self.navigationItem.titleView

最新推荐文章于 2025-03-27 17:13:31 发布

Alisck

最新推荐文章于 2025-03-27 17:13:31 发布

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分类专栏： iOS iOS，控件

本文链接：https://blog.youkuaiyun.com/qq_36747738/article/details/79230846

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新的titleView，添加UIbutton的方法  ios11更加坑intrinsicContentSize，这个方法，就不管了，直接固定大小居中

UIView * container = [[UIView alloc]initWithFrame:CGRectZero];
UIButton * button = [[UIButton alloc]initWithFrame:CGRectZero];
[button addTarget:self action:@selector(backToHOmePage) forControlEvents:UIControlEventTouchUpInside];
[button setImage:[UIImage imageNamed:@"clanak_default.png"] forState:UIControlStateNormal];
[button sizeToFit];
[container addSubview:button];
[button release];
[container sizeToFit];
self.navigationItem.titleView = container;
[container release];

添加两个lable的方法

    UILabel *titleLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, 0, 0)];
    titleLabel.backgroundColor = [UIColor clearColor];
    titleLabel.textColor = [UIColor whiteColor];
    titleLabel.font = [UIFont boldSystemFontOfSize:20];
    titleLabel.text = @"Your Title";
    [titleLabel sizeToFit];

    UILabel *subTitleLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 22, 0, 0)];
    subTitleLabel.backgroundColor = [UIColor clearColor];
    subTitleLabel.textColor = [UIColor whiteColor];
    subTitleLabel.font = [UIFont systemFontOfSize:12];
    subTitleLabel.text = @"Your subtitle";
    [subTitleLabel sizeToFit];

    UIView *twoLineTitleView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, MAX(subTitleLabel.frame.size.width, titleLabel.frame.size.width), 30)];
    [twoLineTitleView addSubview:titleLabel];
    [twoLineTitleView addSubview:subTitleLabel];

    float widthDiff = subTitleLabel.frame.size.width - titleLabel.frame.size.width;

    if (widthDiff > 0) {
        CGRect frame = titleLabel.frame;
        frame.origin.x = widthDiff / 2;
        titleLabel.frame = CGRectIntegral(frame);
    }else{
        CGRect frame = subTitleLabel.frame;
        frame.origin.x = abs(widthDiff) / 2;
        subTitleLabel.frame = CGRectIntegral(frame);
    }

    self.navigationItem.titleView = twoLineTitleView;