碰撞计算，NSTimeInterval的使用, touchesEnded, touchesBegin

//注意此处坐标从数组提取＊＊＊＊＊＊＊＊＊＊
CGRect tappingArea=[[tapArea_Paigu objectAtIndex:i] CGRectValue];


//CGRectIntersectsRect bool型函数 判断 tappingArea是否在touchArea内。。
CGRectIntersectsRect(touchArea,tappingArea)；

　　

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
    UITouch *touch = [touches anyObject];　　
    NSLog(@"touch 1:%f", touch.timestamp);　　
    m_pointBegin = [touch locationInView:self.view];　　//热点位置
    m_timeBegin = touch.timestamp;　　//触发时间
    
    NSLog(@"locationInView:%@", NSStringFromCGPoint([touch locationInView:self.view]));
}

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

- (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event
{
    UITouch *touch = [touches anyObject];
    NSLog(@"touch 2:%f", touch.timestamp);
    
    NSLog(@"locationInView 2:%@", NSStringFromCGPoint([touch previousLocationInView:self.view]));
    
    NSLog(@"locationInView 3:%@", NSStringFromCGPoint([touch locationInView:self.view]));
    CGPoint pointEnd = [touch locationInView:self.view];
    
    //judge if touch is enable
    if (m_pointBegin.y <= 320)
    {
　　　　　　//勾股定理，计算类似(x3,y3和x5,y4)
        CGFloat kDistance = sqrt((pointEnd.x - m_pointBegin.x)*(pointEnd.x - m_pointBegin.x) +
                                 (pointEnd.y - m_pointBegin.y)*(pointEnd.y - m_pointBegin.y));
        
        if (kDistance <= 10)
        {
            //judge if time is validate
            NSTimeInterval endTime = touch.timestamp;
            NSTimeInterval timeInterval = endTime - m_timeBegin;
            NSLog(@"timeInterval:%f", timeInterval);
            if (timeInterval >= 0.5)
            {
                if(m_bIsEnableAlarmAction)
                {
                    NSLog(@"longPressStatus");
                    [CommonReq AllAlarmTime];
                    m_bIsReqReadTemperature = YES;
                    if(m_viewScenarWait.superview != nil)
                    {
                        [self removeScenarioWaitView];
                    }
                    [self createScenarioWaitView];
                    [self showScenarioWaitView];
                    
                    if ([m_timerScenarioInfo isValid])
                    {
                        [m_timerScenarioInfo invalidate];
                        m_timerScenarioInfo = nil;
                        m_nTimeout = 0;
                    }
                    
                    [self removeScenarioView];
                    
                    self.m_timerScenarioInfo = [NSTimer scheduledTimerWithTimeInterval:1.0
                                                                                target:self
                                                                              selector:@selector(requestTimeout)
                                                                              userInfo:nil repeats:YES];
                    
                    [ABUtil addTimeToCurrentRunLoop:m_timerScenarioInfo];
                }
            }
        }
    }
}