1.首先添加 MessageUI.framework 框架
2. 引入框架
在類的頭部
#import <MessageUI/MessageUI.h>
#import <MessageUI/MFMailComposeViewController.h>
3. 實現接口
<MFMailComposeViewControllerDelegate>
4. 當點擊一個button 跳轉到發郵件的頁面 調用我們發郵件
發郵件是有兩種方式 ：
1. 當你的設備支持的時候 the current device is configured for sending emails
我們使用一下的tool methods 中的displayComposerSheet 方法來發送郵件（其中使用了apple 集成好的 郵件picker -- MFMailComposeViewController） 在這里 我們將這個picker 看做是一個 模式視圖 ModalViewController 推出了
2. 當設備不支持的時候 我們采用
launchMailAppOnDevice 方法發送 （ 采用打開一個url地址的 方式來發） ok..
-----點擊按鈕出發的方法
- (IBAction)contactBtnPressed:(id)sender {
Class mailClass = (NSClassFromString(@"MFMailComposeViewController"));
if (mailClass != nil)
{
// We must always check whether the current device is configured for sending emails
if ([mailClass canSendMail])
{
[self displayComposerSheet];
}
else
{
[selflaunchMailAppOnDevice];
}
}
else
{
[selflaunchMailAppOnDevice];
}
}
----- tool Methods 工具方法
// 1. Launches the Mail application on the device.
-(void)launchMailAppOnDevice
{
NSString *recipients = @"mailto:maxwellsoftware@gmail.com&subject=Pocket Truth or Dare Support";
NSString *body = @"&body=email body!";
NSString *email = [NSString stringWithFormat:@"%@%@", recipients, body];
email = [email stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
[[UIApplicationsharedApplication] openURL:[NSURLURLWithString:email]];
}
// 2. Displays an email composition interface inside the application. Populates all the Mail fields.
-(void)displayComposerSheet
{
MFMailComposeViewController *picker = [[MFMailComposeViewControlleralloc] init];/*MFMailComposeViewController郵件發送選擇器*/
picker.mailComposeDelegate = self;
[picker setSubject:@"Pocket Truth or Dare Support"];/*emailpicker標題主題行*/
// Custom NavgationBar background And set the backgroup picture
picker.navigationBar.tintColor = [UIColorcolorWithRed:209.0/255green:183.0/255blue:126.0/255alpha:1.0];
// picker.navigationBar.tintColor = [UIColor colorWithRed:178.0/255 green:173.0/255 blue:170.0/255 alpha:1.0];
if ([[[UIDevicecurrentDevice] systemVersion] floatValue] >= 5.0) {
[picker.navigationBarsetBackgroundImage:[UIImageimageNamed:@"nav_bg.png"] forBarMetrics:UIBarMetricsDefault];
}
// Set up recipients
NSArray *toRecipients = [NSArrayarrayWithObject:@"maxwellsoftware@gmail.com"];
[picker setToRecipients:toRecipients];
// Fill out the email body text
struct utsname device_info;
uname(&device_info);
NSString *emailBody = [NSString
stringWithFormat:@"Model: %s\nVersion: %@\nApp: %@\nFeedback here:\n",device_info.machine,
[[UIDevicecurrentDevice] systemVersion],/*設備系統環境*/
[[[NSBundlemainBundle] infoDictionary]
objectForKey:@"CFBundleShortVersionString"]];/**/
NSLog(@"ios 應用發布后 .app 應用文件路徑::%@",[NSBundle mainBundle] );
NSLog(@"ios 應用發布后 .app 應用文件內 ::%@",[[NSBundle mainBundle] infoDictionary]);
[picker setMessageBody:emailBody isHTML:NO];
[selfpresentModalViewController:picker animated:YES];
[picker release];
}
// 3. 一個備用的方法
//- (void) alertWithTitle: (NSString *)_title_ msg: (NSString *)msg
//{
// UIAlertView *alert = [[UIAlertView alloc] initWithTitle:_title_
// message:msg
// delegate:nil
// cancelButtonTitle:@"Sure"
// otherButtonTitles:nil];
// [alert show];
// [alert release];
//}
----協議的委托方法
// Dismisses the email composition interface when users tap Cancel or Send. Proceeds to update the message field with the result of the operation.
- (void)mailComposeController:(MFMailComposeViewController*)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError*)error
{
// NSString *title = @"Mail";
// NSString *msg;
// switch (result)
// {
// case MFMailComposeResultCancelled:
// msg = @"Mail canceled";//@"郵件發送取消";
// break;
// case MFMailComposeResultSaved:
// msg = @"Mail saved";//@"郵件保存成功";
// [self alertWithTitle:title msg:msg];
// break;
// case MFMailComposeResultSent:
// msg = @"Mail sent";//@"郵件發送成功";
// [self alertWithTitle:title msg:msg];
// break;
// case MFMailComposeResultFailed:
// msg = @"Mail failed";//@"郵件發送失敗";
// [self alertWithTitle:title msg:msg];
// break;
// default:
// msg = @"Mail not sent";
// [self alertWithTitle:title msg:msg];
// break;
// }
[self dismissModalViewControllerAnimated:YES];
}