从 iphone App 启动照片库

Question

是否可以从我的应用程序启动（将用户重定向到）iphone 的本机照片库应用程序，类似于电子邮件？这现在可以在 4.2 sdk 中实现吗？

Answer 1

为此，您必须像这样创建并呈现UIImagePickerController：

UIImagePickerController *imagePicker = [[UIImagePickerController alloc] init];
imagePicker.delegate = self;
imagePicker.allowsEditing = YES;
imagePicker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary; 
[self presentModalViewController:imagePicker animated:YES];

如果您希望用户改用相机，您可以将imagePicker.sourceType 更改为imagePicker.sourceType = UIImagePickerControllerSourceTypeCamera;。

委托方法：- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info 将为您提供info 字典中的图像。