@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 p_w_picpathNamed: @"bg.png"];  [img drawInRect:CGRectMake(0, 0, self.frame.size.width, self.frame.size.height)];  self.tintColor = color; } @end