Swift - The length of text determines the width and height of controls such as Label - Code World

Swift - The length of text determines the width and height of controls such as Label

Others 2020-10-14 18:56:51 views: null

这是一个常用的需求：比如微信未读消息的那个显示个数的小图标，个位十位百位下的数字当然有不同的长度，这样label也应该长度随内容而变。

比如label高不变长可变：
label.text = "123"
label.frame.size.width = label.text?.boundingRect(with: CGSize(width: CGFloat(MAXFLOAT), height: 20), context: nil).size.width 

重点在于：
text?.boundingRect(with: CGSize(width: CGFloat(MAXFLOAT), height: 20)
拿到text的长度，即text的MAXFLOAT即可。

高度同理:
CGSize(width: 20, height: CGFloat(MAXFLOAT))

Guess you like

Origin blog.csdn.net/SoftwareDoger/article/details/104862069

Swift - The length of text determines the width and height of controls such as Label

ios swift5 UIlabel calculates the height and width according to the text (content), the height is adaptive, but the height boundingRectWithSize must be known in advance

iOS-UILabel calculates label width based on text and font size; and adaptive height

Android get text width and height

[Turn] Get the Android controls the width and height

Swift -> Modify the width of the image UIImage, and adapt the height

Swift -> Modify the width of the image UIImage, and adapt the height

The method of calculating the width and height of text in canvas

Swift UILabel height adaptive (when the UILabel height and width dynamically adapt to the number of words in the text, the upper and lower parts of the UILabel will be left blank and cannot be filled up)

A way for Vaadin to obtain the Top, Left, Width, and Height of controls

video label control what's playing width and height

4001 packing box automatically calculates the length, width and height

The spacing between css text characters, the length of spaces between label words, the minimum height of element line boxes (line boxes), the indentation before the first line of text content of block elements

css text is centered horizontally and vertically (the parent element div has known width and height and unknown width and height)

textarea text area width and height (width, height) automatically adapt to change processing

textarea text area width and height (width, height) automatically adapt to change processing

JAVA creates a Box class (cuboid), and defines three variables in the Box class, respectively representing the length (length), width (width) and height (heigth) of the cuboid

Android introductory tutorial | Introduction to TextView (width, height, text, spacing)

Let textarea automatically adjust its height according to the length of the text

LAMMPS generates in file script for rough surface (adjustable microstructure height, length and width)

Use Metashape software to measure the length, width and height of the 3D reconstruction model

Swift determines whether it is NULL

ConstrainedBox defined width and height

CSS-- width and height

css in height, width defaults

PC width and height adaptive

Get the screen width and height

Monitor browser width and height

BOM screen width and height

The depth of thinking determines the height of the workplace

Recommended

Ranking

SpringBoot-integrate redis

[Sword pointing to offer] Interview question 03: Repeated numbers in an array

Arrangement "Offer Penalty for prove safety" string

Browser prevent the automatic generation of fill and Echo have been saved account solutions

Work hard and never slacken——2022 Yinmai Information Year-End Summary

Install jdk7 on Linux system

App common dependency management tools

EduCoder-Web程序设计基础-html5— 给表单组件添加说明-第1关：label标签相关概念

Machine learning - clustering - density clustering algorithm notes

Ant's large model is exposed, AI+ finance enters the "big model" era

Daily

More

2024-04-30(36)

2024-04-29(5)

2024-04-28(12)

2024-04-27(29)

2024-04-26(22)

2024-04-25(32)

2024-04-24(30)

2024-04-23(30)

2024-04-22(5)

2024-04-21(0)