如何将gif保存到相册？ [英] How do I save a gif to my photo album?

问题描述

我尝试使用UIImageWriteToSavedPhotosAlbum和ALAssetsLibrary将我的gif保存到相册中。但是，当我尝试通过电子邮件发送gif时，它没有动画效果。我很确定元数据在保存时会丢失。有谁知道如何保存gif元数据？

I've tried using UIImageWriteToSavedPhotosAlbum and ALAssetsLibrary to save my gif to the photo album. But when I try to email the gif it does not animate. I'm pretty sure the meta data is being lost when it gets saved. Does anyone know how I can preserve the gif meta data?

谢谢

推荐答案

相当古老的问题，但它可能对某人有所帮助！

Quite an old question, but it might help someone!

我使用此代码将GIF保存在相册中并且工作正常，通过在MailViewComposer中打开GIF进行测试和iMessage。

I use this code to save GIF in photo album and it works fine, tested by opening GIF in MailViewComposer and iMessage.

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

NSData *data = [NSData dataWithContentsOfFile:tempPath]; // Your GIF file path which you might have saved in NSDocumentDir or NSTempDir

[library writeImageDataToSavedPhotosAlbum:data metadata:nil completionBlock:^(NSURL *assetURL, NSError *error) {
    if (error) {
        NSLog(@"Error Saving GIF to Photo Album: %@", error);
    } else {
        // TODO: success handling
        NSLog(@"GIF Saved to %@", assetURL);

        success(tempPath);
    }
}];

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