给view 添加事件

  

    //绑定图片点击事件

    UITapGestureRecognizer *g=[[UITapGestureRecognizeralloc]initWithTarget:selfaction:@selector(btnNext:)];

    g.numberOfTapsRequired = 1;

    g.numberOfTouchesRequired=1;

    

    [viewBottomaddGestureRecognizer:g];