标签宽度自适应，超距换行

最新推荐文章于 2024-01-04 12:19:31 发布

原创最新推荐文章于 2024-01-04 12:19:31 发布 · 356 阅读

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CC 4.0 BY-SA版权

文章标签：

#ios #objective-c

该博客详细介绍了如何使用Swift编程语言为iOS应用创建自定义的标签布局。通过遍历数据数组并计算每个标签的尺寸，动态调整布局，实现标签在屏幕上的排列。文章涵盖了标签按钮的初始化、设置属性、点击事件处理以及布局更新等内容，适用于希望提升用户界面灵活性的iOS开发者。

self.DataArr = @[@"标签一",@"标签二",@"标签三"];

- (void)createUI{
    CGFloat tagBtnX = 0;
    CGFloat tagBtnY = 0;
    for (NSInteger i= 0; i<self.DataArr.count; i++) {

        CGSize tagTextSize = [self. sizeWithFont:[UIFont systemFontOfSize:16] maxSize:CGSizeMake(WIDTH-32-32, 32)];
        if (tagBtnX+tagTextSize.width+40 > WIDTH-32) {
            tagBtnX = 0;
            tagBtnY += 30+16;
        }
        UIButton * tagBtn = [UIButton buttonWithType:UIButtonTypeCustom];
        tagBtn.tag = 100+i;
        tagBtn.frame = CGRectMake(tagBtnX, tagBtnY, tagTextSize.width+40, 32);
        [tagBtn setTitle:self.DataArr[i] forState:UIControlStateNormal];
        tagBtn.titleLabel.font = [UIFont systemFontOfSize:16];
        [HSMTOOL changeRoundLayerWithView:tagBtn WithRedio:16];
        if (i == 0) {
            [tagBtn setSemanticContentAttribute:UISemanticContentAttributeForceRightToLeft];
        }
        [tagBtn addTarget:self action:@selector(tagBtnClick:) forControlEvents:UIControlEventTouchUpInside];
        [self.BGView addSubview:tagBtn];

        tagBtnX = CGRectGetMaxX(tagBtn.frame)+11;
    }
}

-(void)tagBtnClick:(UIButton *)button{

button.tag -100;

}

- (CGSize)sizeWithFont:(UIFont *)font maxSize:(CGSize)maxSize
{
//    if (self.length <= 0) {
//        CGSize sizee = CGSizeMake(0.01f, 0.01f);
//        return sizee;
//    }else{
        NSDictionary *attrs = @{NSFontAttributeName : font};
        return [self boundingRectWithSize:maxSize options:NSStringDrawingUsesLineFragmentOrigin attributes:attrs context:nil].size;
//    }
}