imageview上面加长按及滑动手势来重置imageView的位置 view里面的resetimage方法重置imageview的tag值 resetHeaderImageTap方法来重置image的手势 _imagesUrlArr=[@[@"http://chenggua.com/imagesUrl/20151204/201512042214246086.png",[UIImage imageNamed:@"22.jpg"],[UIImage imageNamed:@"33.jpg"],@"http://chenggua.com/imagesUrl/20160401/20160401