iOS 7中的UISegmentedControl

Question

我有一个带有两个分段控件的项目。他们都工作到iOS7.0。现在一个没有。我已阅读tintColor的问题，但我认为这是不同的。

这两个控件都使用UIImages作为段。其中之一，图像都显示正确。另一方面，我得到所有蓝色图像。

我做错了什么或者这是一个错误？

这里的故障段的代码：

UISegmentedControl *colorControl = [[UISegmentedControl alloc] initWithItems: 
    [NSArray arrayWithObjects: 
    [UIImage imageNamed:@"White.png"], 
    [UIImage imageNamed:@"Red.png"], 
    [UIImage imageNamed:@"Yellow.png"], 
    [UIImage imageNamed:@"Green.png"], 
    [UIImage imageNamed:@"Blue.png"], 
    [UIImage imageNamed:@"Purple.png"], 
    [UIImage imageNamed:@"Black.png"], nil]]; 



    CGRect frame = CGRectMake(rect.origin.x + kLeftMargin, rect.size.height - kPaletteHeight - kTopMargin, rect.size.width - (kLeftMargin + kRightMargin), kPaletteHeight); 
    colorControl.frame = frame; 

    // Add DoubleTap Color capability 

    gesture = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(showMoreColors:)]; 
    [gesture setNumberOfTapsRequired:2]; 

    [colorControl addGestureRecognizer:gesture]; 

    // When the user chooses a color, the method changeColor: is called. 
    [colorControl addTarget:self action:@selector(changeColor:) forControlEvents:UIControlEventValueChanged]; 

    // Make sure the color of the color complements the black background 
    //colorControl.tintColor = [UIColor clearColor]; 

    // Add the control to the window 
    [self.view addSubview:colorControl]; 

虽然图像都是蓝色，段正常工作。

Answer 1

感谢this question，我制定了如下修正：

-(void) buildColorBar { 
    //NSLog(@"%s", __FUNCTION__); 

    UIImage *whiteImage = [UIImage imageNamed:@"White.png"]; 
    UIImage *blackImage = [UIImage imageNamed:@"Black.png"]; 
    UIImage *purpleImage = [UIImage imageNamed:@"Purple.png"]; 
    UIImage *redImage = [UIImage imageNamed:@"Red.png"]; 
    UIImage *blueImage = [UIImage imageNamed:@"Blue.png"]; 
    UIImage *greenImage = [UIImage imageNamed:@"Green.png"]; 
    UIImage *yellowImage = [UIImage imageNamed:@"Yellow.png"]; 

    NSArray *colorArray = [[NSArray alloc] initWithObjects: 
        [whiteImage imageWithRenderingMode: UIImageRenderingModeAlwaysOriginal], 
        [redImage imageWithRenderingMode: UIImageRenderingModeAlwaysOriginal ], 
        [yellowImage imageWithRenderingMode: UIImageRenderingModeAlwaysOriginal ], 
        [greenImage imageWithRenderingMode: UIImageRenderingModeAlwaysOriginal ], 
        [blueImage imageWithRenderingMode: UIImageRenderingModeAlwaysOriginal ], 
        [purpleImage imageWithRenderingMode: UIImageRenderingModeAlwaysOriginal ], 
        [blackImage imageWithRenderingMode: UIImageRenderingModeAlwaysOriginal ], nil ]; 


    UISegmentedControl *colorControl = [[UISegmentedControl alloc] initWithItems:colorArray]; 

    CGRect frame = CGRectMake(rect.origin.x + kLeftMargin, rect.size.height - kPaletteHeight - kTopMargin, rect.size.width - (kLeftMargin + kRightMargin), kPaletteHeight); 
    colorControl.frame = frame; 

我希望它可以帮助别人。