以编程方式添加工具栏的栏按钮项

Question

我想以编程方式将按钮而不是栏按钮项添加到工具栏中。我选择它是因为按钮有图像信息黑暗。

那么如何以编程方式完成呢？

Answer 1

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];

Answer 2

若要在UIToolbar中添加此按钮，需要此代码。首先，您可以初始化UIToolbar之后

NSMutableArray *buttons = [[NSMutableArray alloc] initWithCapacity:4];
[buttons addObject: barButtonItem];
[buttons addObject: btnFav];
[buttons addObject: btnGeneralPopOverController];
[buttons addObject: showInfo];   
[mytoolbar setItems:buttons animated:NO];