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사용자가 테이블을 아래로 위로 스크롤 할 때 UITableViewCell 설치 문제가 발생합니다. 그룹화 된 표가 다른 셀로 스크롤되고 다시 해당 셀로 돌아 오면 셀은 변경 내용을 잃어 버립니다 (빨간색/녹색 배경 이미지는 -didSelectRowAtIndexPath으로 설정 됨). 나는 질문 아래의 코드를 사용하여 두 개의 섹션 4 응답 선택을 표시하고 있습니다UITableViewCell 테이블이 위로 스크롤되어 해당 셀에 돌아올 때 배경 이미지 문제가 발생했습니다.
는 .. 사용자가 선택 중 하나를 선택
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
NSString *kCustomCellID = [NSString stringWithFormat:@"CustomCellID%d", ((100 * indexPath.section) + indexPath.row)];
UITableViewCell *cell = nil;//[tableView dequeueReusableCellWithIdentifier:kCustomCellID];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:kCustomCellID] autorelease];
cell.selectionStyle = UITableViewCellSelectionStyleNone;
}
if (indexPath.section == 0) {
cell.textLabel.text = questionText;
cell.textLabel.textAlignment = UITextAlignmentCenter;
cell.textLabel.font = FONT_QUESTIONTEXT;
cell.textLabel.numberOfLines = 0;
}
else {
cell.textLabel.text = [self.answerChoices objectAtIndex:indexPath.row];
cell.textLabel.font = FONT_ANSWERTEXT;
cell.textLabel.numberOfLines = 0;
ConfigurationBase *configBase = [[ConfigurationBase alloc] initWithConfigurationType:kConfigTypeQuiz];
NSString *backgroundImageName = [configBase.configInfo valueForKey:CKEY_IMG_ANSWER_BACKGROUND];
NSString *leftImage = [configBase.configInfo valueForKey:[choicesLeftImages objectAtIndex:indexPath.row]];
[configBase release];
cell.backgroundColor = [UIColor clearColor];
UIImageView *bgView = [[UIImageView alloc] initWithFrame:cell.frame];
bgView.image = [UIImage imageNamed:backgroundImageName];
cell.backgroundView = bgView;
[bgView release];
cell.imageView.image = [UIImage imageNamed:leftImage];
}
return cell;
}
그리고는 나는 배경 색상의 옳고 그름 선택을 변경 녹색 및 빨강 색상. 2 행의 배경을 변경하는 코드는 다음과 같습니다.
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
if (indexPath.section == 1) { // Answer choice section.
NSString *correctAnswerStr = [quizSession fetchCorrectAnswer];
NSInteger correctAnswerIndex = -1;
ConfigurationBase *configBase = [[ConfigurationBase alloc] initWithConfigurationType:kConfigTypeQuiz];
NSString *correctAnsImageName = [configBase.configInfo valueForKey:CKEY_IMG_ANSWER_CORRECT_BACKGROUND];
NSString *wrongAnsImageName = [configBase.configInfo valueForKey:CKEY_IMG_ANSWER_WRONG_BACKGROUND];
[configBase release];
UITableViewCell *answerCell = [tableView cellForRowAtIndexPath:indexPath];
answerCell.backgroundColor = [UIColor clearColor];
UIImageView *bgView = [[UIImageView alloc] initWithFrame:answerCell.frame];
bgView.image = [UIImage imageNamed:wrongAnsImageName];
answerCell.backgroundView = bgView;
[bgView release];
for (NSString *answerChoice in answerChoices) {
++correctAnswerIndex;
if ([answerChoice isEqualToString:correctAnswerStr]) {
// Correct Index obtained, so set the background color for it.
NSIndexPath *correctIndexPath = [NSIndexPath indexPathForRow:correctAnswerIndex
inSection:indexPath.section];
UITableViewCell *correctAnswerCell = [tableView cellForRowAtIndexPath:correctIndexPath];
correctAnswerCell.backgroundColor = [UIColor clearColor];
UIImageView *bgView = [[UIImageView alloc] initWithFrame:correctAnswerCell.frame];
bgView.image = [UIImage imageNamed:correctAnsImageName];
correctAnswerCell.backgroundView = bgView;
[bgView release];
break;
}
}
// Enable the 'next' button, allowing user to go for next question.
self.navigationItem.rightBarButtonItem.enabled = YES;
// Disable selection of answer until user go to next question.
tableView.allowsSelection = NO;
}
아무도 도와 줄 수 있습니까? TIA.
감사합니다.