IGListKit/Examples/Examples-iOS/IGListKitExamples/Views/PersonCell.m

/*
 * Copyright (c) Facebook, Inc. and its affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */

#import "PersonCell.h"

#import "PersonModel.h"

@interface PersonCell ()
@property (nonatomic, strong) UIView *avatarView;
@property (nonatomic, strong) UILabel *nameLabel;
@property (nonatomic, strong) UIView *separatorView;
@property (nonatomic, assign) CGFloat separatorHeight;
@end

@implementation PersonCell

- (instancetype)init {
    if (self = [super init]) {
        [self setupSubviews];
    }
    return self;
}

- (instancetype)initWithFrame:(CGRect)frame {
    if (self = [super initWithFrame:frame]) {
        [self setupSubviews];
    }
    return self;
}

- (void)setupSubviews {
    self.avatarView = [[UIView alloc] init];
    self.avatarView.backgroundColor = [UIColor colorWithWhite:0.85 alpha:1.0];
    [self.contentView addSubview:self.avatarView];

    self.nameLabel = [[UILabel alloc] init];
    self.nameLabel.textAlignment = NSTextAlignmentLeft;
    [self.contentView addSubview:self.nameLabel];

    self.separatorView = [[UIView alloc] init];
    [self.contentView addSubview:self.separatorView];
    if (@available(iOS 13.0, *)) {
        self.nameLabel.textColor = [UIColor labelColor];
        self.separatorView.backgroundColor = [UIColor separatorColor];
    } else {
        self.nameLabel.textColor = [UIColor darkTextColor];
        self.separatorView.backgroundColor = [UIColor colorWithWhite:0.5 alpha:1.0];
    }
    self.separatorHeight = (1 / [UIScreen mainScreen].scale);
}

- (void)layoutSubviews {
    [super layoutSubviews];

    const CGFloat outerInset = 10;
    const CGRect bounds = self.contentView.bounds;
    const CGRect insetBounds = CGRectInset(bounds, outerInset, outerInset);
    const CGFloat avatarViewWidth = insetBounds.size.height;

    const CGRect avatarViewFrame = CGRectMake(outerInset, outerInset, avatarViewWidth, avatarViewWidth);
    if (!CGRectEqualToRect(avatarViewFrame, self.avatarView.frame)) {
        self.avatarView.layer.cornerRadius = round(avatarViewWidth / 2.0);
        self.avatarView.layer.masksToBounds = YES;
        self.avatarView.frame = avatarViewFrame;
    }

    const CGFloat avatarLabelInset = 8;
    self.nameLabel.frame = CGRectMake(CGRectGetMaxX(avatarViewFrame) + avatarLabelInset,
                                      outerInset,
                                      CGRectGetWidth(insetBounds) - avatarViewWidth - avatarLabelInset * 2,
                                      CGRectGetHeight(insetBounds));

    self.separatorView.frame = CGRectMake(0,
                                          CGRectGetHeight(bounds) - self.separatorHeight,
                                          CGRectGetWidth(bounds),
                                          self.separatorHeight);
}

static NSAttributedString *AttributedStringForPerson(PersonModel *person) {
    NSMutableAttributedString *string = [NSMutableAttributedString new];
    [string appendAttributedString:[[NSAttributedString alloc] initWithString:person.firstName
                                                                   attributes:@{NSFontAttributeName:[UIFont boldSystemFontOfSize:15.0]}]];
    [string appendAttributedString:[[NSAttributedString alloc] initWithString:@" "
                                                                   attributes:@{NSFontAttributeName:[UIFont boldSystemFontOfSize:15.0]}]];
    [string appendAttributedString:[[NSAttributedString alloc] initWithString:person.lastName
                                                                   attributes:@{NSFontAttributeName:[UIFont systemFontOfSize:15.0]}]];
    return string;
}

- (void)setPerson:(PersonModel *)person {
    _person = [person copy];

    self.nameLabel.attributedText = AttributedStringForPerson(person);
}

@end