點擊選中cell

在cell中

- (void)setModel:(SelectModel *)model {
    _model = model;
    
    if (model.isClick) {
        self.chooseImage.image = [UIImage imageNamed:@"friend_select"];
    }else {
        self.chooseImage.image = [UIImage imageNamed:@"friend_select_no"];
    }
    
    self.avartarImage.image = [UIImage imageNamed:model.address];
    self.usernameLabel.text = [NSString stringWithFormat:@"%@", model.username];
    
}

在控制器中

- (void)viewDidLoad {
    [super viewDidLoad];
    
    self.navigationItem.title = @"選擇好友";
    _dataArray = [NSMutableArray arrayWithCapacity:1];
    _selectArray = [NSMutableArray arrayWithCapacity:1];
    [self initWithTableView];
    [self getData];
    // Do any additional setup after loading the view from its nib.
}

- (void)initWithTableView {
    self.myTableView.dataSource = self;
    self.myTableView.delegate = self;
    
    [self.myTableView registerNib:[UINib nibWithNibName:[SelectedTableViewCell identifier] bundle:nil] forCellReuseIdentifier:[SelectedTableViewCell identifier]];
    
    self.myTableView.tableFooterView = [UIView new];
    self.myTableView.separatorStyle = UITableViewCellSeparatorStyleNone;
}

- (void)getData {
    NSArray *address = @[@"1", @"2", @"3", @"4", @"5", @"6", @"7", @"8"];
    NSArray *username = @[@"李秀琴", @"曾津", @"馬倫英", @"廖詩涵", @"張運", @"鄭珠", @"周秀嬌", @"張汝詩"];
    
    NSMutableArray *arr = [NSMutableArray arrayWithCapacity:1];
    for (int i=0; i<address.count; i++) {
        _model = [[SelectModel alloc] init];
        _model.isClick = NO;
        _model.address = address[i];
        _model.username = username[i];
        [arr addObject:_model];
    }
    [_dataArray addObjectsFromArray:arr];
    
    [self.myTableView reloadData];

}

- (IBAction)didConfirmClicked:(id)sender {
}


#pragma mark UITableViewDelegate, UITableViewDataSource

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
    return 1;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    return _dataArray.count;
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
    SelectedTableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:[SelectedTableViewCell identifier]];
    
    cell.model = _dataArray[indexPath.row];
    
    return cell;
}

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {
    return 44;
}

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
    [tableView deselectRowAtIndexPath:indexPath animated:YES];
    
    SelectModel *model = _dataArray[indexPath.row];
    if (model.isClick) {
        model.isClick = NO;
        [_selectArray removeObject:model];
        [_dataArray replaceObjectAtIndex:indexPath.row withObject:model];
    }else {
        model.isClick = YES;
        [_selectArray addObject:model];
        [_dataArray replaceObjectAtIndex:indexPath.row withObject:model];
    }
    [self.myTableView reloadData];
}