[英]Detail View Controller from Table View Controller WITHOUT Storyboard?
我在控制器中有一个tableview
,它显示收据及其图像,创建日期等。
我这样做的目的是,当用户点击一个单元格时,它将转到DetailViewController
。 使用此代码:
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
ReceiptDetailViewController *controller = [[ReceiptDetailViewController alloc] initWithNibName:@"ReceiptDetailViewController" bundle:nil];
[self.navigationController pushViewController:controller animated:YES];
}
我想将图像,日期,类别等传递给UIImageView
, textView
等中的新视图。
这是第一个控制器中我的Table的代码:
-(UITableViewCell*)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"Cell"];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:@"Cell"];
}
cell.selectionStyle = UITableViewCellSelectionStyleGray;
cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
Receipt *receipt = [self.receiptsArray objectAtIndex:indexPath.row];
ReceiptCategory *category = receipt.relationshipToCategory;
ReceiptImage *image = receipt.relationshipToImage;
cell.textLabel.text = category.receiptCategory;
cell.detailTextLabel.text = receipt.date.description;
if(self.imageCache.count <= indexPath.row) {
[self.imageCache addObject:[UIImage imageWithData:image.data]];
}
UIImageView *imageView = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 40, 40)];
imageView.image = [self.imageCache objectAtIndex:indexPath.row];
cell.imageView.image = imageView.image;
return cell;
}
如何传递这些数据? 我搜索了大约两天,所有解决方案都包括一个故事板,但我没有使用。
您应该只使用Table View Delegate方法
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
您可以在那里检索选定的收据并将数据传递到详细信息视图,如下所示:
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
ReceiptDetailViewController *controller = [[ReceiptDetailViewController alloc] initWithNibName:@"ReceiptDetailViewController" bundle:nil];
Receipt *selectedReceipt = [self.receiptsArray objectAtIndex:indexPath.row];
controller.receipt = selectedReceipt;
[self.navigationController pushViewController:controller animated:YES];
}
您可以为详细视图控制器创建自定义类,并在用户单击任何单元格时创建相同的对象。 像这样
DetailViewControllerClass *newObject = [[DetailViewControllerClass alloc] init];
newObject.data1 = dataToBeSent ; //assign data
您应该在didSelectRowAtIndexPath:中获得对收据的引用,并将其传递给ReceiptDetailViewController。 我假设您具有接受ReceiptDetailViewController中的数据的属性:
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
//Get reference to receipt
Receipt *receipt = [self.receiptsArray objectAtIndex:indexPath.row];
ReceiptDetailViewController *controller = [[ReceiptDetailViewController alloc] initWithNibName:@"ReceiptDetailViewController" bundle:nil];
// Pass data to controller
controller.receipt = receipt;
[self.navigationController pushViewController:controller animated:YES];
}
在此示例中,您应该在ReceiptDetailViewController.h文件中创建属性:
@property(nonatomic, strong) Receipt *receipt;
现在,您可以在ReceiptDetailViewController对象中使用它。
You should make an object of Receipt in ReceiptDetailViewController and make the property nonatomic and strong Than in tour view controller Write this
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
Receipt *receipt = [self.receiptsArray objectAtIndex:indexPath.row];
ReceiptDetailViewController *controller = [[ReceiptDetailViewController alloc] initWithNibName:@"ReceiptDetailViewController" bundle:nil];
controller.objReceipt= receipt;
[self.navigationController pushViewController:controller animated:YES];
}
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.