UIView随手指的移动

  

   

    

     

    
    

     

      #import <UIKit/UIKit.h>
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

      @interface zzUIView : UIView
     
    
   

    

     

    
    

     

      {
     
    
   

    

     

    
    

     

          CGPoint beginPoint;
     
    
   

    

     

    
    

     

      }
     
    
   

    

     

    
    

     

      @property (nonatomic) BOOL dragEnable;
     
    
   

    

     

    
    

     

      @end
     
    
  
 

  

   

    

     

    
    

     

      #import "zzUIView.h"
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

      @implementation zzUIView
     
    
   

    

     

    
    

     

      @synthesize  dragEnable;
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

      - (id)initWithFrame:(CGRect)frame
     
    
   

    

     

    
    

     

      {
     
    
   

    

     

    
    

     

          self = [super initWithFrame:frame];
     
    
   

    

     

    
    

     
    if (self) {
     
    
   

    

     

    
    

     
        // Initialization code
     
    
   

    

     

    
    

     

          }
     
    
   

    

     

    
    

     
    return self;
     
    
   

    

     

    
    

     

      }
     
    
   

    

     

    
    

     

      - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
     
    
   

    

     

    
    

     

      {
     
    
   

    

     

    
    

     
    if (!dragEnable) {
     
    
   

    

     

    
    

     
        return;
     
    
   

    

     

    
    

     

          }
     
    
   

    

     

    
    

     

          UITouch *touch = [touches anyObject];
     
    
   

    

     

    
    

     
    
     
    
   

    

     

    
    

     

          beginPoint = [touch locationInView:self];
     
    
   

    

     

    
    

     
    
     
    
   

    

     

    
    

     

      }
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

      - (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event
     
    
   

    

     

    
    

     

      {
     
    
   

    

     

    
    

     
    if (!dragEnable) {
     
    
   

    

     

    
    

     
        return;
     
    
   

    

     

    
    

     

          }
     
    
   

    

     

    
    

     

          UITouch *touch = [touches anyObject];
     
    
   

    

     

    
    

     
    
     
    
   

    

     

    
    

     

          CGPoint nowPoint = [touch locationInView:self];
     
    
   

    

     

    
    

     
    
     
    
   

    

     

    
    

     
    float offsetX = nowPoint.x - beginPoint.x;
     
    
   

    

     

    
    

     
    float offsetY = nowPoint.y - beginPoint.y;
     
    
   

    

     

    
    

     
    
     
    
   

    

     

    
    

     

          self.center = CGPointMake(self.center.x + offsetX, self.center.y + offsetY);
     
    
   

    

     

    
    

     

      }
     
    
   

    

     

    
    

     

      @end
     
    
  
 

  
 
 

文章来源: zzzili.blog.csdn.net，作者：清雨小竹，版权归原作者所有，如需转载，请联系作者。

原文链接：zzzili.blog.csdn.net/article/details/9047177