获取相册的所有相片代码,ObjC代码库,德仔网

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【ObjC】获取相册的所有相片

作者:茶壶 / 发布于2015/6/29/ 707


	//获取相册的所有图片
	- (void)reloadImagesFromLibrary
	{
	 self.images = [[NSMutableArray alloc] init];
	 dispatch_async(dispatch_get_main_queue(), ^{
	
	 @autoreleasepool {
	 ALAssetsLibraryAccessFailureBlock failureblock = ^(NSError *myerror){
	 NSLog(@"相册访问失败 =%@", [myerror localizedDescription]);
	 if ([myerror.localizedDescription rangeOfString:@"Global denied access"].location!=NSNotFound) {
	 NSLog(@"无法访问相册.请在'设置->定位服务'设置为打开状态.");
	 }else{
	 NSLog(@"相册访问失败.");
	 }
	 };
	
	 ALAssetsGroupEnumerationResultsBlock groupEnumerAtion = ^(ALAsset *result, NSUInteger index, BOOL *stop){
	 if (result!=NULL) {
	
	 if ([[result valueForProperty:ALAssetPropertyType] isEqualToString:ALAssetTypePhoto]) {
	
	 NSString *urlstr=[NSString stringWithFormat:@"%@",result.defaultRepresentation.url];//图片的url
	 [self.images addObject:urlstr];
	 //NSLog(@"urlStr is %@",urlstr);
	 /*result.defaultRepresentation.fullScreenImage//图片的大图
	 result.thumbnail //图片的缩略图小图
	 // NSRange range1=[urlstr rangeOfString:@"id="];
	 // NSString *resultName=[urlstr substringFromIndex:range1.location+3];
	 // resultName=[resultName stringByReplacingOccurrencesOfString:@"&ext=" withString:@"."];//格式demo:123456.png
	 */
	 }
	 }
	 };
	
	 ALAssetsLibraryGroupsEnumerationResultsBlock libraryGroupsEnumeration = ^(ALAssetsGroup* group, BOOL* stop){
	
	 if (group == nil)
	 {
	
	 }
	
	 if (group!=nil) {
	 NSString *g=[NSString stringWithFormat:@"%@",group];//获取相簿的组
	 NSLog(@"gg:%@",g);//gg:ALAssetsGroup - Name:Camera Roll, Type:Saved Photos, Assets count:71
	
	 NSString *g1=[g substringFromIndex:16 ] ;
	 NSArray *arr=[[NSArray alloc] init];
	 arr=[g1 componentsSeparatedByString:@","];
	 NSString *g2=[[arr objectAtIndex:0] substringFromIndex:5];
	 if ([g2 isEqualToString:@"Camera Roll"]) {
	 g2=@"相机胶卷";
	 }
	 NSString *groupName=g2;//组的name
	
	 [group enumerateAssetsUsingBlock:groupEnumerAtion];
	 }
	
	 };
	
	 ALAssetsLibrary* library = [[ALAssetsLibrary alloc] init];
	 [library enumerateGroupsWithTypes:ALAssetsGroupAll
	 usingBlock:libraryGroupsEnumeration
	 failureBlock:failureblock];
	 }
	
	 });
	}

	

	

	- (void)viewDidLoad
	{
	 [super viewDidLoad];
	 // Do any additional setup after loading the view from its nib.
	 images = [[NSMutableArray alloc] init];
	 [[GetImageModel defaultModel] reloadImagesFromLibrary];
	
	 UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
	 [button setFrame:CGRectMake(50, 50, 100, 30)];
	 [button setTitle:@"Get Images" forState:UIControlStateNormal];
	 [button addTarget:self action:@selector(logImages) forControlEvents:UIControlEventTouchUpInside];
	 [self.view addSubview:button];
	
	 imageView = [[UIImageView alloc] initWithFrame:CGRectMake(0, 100, self.view.frame.size.width, self.view.frame.size.height - 100)];
	 [imageView setContentMode:UIViewContentModeScaleAspectFit];
	 [self.view addSubview:imageView];
	}
	
	- (void)didReceiveMemoryWarning
	{
	 [super didReceiveMemoryWarning];
	 // Dispose of any resources that can be recreated.
	}
	
	- (void)logImages
	{
	 images = (NSMutableArray*)[[GetImageModel defaultModel] images];
	 NSLog(@"images is %@",images);
	 [self getImage:[images objectAtIndex:10]];
	}
	
	- (void)getImage:(NSString *)urlStr
	{
	 ALAssetsLibrary *assetLibrary=[[ALAssetsLibrary alloc] init];
	 NSURL *url=[NSURL URLWithString:urlStr];
	 [assetLibrary assetForURL:url resultBlock:^(ALAsset *asset) {
	 UIImage *image=[UIImage imageWithCGImage:asset.thumbnail];
	 imageView.image=image;
	
	 }failureBlock:^(NSError *error) {
	 NSLog(@"error=%@",error);
	 }];
	}

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　获取相册　　所有相片　

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