平铺文理+拉伸按钮图片

 UIColor *circleColorPattern = [UIColor colorWithPatternImage://平铺
                                   [UIImage imageNamed:@"node.png"]];
    [self.view setBackgroundColor:circleColorPattern];
    UIImage *backgroundImage = [[UIImage imageNamed:@"btnImage.jpg"]//拉伸
                                      resizableImageWithCapInsets:UIEdgeInsetsMake(0,13,0,13)];
    [self.m_Btn setBackgroundImage:backgroundImage
                      forState:UIControlStateNormal];