我想检测UITableViewCell上的按钮点击,其中父UITableView由多个部分组成 .
在单节的情况下,我能够做到这一点,但是在确定有多个部分的正确部分时遇到了麻烦 .
我试图确定用户点击按钮的UITableViewCell对应的正确部分 .
以下是问题解决后的更新代码:
@property (strong, nonatomic) NSMutableArray* quantityArray;
@property (strong, nonatomic) NSMutableArray* rows;
@synthesize quantityArray,rows;
- (void)viewDidLoad {
[super viewDidLoad];
quantityArray = [[NSMutableArray alloc] init];
[self PluMinusFunction];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
//
// Some code here.
//
if (addBtnClicked || minusBtnClicked) {
cell.lblCount.text = [[quantityArray objectAtIndex:indexPath.section-1]objectAtIndex:indexPath.row];
addBtnClicked = NO;
minusBtnClicked = NO;
} else {
cell.lblCount.text = [[quantityArray objectAtIndex:indexPath.section-1]objectAtIndex:indexPath.row];
}
cell.btnMinus.tag = indexPath.row;
cell.btnPlus.tag = indexPath.row;
cell.lblCount.tag = indexPath.row;
[cell.btnPlus addTarget:self action:@selector(addItem:) forControlEvents:UIControlEventTouchUpInside];
if ([ cell.lblCount.text integerValue]!=0) {
[cell.btnMinus addTarget:self action:@selector(deleteItem:) forControlEvents:UIControlEventTouchUpInside];
}
return cell;
}
}
#pragma mark - Plus Minus Button
- (void)PluMinusFunction {
for (int j=0; j <[itemArr count]; j++) {
rows = [[NSMutableArray alloc] init];
for (int i=0; i <[ [[itemArr objectAtIndex:j] objectForKey:@"itemList"]count]; i++) {
[rows insertObject:@"0" atIndex:i];
}
[quantityArray insertObject:rows atIndex:j];
}
[self sum];
}
#pragma mark - UIButton selector
- (void)addItem:(UIButton*)button {
CGPoint touchPoint = [button convertPoint:CGPointZero toView:self.tableView];
NSIndexPath *clickedButtonIndexPath = [self.tableView indexPathForRowAtPoint:touchPoint];
NSInteger row = clickedButtonIndexPath.row;
NSInteger section = clickedButtonIndexPath.section;
NSInteger LabelText =[[[quantityArray objectAtIndex:section-1]objectAtIndex:row]integerValue] + 1;
NSMutableArray *subArray = [quantityArray objectAtIndex:section-1];
[subArray replaceObjectAtIndex:row withObject: [NSString stringWithFormat:@"%ld",(long)LabelText]];
[quantityArray replaceObjectAtIndex:section-1 withObject: subArray];
addBtnClicked = YES;
NSIndexPath* rowToReload = [NSIndexPath indexPathForRow:row inSection:section];
NSArray* rowsToReload = [NSArray arrayWithObjects:rowToReload, nil];
[self.tableView reloadRowsAtIndexPaths:rowsToReload withRowAnimation:UITableViewRowAnimationNone];
}
- (void)deleteItem:(UIButton*)button {
CGPoint touchPoint = [button convertPoint:CGPointZero toView:self.tableView];
NSIndexPath *clickedButtonIndexPath = [self.tableView indexPathForRowAtPoint:touchPoint];
NSInteger row = clickedButtonIndexPath.row;
NSInteger section = clickedButtonIndexPath.section;
NSInteger LabelValue =[[[quantityArray objectAtIndex:section-1]objectAtIndex:row]integerValue];
if (LabelValue >= 1) {
NSInteger LabelText =[[[quantityArray objectAtIndex:section-1]objectAtIndex:row]integerValue] - 1;
NSMutableArray *subArray = [quantityArray objectAtIndex:section-1];
[subArray replaceObjectAtIndex:row withObject: [NSString stringWithFormat:@"%ld",(long)LabelText]];
[quantityArray replaceObjectAtIndex:section-1 withObject: subArray];
addBtnClicked = YES;
NSIndexPath* rowToReload = [NSIndexPath indexPathForRow:row inSection:section];
NSArray* rowsToReload = [NSArray arrayWithObjects:rowToReload, nil];
[self.tableView reloadRowsAtIndexPaths:rowsToReload withRowAnimation:UITableViewRowAnimationNone];
}
}
我想实现如下所示的布局:
这个链接也解决了我的问题:
3 回答
Objective-C
Swift3
Swift2 and above
在不使用
CGPoint
并对UI进行假设的情况下获取索引路径的更直接方法是查看.superview
. 我想这在实践中更可靠 .然后您可以在按钮操作中执行此操作: