Ios 导航栏中的下拉菜单
有人知道在导航栏底部附加可伸缩菜单的好方法吗 我发现了:,但它的行为是向下拉动整个视图,不放手,然后通过拖动手指来选择所需的项目 Zappos应用程序是我想要的一个完美的例子。有人知道他们可能在使用什么或现有的解决方案吗?我在椰子树上搜索过,没找到多少。Ios 导航栏中的下拉菜单,ios,objective-c,menu,uinavigationbar,custom-controls,Ios,Objective C,Menu,Uinavigationbar,Custom Controls,有人知道在导航栏底部附加可伸缩菜单的好方法吗 我发现了:,但它的行为是向下拉动整个视图,不放手,然后通过拖动手指来选择所需的项目 Zappos应用程序是我想要的一个完美的例子。有人知道他们可能在使用什么或现有的解决方案吗?我在椰子树上搜索过,没找到多少。 你愿意做这样的工作吗?当然,您可以将所需的任何菜单按钮添加到菜单视图中 UIView * menu; UIButton * activate; int menuHeight; int buttonHeight; -(void)toggleMe
你愿意做这样的工作吗?当然,您可以将所需的任何菜单按钮添加到菜单视图中
UIView * menu;
UIButton * activate;
int menuHeight;
int buttonHeight;
-(void)toggleMenu:(UIButton*)sender{
[sender setUserInteractionEnabled:NO];
[self.view bringSubviewToFront:menu];
if (sender.tag == 1000){
[UIView transitionWithView:menu duration:0.3 options:UIViewAnimationOptionCurveEaseInOut animations:^{
CGRect frame = CGRectMake(menu.frame.origin.x,menu.frame.origin.y - menu.frame.size.height + buttonHeight ,menu.frame.size.width,menu.frame.size.height);
menu.frame = frame;
[sender setUserInteractionEnabled:YES];
} completion:nil];
sender.tag = 2000;
} else {
[UIView transitionWithView:menu duration:0.3 options:UIViewAnimationOptionCurveEaseInOut animations:^{
CGRect frame = CGRectMake(menu.frame.origin.x,menu.frame.origin.y + menu.frame.size.height - buttonHeight ,menu.frame.size.width,menu.frame.size.height);
menu.frame = frame;
[sender setUserInteractionEnabled:YES];
} completion:nil];
sender.tag = 1000;
}
}
menuHeight = 100;
buttonHeight = 20;
activate = [UIButton buttonWithType:UIButtonTypeRoundedRect];
[activate addTarget:self action:@selector(toggleMenu:) forControlEvents:UIControlEventTouchUpInside];
[activate setTitle:@"Menu" forState:UIControlStateNormal];
activate.frame = CGRectMake(80.0, menuHeight - buttonHeight, 70.0, buttonHeight);
activate.autoresizingMask = UIViewAutoresizingFlexibleLeftMargin|UIViewAutoresizingFlexibleRightMargin;
activate.tag = 2000;
menu = [[UIView alloc] initWithFrame:CGRectMake(0,0 - menuHeight + buttonHeight,self.view.bounds.size.width, menuHeight)];
menu.autoresizingMask = UIViewAutoresizingFlexibleWidth;
menu.backgroundColor = [UIColor grayColor];
[self.view addSubview:menu];
[menu addSubview:activate];
然后,您可以使用一些约束来向下移动表,或者不向下移动。这是未经测试,但应该让你指向正确的方向
-(void)toggleMenu:(UIButton*)sender{
UIView * menu;
[sender setUserInteractionEnabled:NO];
[self.view bringSubviewToFront:menu];
id topGuide = self.topLayoutGuide;
id bottomGuide = self.bottomLayoutGuide;
NSDictionary * viewsDictionary;
viewsDictionary = NSDictionaryOfVariableBindings(myTable, topGuide, bottomGuide, menu);
NSArray * newVertConstraint;
if (sender.tag == 1000){
newVertConstraint = [NSLayoutConstraint constraintsWithVisualFormat:[NSString stringWithFormat:@"V:|[bottomGuide][menu(==%f)][myTable][bottomGuide]|", 0.0] options:0 metrics: 0 views:viewsDictionary];
sender.tag = 2000;
} else {
newVertConstraint = [NSLayoutConstraint constraintsWithVisualFormat:[NSString stringWithFormat:@"V:|[bottomGuide][menu(==%f)][myTable][bottomGuide]|", menu.frame.size.height] options:0 metrics: 0 views:viewsDictionary];
sender.tag = 1000;
}
[self.view removeConstraints:vertConstraint];
[self.view addConstraints:newVertConstraint];
[self.view setNeedsUpdateConstraints];
[UIView animateWithDuration:1.5 animations:^{
[self.view layoutIfNeeded];
}];
vertConstraint = newVertConstraint;
}
NSArray * vertConstraint;
UITableView * myTable = [[UITableView alloc] init];
[self.view addSubview:myTable];
self.automaticallyAdjustsScrollViewInsets = NO;
[myTable setTranslatesAutoresizingMaskIntoConstraints: NO];
[menu setTranslatesAutoresizingMaskIntoConstraints: NO];
id topGuide = self.topLayoutGuide;
id bottomGuide = self.bottomLayoutGuide;
NSDictionary * viewsDictionary;
viewsDictionary = NSDictionaryOfVariableBindings(myTable, topGuide, bottomGuide, menu);
vertConstraint = [NSLayoutConstraint constraintsWithVisualFormat:@"V:|[bottomGuide][menu(==0)][myTable][bottomGuide]|" options:0 metrics: 0 views:viewsDictionary];
[self.view addConstraints:vertConstraint];
[self.view addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"H:|[menu]|" options:0 metrics: 0 views:viewsDictionary]];
[self.view addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"H:|[myTable]|" options:0 metrics: 0 views:viewsDictionary]];
这肯定有用!我必须弄清楚如何使它向下推我的tableView标题,但这不会花费太长时间。您知道如何在向下拉时使此视图粘贴到导航栏的底部吗?而不是整个滚动视图?