如何将分段控件添加到 uitoolbar答案

【问题标题】：How to add segmented control to uitoolbar如何将分段控件添加到 uitoolbar
【发布时间】：2013-06-05 08:00:23
【问题描述】：

我有一个带有 UIBarButtonItems 的 UIToolbar。我想给它添加分段控件。

//Add UIToolbar

toolbar = [[UIToolbar alloc] initWithFrame:CGRectMake(0, 425, 320, 35)];

toolbar.barStyle = UIBarStyleBlackOpaque;

[self.view addSubview:toolbar];

//Add Gallery Button

UIButton *galleryButton = [UIButton buttonWithType:UIButtonTypeCustom];

[galleryButton addTarget:self action:@selector(ScrollView:) forControlEvents:UIControlEventTouchUpInside];

galleryButton.frame = CGRectMake(0, 0, 25, 25);

UIImage *ime = [UIImage imageNamed:@"_gallery.png"];

[galleryButton setImage:ime forState:UIControlStateNormal];

UIBarButtonItem *gallerybutton = [[UIBarButtonItem alloc] initWithCustomView:galleryButton];


 //Add play/Pause button 

_playButton = [UIButton buttonWithType:UIButtonTypeCustom];

[_playButton addTarget:self action:@selector(playpauseAction:) forControlEvents:UIControlEventTouchUpInside];

_playButton.frame = CGRectMake(0, 0, 25, 25);

[_playButton setImage:[UIImage imageNamed:@"1play.png"] forState:UIControlStateNormal];

[_playButton setImage:[UIImage imageNamed:@"audiopause.png"] forState:UIControlStateSelected];

 UIBarButtonItem *play = [[UIBarButtonItem alloc] initWithCustomView:self.playButton];

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

//Add buttons to the array

NSArray *toolbarItems = [NSArray arrayWithObjects:  play, flexItem, gallerybutton, nil];

 [toolbar setItems:toolbarItems];

有没有办法给 UIToolbar 上现有的 uibarbuttonitems 添加分段控件。

【问题讨论】：

标签： iphone objective-c ios6 uitoolbar uisegmentedcontrol

【解决方案1】：

使用此代码：

NSArray *segItemsArray = [NSArray arrayWithObjects: @"Play", @"Pause", nil];
UISegmentedControl *segmentedControl = [[UISegmentedControl alloc] initWithItems:segItemsArray];
segmentedControl.frame = CGRectMake(0, 0, 200, 30);
segmentedControl.segmentedControlStyle = UISegmentedControlStyleBar;
segmentedControl.selectedSegmentIndex = 1;
UIBarButtonItem *segmentedControlButtonItem = [[UIBarButtonItem alloc] initWithCustomView:(UIView *)segmentedControl];
UIBarButtonItem *flexibleSpace = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil];
NSArray *barArray = [NSArray arrayWithObjects: flexibleSpace, segmentedControlButtonItem, flexibleSpace, nil];

[self setToolbarItems:barArray];

【讨论】：

【解决方案2】：

在 Swift 3 中

    let toolbarControl = UIToolbar(frame: CGRect(x: 0, y: 0, width: self.view.frame.width, height: 44))
    toolbarControl.delegate = self
    let segmentControl = UISegmentedControl(items: ["First", "Second"])
    segmentControl.selectedSegmentIndex = 0
    let barItem = UIBarButtonItem(customView: segmentControl)
    let barSpace = UIBarButtonItem(barButtonSystemItem: .FlexibleSpace, target: nil, action: nil)
    let barObjects: Array<UIBarButtonItem> = [barSpace,barItem,barSpace,nil]
    self.toolbarControl.items = barObjects
    self.view.addSubview(toolbarControl)

【讨论】：

【解决方案3】：

    NSArray *segItemsArray = [NSArray arrayWithObjects: @"Start", @"Stop", nil];
    UISegmentedControl *segmentedControl = [[UISegmentedControl alloc] initWithItems:segItemsArray]; 
    segmentedControl.frame = CGRectMake(50, 50, 200, 30); 
    segmentedControl.segmentedControlStyle = UISegmentedControlStyleBar;    
    segmentedControl.selectedSegmentIndex = 1; 

UIBarButtonItem *segmentedControlButtonItem = [[UIBarButtonItem alloc] initWithCustomView:(UIView *)segmentedControl]; 
UIBarButtonItem *flexibleSpace = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil]; 
NSArray *barArray = [NSArray arrayWithObjects: flexibleSpace, segmentedControlButtonItem, flexibleSpace, nil];

    [self setToolbarItems:barArray];

【讨论】：