Xiangli Jiaxing
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Xiangli Jiaxing
Random random = new Random(); SecureRandom random = new SecureRandom();
明显的可以看到，当把view拖动至屏幕左侧，屏幕左侧会有一块区域绘制不上，绘制的小红点的x轴错位的距离正好是不可绘制区域的宽度