如何使用UIActivityViewController电子邮件共享设置电子邮件附件文件名

Question

我正在尝试使用UIAcitivityViewController电子邮件共享来共享相机胶卷图像.

以下是我的代码.

 ALAssetRepresentation *rep = [asset defaultRepresentation];
    CGImageRef iref = [rep fullScreenImage];
    UIImage *largeimage = [UIImage imageWithCGImage:iref scale:[rep scale] orientation:UIImageOrientationUp];
    NSData *imageData = UIImageJPEGRepresentation(largeimage, 1.0);
    NSArray *activityItems;

    if (largeimage != nil) {
        activityItems = @[imageData];
    }

    UIActivityViewController *activityController = [[UIActivityViewController alloc] initWithActivityItems:activityItems applicationActivities:nil];
    [self presentViewController:activityController animated:YES completion:nil];

我不知道如何设置附件图像文件名.有什么建议？

Answer 1

尝试在本地保存图像,然后发送文件网址,它肯定会显示您的图像名称.

ALAssetRepresentation *rep = [asset defaultRepresentation];
CGImageRef iref = [rep fullScreenImage];
UIImage *largeimage = [UIImage imageWithCGImage:iref scale:[rep scale] orientation:UIImageOrientationUp];
NSData *imageData = UIImageJPEGRepresentation(largeimage, 1.0);
// Store imageData locally
NSString* documentsPath = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0];
NSString* filePath = [documentsPath stringByAppendingPathComponent:"@abc.jpg"];
[imageData writeToFile:filePath atomically:YES];
NSURL *fileUrl = [NSURL fileURLWithPath:filePath];

UIActivityViewController* activityViewController = [[UIActivityViewController alloc] initWithActivityItems:@[fileUrl]
                                          applicationActivities:nil];
[self.navigationController presentViewController:activityViewController animated:YES completion:^{}];

Answer 2

尝试这个...

NSString *text = @"write text here";
UIImage *image = [UIImage imageNamed:@"your image name"];
NSArray *activityItems = [NSArray arrayWithObjects:text,image , nil];
UIActivityViewController *activityController = [[UIActivityViewController alloc] initWithActivityItems: activityItems applicationActivities:nil];
[self presentViewController:activityController animated:YES completion:nil];