通过使用UIImagePickerController，我可以裁剪图片并将其保存在iPhone目录中吗？

Question

谁能告诉我UIIMAGEPICKER如何裁剪图片，并将此裁剪图片保存在iPhone目录中，以便将图片的路径保存在数据库中并重新使用？

Answer 1

Try this:

- (void)imagePickerController:(UIImagePickerController *)picker 
                              didFinishPickingMediaWithInfo:(NSDictionary *)info{

UIImage *img = [info objectForKey:UIImagePickerView.UIImagePickerControllerEditedImage];
//I think that's how you're supposed to get the image. Fiddle with it.

img.size = CGSizeMake(x, y);
img.scale = 0.75; //scale the image to 75 percent of it's original size. 

UIImageWriteToSavedPhotosAlbum (*img, self, @selector(photoSaved), nil);

}

-(void)photoSaved image: (UIImage *) image 
      didFinishSavingWithError: (NSError *) error 
                          contextInfo: (void *) contextInfo;{
    if(!error){
    NSLog(@"Photo saved to library!");
    } else{
        NSLog(@"Saving failed :(");
     }

}