[英]Swift 2 - SWRevealViewController: Remove interaction on frontview when menu is open
[英]SWRevealViewController: Remove interaction on frontview when rearview is revealed
當顯示后視圖時,我需要禁用前視圖上的用戶交互。 發現其他一些人提出了同樣的問題,但無法真正理解在哪里或如何實現我所看到的代碼。
例如:我從鏈接中找到了這個代碼,
- (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;
}
}
還發現了一些其他鏈接
我有這段代碼,但不太確定插入這段代碼的正確位置。 我嘗試將它添加到我的前/后視圖以及SWRevealViewController
方法中,但沒有成功
感謝有人能指出我正確的方向。
我最近想出了一個我想分享的解決方案(抱歉,如果晚了 2 個月)。
要在菜單打開時禁用前視圖上的用戶交互,我在MenuViewController上添加了以下代碼:
在viewWillAppear 上:
[self.revealViewController.frontViewController.view setUserInteractionEnabled:NO];
並在viewWillDisappear 上:
[self.revealViewController.frontViewController.view setUserInteractionEnabled:YES];
這將禁用前視圖控制器上的所有用戶交互,這意味着關閉菜單的滑動/點擊手勢也將被禁用。
現在,我創建了一個ParentViewController並使所有視圖控制器(菜單項)成為它的子類。
在我的viewDidLoad 上,我輸入了以下代碼:
SWRevealViewController *revealController = [self revealViewController];
[revealController panGestureRecognizer];
[revealController tapGestureRecognizer];
如果此時您運行您的應用程序,看起來 Tap Gesture 有效(點擊 Front View 將關閉菜單),但不是 Pan Gesture。 我不確定為什么會這樣,但是為了啟用滑動手勢來關閉菜單,請在MenuViewController 中添加以下代碼:
在viewWillAppear 上:
[self.revealViewController.view addGestureRecognizer:self.revealViewController.panGestureRecognizer];
總而言之,這是您需要的:
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];
}
在您的菜單項的視圖控制器上(您可以為所有菜單項創建一個ParentViewController ):
-(void)viewDidLoad {
[super viewDidLoad];
SWRevealViewController *revealController = [self revealViewController];
[revealController panGestureRecognizer];
[revealController tapGestureRecognizer];
}
希望這可以幫助!
我使用了另一種方法來實現相同的結果,不確定它是否有幫助。
將SWRevealViewControllerDelegate分配給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:添加這一行[revealController.frontViewController.revealViewController tapGestureRecognizer]
以在點擊 frontviewcontroller 時關閉顯示的控制器
@hardluckbaby 的 Swift 版本回答:
在MenuViewController (后視圖控制器)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 所說,您可以為所有前視圖控制器創建一個ParentViewController ):
override func viewDidLoad() {
super.viewDidLoad()
if let revealController = self.revealViewController() {
revealController.panGestureRecognizer()
revealController.tapGestureRecognizer()
}
}
正如約翰解釋的那樣:雖然這些解決方案確實有效,但我認為它們中的任何一個都沒有解決最初的問題,這實際上很簡單:
涉及2個步驟:
將以下方法添加到 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; } }
使您的前視圖控制器成為 FrontViewController.h 文件中 SWRevealViewController 的委托:
(例如 @interface HomeViewController : UIViewController )我的 FrontViewController 被命名為 HomeViewController
並且還在 FrontViewController.m 文件中包含以下關於 ViewDidLoad 的內容:
self.revealViewController.delegate = self; 問題解決了! 比創建父類等容易得多。
這將幫助您解決 FrontView 控制器的用戶交互問題,我只想添加從 Xun 的響應中獲取的以下更改,當用戶點擊 FrontViewController 時,您將解決用戶交互和隱藏菜單。
- (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簡單快捷的方法。
Frontviewcontoller 代碼在這里...
override func viewDidLoad() {
super.viewDidLoad()
if self.revealViewController() != nil {
let rewel:SWRevealViewController = revealViewController()
rewel.panGestureRecognizer()
rewel.tapGestureRecognizer()
}
}
SideDrowerviewcontoller 代碼在這里...
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
}
當后視圖打開時,將子視圖添加到前視圖。
在您的菜單項控制器的 viewWillAppear 方法中,只需在前視圖上創建一個疊加按鈕並將操作設置為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方法中刪除覆蓋按鈕(如果有):
- (void)revealToggleAnimated:(BOOL)animated
{
UIButton *overlayView = (UIButton*)[self.view viewWithTag:999];
if (overlayView) {
[overlayView removeFromSuperview];
overlayView = nil;
}
// rest of the code...
}
盡管這些解決方案確實有效,但我認為它們中的任何一個都沒有解決最初的問題,這實際上很簡單:
涉及2個步驟:
1) 將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)讓你的前視圖控制器成為FrontViewController.h文件中 SWRevealViewController 的委托:
(e.g. @interface HomeViewController : UIViewController <SWRevealViewControllerDelegate>)
我的 FrontViewController 被命名為 HomeViewController
並且還在FrontViewController.m文件中包含以下關於 ViewDidLoad 的內容:
self.revealViewController.delegate = self;
問題解決了! 比創建父類等容易得多。
另一種方法是在顯示后視圖時有一個覆蓋視圖。 您可以使用此更新的庫https://github.com/NSRover/SWRevealViewController並確保在顯示后視圖時包含 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.
}
考慮以下解決方案,完美運行
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
簡單用法:
override func viewDidAppear(animated: Bool) {
super.viewDidAppear(animated)
removeInteractionFromFrontViewController()
}
除了hardluckbaby答案。
如果此時您運行您的應用程序,看起來 Tap Gesture 有效(點擊 Front View 將關閉菜單),但不是 Pan Gesture。 我不確定為什么會這樣,但是為了啟用滑動手勢來關閉菜單,請在 MenuViewController 中添加以下代碼:
在 viewWillAppear 上:
[self.revealViewController.view addGestureRecognizer:self.revealViewController.panGestureRecognizer];
它增加了一些不受歡迎的行為,例如平移手勢會在開始時關閉后視。
如果您將它添加到您自己的視圖中的某處,則默認平移手勢可能不起作用,例如在您的前視圖控制器的viewDidLoad上:
[self.view addGestureRecognizer:self.revealViewController.panGestureRecognizer];
刪除這些行,這應該按預期工作,用於平移和點擊手勢
SWRevealViewController *revealController = [self revealViewController];
[revealController panGestureRecognizer];
[revealController tapGestureRecognizer];
我正在使用 viewWillAppear 和 viewWillDisappear 函數,但是因為我在側面菜單中幾乎每個項目都有子視圖。 我的問題是我有一個輸入字段處於活動狀態(鍵盤顯示)並訪問了側邊菜單。 在根菜單中,鍵盤隱藏,但在我進入子菜單后,鍵盤再次出現。 為了解決這個問題,我改變了在revealController中啟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];
}
}
首先設置你的委托: 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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