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我的应用程序使用以下方法实现了自定义分段控件背景图像：

// customise the segmented controls
    UIImage *segmentSelected = [[UIImage imageNamed:@"segcontrol_sel.png"] resizableImageWithCapInsets:UIEdgeInsetsMake(0, 15, 0, 15)];
    UIImage *segmentUnselected = [[UIImage imageNamed:@"segcontrol_uns.png"] resizableImageWithCapInsets:UIEdgeInsetsMake(0, 15, 0, 15)];
    UIImage *segmentSelectedUnselected = [UIImage imageNamed:@"segcontrol_sel-uns.png"];
    UIImage *segUnselectedSelected = [UIImage imageNamed:@"segcontrol_uns-sel.png"];
    UIImage *segmentUnselectedUnselected = [UIImage imageNamed:@"segcontrol_uns-uns.png"];

    [[UISegmentedControl appearance] setBackgroundImage:segmentUnselected forState:UIControlStateNormal barMetrics:UIBarMetricsDefault];
        [[UISegmentedControl appearance] setBackgroundImage:segmentUnselected forState:UIControlStateDisabled barMetrics:UIBarMetricsDefault];
    [[UISegmentedControl appearance] setBackgroundImage:segmentSelected forState:UIControlStateSelected barMetrics:UIBarMetricsDefault];

    [[UISegmentedControl appearance] setDividerImage:segmentUnselectedUnselected forLeftSegmentState:UIControlStateNormal rightSegmentState:UIControlStateNormal barMetrics:UIBarMetricsDefault];    
    [[UISegmentedControl appearance] setDividerImage:segmentSelectedUnselected forLeftSegmentState:UIControlStateSelected rightSegmentState:UIControlStateNormal barMetrics:UIBarMetricsDefault];
    [[UISegmentedControl appearance] setDividerImage:segUnselectedSelected forLeftSegmentState:UIControlStateNormal rightSegmentState:UIControlStateSelected barMetrics:UIBarMetricsDefault];

在我更新到 XCode 4.5 和 iOS6 之前，它运行良好。现在是这样的： 在此处输入图像描述 您可以看到背景图像的大小已更改。有没有人有同样的问题？此外，某些屏幕的某些背景图像看起来更短。例如，在其中一个中，我有一个空格。

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1 回答 1

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如果图像处于该分辨率，请确保使用 @2x 命名图像。

我有一个类似的问题，当我添加它时已解决。

于 2013-03-20T08:49:56.000 回答