按钮创建

//button创建
-(void)initUI
{
    NSArray *imageArr =[NSArray arrayWithObjects:@"hf",@"zfb",@"cft",@"yhk", nil];  //正常状态
    NSArray *hImageArr =[NSArray arrayWithObjects:@"hf0",@"zfb0",@"cft0",@"yhk0", nil];  //高亮
    NSArray *labelArr =[NSArray arrayWithObjects:@"兑换话费",@"支付宝",@"财付通",@"银行卡", nil];  //选项
    
    for (int i=0; i<4; i++)
    {
        UIButton* button = [UIButton buttonWithType:UIButtonTypeCustom];
        [button setBackgroundImage:[UIImage imageNamed:[imageArr objectAtIndex:i]] forState:UIControlStateNormal];
        [button setBackgroundImage:[UIImage imageNamed:[hImageArr objectAtIndex:i]] forState:UIControlStateHighlighted];
        
        //视图布局
        button.frame = CGRectMake(45+150*i, 100, 142/2,142/2);
        if (i>1)
        {
            button.frame = CGRectMake(45+150*(i-2),260, 142/2,142/2);
        }
        button.tag=i;
        [button addTarget:self action:@selector(buttonClick:) forControlEvents: UIControlEventTouchUpInside];
        [self.view addSubview:button];
        
        UILabel * label=[[UILabel alloc]initWithFrame:CGRectMake(button.frame.origin.x-10,button.frame.origin.y+80 , 100, 30)];
        label.text=[labelArr objectAtIndex:i];
        label.textAlignment=NSTextAlignmentCenter;
        label.backgroundColor=[UIColor clearColor];
        label.textColor=[UIColor blackColor];
        [self.view addSubview:label];
    }
}

//点击事件
-(void)buttonClick:(UIButton *)btn
{
    switch (btn.tag) {
        case 0:
             NSLog(@"兑换话费");
            break;
         case 1:
            NSLog(@"支付宝");
            break;
        case 2:
             NSLog(@"财付通");
            break;
        case 3:
             NSLog(@"银行卡");
            break;
        default:
            break;
    }
}

对Button进行一次封装  http://blog.csdn.net/duxinfeng2010/article/details/8687203