set the background image on UINavigationBar and also set an image in fix coordinate on UINavigationBar

UINavigationBar *nav=[[UINavigationBar alloc]initWithFrame:CGRectMake(0, 0, 320, 44)];

[self.view addSubview:nav];

[[UINavigationBar appearance] setBackgroundImage:[UIImage imageNamed:@"manoj.png"]forBarMetrics:UIBarMetricsDefault];

UIImageView *img=[[UIImageView alloc]initWithFrame:CGRectMake(200, 5, 100, 35)];

img.backgroundColor=[UIColor clearColor];

img.image=[UIImage imageNamed:@"kanishka.png"];

[nav addSubview:img];