可以通过两种方法添加，info.plist添加方式，和通过代码[UIApplication sharedApplication].shortcutItems添加。两种方式一起添加会合并菜单，默认只能显示4+（1）个菜单项。

1. info.plist 菜单添加方法

不灵活，如果多语言，这里无法实现支持

<key>UIApplicationShortcutItems</key>
    <array>
        <dict>
            <key>UIApplicationShortcutItemIconType</key>          
            <string>UIApplicationShortcutIconTypeShare</string>    
            <key>UIApplicationShortcutItemTitle</key>             
            <string>分享</string>                                
            <key>UIApplicationShortcutItemType</key>
            <string>share</string>                                 
        </dict>
        <dict>
            <key>UIApplicationShortcutItemIconType</key>
            <string>UIApplicationShortcutIconTypeAdd</string>
            <key>UIApplicationShortcutItemTitle</key>
            <string>添加</string>
            <key>UIApplicationShortcutItemType</key>
            <string>add</string>
        </dict>
    </array>

2. 通过代码创建

NSMutableArray* arr_items = [NSMutableArray arrayWithCapacity:3];
UIApplicationShortcutIcon *item_ico;
UIMutableApplicationShortcutItem *item;

item_ico = [UIApplicationShortcutIcon iconWithType:UIApplicationShortcutIconTypeCaptureVideo];
item = [[UIMutableApplicationShortcutItem alloc]initWithType:Shortcut_Album localizedTitle:LANGLOC(@"title_album") localizedSubtitle:nil icon:item_ico userInfo:nil];
[arr_items addObject:item];

item_ico = [UIApplicationShortcutIcon iconWithType:UIApplicationShortcutIconTypeShare];
item = [[UIMutableApplicationShortcutItem alloc]initWithType:Shortcut_Share localizedTitle:LANGLOC(@"title_share") localizedSubtitle:nil icon:item_ico userInfo:nil];
[arr_items addObject:item];

[UIApplication sharedApplication].shortcutItems = [[arr_items reverseObjectEnumerator]allObjects];

图标展示

typedef NS_ENUM(NSInteger, UIApplicationShortcutIconType) {

    UIApplicationShortcutIconTypeCompose,
    UIApplicationShortcutIconTypePlay,
    UIApplicationShortcutIconTypePause,
    UIApplicationShortcutIconTypeAdd,
    UIApplicationShortcutIconTypeLocation,
    UIApplicationShortcutIconTypeSearch,
    UIApplicationShortcutIconTypeShare,
    UIApplicationShortcutIconTypeProhibit       NS_ENUM_AVAILABLE_IOS(9_1),
    UIApplicationShortcutIconTypeContact        NS_ENUM_AVAILABLE_IOS(9_1),
    UIApplicationShortcutIconTypeHome           NS_ENUM_AVAILABLE_IOS(9_1),
    UIApplicationShortcutIconTypeMarkLocation   NS_ENUM_AVAILABLE_IOS(9_1),
    UIApplicationShortcutIconTypeFavorite       NS_ENUM_AVAILABLE_IOS(9_1),
    UIApplicationShortcutIconTypeLove           NS_ENUM_AVAILABLE_IOS(9_1),
    UIApplicationShortcutIconTypeCloud          NS_ENUM_AVAILABLE_IOS(9_1),
    UIApplicationShortcutIconTypeInvitation     NS_ENUM_AVAILABLE_IOS(9_1),
    UIApplicationShortcutIconTypeConfirmation   NS_ENUM_AVAILABLE_IOS(9_1),
    UIApplicationShortcutIconTypeMail           NS_ENUM_AVAILABLE_IOS(9_1),
    UIApplicationShortcutIconTypeMessage        NS_ENUM_AVAILABLE_IOS(9_1),
    UIApplicationShortcutIconTypeDate           NS_ENUM_AVAILABLE_IOS(9_1),
    UIApplicationShortcutIconTypeTime           NS_ENUM_AVAILABLE_IOS(9_1),
    UIApplicationShortcutIconTypeCapturePhoto   NS_ENUM_AVAILABLE_IOS(9_1),
    UIApplicationShortcutIconTypeCaptureVideo   NS_ENUM_AVAILABLE_IOS(9_1),
    UIApplicationShortcutIconTypeTask           NS_ENUM_AVAILABLE_IOS(9_1),
    UIApplicationShortcutIconTypeTaskCompleted  NS_ENUM_AVAILABLE_IOS(9_1),
    UIApplicationShortcutIconTypeAlarm          NS_ENUM_AVAILABLE_IOS(9_1),
    UIApplicationShortcutIconTypeBookmark       NS_ENUM_AVAILABLE_IOS(9_1),
    UIApplicationShortcutIconTypeShuffle        NS_ENUM_AVAILABLE_IOS(9_1),
    UIApplicationShortcutIconTypeAudio          NS_ENUM_AVAILABLE_IOS(9_1),
    UIApplicationShortcutIconTypeUpdate         NS_ENUM_AVAILABLE_IOS(9_1)

} NS_ENUM_AVAILABLE_IOS(9_0) __TVOS_PROHIBITED;

3. 自定义icon

item_ico = [UIApplicationShortcutIcon iconWithTemplateImageName:@"custom"];
item = [[UIMutableApplicationShortcutItem alloc]initWithType:@"Add" localizedTitle:LANGLOC(@"title_album") localizedSubtitle:nil icon:item_ico userInfo:nil];
    [arr_items addObject:item];

4. 接收判断

- (void)application:(UIApplication *)application performActionForShortcutItem:(nonnull UIApplicationShortcutItem *)shortcutItem completionHandler:(nonnull void (^)(BOOL))completionHandler {
    // 根据 shortcutItem.type 判断点击的是哪个 item
    if ([shortcutItem.type isEqualToString:@"Add"]) {
        //代码
    }
}

5. 系统自带的 ‘分享“app名称”’功能

不需要自己加入，发布到市场后就带这个功能，本地测试没有～

参考：
https://www.jianshu.com/p/9c6c17526da5
https://www.jianshu.com/p/9db27c2bc2d3
https://www.jianshu.com/p/d6c913c7973a