iPhone6 中缺失的饼图切片适用于 iphone5

Question

我正在使用 BNPieChart。 iPhone6s (iOS 10.2.1) 中的饼图切片丢失了，但相同的代码在 iPhone5s (iOS 10.2.1) 和 iPhone5s (iOS 10.2.1)。

这是我的代码：

- (void)viewDidAppear:(BOOL)animated {

    CGRect pieFrame = CGRectMake(30, 78, 240, 240);
    self.chart = [[BNPieChart alloc] initWithFrame:pieFrame];

    BNColor *emergencyColor = [BNColor colorWithRed:142.0/255.0 green:1.0/255.0 blue:32.0/255.0];
    BNColor *urgentColor = [BNColor colorWithRed:231.0/255.0 green:133.0/255.0 blue:8.0/255.0];
    BNColor *nonUrgentColor = [BNColor colorWithRed:97.0/255.0 green:147.0/255.0 blue:3.0/255.0];

    self.chart.colors = [NSArray arrayWithObjects:emergencyColor,urgentColor,nonUrgentColor, nil];

    [self.chart addSlicePortion:emergencyCount/totalCount withName:[NSString stringWithFormat:@"%.1f%%",(emergencyCount/totalCount)*100]];
    [self.chart addSlicePortion:urgentCount/totalCount withName:[NSString stringWithFormat:@"%.1f%%",(urgentCount/totalCount)*100]];
    [self.chart addSlicePortion:nonUrgentCount/totalCount withName:[NSString stringWithFormat:@"%.1f%%",(nonUrgentCount/totalCount)*100]];

    [self.view addSubview:self.chart];
}

在iphone6上它只显示渐变暗灰色圆圈，看图：

但它适用于 iPhone5(iOS 10.2.1)

Answer 1

其实需要在BNPieChart类里面改。 CGFloat 和 float* 之间不兼容替换 BNPieChart.m 中的以下代码行：

//  CGFloat red, green, blue;
//  [self getRGBForIndex:index red:&red green:&green blue:&blue];

到

CGFloat red, green, blue;
BNColor *color = [colors objectAtIndex:(index % [colors count])];
red = color.red;
green = color.green;
blue = color.blue;

观看 viewDidAppear 以达到结果。如果有人像我一样实施了 BNPieChart，它就可以正常工作。

iPhone6 中缺失的饼图切片适用于 iphone5

Missing slices of piechat in iPhone6 works fine for iphone5

objective-c

ios

pie-chart

iphone-6

ios10