保持按钮选中状态,当点击另一个按钮后之前被选中的按钮恢复原样 实现代码

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//可直接复制 测试

#import "ViewController.h"

@interface ViewController ()

{

    NSInteger num;

}

@end

@implementation ViewController

- (void)viewDidLoad {

    [super viewDidLoad];

    num = -1 ;

    [self layoutView];

}

- (void)layoutView

{

         int totalloc=3;

    int count = 6;

         CGFloat appvieww=100;

         CGFloat appviewh=100;

         CGFloat margin=(self.view.frame.size.width -totalloc*appvieww)/(totalloc+1);

         for (int i=0; i<count; i++) {

                 int row=i/totalloc;

                 int loc=i%totalloc;

                 CGFloat appviewx=margin+(margin+appvieww)*loc;

                 CGFloat appviewy=margin+(margin+appviewh)*row;

             UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];

             button.frame = CGRectMake(appviewx, appviewy, appvieww, appviewh);

             [button setTitle:@"按钮" forState:UIControlStateNormal];

             [button setTitleColor:[UIColor blueColor] forState:UIControlStateNormal];

             [button setTitleColor:[UIColor redColor] forState:UIControlStateSelected];

             button.tag = i +1;

             [button addTarget:self action:@selector(click:) forControlEvents:UIControlEventTouchUpInside];

             [self.view addSubview:button];

             }

}

- (void)click:(UIButton *)button

{

    UIButton *btn1 = (UIButton *)[self.view viewWithTag:num];

    if (num != 0)

    {

        btn1.selected = NO;

    }

    num = button.tag;

    button.selected = YES;

}

@end 

@end

保持按钮选中状态,当点击另一个按钮后之前被选中的按钮恢复原样 实现代码

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原文地址：http://www.cnblogs.com/qimingtainanle/p/4874711.html