Question

由于我对iOS开发非常陌生，我试图将图像库中的uiimage添加到数组中。但是当我尝试使用数组向uiimageview添加图像时，它会显示错误

[UIImage stringByDeletingPathExtension]：发送到的无法识别的选择器实例0x7fefd3ea02f0。

choosen_Imgae = info[ UIImagePickerControllerOriginalImage]; 
// 
// choosen_Imgae = [self resizeImage:choosen_Image];
NSLog(@"chosen image %@",choosen_Imgae); 
[picker dismissViewControllerAnimated:YES completion:NULL]; 
NSData *dataImage = [[NSData alloc] init]; 
dataImage = UIImagePNGRepresentation(choosen_Imgae); 
if (dataImage != nil) { 
    [image_Arr insertObject:choosen_Imgae atIndex:indexxpath.row];
    NSLog(@"image array after adding object %@",image_Arr);
}

Answer 1

兄弟只需将图像添加到阵列中即可。

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
   UIImage *choosen_Imgae=[info objectForKey:@"UIImagePickerControllerOriginalImage"];
   [image_Arr addObject:image];
   [picker dismissViewControllerAnimated:YES completion:nil];
}

如果你在didFinishPickingMediaWithInfo中使用NSData，那么它是一个很长的过程（image-＆gt; NSData）。当再次从数组中取出图像时，你必须将NSData转换为图像。所以你可以直接将图像保存到数组中。您也不需要将insertObject用于数组。

从数组中获取图像时

for (int i=0; i<[image_Arr count]; i++)
{
    UIImage *fetch_Image = [image_Arr objectATIndex:i];
    imageView.image = fetch_Image;
}

如何将图库从iPhone库添加到阵列IOS

1 个答案: