我需要一个称为电子邮件按钮的按钮来从选择器视图中从多个项目中进行一项选择，以通过电子邮件附加该选定项目。我被困在 IBAction 上。这是我的进步。
文件：
-(void)pickerViewEmail:(UIPickerView *)pickerViewEmail didSelectRow:(NSInteger)row inComponent:(NSInteger)component
{
if ([[musicList objectAtIndex:row] isEqual:@"m1"])
{
MFMailComposeViewController *pickerEmail = [[MFMailComposeViewController alloc] init];
pickerEmail.mailComposeDelegate = self;
NSString *path = [[NSBundle mainBundle] pathForResource:@"m1" ofType:@"mp3"];
NSData *myData = [NSData dataWithContentsOfFile:path];
[pickerEmail addAttachmentData:myData mimeType:@"audio/mp3" fileName:@"m1"];
[pickerEmail setSubject:@"Hello!"];
// Set up recipients
NSArray *toRecipients = [NSArray arrayWithObject:@"first@example.com"];
NSArray *ccRecipients = [NSArray arrayWithObjects:@"second@example.com", @"third@example.com", nil];
NSArray *bccRecipients = [NSArray arrayWithObject:@"fourth@example.com"];
[pickerEmail setToRecipients:toRecipients];
[pickerEmail setCcRecipients:ccRecipients];
[pickerEmail setBccRecipients:bccRecipients];
// Fill out the email body text
NSString *emailBody = @"Hello";
[pickerEmail setMessageBody:emailBody isHTML:NO];
[self presentModalViewController:pickerEmail animated:YES];
[pickerEmail release];
}
if ([[musicList objectAtIndex:row] isEqual:@"m2"])
{
}
if ([[musicList objectAtIndex:row] isEqual:@"m3"])
{
}
IBA 动作：
-(IBAction)showEmail
{
if ([MFMailComposeViewController canSendMail])
{
[self pickerEmail]; I have a yellow error when i call this. What is the right solution?
}
else
{
}
}