ios 将图像从资源库的文件路径加载到 UIImage
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Load an image to UIImage from a file path to the asset library
提问by Ali
Related to my previous question here.
涉及到我刚才的问题在这里。
I have a path to an image in the asset library , for example:
我在资产库中有一个图像的路径，例如：
assets-library://asset/asset.JPG?id=1000000001&ext=JPG
Now, how could I load the image from this path to a UIImage object?
现在，如何将图像从此路径加载到 UIImage 对象？
Here is the code:
这是代码：
NSString *path = [occasion imagePath];
//temp
NSLog(@"the 2nd occasion imagePath is: %@", path);
//end
if (path != nil)
{
//UIImage *image = [UIImage imageNamed:path];
UIImage *image = [UIImage imageWithContentsOfFile:path];
image = [image imageByScalingAndCroppingForSize:CGSizeMake(36.0, 42.0)];
[[cell imageView] setImage:image];
}
采纳答案by Ali
from the answer linked in my comment above:
来自我上面评论中链接的答案：
-(void)findLargeImage
{
NSString *mediaurl = [self.node valueForKey:kVMMediaURL];
//
ALAssetsLibraryAssetForURLResultBlock resultblock = ^(ALAsset *myasset)
{
ALAssetRepresentation *rep = [myasset defaultRepresentation];
CGImageRef iref = [rep fullResolutionImage];
if (iref) {
largeimage = [UIImage imageWithCGImage:iref];
[largeimage retain];
}
};
//
ALAssetsLibraryAccessFailureBlock failureblock = ^(NSError *myerror)
{
NSLog(@"booya, cant get image - %@",[myerror localizedDescription]);
};
if(mediaurl && [mediaurl length] && ![[mediaurl pathExtension] isEqualToString:AUDIO_EXTENSION])
{
[largeimage release];
NSURL *asseturl = [NSURL URLWithString:mediaurl];
ALAssetsLibrary* assetslibrary = [[[ALAssetsLibrary alloc] init] autorelease];
[assetslibrary assetForURL:asseturl
resultBlock:resultblock
failureBlock:failureblock];
}
}
回答by Randall
Try the following:
(UIImage *)imageWithContentsOfFile:(NSString *)path
请尝试以下操作：
(UIImage *)imageWithContentsOfFile:(NSString *)path
回答by giapnh
You also can use [myasset aspectRatioThumbnail]to get your image.
您也可以使用[myasset aspectRatioThumbnail]来获取您的图像。
