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我想获取已在 PKCanvasView 中绘制的每个点位置和压力的数据,我尝试过touchesBegan启用保持用户交互和手势识别器,但没有一个对我有用。如果有任何其他解决方案可以跟踪 iPencil 的这些值,请指导我。
touchesBegan