UIActivityViewController

在使用了QQ、微信等的原生與第三方分享SDK之后,我更喜歡iOS自帶分享框架UIActivityViewController，UIActivityViewController繼承自UIViewController，簡直不能更加便捷簡單了，也不用去申請QQ、微信（每年￥300）等的key與id了，好了下面就來看UIActivityViewController的基本用法，自定義有空再寫。一定要記得判斷iPad環境，不然在iPad上直接present要crash，且crash原因會是UIPopoverPresentationController (<_UIAlertControllerActionSheetRegularPresentationController: 0x7fce54d70b50>) should have a non-nil sourceView or barButtonItem set before the presentation occurs.這就需要你判斷為iPad環境時需要pop，加上popoverPresentationController.sourceView就好了。

NSString *textToShare = @"我就是喜歡踩坑呢，咋的了。生活不止眼前的茍且，還有翔和未來的茍且。";
UIImage *imageShare = [UIImage imageNamed:@"這兒放你自己的圖片"];
NSURL *urlShare = [NSURL URLWithString:@"http://www.lxweimin.com/u/9ab932a98604"];
NSArray *activityItems = @[textShare, imageShare, urlShare];
UIActivityViewController *actVC = [[UIActivityViewController alloc] initWithActivityItems:activityItems applicationActivities:nil];
//下面的excludedActivityTypes填寫你需要剔除的（比如打印UIActivityTypePrint，短信UIActivityTypeMessage）,不寫excludedActivityTypes這一行即使用系統默認的，好了，我們來看一下excludedActivityTypes的所有值。

UIKIT_EXTERN NSString *const UIActivityTypePostToFacebook     NS_AVAILABLE_IOS(6_0) __TVOS_PROHIBITED;    //發送到Facebook   
UIKIT_EXTERN NSString *const UIActivityTypePostToTwitter      NS_AVAILABLE_IOS(6_0) __TVOS_PROHIBITED;    //發送到Twitter
UIKIT_EXTERN NSString *const UIActivityTypePostToWeibo        NS_AVAILABLE_IOS(6_0) __TVOS_PROHIBITED;    //發送到新浪微博
UIKIT_EXTERN NSString *const UIActivityTypeMessage            NS_AVAILABLE_IOS(6_0) __TVOS_PROHIBITED;    //短信
UIKIT_EXTERN NSString *const UIActivityTypeMail               NS_AVAILABLE_IOS(6_0) __TVOS_PROHIBITED;    //郵件
UIKIT_EXTERN NSString *const UIActivityTypePrint              NS_AVAILABLE_IOS(6_0) __TVOS_PROHIBITED;    //打印
UIKIT_EXTERN NSString *const UIActivityTypeCopyToPasteboard   NS_AVAILABLE_IOS(6_0) __TVOS_PROHIBITED;    //拷貝
UIKIT_EXTERN NSString *const UIActivityTypeAssignToContact    NS_AVAILABLE_IOS(6_0) __TVOS_PROHIBITED;    //指定給聯系人
UIKIT_EXTERN NSString *const UIActivityTypeSaveToCameraRoll   NS_AVAILABLE_IOS(6_0) __TVOS_PROHIBITED;    //保存至相機膠卷
UIKIT_EXTERN NSString *const UIActivityTypeAddToReadingList   NS_AVAILABLE_IOS(7_0) __TVOS_PROHIBITED;    //添加至閱讀列表
UIKIT_EXTERN NSString *const UIActivityTypePostToFlickr       NS_AVAILABLE_IOS(7_0) __TVOS_PROHIBITED;    //發送到Flickr(雅虎旗下圖片分享網站)
UIKIT_EXTERN NSString *const UIActivityTypePostToVimeo        NS_AVAILABLE_IOS(7_0) __TVOS_PROHIBITED;    //發送到Vimeo
UIKIT_EXTERN NSString *const UIActivityTypePostToTencentWeibo NS_AVAILABLE_IOS(7_0) __TVOS_PROHIBITED;    //發送到騰訊微博
UIKIT_EXTERN NSString *const UIActivityTypeAirDrop            NS_AVAILABLE_IOS(7_0) __TVOS_PROHIBITED;    //AirDrop
UIKIT_EXTERN NSString *const UIActivityTypeOpenInIBooks       NS_AVAILABLE_IOS(9_0) __TVOS_PROHIBITED;    //在iBooks中打開

actVC.excludedActivityTypes = @[UIActivityTypeMessage,UIActivityTypePrint,UIActivityTypeSaveToCameraRoll,UIActivityTypeAddToReadingList,UIActivityTypePostToFlickr,UIActivityTypePostToVimeo,UIActivityTypeAirDrop];
//這兒一定要做iPhone與iPad的判斷，因為這兒只有iPhone可以present，iPad需pop，所以這兒actVC.popoverPresentationController.sourceView = self.view;在iPad下必須有，不然iPad會crash，self.view你可以換成任何view，你可以理解為彈出的窗需要找個依托。
if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) {
    actVC.popoverPresentationController.sourceView = self.view;
    [self presentViewController:actVC animated:YES completion:nil];
} else {
    [self presentViewController:actVC animated:YES completion:nil];
}