ios之获取图库图片

最新推荐文章于 2019-12-31 01:09:41 发布

Cinna丶

最新推荐文章于 2019-12-31 01:09:41 发布

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分类专栏： ios 文章标签： ios

本文链接：https://blog.youkuaiyun.com/u011421203/article/details/23761261

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本教程详细介绍了如何使用Objective-C编程语言通过Core Image框架遍历并展示iOS设备中所有照片的方法。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

需导入AssetsLibrary和OpenAL.framework

-(IBAction)getAllPictures:(id)sender

{

NSArray *imageArray=[[NSArray alloc] init];

NSMutableArray *arr =[[NSMutableArray alloc]init];

ALAssetsLibrary *library = [[ALAssetsLibrary alloc] init];

[library enumerateGroupsWithTypes:ALAssetsGroupAll usingBlock:^(ALAssetsGroup *group, BOOL *stop) {//获取所有group
if(group)
{
count = group.numberOfAssets;
}
[group enumerateAssetsUsingBlock:^(ALAsset *result, NSUInteger index, BOOL *stop) {//从group里面
NSString* assetType = [result valueForProperty:ALAssetPropertyType];

if ([assetType isEqualToString:ALAssetTypePhoto]) //获取类型是photo的

{

NSURL *url= (NSURL*) [[result defaultRepresentation]url];
[library assetForURL:url resultBlock:^(ALAsset *asset) {

[arr addObject:[UIImage imageWithCGImage:[[asset defaultRepresentation] fullScreenImage]]];
if(arr.count == count)
{
imageArray=[[NSArray alloc] initWithArray:arr];
[self allPhotosCollected:imageArray];
}

} failureBlock:^(NSError *error){
NSLog(@"operation was not successfull!");
}];
}
}];
} failureBlock:^(NSError *error) {
NSLog(@"Enumerate the asset groups failed.");
}];

}

-(void)allPhotosCollected:(NSArray*)imgArray
{
NSLog(@"all pictures are %@",imgArray);
}