Question

我终于得到了我的方法，当键盘显示时，我的表格视图向上移动。
我的所有单元格都包含一个 textfield 和一些标签围绕它。到目前为止，原始方法（以及这个奇怪的......）只滚动到目前为止文本字段可见而不是整个单元格。

但为什么呢？我希望整个单元格向上滚动。我错误地计算了插图吗？我不这么认为......我的所有观点都在桌面视图下方有一个桌面视图和一个页脚视图（高度55）。有些人还在桌子上方有一个标题（高度80）。但是它们都没有将整个单元格滚动到视图中，只有文本区域 atScrollPosition参数的影响为零，它的滚动始终相同..

- (void)keyboardWasShown:(NSNotification*)aNotification
{
    //All table views are embedded in the parent view
    //The parent view y is defined by the status and navigation bar, the height by the tab bar
    CGRect viewRect = self.view.frame;
    CGRect tableRect = self.tableView.frame;

    //The keyboard size will be adjusted that the height is really only the height overlapping the table
    NSDictionary* info = [aNotification userInfo];
    CGSize kbOriginalSize = [[info objectForKey:UIKeyboardFrameBeginUserInfoKey] CGRectValue].size;
    CGFloat effectiveKeyBoardHeight = kbOriginalSize.height - TABBARHEIGHT - (viewRect.size.height - tableRect.size.height - tableRect.origin.y); //the last origin property is important to find out if there is a header
    if(effectiveKeyBoardHeight < 0) effectiveKeyBoardHeight = 0;
    CGSize kbSize = CGSizeMake(kbOriginalSize.width, effectiveKeyBoardHeight);

    //Now the content insets will be adjusted for the calculated part of the keyboard overlapping the table
    UIEdgeInsets contentInsets = UIEdgeInsetsMake(0.0, 0.0, kbSize.height, 0.0);
    self.tableView.contentInset = contentInsets;
    self.tableView.scrollIndicatorInsets = contentInsets;

    // If active text field is hidden by keyboard, scroll it so it's visible
    // I've changed the apple code here! They use viewRect..in my app this doesn't make any sense, tableRect is key
    tableRect.size.height -= kbSize.height;

    if (!CGRectContainsPoint(tableRect, self.activeField.frame.origin) ) {
        //[self.tableView scrollRectToVisible:cell.frame animated:YES];
        [self.tableView scrollToRowAtIndexPath:[self indexPathForCellContainingUIElement:self.activeField] atScrollPosition:UITableViewScrollPositionNone animated:YES];
    }
}

iOS：scrollToRowAtIndexPath无法正确滚动...因为插图？

0 个答案: