自定义导航栏

自定义右侧按钮

 UIButton * rightBtn = [UIButtonbuttonWithType:UIButtonTypeRoundedRect];
    rightBtn.frame =CGRectMake(0,0, 40,40);
    rightBtn.backgroundColor = [UIColororangeColor];
    [rightBtn addTarget:selfaction:@selector(rightButtonClick)forControlEvents:UIControlEventTouchUpInside];
    UIBarButtonItem * rightItem = [[UIBarButtonItemalloc] initWithCustomView:rightBtn];
    self.navigationItem.rightBarButtonItem = rightItem

自定义中间视图

UIView * centerView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 100, 30)];centerView.backgroundColor = [UIColor clearColor];self.navigationItem.titleView = centerView;