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所以這個對你來說應該很簡單。 我很難保存編輯UIImage(只是水平翻轉)到同一個文件。相反,它會創建一個新的。將編輯好的UIImage文件保存到同一個文件
代碼:
// Get current photo
id<MWPhoto> currentPhoto = [self photoAtIndex:_currentPageIndex];
// Get current image object from photo
UIImage *currentImage = [self imageForPhoto:(currentPhoto)];
// Mirror it
currentImage = [UIImage imageWithCGImage:currentImage.CGImage
scale:currentImage.scale
orientation:UIImageOrientationUpMirrored];
// Get NSData from image
NSData *imageData = UIImageJPEGRepresentation(currentImage, 1);
// Create ALAsssetsLibrary to save data to photos
ALAssetsLibrary *library = [[ALAssetsLibrary alloc] init];
[library writeImageDataToSavedPhotosAlbum:imageData metadata:nil completionBlock:^(NSURL *assetURL, NSError *error) {
if (error != nil) {
NSLog(@"There was an error saving image");
} else {
NSLog(@"Image should be saved");
}
}];
任何想法,我做錯了什麼?
與UIImageWriteToSavedPhotosAlbum(currentImage, nil, nil, nil);
,但還是一樣也試過。