ios - 当图像移动时，如何按住并拖动图像？

Question

这是我随机移动图像和触摸代码的代码。

-(void)viewDidAppear:(BOOL)animated {

timer = [NSTimer scheduledTimerWithTimeInterval:5 target:self selector:@selector(randomizeXandY) userInfo:nil repeats:YES];
}

-(void)randomizeXandY {

CGFloat x = (CGFloat) (arc4random() % (int) self.view.bounds.size.width);
CGFloat y = (CGFloat) (arc4random() % (int) self.view.bounds.size.height);

[self moveObjectsAtX:x Y:y];

}

-(void)moveObjectsAtX:(CGFloat)x Y:(CGFloat)y {

[UIView animateWithDuration:5 animations:^{
    imgView.center = CGPointMake(x, y);
}];

}

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

UITouch *touch = [[event allTouches]anyObject];
CGPoint touchLocation = [touch locationInView:self.view];

  if ([touch view] == imgView) {

      imgView.center = touchLocation;
  }

}

Answer 1

试试touchesBegin和touchesEnded中的代码

-(void)touchesBegin:(NSSet *)touches withEvent:(UIEvent *)event {

 // stop timers here

}   

-(void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event {

 // start timers here again

}