how to check whether image object has value

发布时间：2020-12-14 06:59:03 所属栏目：百科来源：网络整理

导读：UIImage can not be nil in fact. there are two ways to check whether image object has value Way 1: let uiimage as UIImage? and then set it initially to nil Way2: check its size property. if size is zero,it properly is empty object.

UIImage can not be nil in fact.

there are two ways to check whether image object has value Way 1: let uiimage as UIImage? and then set it initially to nil Way2: check its size property. if size is zero,it properly is empty object.

（编辑：李大同）

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