允许 UIBarButtonItem 触摸顶部和顶部UINavigationBar 底部

发布于 2024-11-16 00:02:55 字数 986 浏览 2 评论 0原文

看一下 Droplr iPhone 应用程序：

在此处输入图像描述

注意 UIBarButtonItem 的样子能够触摸屏幕/导航栏的右侧、左侧、顶部和底部吗？

我怎样才能实现类似的目标？以下是我如何制作一个示例 UIBarButton 并将其设置为正确的项目：

UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
[button setImage:image forState:UIControlStateNormal];    
button.frame= CGRectMake(0.0, 0.0, image.size.width, image.size.height);
[button addTarget:self action:action forControlEvents:UIControlEventTouchUpInside];
UIBarButtonItem *bb = [[[UIBarButtonItem alloc] initWithCustomView:button]autorelease];
[self.navigationItem setRightBarButtonItem:bb animated:YES];

但是，它不右对齐，并且与顶部和底部有相当多的边距。底部。我的图像尺寸是正确的（44 像素），并且看起来它缩小了以适合各种框架。

那么，我该怎么做呢？

编辑：哎呀，顶部/底部间距是我的错。但是，我不知道如何将栏按钮与左/右侧对齐。这就是我的意思：（抱歉按钮丑陋，这只是一个测试）

在此处输入图像描述

我尝试设置图像插入，但它似乎没有做任何事情。

原文

Take a look at the Droplr iPhone app:

enter image description here

Notice how the UIBarButtonItems are able to touch the right, left, top, and bottom of the screen/navigation bar?

How can I achieve something similar? Here's how I make a sample UIBarButton and set it to the right item:

UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
[button setImage:image forState:UIControlStateNormal];    
button.frame= CGRectMake(0.0, 0.0, image.size.width, image.size.height);
[button addTarget:self action:action forControlEvents:UIControlEventTouchUpInside];
UIBarButtonItem *bb = [[[UIBarButtonItem alloc] initWithCustomView:button]autorelease];
[self.navigationItem setRightBarButtonItem:bb animated:YES];

However, it is not right aligned, and has quite a bit of margin from the top & the bottom. My image size is correct (44px), and it looks like it shrinks it to fit a frame of sorts.

So, how can I do this?

Edit: Whoops, the top/bottom spacing was my fault. However, I can't figure out how to align the bar button flush with the left/right side. Here's what I mean: (sorry for the ugly button, it was just a test)

enter image description here

I tried setting the image inserts, but it didn't seem to do anything.

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我很OK 2024-11-23 00:02:55

UIView *rightview = [[UIView alloc] initWithFrame:CGRectMake(0,0,30,30)];



UIButton *searchbutton = [[UIButton alloc] initWithFrame:CGRectMake(2,2,50, 30)];
[searchbutton setImage:[UIImage imageNamed:@"some-pic.png"] forState: UIControlStateNormal];
[rightview addSubview:searchbutton];


UIBarButtonItem *customItem = [[UIBarButtonItem alloc] initWithCustomView:rightview];
self.navigationItem.rightBarButtonItem = customItem;
[customItem release];

我对 rightBarButtonItem 使用了 customView，并且使其右对齐。
只需尝试使用 CGRectMake-Numbers 作为 x 坐标，为了测试我添加了高数字......

UIView *rightview = [[UIView alloc] initWithFrame:CGRectMake(0,0,30,30)];



UIButton *searchbutton = [[UIButton alloc] initWithFrame:CGRectMake(2,2,50, 30)];
[searchbutton setImage:[UIImage imageNamed:@"some-pic.png"] forState: UIControlStateNormal];
[rightview addSubview:searchbutton];


UIBarButtonItem *customItem = [[UIBarButtonItem alloc] initWithCustomView:rightview];
self.navigationItem.rightBarButtonItem = customItem;
[customItem release];

I use a customView for the rightBarButtonItem and I get it right aligned.
Just try a bit with the CGRectMake-Numbers for the x-coordinate, for testing I added to high numbers...

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