如何调用本地图像文件并显示到imageviewcontroller中 [英] How to call the local image file and display into the imageviewcontroller

问题描述

我创建了一个应用程序，该应用程序创建了本地存储的付款文件，而该应用程序未被删除.

I create the one application in that create the locally store the file in payment while the application not be deleted.

我已经完成:下载文件并将其存储在本地(应用程序文档"文件夹).

This I have done: I download the file and store into locally (applications document folder).

现在我遇到了麻烦: 在下载映像之后，然后我将其提取到本地，并且该映像将不会显示.在NSLog中，生成了以下URL，但我无法显示图像.

Now I am having trouble with this: While the after the image is downloaded then I fetch into locally and that image will not display. In NSLog following url is generated and i can't display the image.

/Users/username/Library/Application%20Support/iPhone%20Simulator/5.0/Applications/F233ED88-1546-4FB0-BE93-0E0FB8C8C3D6/Documents/NationalMedalofArts-150x150.jpg

/Users/username/Library/Application%20Support/iPhone%20Simulator/5.0/Applications/F233ED88-1546-4FB0-BE93-0E0FB8C8C3D6/Documents/NationalMedalofArts-150x150.jpg

NSURL *imageURL = [NSURL URLWithString:[NSString stringWithFormat:@"%@",
                   @"/Users/username/Library/Application Support/iPhone Simulator/5.0/Applications/F233ED88-1546-4FB0-BE93-0E0FB8C8C3D6/Documents/NationalMedalofArts-150x150.jpg"]];
NSData *imageData = [NSData dataWithContentsOfURL:imageURL];
NSLog(@"%@",imageData);
UIImage *image = [UIImage imageWithData:imageData];
self.imgView.image = image;

当NSLog记录NSData时，显示为NULL

when the NSLog the NSData then it's NULL to display

推荐答案

这更好:

NSString *fileName = @"NationalMedalofArts-150x150.jpg";
NSString *path = [NSString stringWithFormat:@"%@/Documents/%@", NSHomeDirectory(), fileName];
self.imgView.image = [UIImage imageWithContentsOfFile:path];

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