@implementation UINavigationBar (UINavigationBarCategory)
- (void)drawRect:(CGRect)rect {
//颜色填充
// UIColor *color = [UIColor redColor];
// CGContextRef context = UIGraphicsGetCurrentContext();
// CGContextSetFillColor(context, CGColorGetComponents( [color CGColor]));
// CGContextFillRect(context, rect);
// self.tintColor = color;
//图片填充
UIColor *color = [UIColor colorWithRed:46.0f/255.0f green:87.0f/255.0f blue:29.0f/255.0f alpha:1.0f];
UIImage *img = [UIImage imageNamed: @"bg.png"];
[img drawInRect:CGRectMake(0, 0, self.frame.size.width, self.frame.size.height)];
self.tintColor = color;
}
@end
图示：
