【优化】更改压缩可节约的的值

PhoneManager/Class/Session/Compress/Cell/CompressSelectCell.swift

@@ -27,34 +27,18 @@ class CompressSelectCell : UICollectionViewCell {
                     self.backImageView.image = image
                 }
             }
-            // 把压缩前的值减去压缩后的值就为可以节省的值。然后这里需要判定下如果是大于1000MB，则再除以1024换算成GB
-            let options = PHImageRequestOptions()
-            options.isSynchronous = false
-            options.deliveryMode = .highQualityFormat
-            options.isNetworkAccessAllowed = true
-            let fetchResult = PHAsset.fetchAssets(withLocalIdentifiers: [model.ident], options: nil)
-            
-            PHImageManager.default().requestImage(for: fetchResult.firstObject!, targetSize: PHImageManagerMaximumSize, contentMode:.aspectFit, options: options) { (image, _) in
-                if let originalImage = image {
-                    // 项目中用到的是【0.2、0.5和0.8】，这里我们初始化的时候使用0.2去计算
-                    if let compressedData = originalImage.jpegData(compressionQuality: 0.2) {
-                        let compressCompletedSize = Double(compressedData.count)
-                        let saveSize = model.orgSize - compressCompletedSize
-                        
-                        let sizeKB : Double = saveSize/1000
-                        DispatchQueue.main.async {
-                            if sizeKB < 1000{
-                                self.saveSizeLabel.text = String(format: "Save %.2f KB" ,sizeKB)
-                            }else if sizeKB < (1000 * 1000) && sizeKB > 1000{
-                                self.saveSizeLabel.text = String(format: "Save %.2f MB" ,sizeKB/1000)
-                            }else{
-                                self.saveSizeLabel.text = String(format: "Save %.2f GB" ,sizeKB/(1000 * 1000))
-                            }
-                        }
-                    }
+            // 这里不再进行计算了  直接按照50%的去计算
+            let saveSize = model.orgSize/2
+            let sizeKB : Double = saveSize/1000
+            DispatchQueue.main.async {
+                if sizeKB < 1000{
+                    self.saveSizeLabel.text = String(format: "Save %.2f KB" ,sizeKB)
+                }else if sizeKB < (1000 * 1000) && sizeKB > 1000{
+                    self.saveSizeLabel.text = String(format: "Save %.2f MB" ,sizeKB/1000)
+                }else{
+                    self.saveSizeLabel.text = String(format: "Save %.2f GB" ,sizeKB/(1000 * 1000))
                 }
             }
-            
         }
     }