iOS之城市列表

有時候需要用到城市列表，作爲地址選擇，所以寫了個demo。

核心代碼：

#pragma mark - 獲取城市數據
-(void)getCityData
{
    NSString *path=[[NSBundle mainBundle] pathForResource:@"citydict"
                                                   ofType:@"plist"];
    self.cities = [NSMutableDictionary dictionaryWithContentsOfFile:path];
    
    [self.keys addObjectsFromArray:[[self.cities allKeys] sortedArrayUsingSelector:@selector(compare:)]];
    
    //添加熱門城市
    NSString *strHot = @"熱";
    [self.keys insertObject:strHot atIndex:0];
    [self.cities setObject:_arrayHotCity forKey:strHot];
}

#pragma mark - tableView
-(CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section
{
    return 20.0;
}

-(UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section
{
    UIView *bgView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 320, 20)];
    bgView.backgroundColor = [UIColor lightGrayColor];
    
    UILabel *titleLabel = [[UILabel alloc] initWithFrame:CGRectMake(13, 0, 250, 20)];
    titleLabel.backgroundColor = [UIColor clearColor];
    titleLabel.textColor = [UIColor blackColor];
    titleLabel.font = [UIFont systemFontOfSize:12];
    
    NSString *key = [_keys objectAtIndex:section];
    if ([key rangeOfString:@"熱"].location != NSNotFound) {
        titleLabel.text = @"熱門城市";
    }
    else
        titleLabel.text = key;
    
    [bgView addSubview:titleLabel];
    
    return bgView;
}

- (NSArray *)sectionIndexTitlesForTableView:(UITableView *)tableView
{
    return _keys;
}

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
    // Return the number of sections.
    return [_keys count];
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    // Return the number of rows in the section.
    NSString *key = [_keys objectAtIndex:section];
    NSArray *citySection = [_cities objectForKey:key];
    return [citySection count];
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    static NSString *CellIdentifier = @"Cell";
    
    NSString *key = [_keys objectAtIndex:indexPath.section];
    
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
    if (cell == nil) {
        cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] ;
        cell.backgroundColor = [UIColor clearColor];
        cell.contentView.backgroundColor = [UIColor clearColor];
        cell.selectionStyle = UITableViewCellSelectionStyleNone;
        
        [cell.textLabel setTextColor:[UIColor blackColor]];
        cell.textLabel.font = [UIFont systemFontOfSize:18];
    }
    cell.textLabel.text = [[_cities objectForKey:key] objectAtIndex:indexPath.row];
    return cell;
}

demo下載地址：點擊打開鏈接