kmpdfkit_demo/PDFViewer/View/HeaderFooterView/PDFHeadView.m

//
//  CPDFHeadView.m
//  PDFViewer
//
//  Created by kdanmobile_2 on 2022/12/7.
//

#import "PDFHeadView.h"

@implementation PDFHeadView

- (instancetype)initWithFrame:(CGRect)frame {
    self = [super initWithFrame:frame];
    if (self) {
        
        self.preLabel = [[UILabel alloc] init];
        [self.preLabel setText:@"1"];
        self.preLabel.font = [UIFont systemFontOfSize:6];
        [self.documentView addSubview:self.preLabel];
    }
    return self;
}

- (void)drawRect:(CGRect)rect {
    [super drawRect:rect];
    
    [self.documentView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.equalTo(self.mas_top);
        make.left.equalTo(self.mas_left);
        make.width.mas_equalTo(self.image.size.width / 9);
        make.height.mas_equalTo(self.image.size.height / 9);
    }];
    
    [self.preLabel mas_remakeConstraints:^(MASConstraintMaker *make) {
        make.top.equalTo(self.documentView.mas_top).offset(0.5);
        make.left.equalTo(self.documentView.mas_left).offset(0.5);
        make.height.mas_equalTo(10);
        make.width.mas_equalTo(20);
    }];
}

@end