UITableView 行高不变 [英] UITableView row height not changing
本文介绍了UITableView 行高不变的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我创建了一个自定义单元格.我有一系列字典.对于字典值,我需要创建 UILable
s.每个单元格可能包含不同数量的 UILabel
.所以在我的自定义 UITableViewCell
类中,我是这样做的.
I have created a custom Cell. I have an array of dictionaries. For the dictionary values I need to create UILable
s. Each cell may contained different number of UILabel
s. So in my custom UITableViewCell
class I have done like this.
- (void)generateCell {
BOOL isLandscape = UIInterfaceOrientationIsLandscape(vc.interfaceOrientation);
for (int i = 0; i < [orderMap count]; i++) {
UILabel *lbl = [[UILabel alloc] init];
[lbl setTextColor:[UIColor blueColor]];
[lbl setBackgroundColor:[UIColor yellowColor]];
lbl.tag = [[orderMap objectAtIndex:i] intValue];
[lbl setNumberOfLines:0];
[self.contentView addSubview:lbl];
[lbl setTranslatesAutoresizingMaskIntoConstraints:false];
}
if (isLandscape) {
}
else {
[self setConstraintsForPortrait];
}
}
- (void)setConstraintsForPortrait {
double currentUsedWidth = 0;
double relativeWidthLimit = 1;
int reservedPaddingSpace = 20;
int usableScreenWidthPts = 0;
int xPositionStartingPoint = 15;
int xPosition = xPositionStartingPoint;
int yPosition = INDIVIDUAL_PADDING_PTS;
int fieldCounter = 0;
UIView *previousView;
for (UIView *vw in [self.contentView subviews]) {
NSLayoutConstraint *leading = [NSLayoutConstraint constraintWithItem:vw attribute:NSLayoutAttributeLeading relatedBy:NSLayoutRelationEqual toItem:self.contentView attribute:NSLayoutAttributeLeading multiplier:1.0 constant:(xPosition + INDIVIDUAL_PADDING_PTS)];
NSLayoutConstraint *top;
if (previousView == nil) {
top = [NSLayoutConstraint constraintWithItem:vw attribute:NSLayoutAttributeTop relatedBy:NSLayoutRelationEqual toItem:self.contentView attribute:NSLayoutAttributeTop multiplier:1.0 constant:INDIVIDUAL_PADDING_PTS];
}
else {
top = [NSLayoutConstraint constraintWithItem:vw attribute:NSLayoutAttributeTop relatedBy:NSLayoutRelationEqual toItem:previousView attribute:NSLayoutAttributeBottom multiplier:1.0 constant:INDIVIDUAL_PADDING_PTS];
}
NSLayoutConstraint *trailing = [NSLayoutConstraint constraintWithItem:vw attribute:NSLayoutAttributeTrailing relatedBy:NSLayoutRelationEqual toItem:self.contentView attribute:NSLayoutAttributeTrailing multiplier:1.0 constant:INDIVIDUAL_PADDING_PTS];
if (fieldCounter >= [orderMap count]) {
NSLayoutConstraint *bottom = [NSLayoutConstraint constraintWithItem:vw attribute:NSLayoutAttributeBottom relatedBy:NSLayoutRelationEqual toItem:self.contentView attribute:NSLayoutAttributeBottom multiplier:1.0 constant:INDIVIDUAL_PADDING_PTS];
[self.contentView addConstraint:bottom];
}
[self.contentView addConstraint:leading];
[self.contentView addConstraint:top];
[self.contentView addConstraint:trailing];
previousView = vw;
}
}
在我的 UIViewController
viewDidLoad
方法中,我已经做到了.
And in my UIViewController
viewDidLoad
method I have done this.
UINib *nib = [UINib nibWithNibName:@"TableViewCell" bundle:[NSBundle mainBundle]];
[self.tbl registerNib:nib forCellReuseIdentifier:metadataListTableIdentifier];
self.tbl.estimatedRowHeight = 200;
self.tbl.rowHeight = UITableViewAutomaticDimension;
[self.tbl reloadData];
为什么单元格高度没有变化?请帮我.谢谢
Why the cell height is not changing? Please help me. Thanks
推荐答案
就我而言,我使用的是函数 :
In my case, I was using the function :
func tableView(_ tableView: UITableView, estimatedHeightForRowAt indexPath: IndexPath) -> CGFloat {
return 100
}
代替
func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
return 100
}
确保您使用的是正确的函数.
Make sure you are using the correct function.
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