Iphone 工具栏按钮项以编程方式添加工具栏

我想以编程方式将按钮而不是条形按钮项添加到工具栏中。我之所以选择它，是因为按钮上有图像信息

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那么这是如何通过编程实现的呢？

要在

UIToolbar

中添加此按钮，您需要此代码。

UIImage* image = [UIImage imageNamed:defaultImage];
CGRect frame = CGRectMake(0, 0, image.size.width, image.size.height);
UIButton* button = [[UIButton alloc] initWithFrame:frame];
[button setTitle:@"Display" forState:UIControlStateNormal & UIControlStateHighlighted];
[button setImage:image forState:UIControlStateNormal];
[button setImage:[UIImage imageNamed:selectedImage] forState:UIControlStateSelected];
[button addTarget:self action:@selector(button_Clicked:) forControlEvents:UIControlEventTouchUpInside];
UIBarButtonItem *barButton = [[UIBarButtonItem alloc] initWithCustomView:button];

首先，您可以在此之后初始化

UIToolbar

NSMutableArray *buttons = [[NSMutableArray alloc] initWithCapacity:4];

[buttons addObject: barButtonItem];
[buttons addObject: btnFav];
[buttons addObject: btnGeneralPopOverController];
[buttons addObject: showInfo];   

[mytoolbar setItems:buttons animated:NO];

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您可以在工具栏上添加视图，然后在该工具栏上添加一个可用的按钮。首先尝试使用工具栏上的“直接添加”按钮，如果没有，则尝试使用视图将bar button项添加到工具栏self。forwardButton=[[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemEmplay目标：nil操作：nil]；NSArray*toolBarItems=[[NSArray alloc]initWithObjects:forwardButton，nil]；//设置toolar项[self.toolBar设置项：toolBar项]；//将项目添加到工具栏[自添加子视图：self.toolbar]；如果要在barbuttonitems UIBarButtonItem*spaceItem=[[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemFlexibleSpace目标：nil操作：NULL]之间添加空格，请进行编辑；