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设置 PNLineChartData 的数据中,只有一个数据,也就是折线图只显示一个点。点击屏幕,程序直接崩了。崩溃在,- (void)touchPoint:(NSSet *)touches withEvent:(UIEvent *)event 这个方法。
NSArray * data01Array = @[@13.1];
PNLineChartData *data01 = [PNLineChartData new];
data01.color = PNFreshGreen;
data01.inflexionPointStyle = PNLineChartPointStyleCircle;
data01.inflexionPointColor = [UIColor yellowColor];
data01.itemCount = data01Array.count;
data01.getData = ^(NSUInteger index) {
CGFloat yValue = [data01Array[index] floatValue];
return [PNLineChartDataItem dataItemWithY:yValue];
};
lineChart.chartData = @[data01];
[lineChart strokeChart];
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