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[英]Swift 2 - SWRevealViewController: Remove interaction on frontview when menu is open
[英]SWRevealViewController: Remove interaction on frontview when rearview is revealed
当显示后视图时,我需要禁用前视图上的用户交互。 发现其他一些人提出了同样的问题,但无法真正理解在哪里或如何实现我所看到的代码。
例如:我从链接中找到了这个代码,
- (void)revealController:(SWRevealViewController *)revealController
willMoveToPosition:(FrontViewPosition)position {
if(position == FrontViewPositionLeft) {
self.view.userInteractionEnabled = YES;
} else {
self.view.userInteractionEnabled = NO;
}
}
- (void)revealController:(SWRevealViewController *)revealController
didMoveToPosition:(FrontViewPosition)position {
if(position == FrontViewPositionLeft) {
self.view.userInteractionEnabled = YES;
} else {
self.view.userInteractionEnabled = NO;
}
}
还发现了一些其他链接
我有这段代码,但不太确定插入这段代码的正确位置。 我尝试将它添加到我的前/后视图以及SWRevealViewController
方法中,但没有成功
感谢有人能指出我正确的方向。
我最近想出了一个我想分享的解决方案(抱歉,如果晚了 2 个月)。
要在菜单打开时禁用前视图上的用户交互,我在MenuViewController上添加了以下代码:
在viewWillAppear 上:
[self.revealViewController.frontViewController.view setUserInteractionEnabled:NO];
并在viewWillDisappear 上:
[self.revealViewController.frontViewController.view setUserInteractionEnabled:YES];
这将禁用前视图控制器上的所有用户交互,这意味着关闭菜单的滑动/点击手势也将被禁用。
现在,我创建了一个ParentViewController并使所有视图控制器(菜单项)成为它的子类。
在我的viewDidLoad 上,我输入了以下代码:
SWRevealViewController *revealController = [self revealViewController];
[revealController panGestureRecognizer];
[revealController tapGestureRecognizer];
如果此时您运行您的应用程序,看起来 Tap Gesture 有效(点击 Front View 将关闭菜单),但不是 Pan Gesture。 我不确定为什么会这样,但是为了启用滑动手势来关闭菜单,请在MenuViewController 中添加以下代码:
在viewWillAppear 上:
[self.revealViewController.view addGestureRecognizer:self.revealViewController.panGestureRecognizer];
总而言之,这是您需要的:
在您的MenuViewController 上:
-(void)viewWillAppear:(BOOL)animated {
[super viewWillAppear:animated];
[self.revealViewController.frontViewController.view setUserInteractionEnabled:NO];
[self.revealViewController.view addGestureRecognizer:self.revealViewController.panGestureRecognizer];
}
-(void)viewDidDisappear:(BOOL)animated {
[super viewDidDisappear:animated];
[self.revealViewController.frontViewController.view setUserInteractionEnabled:YES];
}
在您的菜单项的视图控制器上(您可以为所有菜单项创建一个ParentViewController ):
-(void)viewDidLoad {
[super viewDidLoad];
SWRevealViewController *revealController = [self revealViewController];
[revealController panGestureRecognizer];
[revealController tapGestureRecognizer];
}
希望这可以帮助!
我使用了另一种方法来实现相同的结果,不确定它是否有帮助。
将SWRevealViewControllerDelegate分配给AppDelegate
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
SWRevealViewController* reveal = (SWRevealViewController*)self.window.rootViewController;
reveal.delegate = self;
// other bootstrapping code
}
然后在委托方法-(void)revealController:(SWRevealViewController *)revealController willMoveToPosition:(FrontViewPosition)position
如下:
-(void)revealController:(SWRevealViewController *)revealController willMoveToPosition:(FrontViewPosition)position
{
if(position == FrontViewPositionLeft){
[revealController.frontViewController.view setUserInteractionEnabled:YES];
[revealController.frontViewController.revealViewController tapGestureRecognizer];
}else{
[revealController.frontViewController.view setUserInteractionEnabled:NO];
}
}
更新:添加这一行[revealController.frontViewController.revealViewController tapGestureRecognizer]
以在点击 frontviewcontroller 时关闭显示的控制器
@hardluckbaby 的 Swift 版本回答:
在MenuViewController (后视图控制器)中:
override func viewWillAppear(animated: Bool) {
super.viewWillAppear(animated)
self.revealViewController().frontViewController.view.userInteractionEnabled = false
self.revealViewController().view.addGestureRecognizer(self.revealViewController().panGestureRecognizer())
}
override func viewWillDisappear(animated: Bool) {
super.viewWillDisappear(animated)
self.revealViewController().frontViewController.view.userInteractionEnabled = true
}
在FrontViewController 中(如@hardluckbaby 所说,您可以为所有前视图控制器创建一个ParentViewController ):
override func viewDidLoad() {
super.viewDidLoad()
if let revealController = self.revealViewController() {
revealController.panGestureRecognizer()
revealController.tapGestureRecognizer()
}
}
正如约翰解释的那样:虽然这些解决方案确实有效,但我认为它们中的任何一个都没有解决最初的问题,这实际上很简单:
涉及2个步骤:
将以下方法添加到 FrontViewController.m:
(void)revealController:(SWRevealViewController *)revealController willMoveToPosition:(FrontViewPosition)position { if(position == FrontViewPositionLeft) { self.view.userInteractionEnabled = YES; } else { self.view.userInteractionEnabled = NO; } }
(void)revealController:(SWRevealViewController *)revealController didMoveToPosition:(FrontViewPosition)position { if(position == FrontViewPositionLeft) { self.view.userInteractionEnabled = YES; } else { self.view.userInteractionEnabled = NO; } }
使您的前视图控制器成为 FrontViewController.h 文件中 SWRevealViewController 的委托:
(例如 @interface HomeViewController : UIViewController )我的 FrontViewController 被命名为 HomeViewController
并且还在 FrontViewController.m 文件中包含以下关于 ViewDidLoad 的内容:
self.revealViewController.delegate = self; 问题解决了! 比创建父类等容易得多。
这将帮助您解决 FrontView 控制器的用户交互问题,我只想添加从 Xun 的响应中获取的以下更改,当用户点击 FrontViewController 时,您将解决用户交互和隐藏菜单。
- (void)revealController:(SWRevealViewController *)revealController
willMoveToPosition:(FrontViewPosition)position {
if(position == FrontViewPositionLeft) {
self.view.userInteractionEnabled = YES;
} else {
self.view.userInteractionEnabled = NO;
}
}
- (void)revealController:(SWRevealViewController *)revealController
didMoveToPosition:(FrontViewPosition)position {
if(position == FrontViewPositionLeft) {
self.view.userInteractionEnabled = YES;
} else {
self.view.userInteractionEnabled = NO;
//Hides the menu when user taps FrontViewController
[revealController.frontViewController.revealViewController tapGestureRecognizer];
}
}
Swift 3.0简单快捷的方法。
Frontviewcontoller 代码在这里...
override func viewDidLoad() {
super.viewDidLoad()
if self.revealViewController() != nil {
let rewel:SWRevealViewController = revealViewController()
rewel.panGestureRecognizer()
rewel.tapGestureRecognizer()
}
}
SideDrowerviewcontoller 代码在这里...
override func viewWillAppear(_ animated: Bool) {
let rewel = self.revealViewController()
rewel?.frontViewController.view.isUserInteractionEnabled = false
rewel?.frontViewController.view.addGestureRecognizer(self.revealViewController().panGestureRecognizer())
}
override func viewWillDisappear(_ animated: Bool) {
let rewel = self.revealViewController()
rewel?.frontViewController.view.isUserInteractionEnabled = true
}
当后视图打开时,将子视图添加到前视图。
在您的菜单项控制器的 viewWillAppear 方法中,只需在前视图上创建一个叠加按钮并将操作设置为revealToggle:ofrevealViewController
-(void)viewWillAppear:(BOOL)animated
{
[super viewWillAppear:animated];
overlayView = [UIButton buttonWithType:UIButtonTypeCustom];
overlayView.frame = self.revealViewController.frontViewController.view.bounds;
overlayView.backgroundColor = [UIColor colorWithWhite:0.5 alpha:0.8];
overlayView.tag = 999;
[overlayView addTarget:self.revealViewController action:@selector(revealToggle:) forControlEvents:UIControlEventTouchUpInside];
[overlayView addTarget:self.revealViewController action:@selector(revealToggle:) forControlEvents:UIControlEventTouchDragOutside];
[self.revealViewController.frontViewController.view addSubview:overlayView];
}
在revealToggle方法中删除覆盖按钮(如果有):
- (void)revealToggleAnimated:(BOOL)animated
{
UIButton *overlayView = (UIButton*)[self.view viewWithTag:999];
if (overlayView) {
[overlayView removeFromSuperview];
overlayView = nil;
}
// rest of the code...
}
尽管这些解决方案确实有效,但我认为它们中的任何一个都没有解决最初的问题,这实际上很简单:
涉及2个步骤:
1) 将以下方法添加到您的FrontViewController.m :
- (void)revealController:(SWRevealViewController *)revealController
willMoveToPosition:(FrontViewPosition)position {
if(position == FrontViewPositionLeft) {
self.view.userInteractionEnabled = YES;
} else {
self.view.userInteractionEnabled = NO;
}
}
- (void)revealController:(SWRevealViewController *)revealController
didMoveToPosition:(FrontViewPosition)position {
if(position == FrontViewPositionLeft) {
self.view.userInteractionEnabled = YES;
} else {
self.view.userInteractionEnabled = NO;
}
}
2)让你的前视图控制器成为FrontViewController.h文件中 SWRevealViewController 的委托:
(e.g. @interface HomeViewController : UIViewController <SWRevealViewControllerDelegate>)
我的 FrontViewController 被命名为 HomeViewController
并且还在FrontViewController.m文件中包含以下关于 ViewDidLoad 的内容:
self.revealViewController.delegate = self;
问题解决了! 比创建父类等容易得多。
另一种方法是在显示后视图时有一个覆盖视图。 您可以使用此更新的库https://github.com/NSRover/SWRevealViewController并确保在显示后视图时包含 shouldUseFrontViewOverlay = true 。
class SideMenuViewController: UITableViewController {
override func viewDidLoad() {
super.viewDidLoad()
self.revealViewController().delegate = self
}
}
extension SideMenuViewController: SWRevealViewControllerDelegate {
func revealController(revealController: SWRevealViewController!, willMoveToPosition position: FrontViewPosition) {
if position == .Left {
revealController.frontViewController.view.userInteractionEnabled = true
}
if position == .Right {
revealController.frontViewController.view.userInteractionEnabled = false
}
}
}
On MenuTableViewController/ Rear VC, add SWRevealViewControllerDelegate.
override func viewDidLoad() {
super.viewDidLoad()
self.revealViewController().delegate = self
if self.revealViewController() != nil {
self.view.addGestureRecognizer(self.revealViewController().panGestureRecognizer())
}
}
Add this delegate method.
func revealController(revealController: SWRevealViewController!, didMoveToPosition position: FrontViewPosition) {
if(position.rawValue == 4)
{
//move to rear
self.revealViewController().frontViewController.view.userInteractionEnabled = false
}
else if (position.rawValue == 3)
{
//move to front - dashboard VC
self.revealViewController().frontViewController.view.userInteractionEnabled = true
}
}
func revealController(revealController: SWRevealViewController!, willMoveToPosition position: FrontViewPosition) {
//will perform the same function as the above delegate method.
}
考虑以下解决方案,完美运行
private let DimmingViewTag = 10001
extension UIViewController: SWRevealViewControllerDelegate {
func removeInteractionFromFrontViewController() {
revealViewController().delegate = self
view.addGestureRecognizer(revealViewController().panGestureRecognizer())
}
//MARK: - SWRevealViewControllerDelegate
public func revealController(revealController: SWRevealViewController!, didMoveToPosition position: FrontViewPosition) {
if case .Right = position {
let dimmingView = UIView(frame: view.frame)
dimmingView.tag = DimmingViewTag
view.addSubview(dimmingView)
view.bringSubviewToFront(dimmingView)
} else {
view.viewWithTag(DimmingViewTag)?.removeFromSuperview()
}
}
}
UIViewController
简单用法:
override func viewDidAppear(animated: Bool) {
super.viewDidAppear(animated)
removeInteractionFromFrontViewController()
}
除了hardluckbaby答案。
如果此时您运行您的应用程序,看起来 Tap Gesture 有效(点击 Front View 将关闭菜单),但不是 Pan Gesture。 我不确定为什么会这样,但是为了启用滑动手势来关闭菜单,请在 MenuViewController 中添加以下代码:
在 viewWillAppear 上:
[self.revealViewController.view addGestureRecognizer:self.revealViewController.panGestureRecognizer];
它增加了一些不受欢迎的行为,例如平移手势会在开始时关闭后视。
如果您将它添加到您自己的视图中的某处,则默认平移手势可能不起作用,例如在您的前视图控制器的viewDidLoad上:
[self.view addGestureRecognizer:self.revealViewController.panGestureRecognizer];
删除这些行,这应该按预期工作,用于平移和点击手势
SWRevealViewController *revealController = [self revealViewController];
[revealController panGestureRecognizer];
[revealController tapGestureRecognizer];
我正在使用 viewWillAppear 和 viewWillDisappear 函数,但是因为我在侧面菜单中几乎每个项目都有子视图。 我的问题是我有一个输入字段处于活动状态(键盘显示)并访问了侧边菜单。 在根菜单中,键盘隐藏,但在我进入子菜单后,键盘再次出现。 为了解决这个问题,我改变了在revealController中启用和禁用交互的方法,如下所示:
- (void)revealController:(SWRevealViewController *)revealController
didMoveToPosition:(FrontViewPosition)position {
if (position == FrontViewPositionRight) {
[self.revealViewController.frontViewController.view setUserInteractionEnabled:NO];
} else if (position == FrontViewPositionLeft) {
[self.revealViewController.frontViewController.view setUserInteractionEnabled:YES];
}
}
首先设置你的委托: self.revealViewController.delegate = self; 和委托方法如下:
- (void)revealController:(SWRevealViewController *)revealController willMoveToPosition:(FrontViewPosition)position
{
static NSInteger tagLockView = 123456789;
if (revealController.frontViewPosition == FrontViewPositionRight)
{
UIView *lockView = [self.view viewWithTag:tagLockView];
[UIView animateWithDuration:0.3 animations:^{
lockView.alpha = 0;
} completion:^(BOOL finished) {
[lockView removeFromSuperview];
}];
}
else if (revealController.frontViewPosition == FrontViewPositionLeft)
{
UIView *lockView = [[UIView alloc] initWithFrame:self.view.bounds];
lockView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
lockView.tag = tagLockView;
lockView.backgroundColor = [UIColor blackColor];
lockView.alpha = 0;
[lockView addGestureRecognizer:[[UITapGestureRecognizer alloc] initWithTarget:self.revealViewController action:@selector(revealToggle:)]];
[self.view addSubview:lockView];
[UIView animateWithDuration:0.3 animations:^{
lockView.alpha = 0.5;
}];
}
}
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