iOS 背景图片。按钮高亮自定义背景

//UIColor *color1 = [UIColor colorWithPatternImage:[UIImage imageNamed:@"left1.png"]];
        //UIColor *color2 = [UIColor colorWithPatternImage:[UIImage imageNamed:@"left2.png"]];
        //[contactBookBtn setBackgroundColor:color1];
        [contactBookBtn setBackgroundImage:[UIImage imageNamed:@"left1.png"] forState:UIControlStateNormal];
        [contactBookBtn setBackgroundImage:[UIImage imageNamed:@"left2.png"] forState:UIControlStateSelected];
        //[contactBookBtn setTitleColor:color1 forState:UIControlStateNormal];
        //[contactBookBtn setTitleColor:color2 forState:UIControlStateSelected];
        //[cell.selectOrNot setImage:[UIImage imageNamed:@"gou.png"]forState:UIControlStateNormal ] ;