3 D 触摸 Objective-C 示例

Objective-C

//Checking for 3-D Touch availability
if ([self.traitCollection respondsToSelector:@selector(forceTouchCapability)] &&
        (self.traitCollection.forceTouchCapability == UIForceTouchCapabilityAvailable))
    {
        [self registerForPreviewingWithDelegate:self sourceView:self.view];
    }
//Peek
- (UIViewController *)previewingContext:(id<UIViewControllerPreviewing>)previewingContext
              viewControllerForLocation:(CGPoint)location {

    NSIndexPath *indexPath = [self.tableView indexPathForRowAtPoint:location];
    Country *country = [self countryForIndexPath:indexPath];
    if (country) {
        CountryCell *cell = [self.tableView cellForRowAtIndexPath:indexPath];
        if (cell) {
            previewingContext.sourceRect = cell.frame;
            UINavigationController *navController = [self.storyboard instantiateViewControllerWithIdentifier:@"UYLCountryNavController"];
            [self configureNavigationController:navController withCountry:country];
            return navController;
        }
    }
    return nil;
}
//Pop
- (void)previewingContext:(id<UIViewControllerPreviewing>)previewingContext commitViewController:(UIViewController *)viewControllerToCommit {
    
    [self showDetailViewController:viewControllerToCommit sender:self];
}