長按事件

Question

可能重複：通過表自定義cell.How
How to detect tap on Uitableview cell with uiview and uibutton?
UIButton Long Press Event

我加載按鈕後才能確定我是否用戶的單次點擊或長按事件按鈕？

Answer 1

我只是谷歌它，我得到了最好的答案從堆棧溢出This

- (void)viewDidLoad 
{ 
    UILongPressGestureRecognizer *longPress = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(longPress:)]; 
    [self.button addGestureRecognizer:longPress]; 
    [longPress release]; 

[super viewDidLoad]; 


} 

和事件： -

- (void)longPress:(UILongPressGestureRecognizer*)gesture { 
    if (gesture.state == UIGestureRecognizerStateEnded) { 
     NSLog(@"Long Press"); 
    } 
} 

Answer 2

您可以通過創建和連接的UILongPressGestureRecognizer實例的按鈕開始。

UILongPressGestureRecognizer *longPress = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(longPress:)]; 
[self.button addGestureRecognizer:longPress]; 
[longPress release]; 

，然後實現它處理手勢

- (void)longPress:(UILongPressGestureRecognizer*)gesture { 
    if (gesture.state == UIGestureRecognizerStateEnded) { 
     NSLog(@"Long Press"); 
    } 
} 

現在，這將是基本方法的方法。您還可以設置印刷機的最短持續時間和可承受的誤差。另外請注意，如果您在識別該手勢後幾次調用該方法，那麼如果您想在其末尾執行某些操作，則必須檢查其狀態並處理它。

Reference

Answer 3

- (void)setLongTouchAction:(SEL)newValue 
{ 
    if (newValue == NULL) 
    { 
     [self removeGestureRecognizer:longPressGestureRecognizer]; 
     [longPressGestureRecognizer release]; 
     longPressGestureRecognizer = nil; 
    } 
    else 
    { 
     [longPressGestureRecognizer release]; 
     longPressGestureRecognizer = nil; 

     longPressGestureRecognizer = [[UILongPressGestureRecognizer alloc] initWithTarget:[[self allTargets] anyObject] action:newValue]; 
     [self addGestureRecognizer:longPressGestureRecognizer]; 
    } 
} 


[undoButton addTarget:self action:@selector(performUndo:) forControlEvents:UIControlEventTouchUpInside]; 
[undoButton setLongTouchAction:@selector(showUndoOptions:)];