尝试在我的应用程序中将图像附加到邮件

Question

我正在使用 UIimagepicker 选择应附加到我的 ios 应用程序中的邮件的图像。我收到此错误：

警告：在演示过程中尝试在 <0xb642520><0xc142ab0>

Answer 1

问题是您在图像选择器被关闭时呈现邮件编写器。使用completion 参数：

[self dismissViewControllerAnimated:YES completion:^{
    MFMailComposeViewController * mailComposer = [[MFMailComposeViewController alloc]init];
    mailComposer.mailComposeDelegate = self;
    // make sure you can make NSData from the object
    [mailComposer addAttachmentData:UIImageJPEGRepresentation(imageToUse, 1.0) mimeType:@"image/jpg" fileName:@"what ever you want to call the file"];
    [self presentViewController:mailComposer animated:YES completion:nil];
}];