如何取消UIBarbuttonItem setTitle闪亮效果

Question

与图像显示一样，我使用UIBarbuttonItem作为rightBarButtonItem，我想要做的只是在选择图片或取消选择图片时更改rightBarButton的标题，所以我使用了这样的代码：

[self.rightBarButton setTitle:[NSString stringWithFormat:@"完成（%@/%@）",@(_selectedAssets.count),@(self.maxPicturesNum)]];

但是当文本改变时，按钮会显示shin，我尝试使用UIButton而不是UIBarButtonItem，而且shin效果确实消失了，但是UIButton会接近右边界，你能帮帮我吗？

Answer 1

您可以创建UIButton并将其分配给rightBarButton

UIButton *rightButton = [[UIButton alloc] initWithFrame:someFrame];
[rightButton setBackgroundImage:someImage forState:UIControlStateNormal];
[rightButton addTarget:self action:@selector(back:) forControlEvents:UIControlEventTouchUpInside];
rightButton.titleLabel.text = [NSString stringWithFormat:@"完成（%@/%@）",@(_selectedAssets.count),@(self.maxPicturesNum)];
rightButton.titleLabel.font = someFont;
UIBarButtonItem *rightBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:rightButton];
self.rightBarButton = rightBarButtonItem;

在更新标签时使用rightButton.titleLabel.text

对于调整标签，请使用：

- (void)setTitlePositionAdjustment:(UIOffset)adjustment
                 forBarMetrics:(UIBarMetrics)barMetrics

Answer 2

最后，我喜欢这个：

- (void)loadRightButtonItem{
UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
button.frame = CGRectMake(30, 0, 120, 40);
button.contentHorizontalAlignment = UIControlContentHorizontalAlignmentRight;
[button setTitle:@"完成（0/9）" forState:UIControlStateNormal];
button.tintColor = [UIColor whiteColor];
[button setTitleShadowColor:[UIColor whiteColor] forState:UIControlStateHighlighted];
//    [button setTitleColor:[self.buttonFolder titleColorForState:UIControlStateHighlighted] forState:UIControlStateHighlighted];
[button addTarget:self action:@selector(onFinishClicked:) forControlEvents:UIControlEventTouchUpInside];

UIView *view = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 135, 40)];
UIBarButtonItem *item = [[UIBarButtonItem alloc] initWithCustomView:view];

[view addSubview:button];
self.navigationItem.rightBarButtonItem = item;
_rightBarButton = button;
}

取消胫骨效果。

感谢@ RoHaN，你的想法给我带来了很大的启发。