Question

I m 试图利用Piber上摄像机的图像,为UIButton的习俗造影。纽顿有循环背景,实际上是一个循环。现在,我需要一个形象,在也出现在四舍五入的 but子中间。

谁能帮助我?

事先感谢

Answer 1

You must have set the corner radius of the button s layer to make it circular. But you cant do same with an image accurately.

You need to set the image property of the UIButton for the states you want. But more importantly make sure the image is also round.

图像不能四舍五入。如果你使用一个PNG,它就会支持透明度,从而具有透明度,从而显示这种形象。

btnImage = [UIImage imageNamed:@"image.png"];
[circularBtn setImage:btnImage forState:UIControlStateNormal];