Question

我真的很难以编程方式创建UIToolBar（没有xib文件）。这就是我想要创建的内容。

但到现在为止，我觉得我没有以正确的方式接近它。我尝试过添加一个barbuttonitem，但我不能创建效果，如png所示。我应该怎么做呢。需要帮助。

编辑：我添加了更大的图片

Answer 1

UIBarButtonItem *spaceItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil];
[self.navigationController.toolbar setBarStyle:UIBarStyleBlackOpaque];
UIBarButtonItem *customItem = [[UIBarButtonItem alloc] initWithTitle:@"toolbar title" style:UIBarButtonItemStylePlain    target:self     action:@selector(onToolbarTapped:)];
NSArray *toolbarItems = [NSArray arrayWithObjects:spaceItem, customItem, spaceItem, nil];

[self setToolbarItems:toolbarItems animated:NO];

Answer 2

使用CGRECT创建工具栏，将其放在您想要的位置

UIToolbar *myToolbar = [[UIToolbar alloc] initWithFrame:CGRectMake(x, y, width, height)];

您可以使用背景图片，标题，文字颜色，背景颜色等来自定义它。

接下来创建按钮

UIBarButtonItem *theButton = [UIBarButtonItem alloc] initWithTitle:@"button title" style:UIBarButtonItemStylePlain    target:self     action:@selector(selector:)];

将其添加到您的工具栏：

NSArray *buttons = [NSArray arrayWithObjects: theButton, nil];
[myToolbar setItems:buttons animated:NO]

将工具栏添加到当前视图

[self.view addSubview:mytoolbar]

只是键入未测试，希望它能帮助

Answer 3

工具栏和按钮具有自定义图像

- (void)viewDidLoad {
    [super viewDidLoad];

    UIToolbar *myToolbar = [[UIToolbar alloc] initWithFrame:CGRectMake(0, self.view.frame.size.height - 44, 320, 44)];
    [myToolbar insertSubview:[[[UIImageView alloc] initWithImage:[UIImage imageNamed:@"toolbar_40.png"]] autorelease] atIndex:0];

    UIBarButtonItem *barButtonDone = [self createImageButtonItemWithNoTitle:@"button_down.png" target:self action:@selector(closeMe:)];
    UIBarButtonItem *barButtonShare = [self createImageButtonItemWithNoTitle:@"button_share.png" target:self action:@selector(actionShareButton:)];
    UIBarButtonItem *barButtonFlexibleGap = [[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil]autorelease];
    myToolbar.items = [NSArray arrayWithObjects:barButtonDone,barButtonFlexibleGap,barButtonShare,nil];

    [self.view addSubview:myToolbar];
    [myToolbar release];
}

-(void)closeMe:(id)sender
{
    NSLog(@"closeMe");
}

-(void)actionShareButton:(id)sender
{   
    NSLog(@"actionShareButton");
}

-(UIBarButtonItem *)createImageButtonItemWithNoTitle:(NSString *)imagePath target:(id)tgt action:(SEL)a
{
    UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];

    UIImage *buttonImage = [[UIImage imageNamed:@"button_slice.png"] stretchableImageWithLeftCapWidth:5 topCapHeight:0];
    UIImage *buttonPressedImage = [[UIImage imageNamed:@"button_slice_over.png"] stretchableImageWithLeftCapWidth:5 topCapHeight:0];

    CGRect buttonFrame = [button frame];
    buttonFrame.size.width = 32;
    buttonFrame.size.height = 32;
    [button setFrame:buttonFrame];

    UIImageView *imageView = [[UIImageView alloc]initWithFrame:CGRectMake(0, 0, 32, 32)];
    imageView.image = [UIImage imageNamed:imagePath];
    [button addSubview:imageView];
    [imageView release];

    [button setBackgroundImage:buttonImage forState:UIControlStateNormal];
    [button setBackgroundImage:buttonPressedImage forState:UIControlStateHighlighted];

    [button addTarget:tgt action:a forControlEvents:UIControlEventTouchUpInside];

    UIBarButtonItem *buttonItem = [[UIBarButtonItem alloc] initWithCustomView:button];

    return [buttonItem autorelease];

}

需要添加这些png文件

toolbar_40.png
button_down.png
button_share.png用于按钮图片
button_slice.png
button_slice_over.png按钮背景（按下）

Answer 4

UIToolbar *toolbar = [UIToolbar new];
toolbar.barStyle = UIBarStyleBlackTranslucent;
toolbar.backgroundColor = [UIColor clearColor];

然后将UIBarButtonItem添加到toolbar。

Answer 5

UIToolbar *myToolbar = [[UIToolbar alloc] initWithFrame:CGRectMake(0, self.view.frame.size.height - 44, 320, 44)];
myToolbar.barStyle = UIBarStyleBlack;

UILabel *myLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, 320, 44)];
myLabel.text = @"Sperre aufheben";
myLabel.textColor = [UIColor whiteColor];
myLabel.textAlignment = UITextAlignmentCenter;
myLabel.backgroundColor = [UIColor clearColor];

[myToolbar  addSubview:myLabel];
[self.view addSubview:myToolbar];

[myLabel release];
[myToolbar release];

Answer 6

似乎更适合导航栏（至少如果你坚持你正在做的精神：IE在屏幕底部添加一个标题）

无论如何我创建了一个简单的测试项目，这就是我为了获得图片所示的功能所做的，你可能需要以不同的方式将它插入到视图/控制器中，但它可以获得你想要的相对简单并且不使用按钮栏

- (void)viewDidLoad {

    [super viewDidLoad];

    UINavigationBar *navBar = [[UINavigationBar alloc] initWithFrame:CGRectMake(0, self.view.frame.size.height - 44, 320, 44)];
    [navBar setBarStyle:UIBarStyleBlack];

    UINavigationItem *title = [[UINavigationItem alloc] initWithTitle:@"Your Title"];
    NSArray *array = [[NSArray alloc] initWithObjects:title, nil];

    [navBar setItems:array];

    [self.view addSubview:navBar];
}

如何以编程方式创建此工具栏

6 个答案: