我想知道在使用目标C按下按钮时如何编辑文本框。
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
@try {
static NSString *CellIdentifier = @"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:nil] autorelease];
}
cell.selectionStyle=UITableViewCellSelectionStyleNone;
Property *objProperty=nil;
ComponentLog *objCompLog=nil;
if(tableView==tblProperties)
objProperty=[arrProperties objectAtIndex:indexPath.row];
else
objCompLog=[arrCompLogs objectAtIndex:indexPath.row];
UILabel *lblTag=[[UILabel alloc]init];
lblTag.frame=CGRectMake(setX, 20.0, 150.0, 60.0);
[lblTag setTextColor:[UIColor colorWithRed:0.0 green:73.0/255.0 blue:121.0/255.0 alpha:1.0]];
lblTag.numberOfLines=2;
if(tableView==tblProperties)
[lblTag setText:[objProperty propertyTypeName]];
else
{
NSString *d=[objCompLog dateAndTime];
NSLog(@"%@",d);
NSArray *arrSeparate = [d componentsSeparatedByString:@"T"];
NSString *str1 = [arrSeparate objectAtIndex:0];
if(str1 != nil && ![str1 isEqualToString:(NSString *)@""])
{
NSArray *arrDate=[str1 componentsSeparatedByString:@"-"];
NSString *strYear=[arrDate objectAtIndex:0];
NSString *strMonth=[arrDate objectAtIndex:1];
NSString *strDay=[arrDate objectAtIndex:2];
str1=[strMonth stringByAppendingString:@"/"];
str1=[str1 stringByAppendingString:strDay];
str1=[str1 stringByAppendingString:@"/"];
str1=[str1 stringByAppendingString:strYear];
}
[lblTag setText:str1];
}
[lblTag setFont:[UIFont boldSystemFontOfSize:20.0]];
[lblTag setBackgroundColor:[UIColor clearColor]];
[cell.contentView addSubview:lblTag];
[lblTag release];
if(tableView==tblProperties)
{
UILabel *lblPropertyDesc=[[UILabel alloc]init];
lblPropertyDesc.frame=CGRectMake(setAnotherX, 20.0, setPropertyDescWidth, 60.0);
lblPropertyDesc.numberOfLines=2;
[lblPropertyDesc setTextColor:[UIColor colorWithRed:0.0 green:73.0/255.0 blue:121.0/255.0 alpha:1.0]];
[lblPropertyDesc setText:[objProperty propertyTypeDescription]];
[lblPropertyDesc setFont:[UIFont boldSystemFontOfSize:20.0]];
[lblPropertyDesc setBackgroundColor:[UIColor clearColor]];
[cell.contentView addSubview:lblPropertyDesc];
[lblPropertyDesc release];
}
else
{
lblDescriptionTag=[[UILabel alloc]init];
lblDescriptionTag.frame=CGRectMake(setAnotherX, 20.0, setLogDescWidth, 60.0);
lblDescriptionTag.numberOfLines=2;
[lblDescriptionTag setTextColor:[UIColor colorWithRed:0.0 green:73.0/255.0 blue:121.0/255.0 alpha:1.0]];
UILabel *lblDescription=[[UILabel alloc]init];
lblDescription.frame=CGRectMake(setAnotherX, 20.0, setLogDescWidth, 60.0);
lblDescription.numberOfLines=2;
[lblDescription setTextColor:[UIColor colorWithRed:0.0 green:73.0/255.0 blue:121.0/255.0 alpha:1.0]];
NSString* descHtml = [self flattenHTML:(NSString *)[objCompLog logDescription]];
[lblDescription setText:descHtml];
[lblDescription setFont:[UIFont boldSystemFontOfSize:20.0]];
[lblDescription setBackgroundColor:[UIColor clearColor]];
[cell.contentView addSubview:lblDescription];
[lblDescription release];
}
btnEditValue = [UIButton buttonWithType:UIButtonTypeCustom];
[btnEditValue setFrame:CGRectMake(self.view.frame.size.width-150,25,50, 50.0)];
btnEditValue.tag = indexPath.row;
[btnEditValue setImage:[UIImage imageNamed:@"EditValue.png"] forState:UIControlStateNormal];
[btnEditValue addTarget:self action:@selector(buttonEdit:
) forControlEvents:UIControlEventTouchUpInside];
[cell.contentView addSubview:btnEditValue];
btnSave = [UIButton buttonWithType:UIButtonTypeCustom];
[btnSave setFrame:CGRectMake(self.view.frame.size.width-60,25,50, 50.0)];
[btnSave setImage:[UIImage imageNamed:@"done.png"] forState:UIControlStateNormal];
[btnSave addTarget:self action:@selector(buttonSave) forControlEvents:UIControlEventTouchUpInside];
btnSave.userInteractionEnabled=NO;
[cell.contentView addSubview:btnSave];
txtValue=[[[UITextView alloc]init]autorelease];
txtValue.frame=CGRectMake(setValueX,20.0, 100, 60.0);
[txtValue setTextColor:[UIColor colorWithRed:0.0 green:73.0/255.0 blue:121.0/255.0 alpha:1.0]];
UIColor *borderColor = [UIColor colorWithRed:0.0 green:73.0/255.0 blue:121.0/255.0 alpha:1.0];
txtValue.layer.borderColor = borderColor.CGColor;
txtValue.layer.borderWidth = 1.0;
txtValue.layer.cornerRadius = 5.0;
if(tableView==tblProperties)
[txtValue setText:[objProperty propValue]];
[txtValue setFont:[UIFont boldSystemFontOfSize:20.0]];
[txtValue setBackgroundColor:[UIColor clearColor]];
txtValue.userInteractionEnabled = NO;
[cell.contentView addSubview:txtValue];
return cell;
}
@catch (NSException *ex) {
[Utils LogExceptionOnServer:@"ComponentDetailViewController" methodName:@"cellForRowAtIndexPath" exception:[ex description]];
}
}
-(void)buttonEdit:(UIButton *)sender
{
NSIndexPath *indexPath = [NSIndexPath indexPathForRow:sender.tag inSection:0];
UITableViewCell *cell = [tblProperties cellForRowAtIndexPath:indexPath];
[cell.contentView bringSubviewToFront:txtValue];
txtValue.userInteractionEnabled = YES;
btnSave.userInteractionEnabled=YES;
[txtValue becomeFirstResponder];
}
答案 0 :(得分：0)
从代码行中删除自动释放
txtValue=[[[UITextView alloc]init]autorelease];