ios - iOS 8.1 中带有网格线的核心图

Question

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Answer 1

//Add plot space

    CPTXYPlotSpace *plotSpace       = (CPTXYPlotSpace *)graph.defaultPlotSpace;

    plotSpace.delegate              = self;

    plotSpace.xRange = [CPTPlotRange plotRangeWithLocation:CPTDecimalFromInt(0.0) length:CPTDecimalFromInt(25)];

然后像这样更改 x 轴标签策略

x.labelingPolicy = CPTAxisLabelingPolicyFixedInterval;