ios未在UILongPressGestureRecognizer中獲得其他手指（多點觸控）事件

我如何獲得多點觸控和單點觸控事件？ios未在UILongPressGestureRecognizer中獲得其他手指（多點觸控）事件

我嘗試用左手指觸摸移動（而不是觸摸），現在我在屏幕上單擊右手指，但我嘗試獲取正確的手指觸摸事件或觸摸點（此時左手指仍然在屏幕上移動）。

我設置了日誌[手勢numberOfTouches]或[手勢numberOfTouchesRequired]。我仍然得到1，得不到2.

在我viewDidLoad方法我設置下面的代碼：

- (void)viewDidLoad { 
    [super viewDidLoad]; 
self.view.multipleTouchEnabled = YES; 
self.view.exclusiveTouch = NO; 

UILongPressGestureRecognizer *panelLongPressGestureRecognizer = 
[[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(panelLongPressRecgonizerAction:)]; 
panelLongPressGestureRecognizer.delegate = self; 

//panelLongPressGestureRecognizer.numberOfTapsRequired = 1; 
//panelLongPressGestureRecognizer.numberOfTouchesRequired = 1; 
panelLongPressGestureRecognizer.minimumPressDuration = 0.001; 
[self.view addGestureRecognizer:panelLongPressGestureRecognizer]; 


UILongPressGestureRecognizer *panelLongDoublePressGestureRecognizer = 
[[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(panelLongPressRecgonizerAction:)]; 
panelLongDoublePressGestureRecognizer.delegate = self; 
panelLongDoublePressGestureRecognizer.numberOfTapsRequired = 2; 
panelLongDoublePressGestureRecognizer.numberOfTouchesRequired = 2; 
panelLongDoublePressGestureRecognizer.minimumPressDuration = 0.001; 
[self.view addGestureRecognizer:panelLongDoublePressGestureRecognizer]; 
} 

- (void)panelLongPressRecgonizerAction:(UILongPressGestureRecognizer *) gestureRecognizer 
{ 
switch (gestureRecognizer.state) { 
    case UIGestureRecognizerStateBegan: 
     NSLog(@" === long press began ==="); 
     break; 
    case UIGestureRecognizerStatePossible: 
     break; 
    case UIGestureRecognizerStateChanged: 
     NSLog(@" === long press changed ==="); 
     [self pressChanged:gestureRecognizer]; 
     break; 
    case UIGestureRecognizerStateEnded: 
     NSLog(@" === long press end ==="); 
     break; 
    case UIGestureRecognizerStateCancelled: 
     NSLog(@" === long press cancell ==="); 
     break; 
    case UIGestureRecognizerStateFailed: 
     NSLog(@" === long press failed ==="); 
     break; 


} 
NSLog(@" ");

}

- (void) pressChanged:(UILongPressGestureRecognizer *) gesture 
{ 
    NSLog(@"moved guesture.number of touches:%ld", [gesture numberOfTouches]); 
    NSLog(@"moved numberOfTouchesRequired of touches:%ld", [gesture numberOfTouchesRequired]); 

}

我仍然可以登錄：

2015-05-11 14:25:46.117 DroneG2[7521:1149008] === long press changed === 
2015-05-11 14:25:46.118 DroneG2[7521:1149008] moved guesture.number of touches:1 
2015-05-11 14:25:46.118 DroneG2[7521:1149008] moved numberOfTouchesRequired of touches:1

有任何人都知道我的代碼在哪裏？

我想在移動時獲取其他手指觸摸點或事件嗎？

或者有其他方法可以實現多點觸控座標序列嗎？

非常感謝。

來源

2015-05-11 dickfala

確保您輕按兩次爲panelLongDoublePressGestureRecognizer獲取事件。 – Arvind

我不知道爲什麼，當我在屏幕上移動手指時，然後用其他手指點擊屏幕，即不進入panelLongDoublePressGestureRecognizer。你知道爲什麼嗎？ – dickfala

用戶必須在視圖上按下一個或多個手指，並在觸發操作之前將其保持在那裏至少一段時間。下來時，用戶的手指可能不會移動超過指定的距離;如果他們移動超出指定距離，則手勢失敗。 https://developer.apple.com/library/prerelease/ios/documentation/UIKit/Reference/UILongPressGestureRecognizer_Class/index.html – Arvind

對於複雜的觸摸事件使用UIResponder的方法..

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event; 
- (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event; 
- (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event; 
- (void)touchesCancelled:(NSSet *)touches withEvent:(UIEvent *)event;

計算和區分觸摸事件。

Apple Doc for multitouch

來源

2015-05-11 06:57:14

我的問題是從http://stackoverflow.com/questions/30117145/ios-multitouch-event-in-different-uiview/30117970?noredirect=1#comment48371038_30117970擴展。我正在使用touchesBegan orininal。 – dickfala

當我使用了touchMoved時，它會延遲。你可以在這裏看到我的問題：http：//stackoverflow.com/questions/30181332/how-to-resolve-touchesmoved-lag-in-ios – dickfala

ios未在UILongPressGestureRecognizer中獲得其他手指（多點觸控）事件

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