Question

我是ios开发的新手。我正在做一个照片裁剪应用程序。

我想通过点击浏览按钮（我在我的应用程序中添加）浏览iPhone图片库中的图像，并将其加载到我放置在视图中的UIImageview。

如何浏览图像？。

是否可以浏览完整的手机内存？（就像asp：FileUpload）。

iPhone中是否有可用的控件，如asp：FileUpload？

提前致谢。

Answer 1

超级容易！

UIImagePickerController *imagePicker = [[UIImagePickerController     alloc] init];
imagePicker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;

[imagePicker setDelegate:self];
[self presentModalViewController:imagePicker animated:YES];

和

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info 
{
    [picker dismissModalViewControllerAnimated:YES];
    [picker release];

    // Edited image works great (if you allowed editing)
    //myUIImageView.image = [info objectForKey:UIImagePickerControllerEditedImage];
    // AND the original image works great
    //myUIImageView.image = [info objectForKey:UIImagePickerControllerOriginalImage];
    // AND do whatever you want with it, (NSDictionary *)info is fine now
    //UIImage *myImage = [info objectForKey:UIImagePickerControllerEditedImage];

    UIImage *image =  [info objectForKey:UIImagePickerControllerOriginalImage];

    [customImageView setImage:image]; 

    customImageView.contentMode = UIViewContentModeScaleAspectFill;
}

从stackoverflow获取此代码，没有保存URL，抱歉。

Answer 2

如果您运行的是非越狱手机，则无法使用整个文件系统。也没有文件系统浏览器控件（出于同样的原因），但是，您可以浏览用户的照片库，甚至可以使用UIImagePickerController与相机拍照。文档：http://developer.apple.com/library/ios/#documentation/uikit/reference/UIImagePickerController_Class/UIImagePickerController/UIImagePickerController.html

如何从iPhone图片库浏览图片？

2 个答案: