将图像从文件路径加载到资产库的UIImage [英] Load an image to UIImage from a file path to the asset library
本文介绍了将图像从文件路径加载到资产库的UIImage的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
与我之前的问题相关此处。
Related to my previous question here.
我有资源库中图像的路径,例如:
I have a path to an image in the asset library , for example:
assets-library://asset/asset.JPG?id=1000000001&ext=JPG
现在,我如何将此路径中的图像加载到UIImage对象?
Now, how could I load the image from this path to a UIImage object?
以下是代码:
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];
}
推荐答案
来自我的链接上面的评论:
from the answer linked in my comment above:
-(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];
}
}
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