iOS 把图片保存到相册，并获取图片文件名

最新推荐文章于 2020-12-25 11:29:24 发布

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最新推荐文章于 2020-12-25 11:29:24 发布

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分类专栏： iOS －设备控件 iOS －图片、动画文章标签： iOS 把图片保存到相册相册拍照相机拍照保存图片到相册

本文链接：https://blog.youkuaiyun.com/sevenquan/article/details/59094983

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本文介绍了一种在iOS应用中将图片保存到用户相册的方法，并提供了两种实现方案：一种使用系统的UIImageWriteToSavedPhotosAlbum方法，另一种通过ALAssetsLibrary进行更深入的交互并获取保存图片的文件名。

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- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {

UIImage *image = [info objectForKey:UIImagePickerControllerOriginalImage];

if (picker.sourceType == UIImagePickerControllerSourceTypeCamera) {

UIImageWriteToSavedPhotosAlbum(image,self,@selector(image:didFinishSavingWithError:contextInfo:),NULL);

}

- (void)image:(UIImage*)image didFinishSavingWithError:(NSError*)error contextInfo:(void*)contextInfo

{

if (error) {

DLog(@"图片保存失败！");

}else{

DLog(@"图片保存成功！");

}

此方法可以把其他来源的图片也可保存到相册

//当image从相机中获取的时候存入相册中

//保存方法1

// UIImageWriteToSavedPhotosAlbum(img.image,self,@selector(image:didFinishSavingWithError:contextInfo:),NULL);

// imageData = nil;

WEAKSELF

//保存方法2同时获取保存的相片文件名

__blockALAssetsLibrary *lib = [[ALAssetsLibraryalloc] init];

[lib writeImageToSavedPhotosAlbum:img.image.CGImagemetadata:nilcompletionBlock:^(NSURL *assetURL,NSError *error) {

ALAssetsLibraryAssetForURLResultBlock resultblock = ^(ALAsset *imageAsset)

{

ALAssetRepresentation *imageRep = [imageAssetdefaultRepresentation];

weakSelf.imageName = [NSStringstringWithFormat:@"%@",[imageRepfilename]];

NSLog(@"[imageRep filename 1] : %@", [imageRepfilename]);

DBLog(@"self.addressImageName照相0 = %@",weakSelf.imageName);

commitBlock(img.image,UIImageJPEGRepresentation(img.image,0.5),self.imageName);

};

ALAssetsLibrary* assetslibrary = [[ALAssetsLibraryalloc] init];

[assetslibrary assetForURL:assetURLresultBlock:resultblock failureBlock:nil];

NSLog(@"assetURL = %@, error = %@", assetURL, error);

lib = nil;

}];