ios9 如何集成ios9 里面的3D Touch

1.前言　　

随着6S的到来，3DTouch被各大热门APP迅速普及，博主亲自体验后，发现使用便捷性大幅提高，随后自己照着文档，写了个Demo出来，分享给大家，希望能对有需要的朋友提供有一些帮助。

2.如何使用3D Touch？　　

2.1.主界面重按APP图标，弹出Touch菜单　　

在

AppleDelegate

文件中的程序入口处配置：

didFinishLaunchingWithOptions

//给App图标添加3D Touch菜单

//拍照
//菜单图标
UIApplicationShortcutIcon *iconCamera = [UIApplicationShortcutIcon iconWithType:UIApplicationShortcutIconTypeAdd];
//菜单文字
UIMutableApplicationShortcutItem *itemCamera = [[UIMutableApplicationShortcutItem alloc] initWithType:@'1' localizedTitle:@'拍照'];
//绑定信息到指定菜单
itemCamera.icon = iconCamera;

//相册
//菜单图标
UIApplicationShortcutIcon *iconPhotoLibrary = [UIApplicationShortcutIcon iconWithType:UIApplicationShortcutIconTypeSearch];
//菜单文字
UIMutableApplicationShortcutItem *itemPhotoLibrary = [[UIMutableApplicationShortcutItem alloc] initWithType:@'2' localizedTitle:@'相册'];
//绑定信息到指定菜单
itemPhotoLibrary.icon = iconPhotoLibrary;
//绑定到App icon
application.shortcutItems = @[itemCamera,itemPhotoLibrary];

弹出菜单，我们需要让用户点击后跳转指定页面

这里我们会用到AppDelegate里新增加的一个方法

- (void)application:(UIApplication *)application performActionForShortcutItem:(nonnull UIApplicationShortcutItem *)shortcutItem completionHandler:(nonnull void (^)(BOOL))completionHandler;

让后我们需要在这个方法里做跳转的操作

//照相type

if ([shortcutItem.type isEqualToString:@'1']) {

UIImagePickerController *picker = [[UIImagePickerController alloc] init];//初始化

picker.allowsEditing = YES;//设置可编辑

picker.sourceType = UIImagePickerControllerSourceTypeCamera;

[self.window.rootViewController presentViewController:picker animated:YES completion:nil];//进入照相界面

}

//相册type

if ([shortcutItem.type isEqualToString:@'2']) {

UIImagePickerController *picker = [[UIImagePickerController alloc] init];//初始化
picker.allowsEditing = YES;//设置可编辑

picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;

[self.window.rootViewController presentViewController:picker animated:YES completion:nil];//进入图片库

点击后分别会进入相机和相册

2.2. 3DTouch轻按预览功能，预览时底部菜单的添加　　

首先我们要把轻按预览和长按手势区分开来，这里要在初始化时做一个基本的检测。

nterface ViewController () <UIViewControllerPreviewingDelegate>

{

UILongPressGestureRecognizer *_longPress;

}

@end

@implementation ViewController

- (void)viewDidLoad {

[super viewDidLoad];

UILongPressGestureRecognizer *longPressGr = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(longPressToDo)];

_longPress = longPressGr;

}

//检测页面是否处于3DTouch

- (void)check3DTouch{

if (self.traitCollection.forceTouchCapability == UIForceTouchCapabilityAvailable) {

[self registerForPreviewingWithDelegate:self sourceView:self.view];

NSLog(@'3D Touch 开启');

//长按停止

_longPress.enabled = NO;

}else{

_longPress.enabled = YES;

}

}

- (void)viewWillAppear:(BOOL)animated{

[self check3DTouch];

}

然后我们需要实现 UIViewControllerPreviewingDelegate的协议

@interface ViewController () <UIViewControllerPreviewingDelegate>

//然后实现代理方法
- (UIViewController *)previewingContext:(id<UIViewControllerPreviewing>)previewingContext viewControllerForLocation:(CGPoint)location;

#pragma mark >> 3D touch 代理方法

//轻按进入浮动预览页面

- (UIViewController *)previewingContext:(id<UIViewControllerPreviewing>)previewingContext viewControllerForLocation:(CGPoint)location{

//注意这里我因为测试，没做具体的位置处理，如果需要定位到具体的图片Cell位置的话，可以用location通过tableView的convertPoint来取到指定Cell

<a href="http://www.it165.net/pro/webasp/" target="_blank" class="keylink">ASP</a>reviewViewController *vc = [[<a href="http://www.it165.net/pro/webasp/" target="_blank" class="keylink">ASP</a>reviewViewController alloc] init];

vc.view.frame = self.view.frame;

UIImageView *er = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@'123.png']];

vc.view = er;

return vc;

}

完成后可以实现基本的预览效果:





最后我们加上一个

预览时下滑底部菜单的添加

在我们刚刚创建的预览控制器ASPreviewViewController里实现 UIViewControllerPreviewingDelegate的协议

然后重写它的代理方法

- (NSArray<id<UIPreviewActionItem>> *)previewActionItems;

//预览页面 底部Action Items

- (NSArray<id<UIPreviewActionItem>> *)previewActionItems{

UIPreviewAction *p1 =[UIPreviewAction actionWithTitle:@'分享' style:UIPreviewActionStyleDefault handler:^(UIPreviewAction * _Nonnull action, UIViewController * _Nonnull previewViewController) {

NSLog(@'点击了分享');

}];

UIPreviewAction *p2 =[UIPreviewAction actionWithTitle:@'收藏' style:UIPreviewActionStyleDefault handler:^(UIPreviewAction * _Nonnull action, UIViewController * _Nonnull previewViewController) {

NSLog(@'点击了收藏');

}];

NSArray *actions = @[p1,p2];

return actions;

}