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IOS 3DTouch技术使用

2017-12-28  本文已影响420人  _既白_

IOS 3DTouch技术使用

简介

3D Touch是一种立体触控技术,被苹果称为新一代多点触控技术,是在Apple Watch上采用的Force Touch,屏幕可感应不同的感压力度触控。3D Touch,苹果iPhone 6s的新功能。有PeekPop两种新手势。3D-Touch技术,相对于多点触摸在平面二维空间的操作,3D-Touch技术增加了对力度和手指面积的感知,可以通过长按快速预览/查看你想要的短信/图片/超链接等内容,PeekPop手势的响应时间可迅捷到10ms15ms

应用外3DTouch

介绍

应用外3DTouch技术是指应用处于桌面ICON快捷菜单,这种设计极大的提高应用使用的便捷性,更加快速定位到常用功能的使用。样式如下图:


Wechat JD

创建方式

Info.plist方式实现3DTouch技术

UIApplicationShortcutItems:数组中的元素就是我们的那些快捷选项标签。
UIApplicationShortcutItemTitle:标签标题(必填)
UIApplicationShortcutItemType:标签的唯一标识 (必填)
UIApplicationShortcutItemIconType:使用系统图标的类型,如搜索、定位、home等(可选)
UIApplicationShortcutItemIcon File:使用项目中的图片作为标签图标 (可选)
UIApplicationShortcutItemSubtitle:标签副标题 (可选)
UIApplicationShortcutItemUserInfo:字典信息,如传值使用 (可选)
Info.plist方式实现3DTouch技术 Info.plist方式实现3DTouch效果图

纯代码方式实现3DTouch技术。

// 自定义图标
UIApplicationShortcutIcon *icon1 = [UIApplicationShortcutIcon iconWithTemplateImageName:@"pic1"];

UIApplicationShortcutIcon *icon2 = [UIApplicationShortcutIcon iconWithTemplateImageName:@"pic2"];

UIApplicationShortcutIcon *icon3 = [UIApplicationShortcutIcon iconWithTemplateImageName:@"pic3"];

UIApplicationShortcutIcon *icon4 = [UIApplicationShortcutIcon iconWithTemplateImageName:@"pic4"];
    

// 创建带着有自定义图标item
UIMutableApplicationShortcutItem *item1 = [[UIMutableApplicationShortcutItem alloc]initWithType:@"pic1" localizedTitle:@"进入pic1" localizedSubtitle:@"自定义图标pic1" icon:icon1 userInfo:nil];

UIMutableApplicationShortcutItem *item2 = [[UIMutableApplicationShortcutItem alloc]initWithType:@"pic2" localizedTitle:@"进入pic2" localizedSubtitle:@"自定义图标pic2" icon:icon2 userInfo:nil];
    
UIMutableApplicationShortcutItem *item3 = [[UIMutableApplicationShortcutItem alloc]initWithType:@"pic3" localizedTitle:@"进入pic3" localizedSubtitle:@"自定义图标pic3" icon:icon3 userInfo:nil];
    
UIMutableApplicationShortcutItem *item4 = [[UIMutableApplicationShortcutItem alloc]initWithType:@"pic4" localizedTitle:@"进入pic4" localizedSubtitle:@"自定义图标pic4" icon:icon4 userInfo:nil];
    
    
[[UIApplication sharedApplication] setShortcutItems:@[item1,item2,item3,item4]];

UIMutableApplicationShortcutItem初始化方法介绍如下:


- (instancetype)initWithType:(NSString *)type 
                 localizedTitle:(NSString *)localizedTitle               
                 localizedSubtitle:(nullable NSString *)localizedSubtitle 
                 icon:(nullable UIApplicationShortcutIcon *)icon                 
                 userInfo:(nullable NSDictionary *)userInfo 
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    // Override point for customization after application launch.
    // 首先判断是否支持3DTouch
    if(self.window.traitCollection.forceTouchCapability == UIForceTouchCapabilityAvailable)
    {
        // 创建3DTouch模型
    }
    return YES;
}
- (void)application:(UIApplication *)application performActionForShortcutItem:(UIApplicationShortcutItem *)shortcutItem completionHandler:(void (^)(BOOL))completionHandler
{
    // 1.获得shortcutItem的type type就是初始化shortcutItem的时候传入的唯一标识符
    NSString *type = shortcutItem.type;

    //2.可以通过type来判断点击的是哪一个快捷按钮 并进行每个按钮相应的点击事件
    if ([type isEqualToString:@"pic1"]) {
        // do something
    }else if ([type isEqualToString:@"pic2"]){
        // do something
    }else if ([type isEqualToString:@"pic3"]){
        // do something
    }else if ([type isEqualToString:@"pic4"]){
        // do something
    } 
}
纯代码方式实现3DTouch效果图

应用内的3DTouch技术的应用

我们先控制器中在创建一个tableView,并遵守代理UIViewControllerPreviewingDelegate,再创建一个要跳转的目标控制器。代码如下:

#import "ViewController.h"
#import "HomeDetailController.h"
@interface ViewController ()<UITableViewDelegate,UITableViewDataSource,UIViewControllerPreviewingDelegate>
@property (nonatomic, strong) UITableView *tableView;
@property (strong, nonatomic) NSMutableArray *datas;

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
    self.title = @"3DTouch_text";
    
    _datas = [[NSMutableArray alloc]init];
    for (NSInteger i = 0; i < 20; i++) {
        [_datas addObject:[NSString stringWithFormat:@"cell_%li",(long)I]];
    }
    
    self.tableView.frame = self.view.bounds;
    
    [self.view addSubview:self.tableView];
    [self.tableView registerClass:[UITableViewCell class] forCellReuseIdentifier:@"myCell"];
    
}


-(UITableView *)tableView{
    if (!_tableView) {
        _tableView = [[UITableView alloc]init];
        _tableView.delegate = self;
        _tableView.dataSource = self;
    }
    return _tableView;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    return _datas.count;
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"myCell"];
    if (cell == nil) {
        cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:@"myCell"];
    }
    cell.textLabel.text = _datas[indexPath.row];
    if (self.traitCollection.forceTouchCapability == UIForceTouchCapabilityAvailable) {
        NSLog(@"3D Touch  可用!");
        //给cell注册3DTouch的peek(预览)和pop功能 ,注册(在哪个页面上使用该功能就注册在哪个页面上)
        [self registerForPreviewingWithDelegate:self sourceView:cell];
    } else {
        NSLog(@"3D Touch 无效");
    }
    return cell;
}

-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{
    HomeDetailController *vc = [[HomeDetailController alloc]init];
    
    vc.name = [NSString stringWithFormat:@"%ld",(long)indexPath.row];
    
    [self.navigationController pushViewController:vc animated:YES];
}

//2.第二步
#pragma mark - UIViewControllerPreviewingDelegate(实现代理的方法)
- (UIViewController *)previewingContext:(id<UIViewControllerPreviewing>)previewingContext viewControllerForLocation:(CGPoint)location {
    
    HomeDetailController *vc = [[HomeDetailController alloc]init];
    
    //获取按压的cell所在行,[previewingContext sourceView]就是按压的那个视图
    NSIndexPath *indexPath = [self.tableView indexPathForCell:(UITableViewCell* )[previewingContext sourceView]];
    
    //设定预览的界面
    
    vc.preferredContentSize = CGSizeMake(0.0f,500.0f);
    vc.name = [NSString stringWithFormat:@"Cell_%ld,用力按进来,或者往上推",(long)indexPath.row];
    
    //调整不被虚化的范围,按压的那个cell不被虚化(轻轻按压时周边会被虚化,再少用力展示预览,再加力跳页至设定界面)
    CGRect rect = CGRectMake(0, 0, self.view.frame.size.width,40);
    previewingContext.sourceRect = rect;
    
    return vc;
    
}

- (void)previewingContext:(id<UIViewControllerPreviewing>)previewingContext commitViewController:(UIViewController *)viewControllerToCommit {
    [self.navigationController pushViewController:viewControllerToCommit animated:YES];
    
}


@end



目标控制器中的代码实现:

- (NSArray<id<UIPreviewActionItem>> *)previewActionItems {
    // setup a list of preview actions
    UIPreviewAction *action1 = [UIPreviewAction actionWithTitle:@"关注" style:UIPreviewActionStyleDefault handler:^(UIPreviewAction * _Nonnull action, UIViewController * _Nonnull previewViewController) {
        NSLog(@"关注");
    }];
    
    UIPreviewAction *action2 = [UIPreviewAction actionWithTitle:@"收藏" style:UIPreviewActionStyleDefault handler:^(UIPreviewAction * _Nonnull action, UIViewController * _Nonnull previewViewController) {
        NSLog(@"收藏");
    }];
    
    UIPreviewAction *action3 = [UIPreviewAction actionWithTitle:@"分享" style:UIPreviewActionStyleDefault handler:^(UIPreviewAction * _Nonnull action, UIViewController * _Nonnull previewViewController) {
        NSLog(@"分享");
    }];
    
    NSArray *actions = @[action1,action2,action3];
    
       return actions;
}

peek(预览) peek(预览)

博客链接

IOS 3DTouch技术使用
IOS 3DTouch 代码

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