iPhone6s系列新增了一個(gè)很好玩的3DTouch,筆者稍微參照手機(jī)信息界面做了下入門(mén)的Demo.拋個(gè)磚頭~

知識(shí)點(diǎn):

• 1.AppIcon深按彈窗
  • plist
  • Appdelegate
• 2.控制器內(nèi)的Peek和Pop
• 3.UITouch新增屬性

一. AppIcon深按彈窗

• 首先,3DTouch出現(xiàn)前我們對(duì)AppIcon的印象:

  • 點(diǎn)擊打開(kāi)應(yīng)用
  • 長(zhǎng)按觸發(fā)應(yīng)用們的編輯形式

• 現(xiàn)在,在iPhone6S與6S+的機(jī)型上,我們深按它,可以獲得一個(gè)彈窗,用來(lái)快速使用我們應(yīng)用的某些功能
  圖1

• 如果該彈窗是固定不變的,你可以通過(guò)plist文件直接配置它.
  

  圖2

其中源碼如下:

<key>UIApplicationShortcutItems</key>
    <array>
        <dict>
            <key>UIApplicationShortcutItemTitle</key>
            <string>titileShare</string>
            <key>UIApplicationShortcutItemSubtitle</key>
            <string>subTitle</string>
            <key>UIApplicationShortcutItemType</key>
            <string>com.mycompany.myapp.openfavorites</string>
            <key>UIApplicationShortcutItemUserInfo</key>
            <dict>
                <key>xmgkey1</key>
                <string>yfvalue1</string>
            </dict>
            <key>UIApplicationShortcutItemIconType</key>
            <string>UIApplicationShortcutIconTypeShare</string>
        </dict>
        <dict>
            <key>UIApplicationShortcutItemTitle</key>
            <string>qq</string>
            <key>UIApplicationShortcutItemSubtitle</key>
            <string>customQQ</string>
            <key>UIApplicationShortcutItemType</key>
            <string>qqtype</string>
            <key>UIApplicationShortcutItemUserInfo</key>
            <dict>
                <key>xmgkey1</key>
                <string>xmgvalue1</string>
            </dict>
            <key>UIApplicationShortcutItemIconFile</key>
            <string>qq</string>
        </dict>
    </array>

其中常用的key有6個(gè),UIApplicationShortcutItemTitle和UIApplicationShortcutItemType是必須有的

• 而如果該彈窗是像信息應(yīng)用那樣顯示其中動(dòng)態(tài)內(nèi)容的話,我們可以通過(guò)代碼實(shí)現(xiàn)它

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    // Override point for customization after application launch.
    /**
     *
     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;
     */

    UIApplicationShortcutIcon *shortcutIcon = [UIApplicationShortcutIcon iconWithType:UIApplicationShortcutIconTypeShare];
    UIMutableApplicationShortcutItem *mAShortcutItem = [[UIMutableApplicationShortcutItem alloc] initWithType:@"type1"
                                                                                               localizedTitle:@"titile1"
                                                                                            localizedSubtitle:@"localizedSubtitle1"
                                                                                                         icon:shortcutIcon
                                                                                                     userInfo:@{@"userInfo": @"info11"}];
    UIMutableApplicationShortcutItem *mASI = [[UIMutableApplicationShortcutItem alloc] initWithType:@"type2"
                                                                                     localizedTitle:@"title2"
                                                                                  localizedSubtitle:@"localizedSubtitle2"
                                                                                               icon:[UIApplicationShortcutIcon iconWithType:UIApplicationShortcutIconTypeCompose]
                                                                                           userInfo:@{@"icon":@"compose"}];

    // 添加3DTouch元素
    application.shortcutItems =  @[mAShortcutItem, mASI];

    return YES;
}

• 點(diǎn)擊屏幕主頁(yè)這些彈窗的選項(xiàng),會(huì)觸發(fā)AppDelegate代理方法

swift:
    optional func application(_ application: UIApplication,
performActionForShortcutItem shortcutItem: UIApplicationShortcutItem,
           completionHandler completionHandler: (Bool) -> Void)
OBJECTIVE-C:
- (void)application:(UIApplication *)application
performActionForShortcutItem:(UIApplicationShortcutItem *)shortcutItem
  completionHandler:(void (^)(BOOL succeeded))completionHandler

  // 以動(dòng)態(tài)OC代碼為例

- (void)application:(UIApplication *)application performActionForShortcutItem:(UIApplicationShortcutItem *)shortcutItem completionHandler:(void (^)(BOOL))completionHandler
{
    NSString *tpye = shortcutItem.type;
    if ([tpye isEqualToString:@"type1"]) { // 分享
        // 處理相關(guān)邏輯
        NSLog(@"跳頁(yè)去分享吧");
        UIViewController *vc = application.keyWindow.rootViewController;

        completionHandler(YES);
    }else if ([tpye isEqualToString:@"type2"]) // 編輯
    {
        NSLog(@"編輯");
        completionHandler(YES);
    }else
    {
        NSLog(@"未知");
        completionHandler(NO);
    }
}

二. 控制器內(nèi)的Peek和Pop

• 現(xiàn)在在點(diǎn)擊某控制器,也可以使用3DTouch相關(guān)技術(shù)了

  
  
  圖3

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    YFHeroCell *cell = [tableView dequeueReusableCellWithIdentifier:@"heroCell"];
    if (!cell) {
        cell = [[YFHeroCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:@"heroCell"];

        // 判斷控制器是否支持3DTouch
        if (self.traitCollection.forceTouchCapability == UIForceTouchCapabilityAvailable) {
            // 注冊(cè)支持3DTouch的視圖:cell,并設(shè)置代理
            // @interface ViewController () <UIViewControllerPreviewingDelegate>
            [self registerForPreviewingWithDelegate:self sourceView:cell];
        }
    }


    YFHero *hero = [self.groups[indexPath.section] heros][indexPath.row];
    cell.hero = hero;


    return cell;
}

• 之后實(shí)現(xiàn)代理方法

  
  
  圖5

#pragma mark - UIViewControllerPreviewingDelegate

// 該方法是觸發(fā)的是輕按,中度按壓時(shí)候的場(chǎng)景
- (UIViewController *)previewingContext:(id<UIViewControllerPreviewing>)previewingContext viewControllerForLocation:(CGPoint)location
{
    NSLog(@"%s, line = %d, pre = %@, location = %@", __FUNCTION__, __LINE__, previewingContext, NSStringFromCGPoint(location));

    // 拿到sourceView,強(qiáng)轉(zhuǎn)成它原本的類型
    YFHeroCell *cell = (YFHeroCell *)[previewingContext sourceView];
    // 設(shè)置預(yù)覽視圖的位置為原來(lái)的它自己的位置
    [previewingContext setSourceRect:cell.bounds];


    // 創(chuàng)建出現(xiàn)的視圖
    YFDetailController *vc = [[YFDetailController alloc] init];
    vc.preferredContentSize = CGSizeMake(0, 200); // 只能設(shè)置高度,寬度是固定的
    vc.view.backgroundColor = [UIColor greenColor];

    // 設(shè)置控制器內(nèi)的信息
    vc.hero = cell.hero;

    return vc;
}

// 彈窗出現(xiàn)后,再繼續(xù)用力會(huì)進(jìn)行的業(yè)務(wù)邏輯(modal出整個(gè)控制器來(lái))
- (void)previewingContext:(id<UIViewControllerPreviewing>)previewingContext commitViewController:(YFDetailController *)viewControllerToCommit
{

    NSLog(@"%s, line = %d, previewingContext = %@, viewControllerToCommit = %@", __FUNCTION__, __LINE__, previewingContext, viewControllerToCommit);
    viewControllerToCommit.showedBackBtn = YES;

    [self presentViewController:viewControllerToCommit animated:YES completion:nil];
    //[self showViewController:viewControllerToCommit sender:[previewingContext sourceView]];
}

• 彈窗出現(xiàn)后,向上滑動(dòng),會(huì)出現(xiàn)類似于actionSheet的控件

  
  
  圖6
  圖7

在detailVc的實(shí)現(xiàn)文件中

// 懶加載創(chuàng)建需要用到的數(shù)組
- (NSArray *)preActions
{
    if (!_preActions) {

        UIPreviewAction *action0 = [UIPreviewAction actionWithTitle:@"action0" style:UIPreviewActionStyleDefault handler:^(UIPreviewAction * _Nonnull action, UIViewController * _Nonnull previewViewController) {
            NSLog(@"%s, line = %d, action0 = %@, previewViewController = %@", __FUNCTION__, __LINE__, action, previewViewController);

        }];

        UIPreviewAction *action1 = [UIPreviewAction actionWithTitle:@"action1" style:UIPreviewActionStyleDestructive handler:^(UIPreviewAction * _Nonnull action, UIViewController * _Nonnull previewViewController) {
            NSLog(@"%s, line = %d, action1 = %@, previewViewController = %@", __FUNCTION__, __LINE__, action, previewViewController);
        }];

        UIPreviewAction *action2 = [UIPreviewAction actionWithTitle:@"action2" style:UIPreviewActionStyleSelected handler:^(UIPreviewAction * _Nonnull action, UIViewController * _Nonnull previewViewController) {
            NSLog(@"%s, line = %d, action2 = %@, previewViewController = %@", __FUNCTION__, __LINE__, action, previewViewController);
        }];
        UIPreviewAction *action3 = [UIPreviewAction actionWithTitle:@"action3" style:UIPreviewActionStyleSelected handler:^(UIPreviewAction * _Nonnull action, UIViewController * _Nonnull previewViewController) {
            NSLog(@"%s, line = %d, action2 = %@, previewViewController = %@", __FUNCTION__, __LINE__, action, previewViewController);
        }];


        UIPreviewActionGroup *actionGroup = [UIPreviewActionGroup actionGroupWithTitle:@"actionGroup" style:UIPreviewActionStyleSelected actions:@[action2, action3]];

        _preActions = @[action0, action1, actionGroup];
    }
    return _preActions;
}


// 設(shè)置控制器在彈窗時(shí)候,下面輸出的數(shù)組
- (NSArray<id<UIPreviewActionItem>> *)previewActionItems
{
    return self.preActions;
}

• webView只需要添加屬性

#warning 核心代碼
    webView.allowsLinkPreview = YES;

三. UITouch

• 新增屬性force,maximumPossibleForce

// 在控制器中打印,查看其變化
- (void)touchesMoved:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event
{
    UITouch *touch = touches.anyObject;

    NSLog(@"%s, line = %d, force = %.f,maximumPossibleForce = %.f", __FUNCTION__, __LINE__, touch.force, touch.maximumPossibleForce);
}

• 可塑性很強(qiáng)大,近期決定按照系統(tǒng)做法封裝一個(gè)3DTouch的第三方