如何将 ViewController 从左推到另一个上

Question

我想做一个这样的导航抽屉：

我看到了很多第三方库。但我想自己动手。

这是我正在尝试的：

   __block UIViewController *sourceViewController = self;

NavigationDrawerVC *controller = [[NavigationDrawerVC alloc] initWithNibName:@"NavigationDrawerVC" bundle:nil];


__block UIViewController *destinationController = (UIViewController*)controller;

CATransition* transition = [CATransition animation];
transition.duration = 5;
transition.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
transition.type = kCATransitionPush; //kCATransitionMoveIn; //, kCATransitionPush, kCATransitionReveal, kCATransitionFade
transition.subtype = kCATransitionFromLeft; //kCATransitionFromLeft, kCATransitionFromRight, kCATransitionFromTop, kCATransitionFromBottom



[sourceViewController.navigationController.view.layer addAnimation:transition
                                                            forKey:kCATransition];


[sourceViewController.navigationController pushViewController:destinationController animated:NO];

但我是这样的：

当我点击按钮时，我的屏幕变化如下：

我以前的 VIewController 也在移动。

我想修复它。而且我也无法在某些时候阻止它。

Answer 1

您可能需要考虑为此使用子控制器。

这里有一个非常简化的代码来演示这个概念。它添加了一个子视图控制器并将其动画到屏幕中间。这至少应该给你一个起点：

UIViewController *drawerVC = [[UIViewController alloc] init];
drawerVC.view.backgroundColor = [UIColor redColor];

[self addChildViewController:drawerVC];
drawerVC.view.frame = CGRectMake(-self.view.frame.size.width, 0, self.view.frame.size.width, self.view.frame.size.height);
[self.view addSubview:drawerVC.view];
[drawerVC didMoveToParentViewController:self];

[UIView animateWithDuration:0.3 animations:^{
    drawerVC.view.frame = CGRectOffset(drawerVC.view.frame, drawerVC.view.frame.size.width * 0.5, 0);
}];