How to add UILabel above UILabel

Question

If i set bottomLabel .text = Chinese character,i can't see the aboveLabel when i run it and if i debug view hierarchy i can see it.so what's the problem?

    UILabel *bottomLabel  = [[UILabel alloc]initWithFrame:CGRectMake(0, 100, 200, 40)];
    bottomLabel.backgroundColor = [UIColor redColor];
    bottomLabel.text = @"中文";
    [self.view addSubview:bottomLabel];   
    UILabel *aboveLabel = [[UILabel alloc]initWithFrame:CGRectMake(0, 0, 60, 30)];
    aboveLabel.backgroundColor = [UIColor greenColor];
    aboveLabel.text = @"aboveLabel";
    [bottomLabel addSubview:aboveLabel];

Answer 1

why dont you use NSMutableAttributedString for this with one LABEL.

NSString *text1 = @"Hello";
NSString *date1 = @"                                               12.05 Pm\n";

NSString *text2 = @"World";
NSString *date2 = @"                                               11.00 AM";


self.lbl.numberOfLines = 0;

NSString * str = [text1 stringByAppendingString:date1];
NSString * str2 = [text2 stringByAppendingString:date2];



UIFont *text1Font = [UIFont fontWithName:@"HelveticaNeue-Medium" size:10];
NSMutableAttributedString *attributedString1 = [[NSMutableAttributedString alloc] initWithString: str attributes:@{ NSFontAttributeName : text1Font }];
NSMutableParagraphStyle *paragraphStyle1 = [[NSMutableParagraphStyle alloc] init];
[paragraphStyle1 setAlignment: NSTextAlignmentLeft];
[paragraphStyle1 setLineSpacing:1];
[attributedString1 addAttribute:NSParagraphStyleAttributeName value: paragraphStyle1 range:NSMakeRange(0, [attributedString1 length])];


UIFont *text2Font = [UIFont fontWithName:@"HelveticaNeue-Medium" size:10];
NSMutableAttributedString *attributedString2 = [[NSMutableAttributedString alloc] initWithString: str2 attributes:@{NSFontAttributeName : text2Font }];
NSMutableParagraphStyle *paragraphStyle2 = [[NSMutableParagraphStyle alloc] init];
[paragraphStyle2 setLineSpacing:1];
[paragraphStyle2 setAlignment: NSTextAlignmentLeft];
[attributedString2 addAttribute:NSParagraphStyleAttributeName value: paragraphStyle2 range:NSMakeRange(0, [attributedString2 length])];

   [attributedString1 appendAttributedString:attributedString2];

   [self.lbl setAttributedText:attributedString1];

Answer 2

because above label is overlap on bottom label like above image so you not display that if you see that label above label x position change then it display.

if x value set 50 then you display bottm label.

Answer 3

您正在尝试加入aboveLabel内bottomLabel 。相反都添加到一个视图或self.view。

Answer 4

You are adding aboveLabel as subview of bottomLabel hence it doesnot get displayed when you assign chinese character to it. You can see it view hierarchy as it is assigned a frame and added as subview. If you want to add one UILabel above UILabel you can add both labels as subview of common parent view. ie

[self.view addSubview:bottomLabel]; 
[self.view addSubview:aboveLabel];

Answer 5

UILabel *bottomLabel  = [[UILabel alloc]initWithFrame:CGRectMake(0, 100, 200, 40)];
    bottomLabel.backgroundColor = [UIColor redColor];
    bottomLabel.text = @"中文";
    [self.view addSubview:bottomLabel];
    UILabel *aboveLabel = [[UILabel alloc]initWithFrame:CGRectMake(0, CGRectGetMaxY(bottomLabel.frame)+10, 60, 30)];
    aboveLabel.backgroundColor = [UIColor greenColor];
    aboveLabel.text = @"aboveLabel";
    [self.view addSubview:aboveLabel];

Answer 6

Try this code

Objective - C

    UILabel *bottomLabel  = [[UILabel alloc]initWithFrame:CGRectMake(0, 0, 200, 30)];
    bottomLabel.backgroundColor = [UIColor redColor];
    bottomLabel.text = @"中文";
    [self.view addSubview:bottomLabel];   
    UILabel *aboveLabel = [[UILabel alloc]initWithFrame:CGRectMake(50, 0, 60, 30)];
    aboveLabel.backgroundColor = [UIColor greenColor];
    aboveLabel.text = @"abc";
    [bottomLabel addSubview:aboveLabel];