如何爲TapGesture識別器設置框架

Question

我有一個imageview，我只想點擊imageview的一側。是否可以爲手勢設置框架？任何人都可以提供解決方案嗎？

Answer 1

使用UIGestureRecognizerDelegate，我認爲你可以得到關於如何比較的想法：

-(BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch { 
    if ([touch locationInView:yourview].x < somePoint.x) { 
     return false; 
    } else { 
     return true; 
    } 
} 

Answer 2

你可以覆蓋在ImageView的頂視圖和水龍頭識別到這個新的觀點，這樣的事情會使圖像tapable

UIView tapView = [[UIView alloc]initWithFrame:CGRectMake(0, 0, imageView.frame.size.width/2, imageView.frame.size.height)]; 

[imageView addSubView:tapView] 

UITapGestureRecognizer *singleFingerTap = 
    [[UITapGestureRecognizer alloc] initWithTarget:self 
              action:@selector(handleSingleTap:)]; 
[tapView addGestureRecognizer:singleFingerTap]; 

Answer 3

您可以簡單地把UIView的上框，按您的要求，您的ImageView頂部的左側，把輕敲姿勢上的UIView。

您可以通過storyboard/xib或以編程方式完成此操作。

以編程方式，例如 - 您只想點擊寬度爲50px的imageView區域。對於這一點：

UIView *vw = [[UIView alloc] initWithFrame:CGRectMake(imgView.frame.origin.x, imgView.frame.origin.y, 50, imgView.frame.size.height)]; 

    // add gesture to view 
    UITapGestureRecognizer *tapGesture = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleTapGesture:)]; 
    tapGesture.numberOfTapsRequired = 2; 
    [vw addGestureRecognizer:tapGesture]; 

    [imgView addSubview:vw]; 

現在處理您雙擊

-(void)handleTapGesture:(UITapGestureRecognizer *)gesture 
{ 
    // handle double tap 
}