ios UILabel的阴影

Question

I want to get a drop shadow under UILabel

Here is my code:

[lineBottom_btn3dot setBackgroundColor:[UIColor greenColor]];
    [lineBottom_btn3dot.layer setShadowColor:[UIColor blackColor].CGColor];
    [lineBottom_btn3dot.layer setShadowOffset:CGSizeMake(0, 1.5f)];
    [lineBottom_btn3dot.layer setMasksToBounds:NO];
    lineBottom_btn3dot.layer.shadowRadius = 5;
    lineBottom_btn3dot.layer.shadowOpacity = 0.5f;

It show label , but it's not show drop shadow.

Please help me!

Answer 1

[lineBottom_btn3dot setShadowColor:[UIColor lightGrayColor]];
[lineBottom_btn3dot setShadowOffset:CGSizeMake(0,1)];

Answer 2

You should give significantly large Y offset to your shadow, for example 10 . Your code is correct but you can't notice it with a little value. And also increasing shadowRadius looses the meaning of dropped shadow. To test it you can change your code like below:

[lineBottom_btn3dot setShadowOffset:CGSizeMake(0,10)];
lineBottom_btn3dot.layer.shadowRadius = 3;