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是时候再问一个 iOS 问题了。
只是想知道是否可以通过编程方式更改滑块控制按钮的半径。我想让控件更大或更小以表示它正在选择的画笔大小。
谢谢!
从文档:
Assigns a thumb image to the specified control states: - (void)setThumbImage:(UIImage *)image forState:(UIControlState)state