如何仅在合适的单元格中为标签从左到右添加填充

Question

如何只为 UITableViewCell 中的标签从左到右添加填充？

这是我的代码：

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
static NSString *CellIdentifier = @"cellmessage";
SendMessageTableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];

// Configure the cell...
if (cell == nil) {
    cell = [[SendMessageTableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}

[cell setAccessoryType:UITableViewCellAccessoryNone];
NSDictionary *dict = [self->serverArray objectAtIndex: indexPath.row];
cell.celllab.text= [dict objectForKey:@"message"];



CGFloat fixedWidth = cell.celllab.frame.size.width;
CGSize newSize = [cell.celllab sizeThatFits:CGSizeMake(fixedWidth, MAXFLOAT)];
CGRect newFrame = cell.celllab.frame;
newFrame.size = CGSizeMake(fmaxf(newSize.width, fixedWidth), newSize.height + 10);
cell.celllab.frame = newFrame;
cell.celllab.layer.cornerRadius = 4.0f;
cell.celllab.layer.masksToBounds = YES;


//cell.celllab.layer.borderColor = [UIColor blackColor].CGColor;
//cell.celllab.layer.borderWidth = 10.0;

CAShapeLayer *shape = [CAShapeLayer layer];
shape.frame = cell.celllab.bounds;
//shape.path = maskPath.CGPath;
shape.lineWidth = 3.0f;
shape.strokeColor = [UIColor whiteColor].CGColor;
[cell.celllab.layer addSublayer:shape];


if([[dict objectForKey:@"type"] isEqualToString:@"u2a"])
{
    cell.celllab.textAlignment = NSTextAlignmentRight;
    cell.celllab.backgroundColor = [UIColor colorWithRed:0.7 green:0.91 blue:0.26 alpha:1];
    cell.celllab.textColor = [UIColor blackColor];


    cell.blackarrow.hidden = YES;
    cell.greenarrow.hidden = NO;

    cell.bmwatch.hidden = YES;
    cell.swiliam.hidden = NO;

    cell.greenmsg.hidden = NO;
    cell.whitemsg.hidden = YES;
}
else
{
    cell.celllab.backgroundColor = [UIColor blackColor];
    cell.celllab.textColor = [UIColor whiteColor];
    cell.celllab.textAlignment = NSTextAlignmentLeft;


    cell.greenarrow.hidden = YES;
    cell.blackarrow.hidden = NO;

    cell.bmwatch.hidden = NO;
    cell.swiliam.hidden = YES;

    cell.greenmsg.hidden = YES;
    cell.whitemsg.hidden = NO;

}
return cell;
}

Answer 1

在您的 SendMessageTableViewCell class 中编写以下函数来更改其子视图的框架

 - (void)layoutSubviews{
       self.textLabel.frame = CGRectMake(rightPadding, topPadding,self.frame.size.width -      (2*rightPadding), self.frame.size.height-(2*topPadding)) 
    }

自定义 class 中的上述代码将在您的单元格内容子视图更改其框架时调用，届时您可以为标签添加填充，也可以更改其他内容框架。

Answer 2

它非常 simple.Just 将 uilabel 子类化并编写此方法

- (void)drawTextInRect:(CGRect)rect {
    UIEdgeInsets insets = {0, 5, 0, 5};
    return [super drawTextInRect:UIEdgeInsetsInsetRect(rect, insets)];
}

如何仅在合适的单元格中为标签从左到右添加填充

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