iOS遇到的细节问题

来源：互联网发布：北京大数据云计算骗局编辑：程序博客网时间：2024/05/17 06:52

1.为UILable添加点击手势

UILabel *text01 = [[UILabel alloc]initWithFrame:CGRectMake(0, mView.height/5+1, mView.width, mView.height/5)];

text01.text = @"还没有账号？点击注册吧！";

text01.textColor = [kTabBarColor];

text01.textAlignment = NSTextAlignmentCenter;

text01.font = [UIFont systemFontOfSize:14];

text01.userInteractionEnabled = YES;／／重要，很容易被遗忘的一句话

UITapGestureRecognizer *tapToRegister = [[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(toRegister:)];

tapToRegister.numberOfTouchesRequired = 1;//只处理一个手指的触碰事件

[text01 addGestureRecognizer:tapToRegister];

[mView addSubview:text01];

#pragma mark -点击，跳转到注册页面

-(void)toRegister:(UITapGestureRecognizer *)gesture{

NSLog(@"go to register...");

}

2.如何制作圆形图片UIImageView，并添加白色边框

UIImageView *mHeadImg = [[UIImageView alloc]initWithFrame:CGRectMake(kScreen_width/2-35, kScreen_height/5-10, 70, 70)];

mHeadImg.image = [UIImage imageNamed:@"圆形人物上传头像"];

mHeadImg.layer.borderColor = [[UIColor whiteColor] CGColor];

mHeadImg.layer.borderWidth = 2.0f;

mHeadImg.layer.cornerRadius = 35;

[self.view addSubview:mHeadImg];

效果图：

3.如何实现这种效果：

代码如下：

self.navigationController.navigationBar.barTintColor = [UIColor colorWithRed:0.0f/255.0 green:194.0f/255.0blue:194.0f/255.0 alpha:1.0];

[self.navigationController.navigationBar setTitleTextAttributes:

@{NSFontAttributeName:[UIFont systemFontOfSize:18],

NSForegroundColorAttributeName:[UIColor whiteColor]}];

self.navigationItem.title = @"设置";

self.view.backgroundColor = [UIColor colorWithRed:235/255.0 green:236/255.0 blue:237/255.0 alpha:1];

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