[英]How to show buttons in uitableview cell and their action will be shown on label on the same cell
在UITableViewCell中有不同的按钮,当我点击任何按钮时,它的动作正在所有单元格上执行,但我希望当我按下按钮时,动作将显示在同一单元格的标签上,我知道我需要将它们放入阵列但是如何...?
当我点击按钮时,一个值正在递增,它应该显示在同一个单元格的标签上这里是代码: -
-(UITableViewCell *) tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
static NSString *CellIdentifier = @"Cell";
UITableViewCell *cell=[tableView dequeueReusableCellWithIdentifier:CellIdentifier];
cell=[[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
likeShow=[[UILabel alloc]initWithFrame:CGRectMake(0, 160, 80, 20)];
likeBtn=[UIButton buttonWithType:UIButtonTypeCustom];
[likeBtn addTarget:self action:@selector(likeFn) forControlEvents:UIControlEventTouchUpInside];
likeBtn.frame=CGRectMake(0, 110, 90, 50);
[likeBtn setTitle:@"Like" forState:UIControlStateNormal];
[likeBtn setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
[cell addSubview:likeBtn];
[cell addSubview:likeShow];
return cell;
}
这是按钮的动作
-(void)likeFn{
NSString *str;
NSMutableString *mystring=[NSMutableString string];
likeCount++;
str =[NSString stringWithFormat:@"%d",likeCount];
NSString *world = @"Like";
NSString *helloWorld = [world stringByAppendingString:str];
likeShow.text=helloWorld;
}
请尝试以下代码
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
NSString *CellIdentifier = [NSString stringWithFormat:@"Cell-%d",indexPath.row];
UITableViewCell *cell=[tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil)
{
cell=[[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
//[cell clearsContextBeforeDrawing];
}
cell.selectionStyle = UITableViewCellSelectionStyleNone;
int lbltag = 1000;
UIButton *likeBtn = nil;
UILabel *likeShow = nil;
if ([cell viewWithTag:lbltag])
{
likeShow = (UILabel*)[cell viewWithTag:lbltag];
}
else
{
likeShow=[[[UILabel alloc]initWithFrame:CGRectMake(0, 0, 80, 20)] autorelease];
likeShow.text = [NSString stringWithFormat:@"%d likes",[[_marrTest objectAtIndex:indexPath.row] intValue]];
likeShow.tag = lbltag;
[cell addSubview:likeShow];
}
if ([cell viewWithTag:indexPath.row+1])
{
likeBtn = (UIButton*)[cell viewWithTag:indexPath.row+1];
}
else
{
likeBtn=[UIButton buttonWithType:UIButtonTypeCustom];
likeBtn.tag = indexPath.row+1;
[likeBtn addTarget:self action:@selector(likeFn:) forControlEvents:UIControlEventTouchUpInside];
likeBtn.frame=CGRectMake(90, 0, 90, 50);
[likeBtn setTitle:@"Like" forState:UIControlStateNormal];
[likeBtn setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
[cell addSubview:likeBtn];
}
return cell;
}
-(void)likeFn:(UIButton*)btnClicked
{
NSString *strLikes = [_marrTest objectAtIndex:btnClicked.tag-1];
int likeCount = [strLikes intValue] + 1;
[_marrTest replaceObjectAtIndex:btnClicked.tag-1 withObject:[NSString stringWithFormat:@"%d",likeCount]];
NSIndexPath *selectedIndexPath = [NSIndexPath indexPathForRow:btnClicked.tag-1 inSection:0];
UITableViewCell *cell = [self.tableView cellForRowAtIndexPath:selectedIndexPath];
UILabel *requiredLabel = (UILabel*)[cell viewWithTag:1000];
NSString *str = requiredLabel.text;
//str = [str stringByAppendingFormat:@"selected %@", str];
requiredLabel.text = @"";
requiredLabel.text = [NSString stringWithFormat:@"%d likes",[[_marrTest objectAtIndex:btnClicked.tag-1] intValue]];
//do what ever you want with the label
}
在单独的nib文件中创建单元格。 为该单元格添加按钮和标签。 还要为该单元格创建一个视图类,并将nib文件中的单元格的类设置为您创建的类。 将出口形式的笔尖形成为类文件。 还为按钮和实现操作创建操作。 并在表视图中使用该单元格。
-(UITableViewCell *) tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
static NSString *CellIdentifier = @"Cell";
UITableViewCell *cell=[tableView dequeueReusableCellWithIdentifier:CellIdentifier];
cell=[[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
likeShow=[[UILabel alloc]initWithFrame:CGRectMake(0, 160, 80, 20)];
likeBtn=[UIButton buttonWithType:UIButtonTypeCustom];
[likeBtn addTarget:self action:@selector(likeFn::) forControlEvents:UIControlEventTouchUpInside];
likeBtn.frame=CGRectMake(0, 110, 90, 50);
[likeBtn setTitle:@"Like" forState:UIControlStateNormal];
[likeBtn setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
[cell.contentView addSubview:likeBtn];
[cell.contentView addSubview:likeShow];
return cell;
}
-(void)likeFn:(UIButton *)sender :(UIEvent *)event{
NSSet *touches = [event allTouches];
UITouch *touch = [touches anyObject];
CGPoint currentTouchPosition = [touch locationInView:self.view];
NSIndexPath *indexPath = [self.tableView indexPathForRowAtPoint:currentTouchPosition];
UITableViewCell *cell = [self.tableView cellForRowAtIndexPath:indexPath];
NSString *str;
NSMutableString *mystring=[NSMutableString string];
likeCount++;
str =[NSString stringWithFormat:@"%d",likeCount];
NSString *world = @"Like";
NSString *helloWorld = [world stringByAppendingString:str];
for(id subView in cell.contentView.subviews){
{
if([subView isKindOfClass:[UILabel class]]){
UILabel *tmpLabel = (UILabel *)subView;
tmpLabel.text=helloWorld;
}
}
}
试试这个代码它可能对你有帮助
尝试将标签设置为:
likeBtn.tag = indexPath.row;
likeShow.tag = indexPath.row;
并在likeFn
:
- (void)likeFn: (id)sender {
UIButton * btn = (UIButton*)sender;
//check if the btn tag and label tag are same.
}
请检查此代码。这可能对您有所帮助。
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
NSString *CellIdentifier = @"Cell";
UITableViewCell *cell=[tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil)
{
cell=[[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
[cell clearsContextBeforeDrawing];
}
cell.selectionStyle = UITableViewCellSelectionStyleNone;
likeShow=[[UILabel alloc]initWithFrame:CGRectMake(0, 160, 80, 20)];
likeBtn=[UIButton buttonWithType:UIButtonTypeCustom];
[likeBtn addTarget:self action:@selector(likeFn) forControlEvents:UIControlEventTouchUpInside];
likeBtn.frame=CGRectMake(0, 110, 90, 50);
[likeBtn setTitle:@"Like" forState:UIControlStateNormal];
[likeBtn setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
[cell addSubview:likeBtn];
[cell addSubview:likeShow];
return cell;
}
USE didSelectRowAtIndexPath方法
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
UITableViewCell *cell=[tableView dequeueReusableCellWithIdentifier:CellIdentifier];
return;
}
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