动态更新 UILabel 在 UIView 上的位置取决于它们的文本值答案

【问题标题】：Dynamically update UILabel's position on UIView depend on their text value动态更新 UILabel 在 UIView 上的位置取决于它们的文本值
【发布时间】：2016-03-29 20:23:50
【问题描述】：

我从网络上获取这些值。如果所有值都来自网络，则此屏幕看起来很酷。

在没有数据的情况下，如下所示。

我用过这段代码

//Purchasae info
    {
        NSInteger heightToDecrease = 0;
        NSInteger heightToIncrease = 0;
        // NSInteger LABEL_HEIGHT = 18;

        maximumSize = CGSizeZero;
        textSize = CGSizeZero;

        //purchaseCostLabel
        heightToDecrease += self.PurchsCostHeightConstrains.constant;
        maximumSize = CGSizeMake(self.purchaseCostLabel.frame.size.width, 999);
        textSize = [UtilityHandler textSizeOfString:self.purchaseCostLabel.text font:self.purchaseCostLabel.font maxSize:maximumSize];
        NSInteger purchaseCostLabelHeight = textSize.height+SPACE_PADDING;
        self.PurchsCostHeightConstrains.constant = purchaseCostLabelHeight;
        totalHeightToIncrease += self.PurchsCostHeightConstrains.constant;

        //insurance
        heightToDecrease += self.insuranceHeightConstraints.constant;
        maximumSize = CGSizeMake(self.purchaseInsuranceLabel.frame.size.width, 999);
        textSize = [UtilityHandler textSizeOfString:self.purchaseInsuranceLabel.text font:self.purchaseInsuranceLabel.font maxSize:maximumSize];
        NSInteger insCostLabelHeight = textSize.height+SPACE_PADDING;
        self.insuranceHeightConstraints.constant = insCostLabelHeight;
        totalHeightToIncrease += self.insuranceHeightConstraints.constant;

        //shipping
        heightToDecrease += self.shippingHeightConstarants.constant;
        maximumSize = CGSizeMake(self.shippingLabel.frame.size.width, 999);
        textSize = [UtilityHandler textSizeOfString:self.shippingLabel.text font:self.shippingLabel.font maxSize:maximumSize];
        NSInteger shippingLabelHeight = textSize.height+SPACE_PADDING;
        self.shippingHeightConstarants.constant = shippingLabelHeight;
        totalHeightToIncrease += self.shippingHeightConstarants.constant;

        //conservation
        heightToDecrease += self.conserVHeightConstraints.constant;
        maximumSize = CGSizeMake(self.conservationLabel.frame.size.width, 999);
        textSize = [UtilityHandler textSizeOfString:self.conservationLabel.text font:self.conservationLabel.font maxSize:maximumSize];
        NSInteger conserLabelHeight = textSize.height+SPACE_PADDING;
        self.conserVHeightConstraints.constant = conserLabelHeight;
        totalHeightToIncrease += self.conserVHeightConstraints.constant;
        //storage
        heightToDecrease += self.storageHeightConstraints.constant;
        maximumSize = CGSizeMake(self.storageLabel.frame.size.width, 999);
        textSize = [UtilityHandler textSizeOfString:self.storageLabel.text font:self.storageLabel.font maxSize:maximumSize];
        NSInteger storagLabelHeight = textSize.height+SPACE_PADDING;
        self.storageHeightConstraints.constant = storagLabelHeight;
        totalHeightToIncrease += self.storageHeightConstraints.constant;
        //Frameing
        heightToDecrease += self.framingHeightConstraints.constant;
        maximumSize = CGSizeMake(self.shippingLabel.frame.size.width, 999);
        textSize = [UtilityHandler textSizeOfString:self.shippingLabel.text font:self.shippingLabel.font maxSize:maximumSize];
        NSInteger framLabelHeight = textSize.height+SPACE_PADDING;
        self.framingHeightConstraints.constant = framLabelHeight;
        totalHeightToIncrease += self.framingHeightConstraints.constant;

        // set content view height constraint
        self.purchaseInformationViewHeightConstraint.constant -= heightToDecrease;
        // set content view height constraint
        self.purchaseInformationViewHeightConstraint.constant += heightToIncrease;


    }

那么如何更新标签框架，以便任何标签可以占据空白标签的位置？

【问题讨论】：

是的，我正在使用自动布局
可以，但效果不佳。 0.0 因为它是 cgfloat
您是否考虑过为购买信息使用单一标签？根据您拥有的信息（插入新行）创建单个字符串并设置单个标签的字符串属性
部分按情节提要和代码

标签： ios objective-c swift autolayout uilabel

【解决方案1】：

为您的标签使用情节提要并仅使用单个标签将您的标签设置为具有所有 4 个约束，左、右、上、下设置行数 0。它适用于您的文本

【讨论】：