Question

我只想使用UIButton代替检查标记即可成功添加按钮并使其在选中行时作为复选标记，但只有行选择是工作按钮不明智不是我想让它工作按钮也是如此作为细胞选择截图：

http://i.imgur.com/aXiBsfU.png

http://i.imgur.com/hQddEGk.png

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
if (indexPath.row==0)
{
    if (selectAll==0)
    {
        selectAll=1;
        [self.arrForIndPaths removeAllObjects];
    }
    else
    {
        selectAll=0;
        [self.arrForIndPaths removeAllObjects];
    }
}
else
{
    if (selectAll!=1)
    {
        if([self.arrForIndPaths containsObject:indexPath])
        {
            [self.arrForIndPaths removeObject:indexPath];
        }
        else
        {
            [self.arrForIndPaths addObject:indexPath];
        }
    }
    else
    {
        selectAll=0;
        if([self.arrForIndPaths containsObject:indexPath])
        {
            [self.arrForIndPaths removeObject:indexPath];
        }
        else
        {[self.arrForIndPaths addObject:indexPath];}}}[tableView reloadData];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static const NSInteger btnTag = 1;
static NSString *MyIdentifier = @"SearchResult";
UITableViewCell *cell;
if (cell == nil)
{
    cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:MyIdentifier];
}
UILabel *lblText = [[UILabel alloc]initWithFrame:CGRectMake(40, 0, 400, 55)];
UIButton *btnCheck = [[UIButton alloc]initWithFrame:CGRectMake(845, 10, 35, 28)];
btnCheck.contentVerticalAlignment = UIControlContentVerticalAlignmentBottom;
btnCheck.contentHorizontalAlignment = UIControlContentHorizontalAlignmentLeft;
[btnCheck setImage:[UIImage imageNamed:@"checkbox_white.png"] forState:UIControlStateNormal];
[btnCheck setImage:[UIImage imageNamed:@"checked_white.png"] forState:UIControlStateSelected];
[btnCheck setImage:[UIImage imageNamed:@"checked_white.png"] forState:UIControlStateHighlighted];
[btnCheck addTarget:self action:@selector(doneBtn:) forControlEvents:UIControlEventTouchUpInside];
btnCheck.tag = btnTag;
[cell.contentView addSubview:lblText];
[cell addSubview:btnCheck];
if ( UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad )
{
    if (indexPath.row==0)
    {
        lblText.textColor =[self colorWithHexString:@"333333"];
        lblText.font=[UIFont fontWithName:@"VERDANA" size:30];
    }
    else
    {
        lblText.textColor=[self colorWithHexString:@"333333"];
        lblText.font=[UIFont fontWithName:@"VERDANA" size:20];
    }
}
else
{
    if (indexPath.row==0)
    {
        lblText.textColor=[self colorWithHexString:@"333333"];
        lblText.font=[UIFont fontWithName:@"VERDANA" size:18];
    }
    else
    {
        lblText.textColor=[self colorWithHexString:@"333333"];
        lblText.font=[UIFont fontWithName:@"VERDANA" size:16];
    }
}
lblText.text=[arrFacilities objectAtIndex:indexPath.row];
lblText.textAlignment=NSTextAlignmentLeft;
if (selectAll==1)
{
    [cell setAccessoryType:UITableViewCellAccessoryCheckmark];
    [btnCheck setImage:[UIImage imageNamed:@"checked_white.png"] forState:UIControlStateNormal];
}
else
{
    if([self.arrForIndPaths containsObject:indexPath])
    {
        [cell setAccessoryType:UITableViewCellAccessoryCheckmark];
        [btnCheck setImage:[UIImage imageNamed:@"checked_white.png"] forState:UIControlStateNormal];
    }
    else
    {
        [cell setAccessoryType:UITableViewCellAccessoryNone];
        [btnCheck setImage:[UIImage imageNamed:@"checkbox_white.png"]forState:UIControlStateNormal];
    }
}
cell.textLabel.numberOfLines=0;
cell.textLabel.lineBreakMode=NSLineBreakByWordWrapping;
return cell;
}
- (void)doneBtn:(UIButton*)sender
{
UIButton *btn = (UIButton*)sender;
}

先谢谢。

Answer 1

全局声明这些变量

BOOL isSelectedAll;
NSMutableArray *arraySelectedRows;
int allDataCount; // this may be your arrayWithData.count

在'viewDidLoad'

中

isSelectedAll = NO;
allDataCount = 10;
arraySelectedRows = [[NSMutableArray alloc]init];

在'cellForRowAtIndexPath'

中

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
//    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"ce" forIndexPath:indexPath];
CustomTableViewCell *cell = [[CustomTableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:@"cee"];
cell.textLabel.text = @"Test";
UIButton *buttonSelection = [[UIButton alloc]initWithFrame:CGRectMake(tableView.frame.size.width - 100, 8, 50, 50)];
buttonSelection.tag = indexPath.row;
if(isSelectedAll)
{
    [buttonSelection setImage:[UIImage imageNamed:@"tick"] forState:UIControlStateNormal];//Rename imageName as yours
}
else if([arraySelectedRows containsObject:indexPath]&&indexPath.row!=0)
{
    [buttonSelection setImage:[UIImage imageNamed:@"tick"] forState:UIControlStateNormal];//Rename imageName as yours
}
else
{
    [buttonSelection setImage:[UIImage imageNamed:@"untick"] forState:UIControlStateNormal];//Rename imageName as yours
}

[buttonSelection addTarget:self action:@selector(selectionButtonAction:) forControlEvents:UIControlEventTouchUpInside];
[cell addSubview:buttonSelection];
return cell;
}

'didSelectRowAtIndexPath'

中的

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:     (NSIndexPath *)indexPath
{
if (indexPath.row == 0)
{
    //select all button
    if (isSelectedAll)
    {
        isSelectedAll = NO;
        [arraySelectedRows removeAllObjects];
    }
    else
    {
        [arraySelectedRows removeAllObjects];
        for (int i = 1; i<allDataCount; i++)
        {
            [arraySelectedRows addObject:[NSIndexPath indexPathForRow:i inSection:0]];//section number may be defer for you
        }
        isSelectedAll = YES;
    }
}
else
{
    if([arraySelectedRows containsObject:indexPath])
    {
        [arraySelectedRows removeObject:indexPath];

    }
    else
    {
        [arraySelectedRows addObject:indexPath];
    }
    if ((allDataCount - 1) == arraySelectedRows.count)
    {
        isSelectedAll = YES;
    }
    else
    {
        isSelectedAll = NO;
    }
}
[self.tableView reloadData];
}

如果您需要在按钮操作中执行相同的操作

-(void)selectionButtonAction:(UIButton*)button
{
if (button.tag == 0)
{
    //select all button
    if (isSelectedAll)
    {
        isSelectedAll = NO;
        [arraySelectedRows removeAllObjects];
    }
    else
    {
        [arraySelectedRows removeAllObjects];
        for (int i = 1; i<allDataCount; i++)
        {
            [arraySelectedRows addObject:[NSIndexPath indexPathForRow:i inSection:0]];//section number may be defer for you
        }
        isSelectedAll = YES;
    }
}
else
{
    NSIndexPath *buttonIndexPath = [NSIndexPath indexPathForRow:button.tag inSection:0];//section number may be defer for you
    if([arraySelectedRows containsObject:buttonIndexPath])
    {
        [arraySelectedRows removeObject:buttonIndexPath];

    }
    else
    {
        [arraySelectedRows addObject:buttonIndexPath];
    }
    if ((allDataCount - 1) == arraySelectedRows.count)
    {
        isSelectedAll = YES;
    }
    else
    {
        isSelectedAll = NO;
    }
}
[self.tableView reloadData];
}

'arraySelectedRows'包含选定行的indexPath

Answer 2

请尝试此方法

-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    MessageViewCell *cell =(MessageViewCell *)[tableView dequeueReusableCellWithIdentifier:@"cell"];
    if(cell == nil)
    {
        NSArray *nib = [[NSBundle mainBundle] loadNibNamed:@"MessageViewCell" owner:self options:nil];
        cell = [nib objectAtIndex:0];
    }
    cell.selectionStyle = UITableViewCellSelectionStyleNone;

    cell.lblUsername.text  = [arrUsername objectAtIndex:indexPath.row];

    NSURL *URL =[NSURL URLWithString:[NSString stringWithFormat:@"%@%@",_URL_IMAGEURL,[arrImages objectAtIndex:indexPath.row]]];

    cell.imgView.tag = indexPath.row;

    UITapGestureRecognizer *tap1 = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(openProfile:)];

    tap1.numberOfTapsRequired = 1;

    cell.imgView.userInteractionEnabled = YES;

    [cell.imgView addGestureRecognizer:tap1];

    cell.imgView.image = [UIImage imageNamed:@"NoImage.png"];

    [[AsyncImageLoader sharedLoader] cancelLoadingImagesForTarget:cell.imgView];

    cell.imgView.imageURL = URL;

    cell.imgView.layer.cornerRadius = cell.imgView.frame.size.width/2;

    [cell.imgView setClipsToBounds:YES];

    cell.btnCheckBox.tag = indexPath.row;

    [cell.btnCheckBox setHidden:false];

    if([[[arrFriends objectAtIndex:indexPath.row] valueForKey:@"markedToDelete"] boolValue]){
        [cell.btnCheckBox setSelected:TRUE];
    }else{
        [cell.btnCheckBox setSelected:FALSE];
    }


    [cell.btnCheckBox addTarget:self **action:@selector(checkBoxClick:)** forControlEvents:UIControlEventTouchUpInside];

    cell.lblMsg.text = [arrLastMessage objectAtIndex:indexPath.row];

    return cell;
}
/////
-(void)checkBoxClick:(UIButton *)sender
{
    UIButton *btn = (UIButton *)sender;
    NSIndexPath *indexPath = [tblMessages indexPathForCell:(UITableViewCell *)btn.superview.superview];
    [sender setSelected:!sender.isSelected];
    if (sender.isSelected)
    {
        arrFriends[sender.tag][@"markedToDelete"] = @YES;
        if(![arrDeleteUsername containsObject:[arrOppUsername objectAtIndex:indexPath.row]])
        {
            [arrDeleteUsername addObject:[arrOppUsername objectAtIndex:indexPath.row]];
        }
    }
    else
    {
        [arrDeleteUsername removeObject:[arrOppUsername objectAtIndex:indexPath.row]];
        arrFriends[sender.tag][@"markedToDelete"] = @NO;
    }
}

Answer 3

您的按钮点击操作代码不会做任何事情。只需将以下代码添加到您的项目中即可：

- (void)doneBtn:(UIButton*)sender{
if ([sender tag]==0)
{
    if (selectAll==0)
    {
        selectAll=1;
        [self.arrForIndPaths removeAllObjects];
    }
    else
    {
        selectAll=0;
        [self.arrForIndPaths removeAllObjects];
    }
}
else
{
    if (selectAll!=1)
    {
        if([self.arrForIndPaths containsObject:[NSIndexPath indexPathForRow:[sender tag] inSection:0]])
        {
            [self.arrForIndPaths removeObject:[NSIndexPath indexPathForRow:[sender tag] inSection:0]];
        }
        else
        {
            [self.arrForIndPaths addObject:[NSIndexPath indexPathForRow:[sender tag] inSection:0]];
        }
    }
    else
    {
        selectAll=0;
        if([self.arrForIndPaths containsObject:[NSIndexPath indexPathForRow:[sender tag] inSection:0]])
        {
            [self.arrForIndPaths removeObject:[NSIndexPath indexPathForRow:[sender tag] inSection:0]];
        }
        else
        {
         [self.arrForIndPaths addObject:[NSIndexPath indexPathForRow:[sender tag] inSection:0]];
        }
       }
    }
[tableView reloadData];
}

或相应地进行更改。

UItableView用UIButton替换Checkmarks

3 个答案: