创建我自己的iphone Photolibrary

Question

我想创建我自己的照片库,从我的图书馆获取图像并将它们保存到我的图书馆并询问是否要更改...是否会感谢任何帮助

问候

·高斯

Answer 1

你可以让用户使用UIImagePickerControl选择要导入的图像.有关详细信息,请参阅此优秀帖子 /sf/ask/89798131/

然后使用类似的东西将图像保存/加载到您自己的应用程序

- (void)saveImage: (UIImage*)image
{
    if (image != nil)
    {
        NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, 
                      NSUserDomainMask, YES);
        NSString *documentsDirectory = [paths objectAtIndex:0];
        NSString* path = [documentsDirectory stringByAppendingPathComponent: 
                       [NSString stringWithString: @"test.png"] ];
        NSData* data = UIImagePNGRepresentation(image);
        [data writeToFile:path atomically:YES];
    }
}



- (UIImage*)loadImage
{
    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, 
                      NSUserDomainMask, YES);
    NSString *documentsDirectory = [paths objectAtIndex:0];
    NSString* path = [documentsDirectory stringByAppendingPathComponent: 
                      [NSString stringWithString: @"test.png"] ];
    UIImage* image = [UIImage imageWithContentsOfFile:path];
    return image;
}