时间标尺的实现，可以点击放大和缩小，精确到秒

详细代码请转 GitHub

touchesMoved的实现方法

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

//    _GreenScreen = NO;

 self.touches= touches;

 self.gestureCount= touches.count;

 if(self.pinchGesture.numberOfTouches== 1&& self.gestureCount== 1) {

 if(_GreenScreen== NO) {

 _GreenScreen= YES;

            [[NSNotificationCenterdefaultCenter] postNotificationName:@"touchesBegin"object:nil];

        }

 //重绘

 UITouch*touch = [touches anyObject];

 self.movePoint= [touch locationInView:self];

 CGFloatoffsetX = self.movePoint.x- self.startPoint.x;

 BOOLisChangeMovePoint;

 if(offsetX < 0) {

 //左滑左移加时间

            isChangeMovePoint = [selfsetTimeWithOffsetIndex:offsetX];

} else{

 //右滑右移减时间

            isChangeMovePoint = [selfsetTimeWithOffsetIndex:offsetX];

        }

 if(isChangeMovePoint) {

 self.startPoint= self.movePoint;

        }

 if(self.returnMoveTime) {

 self.returnMoveTime(self.time);

        }

        [selfreDraw];

    }

}

手指捏合放大标尺的实现代码

效果如图所示：