在ECSlidingViewController中,如何禁用从屏幕滑动的顶视图

Question

所以我正在尝试将ECSlidingViewController示例实现到我的应用程序中. github这个来源

我唯一想做的就是修改它,防止TopView在更改包含的视图之前完全滑离屏幕,而只是保持TopView到位,但用它的新视图控制器更新它的包含视图从菜单中选择.Facebook应用程序对此的看法正是我想要的,以防听起来令人困惑.

在项目中查看了一段时间之后,我确定它肯定(显然)与ECSlidingViewController.h中的这行代码有关:

- (void)anchorTopViewOffScreenTo:(ECSide)side animations:(void(^)())animations onComplete:(void(^)())complete;

我查看了.m中调用它的位置:

- (void)anchorTopViewOffScreenTo:(ECSide)side{
[self anchorTopViewOffScreenTo:side animations:nil onComplete:nil];
}

- (void)anchorTopViewOffScreenTo:(ECSide)side animations:(void(^)())animations onComplete:(void(^)())complete
{
CGFloat newCenter = self.topView.center.x;
if (side == ECLeft) {
 newCenter = -self.resettedCenter;
} else if (side == ECRight) {
 newCenter = self.screenWidth + self.resettedCenter;
}

[self topViewHorizontalCenterWillChange:newCenter];

[UIView animateWithDuration:0.25f animations:^{
 if (animations) {
  animations();
}
[self updateTopViewHorizontalCenter:newCenter];
} completion:^(BOOL finished){
 if (complete) {
  complete();
 }
 _topViewIsOffScreen = YES;
 [self addTopViewSnapshot];
 dispatch_async(dispatch_get_main_queue(), ^{
   NSString *key = (side == ECLeft) ? ECSlidingViewTopDidAnchorLeft : ECSlidingViewTopDidAnchorRight;
  [[NSNotificationCenter defaultCenter] postNotificationName:key object:self userInfo:nil];
 });
}];
}

这是我猜测动画被告知如何动画的地方,但我不明白这有什么可以告诉它移出屏幕.我是否忽略了一些简单的事情,如更换东西nil？也许在某处我还没有找到另一个价值？这是我在StackOverflow上的第一个问题,虽然我对Obj-C一般是新手,但我对它的工作方式有了相当的把握.所以我希望至少得到正确方向的提示.谢谢!

Answer 1

只需使用以下方法

- (void)anchorTopViewTo:(ECSide)side animations:(void (^)())animations onComplete:(void(^)())complete

代替

- (void)anchorTopViewOffScreenTo:(ECSide)side animations:(void(^)())animations onComplete:(void(^)())complete