2 alllllllll alllllllll 于 2013.03.12 10:22 提问

UITableView复制checkmark

试了很多方法也没解决,请高手帮忙看看啊。

在我滚动cellForRowAtIndexPath的时候,在tableView添加和删除选中标记,不知道为什么。

// Configure the cell...
cell.textLabel.text = [currencyList objectAtIndex:indexPath.row];

// Check to see what currency is currently selected and checkstyle
if ([selectedCurrency isEqualToString:cell.textLabel.text]) {

    // Add a tick to the selected row
    cell.accessoryType = UITableViewCellAccessoryCheckmark;

    // Change the text colour
    cell.textLabel.textColor = [UIColor colorWithRed:0 green:0 blue:0.5 alpha:1];
    self.checkedIndexPath = indexPath;
} else {
    UITableViewCell *uncheckCell = [self.tableView
                                    cellForRowAtIndexPath:self.checkedIndexPath];
    uncheckCell.accessoryType = UITableViewCellAccessoryNone;
    // Change the font colour back to black
    uncheckCell.textLabel.textColor = [UIColor colorWithRed:0 green:0 blue:0 alpha:1];
}

1个回答

redCoral_
redCoral_   2013.03.12 11:16
已采纳

不需要uncheck cellForRowAtIndexPath中的cell,只要重载选中的cell就OK了。

- (void)setCheckedIndexPath:(NSIndexPath *)indexPath
{
    NSIndexPath *uncheckIndexPath = self.checkedIndexPath;
    _checkedIndexPath = indexPath;
    [self.tableView reloadRowsAtIndexPaths:@[uncheckIndexPath]
                          withRowAnimation:UITableViewRowAnimationLeft];
}

再修改cellForRowAtIndexPath。需要注意,设置UITableViewCellAccessoryNone是给需要返回的cell。

// Configure the cell...
cell.textLabel.text = [currencyList objectAtIndex:indexPath.row];

// Check to see what currency is currently selected and checkstyle
if ([selectedCurrency isEqualToString:cell.textLabel.text]) {

    // Add a tick to the selected row
    cell.accessoryType = UITableViewCellAccessoryCheckmark;

    // Change the text colour
    cell.textLabel.textColor = [UIColor colorWithRed:0 green:0 blue:0.5 alpha:1];
    self.checkedIndexPath = indexPath;
} else {
    //If cell unchecked
    cell.accessoryType = UITableViewCellAccessoryNone;
    // Change the font colour back to black
    cell.textLabel.textColor = [UIColor colorWithRed:0 green:0 blue:0 alpha:1];
}
suannai0314
suannai0314 你这个账号现在无法投赞成票么?25声望是可以投赞成票的。
5 年多之前 回复
h3c4lenovo
h3c4lenovo Nice, reloadRowsAtIndexPaths这个方法用的很巧妙,学到一招!声望不够,不能支持,默默支持你!
5 年多之前 回复
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准确详细的回答,更有利于被提问者采纳,从而获得C币。复制、灌水、广告等回答会被删除,是时候展现真正的技术了!