iphone - 带有分隔图像的 UISegementedControl 包含空格

Question

我正在使用背景和分隔图像来自定义 UISegmentedControl。但是，分隔图像和段控件的背景图像之间会出现一个空格。

这是显示空格的屏幕截图

这是我用来设置片段图像的代码

UIImage *selectedImage = [[UIImage imageNamed:@"segcontrol_selectround.png"] resizableImageWithCapInsets:UIEdgeInsetsMake(0, 10, 0, 10)];
UIImage *unselectedImage = [[UIImage imageNamed:@"segcontrol_unselectround.png"] resizableImageWithCapInsets:UIEdgeInsetsMake(0, 10, 0, 10)];
UIImage *leftSelected = [UIImage imageNamed:@"segcontrol_leftselected.png"];
UIImage *rightSelected = [UIImage imageNamed:@"segcontrol_rightselected.png"];
UIImage *neitherSelected = [UIImage imageNamed:@"segcontrol_bothunselected.png"];

[segment setBackgroundImage:unselectedImage forState:UIControlStateNormal barMetrics:UIBarMetricsDefault];
[segment setBackgroundImage:selectedImage forState:UIControlStateSelected barMetrics:UIBarMetricsDefault];
[segment setDividerImage:leftSelected forLeftSegmentState:UIControlStateSelected rightSegmentState:UIControlStateNormal barMetrics:UIBarMetricsDefault];
[segment setDividerImage:rightSelected forLeftSegmentState:UIControlStateNormal rightSegmentState:UIControlStateSelected barMetrics:UIBarMetricsDefault];
[segment setDividerImage:neitherSelected forLeftSegmentState:UIControlStateNormal rightSegmentState:UIControlStateNormal barMetrics:UIBarMetricsDefault];

我检查了所有的分隔图像，它们的宽度都相同，并且不包含任何透明像素。

如何从分段控件中删除这些空格？

Answer 1

确保用于分隔线的图像(leftSelected、rightselected 和neitherselected)的宽度都相同。通常是因为 neitherselected 中间有一条线，它比其他线宽 1pt。它们都必须相同!