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My USB Device IOS technology support urlMy USB Device iOS technology support url: You may leave a message if you...
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layoutSubviews在以下情況下會(huì)被調(diào)用：
layoutSubviews在以下情況下會(huì)被調(diào)用： 1煎殷、init初始化不會(huì)觸發(fā)layoutSubviews弛说。 2康谆、addSubview會(huì)觸發(fā)la...
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UIView繪制原理self.layer.delegate = self ;這個(gè)方法不用寫(xiě)最盅，系統(tǒng)默認(rèn)會(huì)設(shè)置delegate為當(dāng)前view 當(dāng)調(diào)用setNeedsDi...