ios - 使用动画从右到左移除 View

Question

顺便说一句，当我从左到右单击时添加 View ，并想从右到左删除该 View 。

下面是我从左到右添加 View 时的代码

UIStoryboard *mainStoryboard = [UIStoryboard storyboardWithName:@"Main"
                                                         bundle: nil];

leftMenu = (LeftMenuViewController*)[mainStoryboard
                                                             instantiateViewControllerWithIdentifier: @"menuController"];



leftMenu.view.frame = CGRectMake(-320, 0, 320-50, self.view.frame.size.height);


[self addChildViewController:leftMenu];
[self.view addSubview:leftMenu.view];

[UIView animateWithDuration:0.3 animations:^{

    leftMenu.view.frame = CGRectMake(0, 0, 320-50, self.view.frame.size.height);
    hoverView.hidden = NO;


} completion:^(BOOL finished) {
    [leftMenu didMoveToParentViewController:self];
}];

为了从右到左移除这个 View ，我尝试过的是:

 self.view.frame = CGRectMake(320-50, 0, self.view.frame.size.width, self.view.frame.size.height);
[self willMoveToParentViewController:nil];


[UIView animateWithDuration:0.3 animations:^{

    self.view.frame = CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height);



} completion:^(BOOL finished) {

    [self removeFromParentViewController];
    [self.view removeFromSuperview];

}];

我想从右到左移除 View 。对如何进一步进行有帮助吗？

Answer 1

您必须将您的 subview 移出父 View 的框架，因此将您的 subview 的 x 坐标设置为其自身宽度的负值。这将导致您的 View 从右向左移出 View 。

[self willMoveToParentViewController:nil];

    [UIView animateWithDuration:0.3 animations:^{

        self.view.frame = CGRectMake(-self.view.frame.size.width, 0, self.view.frame.size.width, self.view.frame.size.height);
    } completion:^(BOOL finished) {

        [self removeFromParentViewController];
        [self.view removeFromSuperview];

    }];