假设我在UILabel中有以下文本(一长行动态文本):
由于外星军队的数量远远超过了团队,玩家必须利用后世界末日的优势,比如在垃圾箱、柱子、汽车、瓦砾和其他物体后面寻找掩护。
我想调整UILabel的高度,这样文本就可以放进去了。我使用以下属性的UILabel,使文本内包装。
myUILabel.lineBreakMode = UILineBreakModeWordWrap;
myUILabel.numberOfLines = 0;
如果我的方向不对,请告诉我。谢谢。
假设我在UILabel中有以下文本(一长行动态文本):
由于外星军队的数量远远超过了团队,玩家必须利用后世界末日的优势,比如在垃圾箱、柱子、汽车、瓦砾和其他物体后面寻找掩护。
我想调整UILabel的高度,这样文本就可以放进去了。我使用以下属性的UILabel,使文本内包装。
myUILabel.lineBreakMode = UILineBreakModeWordWrap;
myUILabel.numberOfLines = 0;
如果我的方向不对,请告诉我。谢谢。
当前回答
谢谢大家的帮助,这是我尝试的代码,这是为我工作
UILabel *instructions = [[UILabel alloc]initWithFrame:CGRectMake(10, 225, 300, 180)];
NSString *text = @"First take clear picture and then try to zoom in to fit the ";
instructions.text = text;
instructions.textAlignment = UITextAlignmentCenter;
instructions.lineBreakMode = NSLineBreakByWordWrapping;
[instructions setTextColor:[UIColor grayColor]];
CGSize expectedLabelSize = [text sizeWithFont:instructions.font
constrainedToSize:instructions.frame.size
lineBreakMode:UILineBreakModeWordWrap];
CGRect newFrame = instructions.frame;
newFrame.size.height = expectedLabelSize.height;
instructions.frame = newFrame;
instructions.numberOfLines = 0;
[instructions sizeToFit];
[self addSubview:instructions];
其他回答
对于那些迁移到iOS 8的人,这里有一个Swift的类扩展:
extension UILabel {
func autoresize() {
if let textNSString: NSString = self.text {
let rect = textNSString.boundingRectWithSize(CGSizeMake(self.frame.size.width, CGFloat.max),
options: NSStringDrawingOptions.UsesLineFragmentOrigin,
attributes: [NSFontAttributeName: self.font],
context: nil)
self.frame = CGRectMake(self.frame.origin.x, self.frame.origin.y, self.frame.size.width, rect.height)
}
}
}
UILabel *itemTitle = [[UILabel alloc] initWithFrame:CGRectMake(10.0f, 10,100, 200.0f)];
itemTitle.text = @"aseruy56uiytitfesh";
itemTitle.adjustsFontSizeToFitWidth = NO;
itemTitle.autoresizingMask = UIViewAutoresizingFlexibleWidth;
itemTitle.font = [UIFont boldSystemFontOfSize:18.0];
itemTitle.textColor = [UIColor blackColor];
itemTitle.shadowColor = [UIColor whiteColor];
itemTitle.shadowOffset = CGSizeMake(0, 1);
itemTitle.backgroundColor = [UIColor blueColor];
itemTitle.lineBreakMode = UILineBreakModeWordWrap;
itemTitle.numberOfLines = 0;
[itemTitle sizeToFit];
[self.view addSubview:itemTitle];
使用这里所有的属性都使用在标签上,并通过增加itemTitle中的文本来测试它。文本
itemTitle.text = @"diofgorigjveghnhkvjteinughntivugenvitugnvkejrfgnvkhv";
它会根据你的需要给出完美的答案
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
cellIdentifier = @"myCell";
cell = [tableView dequeueReusableCellWithIdentifier:cellIdentifier];
cell.myUILabel.lineBreakMode = UILineBreakModeWordWrap;
cell.myUILabel.numberOfLines = 0;
cell.myUILabel.text = @"Some very very very very long text....."
[cell.myUILabel.criterionDescriptionLabel sizeToFit];
}
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
UITableViewCell *cell = [self tableView:tableView cellForRowAtIndexPath:indexPath];
CGFloat rowHeight = cell.myUILabel.frame.size.height + 10;
return rowHeight;
}
当自动布局被启用时,调整大小不工作:)
NSString *str = @"Please enter your text......";
CGSize lblSize = [str sizeWithFont:[UIFont systemFontOfSize:15] constrainedToSize: CGSizeMake(200.0f, 600.0f) lineBreakMode: NSLineBreakByWordWrapping];
UILabel *label = [[UILabel alloc]init];
label.frame = CGRectMake(60, 20, 200, lblSize.height);
label.numberOfLines = 0;
label.lineBreakMode = NSLineBreakByWordWrapping;
label.font = [UIFont systemFontOfSize:15];
label.text = str;
label.backgroundColor = [UIColor clearColor];
[label sizeToFit];
[self.view addSubview:label];