我有一个tableview，其中包含用户选择的选项列表（这是一个编辑页面）。
tableview如下所示
苹果UITableViewCellAccessoryCheckmark
橙色UITableViewCellAccessoryNone
菠萝UITableViewCellAccessoryCheckmark香蕉
UITableViewCellAccessoryNone
- (void)viewDidLoad {
self.mySavedFruitsArray = [myDBOperations getMyFruitsList:[appDelegate getDBPath]:self.myId];
}
/ Customize the appearance of table view cells.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:
(NSIndexPath *)indexPath
//-------------------------------------------------------------------------------
{
static NSString *CellIdentifier = @"PoemTypeCell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil)
{
cell = [[[UITableViewCell alloc] initWithFrame:CGRectZero reuseIdentifier:@"MyIdentifier"]autorelease];
}
NSDictionary *aDict = [self.myFruitsArr objectAtIndex:indexPath.row];
NSString *aValue = [aDict objectForKey:@"value"];
NSString *aId = [aDict objectForKey:@"key"];
cell.textLabel.text = aValue;
cell.accessoryType = UITableViewCellAccessoryNone;
NSDictionary *aSavedDict = [self.mySavedFruitsArray objectAtIndex:indexPath.row];
NSString *Value = [aSavedDict objectForKey:@"value"];
NSString *Id = [aSavedDict objectForKey:@"key"];
if ( aId == Id ){
cell.accessoryType = UITableViewCellAccessoryCheckmark;
}else
{
cell.accessoryType = UITableViewCellAccessoryNone;
}
return cell;
}
mySavedFruitsArray-保存用户选择的水果。myFruitsArr-这是常见的水果清单现在我想知道如何显示与
UITableViewCellAccessoryCheckmark匹配的单元格的mySavedFruitsArray。我的意思是，在此编辑视图中，我想显示带有用户选择选项的水果列表。
请让我知道该怎么做。
我这样尝试过，但没有用。
/ Customize the appearance of table view cells.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:
(NSIndexPath *)indexPath
//-------------------------------------------------------------------------------
{
static NSString *CellIdentifier = @"PoemTypeCell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil)
{
cell = [[[UITableViewCell alloc] initWithFrame:CGRectZero reuseIdentifier:@"MyIdentifier"]autorelease];
}
NSDictionary *aDict = [self.myFruitsArr objectAtIndex:indexPath.row];
NSString *aValue = [aDict objectForKey:@"value"];
NSString *aId = [aDict objectForKey:@"key"];
cell.textLabel.text = aValue;
cell.accessoryType = UITableViewCellAccessoryNone;
NSDictionary *aSavedDict = [self.mySavedFruitsArray objectAtIndex:indexPath.row];
NSString *Value = [aSavedDict objectForKey:@"value"];
NSString *Id = [aSavedDict objectForKey:@"key"];
if ( aId == Id ){
cell.accessoryType = UITableViewCellAccessoryCheckmark;
}else
{
cell.accessoryType = UITableViewCellAccessoryNone;
}
return cell;
}
请注意self.mySavedFruitsArray可能并不总是等于myFruitsArr（因为用户只能选择一种水果）。
最佳答案
if ( aId == Id ){
cell.accessoryType = UITableViewCellAccessoryCheckmark;
}else
{
cell.accessoryType = UITableViewCellAccessoryNone;
}
字符串比较是错误的。您应该这样比较字符串：
if([aId isEqualToString:Id]) {
....
}