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ios - 从 imagePickerController 更改单元格的背景颜色

问题描述

请告诉我如何backGroundColor从 imagePickerController 函数更改单元格：

func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {
        self.dismiss(animated: true, completion: nil)
        //let imageUser = info[UIImagePickerController.InfoKey.editedImage] as! UIImage

        let indexPath = IndexPath(item: 0, section: 0)
        let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "cellRegisterMarket", for: indexPath) as! cellRegisterMarket
        cell.backgroundColor = .red
}

标签： iosswiftuiimagepickercontroller

解决方案

替换这个

let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "cellRegisterMarket", for: indexPath) as! cellRegisterMarket

和

let cell = collectionView.cellForItem(at:indexPath) as! cellRegisterMarket

顺便说一句，这不是一个好方法，更新模型并重新加载集合

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