3DTouch
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6s和6s plus之后特有效果,对着应用图标用力按会触发3DTouch .
一、程序实现
第一步 : 3DTouch 设备支持检测:
检测当前的设备是否支持3DTouch
// 在iOS9中有一个新的枚举
typedef
NS_ENUM(NSInteger, UIForceTouchCapability) {
UIForceTouchCapabilityUnknown = 0,
// 未知的支持属性
UIForceTouchCapabilityUnavailable = 1,
// 不支持
UIForceTouchCapabilityAvailable = 2
// 支持
};
一般我们都在每个ViewController的生命周期中这样做:
定义一个是否设备支持的BOOL值属性
@property (nonatomic , assign)
BOOL
support3DTouch;
在生命周期函数中检测支持与否
- (
void
)viewWillAppear:(
BOOL
)animated {
[super viewWillAppear:animated];
//检测当前是否支持3DTouch
self.support3DTouch = [self support3DTouch];
}
在生命周期外检测支持与否(因为有可能出了生命周期函数而发生了变化)
- (
void
)traitCollectionDidChange:(nullable UITraitCollection *)previousTraitCollection NS_AVAILABLE_IOS(8_0) {
self.support3DTouch = [self support3DTouch];
}
检测是否支持3DTouch的方法
- (
BOOL
)support3DTouch
{
// 如果开启了3D touch
if
(self.traitCollection.forceTouchCapability == UIForceTouchCapabilityAvailable)
{
return
YES;
}
return
NO;
}
}
第二步 : 配置快捷视图列表
创建快捷视图列表有两种方法:
1,一种是编辑info.plist文件中的UIApplicationShortcutItems,
通过可视化的界面添加键值对直接配置info.plist
2,另一种是使用代码在工程中加入items
在工程的 AppDelegate.m
- (
BOOL
)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
self.window.rootViewController = [[UINavigationController alloc] initWithRootViewController:[[HomeViewController alloc] init]];
[self.window makeKeyAndVisible];
// 代码创建快捷视图列表的方法,
[self create3DTouchShotItems];
return
YES;
}
代码创建快捷视图列表的方法:
- (
void
)create3DTouchShotItems {
//创建快捷item的icon UIApplicationShortcutItemIconFile
UIApplicationShortcutIcon *icon1 = [UIApplicationShortcutIcon iconWithTemplateImageName:@
"icon1"
];
UIApplicationShortcutIcon *icon2 = [UIApplicationShortcutIcon iconWithTemplateImageName:@
"icon2"
];
UIApplicationShortcutIcon *icon3 = [UIApplicationShortcutIcon iconWithTemplateImageName:@
"icon3"
];
//创建快捷item的userinfo UIApplicationShortcutItemUserInfo
NSDictionary *info1 = @{@
"url"
:@
"url1"
};
NSDictionary *info2 = @{@
"url"
:@
"url2"
};
NSDictionary *info3 = @{@
"url"
:@
"url3"
};
//创建ShortcutItem
UIMutableApplicationShortcutItem *item1 = [[UIMutableApplicationShortcutItem alloc]initWithType:@
"XS_3DTocuh_1"
localizedTitle:@
"扫一扫"
localizedSubtitle:@
""
icon:icon1 userInfo:info1];
UIMutableApplicationShortcutItem *item2 = [[UIMutableApplicationShortcutItem alloc]initWithType:@
"XS_3DTocuh_2"
localizedTitle:@
"smile"
localizedSubtitle:@
"微笑面对生活"
icon:icon2 userInfo:info2];
UIMutableApplicationShortcutItem *item3 = [[UIMutableApplicationShortcutItem alloc]initWithType:@
"XS_3DTocuh_3"
localizedTitle:@
"购物"
localizedSubtitle:@
"Shopping"
icon:icon3 userInfo:info3];
NSArray *items = @[item1, item2, item3];
[UIApplication sharedApplication].shortcutItems = items;
}
第三步 : 给列表视图中的cell注册 3DTouch 事件
1,首先,在首页当前控制器里遵守UIViewControllerPreviewingDelegate协议
UIViewControllerPreviewingDelegate
2,在注册前先判断是否设备支持(也就是第一步)
3,注册: [self registerForPreviewingWithDelegate:self sourceView:cell];
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
ZLTableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@
"ZLTableViewCell"
];
if
(cell == nil) {
cell = [ZLTableViewCell cellWithTableView:tableView];
}
cell.dataFrame = self.dataSource[indexPath.row];
//给cell注册代理,使其支持3DTouch手势
if
(self.support3DTouch) {
[self registerForPreviewingWithDelegate:self sourceView:cell];
}
return
cell;
}
第四步: 完成UIViewControllerPreviewingDelegate 协议回调,实现Peek Pop
在首页当前控制器里,
#pragma mark - 3DTouch UIViewControllerPreviewingDelegate
Peek 实现代码:
此方法是轻按控件时,跳出peek的代理方法
- (UIViewController *)previewingContext:(id<UIViewControllerPreviewing>)previewingContext viewControllerForLocation:(CGPoint)location {
//防止重复加入
if
([self.presentedViewController isKindOfClass:[ZLPeekViewController
class
]])
{
return
nil;
}
else
{
ZLTableViewCell *cell = (ZLTableViewCell *)previewingContext.sourceView;
ZLCellData * cellData = cell.dataFrame.cellData;
ZLPeekViewController *peekViewController = [[ZLPeekViewController alloc] init];
peekViewController.cellData = cellData;
peekViewController.delegate = self;
return
peekViewController;
}
}
Pop 代码:
此方法是重按peek时,跳入pop的代理方法
- (
void
)previewingContext:(id<UIViewControllerPreviewing>)previewingContext
commitViewController:(UIViewController *)viewControllerToCommit {
ZLTableViewCell *cell = (ZLTableViewCell *)previewingContext.sourceView;
ZLCellData * cellData = cell.dataFrame.cellData;
ZLPopViewController *popViewController = [[ZLPopViewController alloc] init];
popViewController.cellData = cellData;
// 以prentViewController的形式展现
[self showViewController:popViewController sender:self];
// 以push的形势展现
// [self.navigationController pushViewController:popViewController animated:YES];
}
第五步 : 在Peek状态下向上滑动出现的按钮配置方法
在 ZLPeekViewController.m 里, 实现 - (NSArray> *)previewActionItems 回调方法
#pragma mark - Preview Actions
- (NSArray<id<UIPreviewActionItem>> *)previewActionItems {
// 生成UIPreviewAction
UIPreviewAction *action1 = [UIPreviewAction actionWithTitle:@
"事件 1"
style:UIPreviewActionStyleDefault handler:^(UIPreviewAction * _Nonnull action, UIViewController * _Nonnull previewViewController) {
NSLog(@
"Action 1 selected"
);
[self.delegate pushToPopViewControllerWithCellData:self.cellData];
}];
UIPreviewAction *action2 = [UIPreviewAction actionWithTitle:@
"事件 2"
style:UIPreviewActionStyleDestructive handler:^(UIPreviewAction * _Nonnull action, UIViewController * _Nonnull previewViewController) {
NSLog(@
"Action 2 selected"
);
}];
UIPreviewAction *action3 = [UIPreviewAction actionWithTitle:@
"事件 3"
style:UIPreviewActionStyleSelected handler:^(UIPreviewAction * _Nonnull action, UIViewController * _Nonnull previewViewController) {
NSLog(@
"Action 3 selected"
);
}];
UIPreviewAction *tap1 = [UIPreviewAction actionWithTitle:@
"按钮 1"
style:UIPreviewActionStyleDefault handler:^(UIPreviewAction * _Nonnull action, UIViewController * _Nonnull previewViewController) {
NSLog(@
"tap 1 selected"
);
}];
UIPreviewAction *tap2 = [UIPreviewAction actionWithTitle:@
"按钮 2"
style:UIPreviewActionStyleDestructive handler:^(UIPreviewAction * _Nonnull action, UIViewController * _Nonnull previewViewController) {
NSLog(@
"tap 2 selected"
);
}];
UIPreviewAction *tap3 = [UIPreviewAction actionWithTitle:@
"按钮 3"
style:UIPreviewActionStyleSelected handler:^(UIPreviewAction * _Nonnull action, UIViewController * _Nonnull previewViewController) {
NSLog(@
"tap 3 selected"
);
}];
NSArray *actions = @[action1, action2, action3];
NSArray *taps = @[tap1, tap2, tap3];
UIPreviewActionGroup *group1 = [UIPreviewActionGroup actionGroupWithTitle:@
"一组事件"
style:UIPreviewActionStyleDefault actions:actions];
UIPreviewActionGroup *group2 = [UIPreviewActionGroup actionGroupWithTitle:@
"一组按钮"
style:UIPreviewActionStyleDefault actions:taps];
NSArray *group = @[group1,group2];
//当然你也可以返回三个单独的action对象的数组,而不是group,具体效果,可以自己试一下
return
group;
}
二、运行效果与文件截图
1、运行效果截图:
2、文件截图:
三、其他补充
界面性问题可以根据自己项目需求调整即可, 具体可参考代码, 项目能够直接运行!
如需看详情版,请点击这里下载!
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