ios 简单实现tableView单选和多选功能

代码如下：

#import "ViewController.h"

@interface ViewController () {
    NSInteger index;
    BOOL isRadio;
}
@property (weak, nonatomic) IBOutlet UITableView *tableView;
@property(nonatomic,strong)NSMutableArray *datas;
@property(nonatomic,strong)NSMutableDictionary *mDic;
@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
    
    self.datas = [NSMutableArray array];
    self.mDic = [NSMutableDictionary dictionary];
    for (int i=0; i<100; i++) {
        [self.datas addObject:[NSString stringWithFormat:@"cell%d",i]];
        [self.mDic setObject:@0 forKey:@(i)];
    }
    [self.tableView reloadData];
}

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

-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"cell"];
    if (!cell) {
        cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:@"cell"];
    }
    cell.textLabel.text = self.datas[indexPath.row];
    
    if (isRadio) {
        if (indexPath.row == index) {
            cell.textLabel.textColor = [UIColor redColor];
        }else {
            cell.textLabel.textColor = [UIColor blackColor];
        }
    }else {
        if ([[self.mDic objectForKey:@(indexPath.row)] intValue]) {
            cell.textLabel.textColor = [UIColor redColor];
        }else {
            cell.textLabel.textColor = [UIColor blackColor];
        }
    }
    
    return cell;
}

-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
    index = indexPath.row;
    [self.mDic setObject:@1 forKey:@(indexPath.row)];
    [tableView reloadData];
}
- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

@end

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