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iOS 3DTouch功能

iOS 3DTouch功能

作者: 莦婼姑娘 | 来源:发表于2017-05-05 17:24 被阅读0次

    3DTouch目前在手机上有两种体现方式,一种是用力按下app的图片icon,会弹出选项菜单,就像电脑上的右键。一种是在应用内的界面上用力按下,弹出的预览界面。

    一、iocn按下效果

    这里有两种方式实现:

    1、通过plist文件静态设置

    Info.plist文件设置

    UIApplicationShortcutItemUserInfo信息

    UIApplicationShortcutItemIconFile图标名称

    UIApplicationShortcutItemIconType图标类型

    UIApplicationShortcutItemTitle标题

    UIApplicationShortcutItemSubTitle副标题

    然后在AppDelegate里面实现代理方法,通过绑定的标签type来实现具体代码。

    -(void)application:(UIApplication*)applicationperformActionForShortcutItem:(UIApplicationShortcutItem*)shortcutItemcompletionHandler:(void(^)(BOOL))completionHandler{

    UINavigationController*nav = (UINavigationController*)self.window.rootViewController;

    if([shortcutItem.typeisEqualToString:@"ONE"]){

    UIViewController*vc = [[UIViewControlleralloc]init];

    vc.title=@"第一个";

    vc.view.backgroundColor= [UIColorredColor];

    [navpushViewController:vcanimated:YES];

    }elseif([shortcutItem.typeisEqualToString:@"TWO"]){

    UIViewController*vc = [[UIViewControlleralloc]init];

    vc.title=@"第二个";

    vc.view.backgroundColor= [UIColorgreenColor];

    [navpushViewController:vcanimated:YES];

    }

    }

    2、通过代码动态创建

    首先在AppDelegate的didFinishLaunchingWithOptions里面初始化

    - (BOOL)application:(UIApplication*)applicationdidFinishLaunchingWithOptions:(NSDictionary*)launchOptions {

    [selfsetup3DTouch:application];

    returnYES;

    }

    - (void)setup3DTouch:(UIApplication*)application{
    /**
    type 该item 唯一标识符
    localizedTitle :标题
    localizedSubtitle:副标题
    icon:icon图标 可以使用系统类型 也可以使用自定义的图片
    userInfo:用户信息字典 自定义参数,完成具体功能需求
    */
    //    UIApplicationShortcutIcon *icon1 = [UIApplicationShortcutIcon iconWithTemplateImageName:@"标签.png"];
    UIApplicationShortcutIcon *cameraIcon = [UIApplicationShortcutIcon iconWithType:UIApplicationShortcutIconTypeCompose];
    UIApplicationShortcutItem *cameraItem = [[UIApplicationShortcutItem alloc]initWithType:@"ONE" localizedTitle:@"拍照" localizedSubtitle:@"" icon:cameraIcon userInfo:nil];
    UIApplicationShortcutIcon *shareIcon = [UIApplicationShortcutIcon iconWithType:UIApplicationShortcutIconTypeShare];
    UIApplicationShortcutItem *shareItem = [[UIApplicationShortcutItem alloc] initWithType:@"TWO" localizedTitle:@"分享" localizedSubtitle:@"" icon:shareIcon userInfo:nil];
    /** 将items 添加到app图标 */
    application.shortcutItems = @[cameraItem,shareItem];
    }
    //最后在代理方法里面实现具体需求代码
    -(void)application:(UIApplication *)application performActionForShortcutItem:(UIApplicationShortcutItem *)shortcutItem completionHandler:(void (^)(BOOL))completionHandler{
    if([shortcutItem.type isEqualToString:@"ONE"]){
    NSLog(@"第一个");
    }else if ([shortcutItem.type isEqualToString:@"TWO"]){
    NSLog(@"第二个");
    }
    }

    二、应用内UI界面用力按下产生的3DTouch效果(这种方式也有两种实现效果)

    比如用力按下某个cell,弹出预览的小视图,同时上滑底部出现若干个选项(Peek功能)。

    首先注册需要实现Touch效果的View,判断下设备系统支不支持,不然会崩溃

    - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{

    static NSString *identifier = @"Cell";

    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:identifier];

    if (!cell) {

    cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:identifier];

    }

    cell.selectionStyle = UITableViewCellSelectionStyleNone;

    cell.textLabel.text = self.dataArray[indexPath.row];

    if ([self respondsToSelector:@selector(traitCollection)]) {

    if ([self.traitCollection respondsToSelector:@selector(forceTouchCapability)]) {

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

    [self registerForPreviewingWithDelegate:self sourceView:cell];

    }}}

    return cell;

    }

    把当前的cell注册绑定,然后试图界面实现UIViewControllerPreviewingDelegate代理

    #pragma mark - UIViewControllerPreviewingDelegate

    //Peek代理方法

    //1、弹出预览效果

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

    NSIndexPath *index = [self.tableView indexPathForCell:(UITableViewCell *)[previewingContext sourceView]];   

    NSString *title = self.dataArray[index.row];       

    Touch3DShowViewController *showVC = [[Touch3DShowViewController alloc]init];   

    showVC.string = title;   

    CGRect rect = CGRectMake(0, 0,  previewingContext.sourceView.frame.size.width, previewingContext.sourceView.frame.size.height);   

    previewingContext.sourceRect = rect;       

    return showVC;

    }

    //pop代理方法

    //2、在第1个效果的基础上,再继续用力按下去,就会push预览界面了。(pop功能)-(void)previewingContext:(id)previewingContext commitViewController:(UIViewController *)viewControllerToCommit{

    [self showViewController:viewControllerToCommit sender:self];

    }

    如果实现下面有几个选项的功能,需要在你预览界面里面(弹出的那个界面)实现一个方法,

    - (NSArray> *)previewActionItems{

    UIPreviewAction *action0 = [UIPreviewAction actionWithTitle:@"0普通的按钮" style:UIPreviewActionStyleDefault handler:^(UIPreviewAction * _Nonnull action, UIViewController * _Nonnull previewViewController) {

    //添加点击处理操作

    }];

    UIPreviewAction *action1 = [UIPreviewAction actionWithTitle:@"1取消" style:UIPreviewActionStyleDestructive handler:^(UIPreviewAction * _Nonnull action, UIViewController * _Nonnull previewViewController) {

    }];

    UIPreviewAction *action2 = [UIPreviewAction actionWithTitle:@"2选中" style:UIPreviewActionStyleSelected handler:^(UIPreviewAction * _Nonnull action, UIViewController * _Nonnull previewViewController) {

    }];

    UIPreviewAction *action3 = [UIPreviewAction actionWithTitle:@"3选中" style:UIPreviewActionStyleSelected handler:^(UIPreviewAction * _Nonnull action, UIViewController * _Nonnull previewViewController) {             

    }];

    return  @[action0, action1, action2, action3];

    //    //该按钮可以是一个组,点击该组时,跳到组里面的按钮.

    //    UIPreviewActionGroup *actionGroup = [UIPreviewActionGroup actionGroupWithTitle:@"按钮数组/剩下的按钮" style:UIPreviewActionStyleDefault actions:@[action2, action3]];

    //直接返回数组.

    //    return  @[action0,action1,actionGroup];

    }

    如果在别的控件上添加3DTouch,则需要在此控件上注册,剩下的不变。栗子🌰:button添加3DTouch:

    UIButton *buton = [UIButton buttonWithType:UIButtonTypeCustom];

    buton.frame = CGRectMake(50, 50, 200, 30);

    buton.backgroundColor = [UIColor redColor];

    [buton setTitle:@"3DTouch测试" forState:UIControlStateNormal];

    [buton addTarget:self action:@selector(addTimerView) forControlEvents:UIControlEventTouchUpInside];

    [self.view addSubview:buton];

    if ([self respondsToSelector:@selector(traitCollection)]) {

    if ([self.traitCollection respondsToSelector:@selector(forceTouchCapability)]) {

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

    [self registerForPreviewingWithDelegate:self sourceView:buton];

    }}}


    bug记录:

    如果cell是多样式的,有的cell需要3DTouch,有的不需要,此时注册绑定cell会出现问题。解决方法是:在当前的ViewController里定义一个全局的字典,key是cell,value是context,每次先判断这个cell有没有添加过,有的话取消,然后在判断需不需要添加。因为取消的时候不是传的cell,需要传id<UIViewControllerPreviewing>这个,就是注册时候的返回值,所以要用字典把cell和id<UIViewControllerPreviewing>这个绑定起来。

    取消注册绑定

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