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如何创建这样的自定义索引。我试图在后面给出图像和颜色,但它对我不起作用。
请参阅UIButton TouchUpInside 触摸位置- 就像拥有 26 * n 像素高度的自定义按钮一样简单,y 值除以 26 并转换为字符将为您提供索引。