Pra*_*y C 0 uiimage ios swift photosframework phasset
我正在使用 PHImageCachingManager 来获取 PHAsset 的图像。我需要使用opportunistic模式,以便首先加载可用的低分辨率图像,然后在全分辨率可用时加载它。
出于某种原因,我不断收到以下警告,但我的低分辨率图像无法加载。图像仅在获取最高分辨率时加载(从 iCloud)。
警告:
"First stage of an opportunistic image request returned a non-table format image, this is not fatal, but it is unexpected."
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我究竟做错了什么?
let imageRequestOptions = PHImageRequestOptions()
imageRequestOptions.isNetworkAccessAllowed = true
imageRequestOptions.deliveryMode = .opportunistic
let imageCachingManager = PHCachingImageManager()
imageCachingManager.requestImage(for: asset , targetSize: PHImageManagerMaximumSize, contentMode: .aspectFill, options: imageRequestOptions) { (image, infoDict) in
DispatchQueue.main.async {
if self.myImageView.identifierTag == asset.localIdentifier {
self.myImageView.image = image
}
}
}
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imageCachingManager.requestImage(for: asset , targetSize: PHImageManagerMaximumSize, contentMode: .aspectFill, options: imageRequestOptions) { (image, infoDict) in
DispatchQueue.main.async {
if self.myImageView.identifierTag == asset.localIdentifier {
self.myImageView.image = image
}
}
}
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您正在设置可用的最大尺寸作为图像尺寸。改变
targetSize: PHImageManagerMaximumSize
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到
targetSize: CGSize(width: asset.pixelWidth, height: asset.pixelHeight)
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或者指定像 CGSize(with: 150, height: 150) 这样的图像大小,除非你想因为内存耗尽而爆炸你的设备。