如何在工具栏中心显示按钮？ [英] How to show button in center of toolbar?

问题描述

我想在工具栏的顶部和中心显示按钮。我设置了UIBarButtonItem的图像，但它没有给出如下图所示的预期结果。

I want to show button on top of and in center of Toolbar. I set the image of UIBarButtonItem but it does not give desired result as given in below image.

我可以添加菜单并找到我

I am able to add Menu and Locate Me

但无法添加请求按钮，如图所示。

请求BUtton是一张图片，当我设置时它被拉伸的UIBarButtonItem图像

Request BUtton is an image and when I set it the UIBarButtonItem image it gets stretched

请帮助

这就是我所做的。

This is what I have done.

但是我想做这个。正如您可以看到，在我的解决方案中，请求按钮位于工具栏下方，在下面的图片请求按钮位于顶部。

But I want to do this. as You can see that in my solution Request button is under toolbar and in the below pic Request button is on top.

推荐答案

只需将 UIBarButtonItem 与 FlexibleSpace 添加到这两个按钮的两侧，如下图所示。 。

just add UIBarButtonItem with FlexibleSpace to both side of these two button like bellow..

UIBarButtonItem *flexibleSpace =  [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil];

查看带有两个按钮的所有代码..

See all code with two buttons..

UIBarButtonItem *flexibleSpace =  [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil];

UIBarButtonItem *locateMe = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonItemStylePlain target:self action:@selector(locateMe:)];

UIBarButtonItem *request = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonItemStylePlain target:self action:@selector(request:)];

UIBarButtonItem *menu = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonItemStylePlain target:self action:@selector(menu:)];

NSArray *toolbarItems = [NSArray arrayWithObjects:locateMe,flexibleSpace,request , flexibleSpace, menu];

[toolBar setItems:toolbarItems animated:NO];

从 XIB 您也可以设置此 UIBarButtonSystemItemFlexibleSpace 如下图所示..

From XIB you can also set this UIBarButtonSystemItemFlexibleSpace like in bellow image..

更新：您想在UIToolBar上添加带有该图像的请求按钮然后在 UIView UIToolBar 之后再带上 UIImageView 和按钮c>像bellow ..

UPDATE: you want to Add that request button with that image on UIToolBar then just bring that UIImageView and button after add UIToolBar on the UIView like bellow..

[self.view bringSubviewToFront:imgView];
[self.view bringSubviewToFront:btnRequest];

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