导航栏添加多个右按钮且图片在上文字在下

//自定义导航栏多个右按钮

UIButton* myCollectionButton = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, 45, 35)];

[myCollectionButton setTitle:@"我的收藏" forState:UIControlStateNormal];

myCollectionButton.titleLabel.font = [UIFont systemFontOfSize:11];

[myCollectionButton addTarget:self action:@selector(myCollectionAction:) forControlEvents:UIControlEventTouchUpInside];

UIImageView* myCollectionImage = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"我的收藏"]];

myCollectionImage.frame = CGRectMake(myCollectionButton.frame.size.width / 4, 0, 20, 20);

[myCollectionButton addSubview:myCollectionImage];

//调用方法

[self initButton:myCollectionButton];

UIBarButtonItem* checkBar = [[UIBarButtonItem alloc] initWithCustomView:checkButton];

UIBarButtonItem* secrchBar = [[UIBarButtonItem alloc] initWithCustomView:secrchButton];

UIBarButtonItem* myCollectionBar = [[UIBarButtonItem alloc] initWithCustomView:myCollectionButton];

//添加多个按钮（我只写了一个按钮，其余两个按钮相同设置）

self.navigationItem.rightBarButtonItems = @[secrchBar, myCollectionBar, checkBar];

self.navigationItem.rightBarButtonItem.tintColor = [UIColor whiteColor];

//使其按钮 文字与图片垂直显示

- (void)initButton:(UIButton*)button {

button.contentHorizontalAlignment = UIControlContentHorizontalAlignmentCenter;//使图片和文字水平居中显示

button.contentVerticalAlignment = UIControlContentVerticalAlignmentBottom;//使按钮靠下显示

[button setTitleEdgeInsets:UIEdgeInsetsMake(button.imageView.frame.size.height ,-button.imageView.frame.size.width, 0.0,0.0)];//文字距离上边框的距离增加imageView的高度，距离左边框减少imageView的宽度，距离下边框和右边框距离不变

[button setImageEdgeInsets:UIEdgeInsetsMake(0.0, 0.0,0.0, -button.titleLabel.bounds.size.width)];//图片距离右边框距离减少图片的宽度，其它不边

}