3DTouch
iOS9中新增添了一个耀眼的功能，那就是新一代多点触控技术3D-Touch,想必大家都已经关注到了，3D-Touch有Peek and Pop 功能以及重力点击应用图标时弹出的ShortcutItem。一拿到6s那会便迫不及待地想试试这个牛逼哄哄滴新功能，对了3D-Touch需要硬件支持，目前只有6s和6sp支持。
首先是Peek and Pop 功能
1、首先是判断当前设备是否支持3D-Touch
self.traitCollection.forceTouchCapability==UIForceTouchCapabilityAvailable2、在需要使用3D-Touch的Peek and Pop功能的地方调用以下代码
//Registers a view controller to participate with 3D Touch preview (peek) and commit (pop).
[self registerForPreviewingWithDelegate:self sourceView:self.view];
//遵守协议UIViewControllerPreviewingDelegate，并实现方法previewingContext：viewControllerForLocation：和previewingContext：commitViewController：3、添加UIPreviewAction
在需要添加UIPreviewAction的ViewControll方法中重写previewActionItems，并且放回一个元素为UIPreviewAction的数组
-(NSArray<id>*)previewActionItems{
return self.kPreviewActionItems;
}
#pragma mark - Lazy Method
-(NSMutableArray *)kPreviewActionItems{
if (_kPreviewActionItems==nil) {
_kPreviewActionItems=[[NSMutableArray alloc] init];
UIPreviewAction *cancelAction=[UIPreviewAction actionWithTitle:@"取消" style:UIPreviewActionStyleDestructive handler:^(UIPreviewAction * _Nonnull action, UIViewController * _Nonnull previewViewController) {
NSLog(@"取消");
}];
UIPreviewAction *firstAction=[UIPreviewAction actionWithTitle:@"第一个" style:UIPreviewActionStyleSelected handler:^(UIPreviewAction * _Nonnull action, UIViewController * _Nonnull previewViewController) {
NSLog(@"第一个 选中");
}];
UIPreviewAction *secondAction=[UIPreviewAction actionWithTitle:@"第二个" style:UIPreviewActionStyleDefault handler:^(UIPreviewAction * _Nonnull action, UIViewController * _Nonnull previewViewController) {
NSLog(@"第二个");
}];
[_kPreviewActionItems addObject:firstAction];
[_kPreviewActionItems addObject:secondAction];
[_kPreviewActionItems addObject:cancelAction];
}
return _kPreviewActionItems;
} 完整代码如下：
AppDelegate：
#import "AppDelegate.h"
#import "ViewController.h"
@interface AppDelegate ()
@end
@implementation AppDelegate
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
// Override point for customization after application launch.
ViewController *VC=[[ViewController alloc] init];
UINavigationController *navi=[[UINavigationController alloc] initWithRootViewController:VC];
self.window.rootViewController=navi;
return YES;
}ViewController：
#import "ViewController.h"
#import "DetailViewController.h"
@interface ViewController () <UIViewControllerPreviewingDelegate>
@end
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
self.view.backgroundColor=[UIColor whiteColor];
UIBarButtonItem *rightItem=[[UIBarButtonItem alloc] initWithTitle:@"Next" style:UIBarButtonItemStylePlain target:self action:@selector(nextAction)];
self.navigationItem.rightBarButtonItem=rightItem;
UIBarButtonItem *backItem=[[UIBarButtonItem alloc] initWithTitle:@"back" style:UIBarButtonItemStylePlain target:nil action:nil];
self.navigationItem.backBarButtonItem=backItem;
//check if the device supports 3DTouch
if (self.traitCollection.forceTouchCapability==UIForceTouchCapabilityAvailable) {
//Registers a view controller to participate with 3D Touch preview (peek) and commit (pop).
[self registerForPreviewingWithDelegate:self sourceView:self.view];
}
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
}
#pragma mark - UIViewControllerPreviewingDelegate
-(UIViewController *)previewingContext:(id)previewingContext viewControllerForLocation:(CGPoint)location{
DetailViewController *VC=[[DetailViewController alloc] init];
//可以设置大小
// VC.preferredContentSize=CGSizeMake(0.0, 400);
return VC;
}
-(void)previewingContext:(id)previewingContext commitViewController:(UIViewController *)viewControllerToCommit{
[self showViewController:viewControllerToCommit sender:self];
}
#pragma mark - Action Method
-(void)nextAction{
DetailViewController *VC=[[DetailViewController alloc] init];
[self.navigationController pushViewController:VC animated:YES];
}
@end DetailViewController：
#import "DetailViewController.h"
@interface DetailViewController ()
@property(nonatomic,retain) NSMutableArray *kPreviewActionItems;
@end
@implementation DetailViewController
#pragma mark - Life Cycle
- (void)viewDidLoad {
[super viewDidLoad];
self.view.backgroundColor=[UIColor grayColor];
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
}
#pragma mark - Override
-(NSArray<id>*)previewActionItems{
return self.kPreviewActionItems;
}
#pragma mark - Lazy Method
-(NSMutableArray *)kPreviewActionItems{
if (_kPreviewActionItems==nil) {
_kPreviewActionItems=[[NSMutableArray alloc] init];
UIPreviewAction *cancelAction=[UIPreviewAction actionWithTitle:@"取消" style:UIPreviewActionStyleDestructive handler:^(UIPreviewAction * _Nonnull action, UIViewController * _Nonnull previewViewController) {
NSLog(@"取消");
}];
UIPreviewAction *firstAction=[UIPreviewAction actionWithTitle:@"第一个" style:UIPreviewActionStyleSelected handler:^(UIPreviewAction * _Nonnull action, UIViewController * _Nonnull previewViewController) {
NSLog(@"第一个 选中");
}];
UIPreviewAction *secondAction=[UIPreviewAction actionWithTitle:@"第二个" style:UIPreviewActionStyleDefault handler:^(UIPreviewAction * _Nonnull action, UIViewController * _Nonnull previewViewController) {
NSLog(@"第二个");
}];
[_kPreviewActionItems addObject:firstAction];
[_kPreviewActionItems addObject:secondAction];
[_kPreviewActionItems addObject:cancelAction];
}
return _kPreviewActionItems;
}
@end UIApplicationShortcutItem：重压应用图标时
有两种方法，一种是在Info.plist中进行静态设置，一种是用代码动态设置。我偏向第二种，所以下面的方法也是第二种方法。
1、在ViewController中设置应用程序的UIApplicationShortcutItem
-(void)shortCutItemConfig{
UIApplicationShortcutItem *item1=[[UIApplicationShortcutItem alloc] initWithType:@"1" localizedTitle:@"第一个标签" localizedSubtitle:nil icon:nil userInfo:nil];
UIApplicationShortcutIcon *icon2=[UIApplicationShortcutIcon iconWithType:UIApplicationShortcutIconTypeFavorite];
UIApplicationShortcutItem *item2=[[UIApplicationShortcutItem alloc] initWithType:@"2" localizedTitle:@"第二个标签" localizedSubtitle:@"你好，色彩" icon:icon2 userInfo:nil];
UIApplicationShortcutIcon *icon3=[UIApplicationShortcutIcon iconWithType:UIApplicationShortcutIconTypeMessage];
UIApplicationShortcutItem *item3=[[UIApplicationShortcutItem alloc] initWithType:@"3" localizedTitle:@"第三个标签" localizedSubtitle:@"消息" icon:icon3 userInfo:nil];
UIApplicationShortcutIcon *icon4=[UIApplicationShortcutIcon iconWithType:UIApplicationShortcutIconTypeLove];
UIApplicationShortcutItem *item4=[[UIApplicationShortcutItem alloc] initWithType:@"4" localizedTitle:@"第四个标签" localizedSubtitle:@"爱神" icon:icon4 userInfo:nil];
[UIApplication sharedApplication].shortcutItems=@[item4,item3,item2,item1];
}2、用户点击UIApplicationShortcutItem时，在AppDelegate中进行相应的响应
-(BOOL)application:(UIApplication *)application willFinishLaunchingWithOptions:(NSDictionary *)launchOptions{
//判断应用是不是从UIApplicationShortcutItem进入的
NSString *shortcutItemKey=[launchOptions objectForKey:UIApplicationLaunchOptionsShortcutItemKey];
NSLog(@"shortcutItemKey=%@",shortcutItemKey);
if ([shortcutItemKey intValue]>=1) {
return NO;
}
return YES;
}
//当我们点击标签进入应用程序时，也可以进行一些操作。当我们通过标签进入app时，就会调用这样一个回调，我们可以获取shortcutItem的信息进行相关逻辑操作
//except when -application:willFinishLaunchingWithOptions: or -application:didFinishLaunchingWithOptions returns NO.
-(void)application:(UIApplication *)application performActionForShortcutItem:(UIApplicationShortcutItem *)shortcutItem completionHandler:(void (^)(BOOL))completionHandler{
ViewController *VC=[[ViewController alloc] init];
UINavigationController *navi=[[UINavigationController alloc] initWithRootViewController:VC];
self.window.rootViewController=navi;
NSLog(@"shortcutItem=%@",shortcutItem);
int type=[shortcutItem.type intValue]-1;
UIViewController *viewController;
NSArray *classArr=@[[FirstViewController class],[SecondViewController class],[ThirdViewController class],[ForthViewController class]];
viewController=[[[classArr objectAtIndex:type] alloc] init];
[navi pushViewController:viewController animated:YES];
}