IOS 纯代码自定义UIView案例

本文主要是介绍IOS 纯代码自定义UIView案例，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

#import <UIKit/UIKit.h>NS_ASSUME_NONNULL_BEGIN@interface OrderAfterPeriodSelectNumView : UIView
//左边标题
@property (nonatomic,strong) UILabel *titleLab;
//数量
@property (nonatomic,strong) UILabel *numLab;@end

#import "OrderAfterPeriodSelectNumView.h"
@interface OrderAfterPeriodSelectNumView()
@property (nonatomic, assign) CGFloat titleLabWidth;
@end@implementation OrderAfterPeriodSelectNumView#pragma mark - 原始初始化方法// 1、首先调用init方法
- (instancetype)init{if (self = [super init]) {[self initUI];}return self;
}// 2、然后调用initWithFrame方法
- (instancetype)initWithFrame:(CGRect)frame{if (self =[super initWithFrame:frame]) {[self initUI];}return self;
}
// 初始化UI控件
- (void) initUI{UILabel *titleLab = [[UILabel alloc] init];titleLab.textColor = [UIColor colorWithHexString:@"333333"];titleLab.font = [UIFont systemFontOfSize:14];titleLab.textAlignment = NSTextAlignmentLeft;titleLab.text = @"退款数量";[self addSubview:titleLab];_titleLab = titleLab;UILabel *numLab = [[UILabel alloc] init];titleLab.textColor = [UIColor colorWithHexString:@"333333"];numLab.font = [UIFont systemFontOfSize:14];numLab.textAlignment = NSTextAlignmentRight;numLab.text = @"0";[self addSubview:numLab];_numLab = numLab;//获取字符串的宽高CGRect rect = [titleLab.text boundingRectWithSize:CGSizeMake(SCREENWIDTH, MAXFLOAT) options:NSStringDrawingTruncatesLastVisibleLine | NSStringDrawingUsesLineFragmentOrigin | NSStringDrawingUsesFontLeading attributes:@{NSFontAttributeName: [UIFont systemFontOfSize:14]} context:nil];_titleLabWidth = rect.size.width;}
// 设置UI控件的frame
- (void)layoutSubviews{[super layoutSubviews];// 1.获取当前控件的尺寸CGFloat width = self.frame.size.width;CGFloat height = self.frame.size.height;// 2.设置子控件的frameself.titleLab.frame = CGRectMake(16, 0, self.titleLabWidth, height);self.numLab.frame = CGRectMake(16+self.titleLabWidth, 0, width - (16+self.titleLabWidth+16), height);}@end

添加到UIStackView

OrderAfterPeriodSelectNumView *numView = [[OrderAfterPeriodSelectNumView alloc] init];
[numView mas_makeConstraints:^(MASConstraintMaker *make) {make.height.equalTo(@(50));}];
self.numView = numView;
[self.stackView addArrangedSubview:numView];

这篇关于IOS 纯代码自定义UIView案例的文章就介绍到这儿，希望我们推荐的文章对编程师们有所帮助！

---