Question

我正在创建一个iPhone应用程序。在那里我在表格单元格中显示一些内容。现在，我想在单击表格单元格时显示全尺寸图像。我使用了以下代码。但是当我选择表格单元格时，我不知道如何以全屏显示图像。而且当我在全屏显示图像时点击背景时我也想回来。

-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
CustomTableViewCell *cell = [self.tableView dequeueReusableCellWithIdentifier:@"CustomCell"];
const char *dbpath = [_databasePath UTF8String];
sqlite3_stmt    *statement;

if (sqlite3_open(dbpath, &_beaconDB) == SQLITE_OK)
{

    NSString *querySQL = [NSString stringWithFormat:
                          @"SELECT vendor_name, enter_message, enter_image, received_date, time_interval FROM beacons WHERE id=%@",  [unique objectAtIndex:indexPath.row]];
    const char *query_stmt = [querySQL UTF8String];
    if (sqlite3_prepare_v2(_beaconDB,
                       query_stmt, -1, &statement, NULL) == SQLITE_OK)
    {
        if (sqlite3_step(statement) == SQLITE_ROW)
        {
            title = [[NSString alloc]
                              initWithUTF8String:
                              (const char *) sqlite3_column_text(
                                                                 statement, 0)];
            description = [[NSString alloc]
                            initWithUTF8String:(const char *)
                            sqlite3_column_text(statement, 1)];

            fullImg = [[NSString alloc]
                           initWithUTF8String:(const char *)
                           sqlite3_column_text(statement, 2)];

            NSString *receivedDate = [[NSString alloc]
                                     initWithUTF8String:(const char *)
                                     sqlite3_column_text(statement, 3)];

            NSString *timeInterval = [[NSString alloc] initWithUTF8String:(const char *) sqlite3_column_text(statement, 4)];

            BeaconAdTime *beaconAdTime = [[BeaconAdTime alloc] init];
            NSDate *updatedTime = [beaconAdTime updatedDateTime:receivedDate andInterval:[timeInterval intValue]];

            while (updatedTime!=nil)
            {
                NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
                [dateFormatter setDateFormat: @"MMM-dd hh:mm a"];
                BeaconAdTime *beaconAdTime = [[BeaconAdTime alloc] init];
                NSString *presentDateTime = [beaconAdTime presentDateTime];
                NSDate *presentDateConvert = [dateFormatter dateFromString:presentDateTime];

                if(updatedTime <= presentDateConvert)
                {
//                        [message insertObject:description atIndex:indexPath.row];
//                        [vendor insertObject:title atIndex:indexPath.row];
                    cell.title.text = title;
                    cell.description.text = description;
                    cell.receivedDate.text = receivedDate;
                    break;
                }
            }
        }
    sqlite3_finalize(statement);
    }
    sqlite3_close(_beaconDB);
}
cell.title.text = vendor[indexPath.row];

cell.vendorImage.image = [UIImage imageNamed:@"gg.jpg"];

//    cell.imageView.image = [UIImage imageWithData:[NSData dataWithContentsOfURL:[NSURL URLWithString:thumbnailImg]]];
return cell;
}

Answer 1

类似的东西：

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
    UITableViewCell *cell = tableView.visibleCells[indexPath.row];
    UIViewController *imageVC = [UIViewController new];
    CGRect screenRect = [[UIScreen mainScreen] bounds];
    CGFloat screenWidth = screenRect.size.width;
    CGFloat screenHeight = screenRect.size.height;
    imageVC.view.frame = CGRectMake(0, 0, screenWidth, screenHeight);
    UIImageView *imageView = [[UIImageView alloc] initWithFrame:imageVC.view.frame];
    imageView.image = cell.imageView.image;
    imageView.userInteractionEnabled=YES;
    UITapGestureRecognizer *tapGR = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(imageTouched:)];
    [imageView addGestureRecognizer:tapGR];
    [self presentViewController:imageVC animated:YES completion:nil];

}

如果您需要解释和/或进一步的帮助，请告诉我

Answer 2

我认为您正在寻找的是深入研究表界面。

以下是Ray Wenderlich的一个例子：http://www.raywenderlich.com/913/sqlite-tutorial-for-ios-making-our-app。另外，这是Apple的官方参考：https://developer.apple.com/library/ios/documentation/userexperience/conceptual/tableview_iphone/TableViewAndDataModel/TableViewAndDataModel.html。

祝你好运！

在表格单元格上显示图像

2 个答案: