self.view viewWithTag:(num+1)] change];
}
if ((num+5)<=45) {
[[self.view viewWithTag:(num+5)] change];
}
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
@end
