【发布时间】：2015-06-14 09:01:58
【问题描述】：
我已经构建了一个示例可扩展的 tableview 项目。一切正常。现在，当我第二次点击同一个单元格时，我想最小化展开的单元格。谁能给我任何想法我该怎么做？非常感谢任何帮助。
这是我的代码
#import "ViewController.h"
@interface ViewController ()
@end
@implementation ViewController
{
NSMutableArray *arrSelected;
NSIndexPath *selectedRowIndex;
BOOL *isTwoTaps;
}
- (void)viewDidLoad {
[super viewDidLoad];
self.arrFields = @[@"Personal Info", @"Education", @"Hobbies", @"Interest"];
self.arrPersonalInfo = @[@"First Name", @"Last Name", @"Age", @"Phone Number",@"Address"];
self.arrEducation = @[@"10", @"10+2", @"Graduation", @"Masters", @"Higher Studies"];
self.arrHobbies = @[@"Sports", @"Cooking", @"Music", @"Gardening", @"Fishing"];
self.arrInterest = @[@"Collection", @"Space", @"Medical", @"Engineering", @"Programming"];
[self.tableView setAllowsMultipleSelection:YES];
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return [self.arrFields count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *cellIdentifier=@"CellA";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellIdentifier];
UIView *vw=(UIView *)[cell.contentView viewWithTag:999];
UILabel *lblField = (UILabel *)[cell.contentView viewWithTag:1];
lblField.text = [self.arrFields objectAtIndex:indexPath.row];
UILabel *lblDetail1 = (UILabel *)[cell.contentView viewWithTag:2];
UILabel *lblDetail2 = (UILabel *)[cell.contentView viewWithTag:3];
UILabel *lblDetail3 = (UILabel *)[cell.contentView viewWithTag:4];
UILabel *lblDetail4 = (UILabel *)[cell.contentView viewWithTag:5];
UILabel *lblDetail5 = (UILabel *)[cell.contentView viewWithTag:6];
if([[self.arrFields objectAtIndex:indexPath.row]isEqualToString:@"Personal Info"]) {
lblDetail1.text = [self.arrPersonalInfo objectAtIndex:indexPath.row];
lblDetail2.text = [self.arrPersonalInfo objectAtIndex:indexPath.row+1];
lblDetail3.text = [self.arrPersonalInfo objectAtIndex:indexPath.row+2];
lblDetail4.text = [self.arrPersonalInfo objectAtIndex:indexPath.row+3];
lblDetail5.text = [self.arrPersonalInfo objectAtIndex:indexPath.row+4];
NSLog(@"%@", [self.arrFields objectAtIndex:indexPath.row]);
}
else if ([[self.arrFields objectAtIndex:indexPath.row]isEqualToString:@"Education"]){
lblDetail1.text = [self.arrEducation objectAtIndex:indexPath.row-1];
lblDetail2.text = [self.arrEducation objectAtIndex:indexPath.row];
lblDetail3.text = [self.arrEducation objectAtIndex:indexPath.row+1];
lblDetail4.text = [self.arrEducation objectAtIndex:indexPath.row+2];
lblDetail5.text = [self.arrEducation objectAtIndex:indexPath.row+3];
}
else if ([[self.arrFields objectAtIndex:indexPath.row]isEqualToString:@"Hobbies"]){
lblDetail1.text = [self.arrHobbies objectAtIndex:indexPath.row-2];
lblDetail2.text = [self.arrHobbies objectAtIndex:indexPath.row-1];
lblDetail3.text = [self.arrHobbies objectAtIndex:indexPath.row];
lblDetail4.text = [self.arrHobbies objectAtIndex:indexPath.row+1];
lblDetail5.text = [self.arrHobbies objectAtIndex:indexPath.row+2];
}
else if([[self.arrFields objectAtIndex:indexPath.row]isEqualToString:@"Interest"]){
lblDetail1.text = [self.arrInterest objectAtIndex:indexPath.row-3];
lblDetail2.text = [self.arrInterest objectAtIndex:indexPath.row-2];
lblDetail3.text = [self.arrInterest objectAtIndex:indexPath.row-1];
lblDetail4.text = [self.arrInterest objectAtIndex:indexPath.row];
lblDetail5.text = [self.arrInterest objectAtIndex:indexPath.row+1];
}
if(selectedRowIndex && indexPath.row == selectedRowIndex.row) {
vw.hidden=FALSE;
}
else
{
vw.hidden=TRUE;
}
return cell;
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
if(selectedRowIndex)
{
[tableView reloadData];
}
selectedRowIndex = indexPath ;
[tableView beginUpdates];
[self.tableView reloadRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationFade];
[tableView endUpdates];
}
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {
if(selectedRowIndex && indexPath.row == selectedRowIndex.row) {
return 222;
}
else{
return 44;
}
}
【问题讨论】：
-
你需要使用uitapgesturerecognizer，需要将点击次数设置为2。看看stackoverflow.com/questions/8876202/…
-
如果没有 uitapgesturerecognizer 并且只能使用方法 didSelectRowAtIndexPath，我不能这样做吗？ @AkashShinde
-
你可以使用didSelectRowAtIndexPath，当你点击单元格时这个代理方法会被调用，所以在这个方法下放上uitapgesturerecognizer代码，它会识别双击它会展开。
标签： ios objective-c uitableview