添加与 inputAccessaryView 相同的工具栏时，UIToolBar 不显示

Question

我有一个 uipickerview ，按下 uibutton 时将填充该视图。 这个uipickerview在uipickerview的顶部有一个uitoolbar控件。 该工具栏上有 uibuttons。它工作正常，直到我执行以下操作。

我想要在 uikeyboard 之上拥有 uittoolbar。所以我添加了 uitoolbar 控件作为 InputAccessoryView。 当我这样做时，uitoolbar 附带了 uikeyboard。这很好。

但是当我点击按钮时，它必须显示带有该工具栏的 uipickerview，并且还需要退出工具栏。

因此，当点击按钮时，我已经放弃了 uikeyboard。 uipickerview 正在显示，但工具栏不可见。

我很长时间以来一直在尝试解决这个问题，但确实面临着艰难的时期。

请告诉我。

- (void)viewDidLoad
{
[super viewDidLoad];

// Create an UIButton
self.btnClick = [UIButton buttonWithType:UIButtonTypeRoundedRect]; 
[self.btnClick addTarget: self action:@selector(showPicker) 
    forControlEvents:UIControlEventTouchUpInside]; 
// Set frame width, height
self.btnClick.frame = CGRectMake(10, 100, 30, 30);    
self.btnClick.contentVerticalAlignment = UIControlContentVerticalAlignmentCenter;
[self.view addSubview:self.btnClick];

self.toolBar = [[[UIToolbar alloc] init]autorelease];
[self.toolBar sizeToFit];
self.toolBar.frame = CGRectMake(0,198, 320, 35);
self.toolBar.barStyle = UIBarStyleBlackTranslucent;

UIImage *image = [UIImage imageNamed:@"orangebuttonsmall.png"];
UIButton *aButton = [UIButton buttonWithType:UIButtonTypeCustom];
aButton.bounds = CGRectMake( 0, 0, image.size.width, 25 );    
[aButton setImage:image forState:UIControlStateNormal];
[aButton addTarget:self action:@selector(pickerNumPadClicked:) forControlEvents:UIControlEventTouchUpInside];    
UIBarButtonItem *numButton = [[[UIBarButtonItem alloc] initWithCustomView:aButton]autorelease];

UIImage *aCenterimage = [UIImage imageNamed:@"button_normal.png"];
UIButton *myCenterBtn = [UIButton buttonWithType:UIButtonTypeCustom];
[myCenterBtn setTitle:@"Poet Names" forState:UIControlStateNormal];
[myCenterBtn setBackgroundImage:aCenterimage forState:UIControlStateNormal];
myCenterBtn.frame = CGRectMake(100, 0,200,25);
myCenterBtn.contentVerticalAlignment = UIControlContentVerticalAlignmentCenter;
myCenterBtn.titleLabel.font = [UIFont systemFontOfSize:10];
myCenterBtn.titleLabel.shadowColor = [UIColor colorWithWhite:0.0 alpha:0.5]; 
myCenterBtn.titleLabel.shadowOffset = CGSizeMake(0, -1);
myCenterBtn.bounds = CGRectInset(myCenterBtn.bounds, -3, 2);
myCenterBtn.titleLabel.font = [UIFont boldSystemFontOfSize:13];
[myCenterBtn setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
[myCenterBtn addTarget:self action:@selector(aCenterBtnClicked:) forControlEvents:UIControlEventTouchUpInside];
UIBarButtonItem *flex = [[[UIBarButtonItem alloc] initWithCustomView:myCenterBtn]autorelease];

UIImage *sendImage = [UIImage imageNamed:@"orangebuttonsmall.png"];
UIButton *Sendbutton = [UIButton buttonWithType:UIButtonTypeCustom];
Sendbutton.frame = CGRectMake(0, 0,50,25);
[Sendbutton setTitle:@"Send" forState:UIControlStateNormal];

[Sendbutton setBackgroundImage:sendImage forState:UIControlStateNormal];
Sendbutton.contentVerticalAlignment = UIControlContentVerticalAlignmentCenter;
Sendbutton.titleLabel.font = [UIFont systemFontOfSize:10];
Sendbutton.titleLabel.shadowColor = [UIColor colorWithWhite:0.0 alpha:0.5]; 
Sendbutton.titleLabel.shadowOffset = CGSizeMake(0, -1);
Sendbutton.bounds = CGRectMake( 0, 0, 50, 25 );   
Sendbutton.titleLabel.font = [UIFont boldSystemFontOfSize:13];

[Sendbutton setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
[Sendbutton addTarget:self action:@selector(pickerDoneClicked:) forControlEvents:UIControlEventTouchUpInside];    
UIBarButtonItem *doneButton = [[[UIBarButtonItem alloc ] initWithCustomView:Sendbutton]autorelease];

[self.toolBar setItems:[NSArray arrayWithObjects:numButton,flex, doneButton, nil]];
[self.view addSubview:self.toolBar];

self.txtView = [[UITextView alloc] init];
self.txtView.layer.cornerRadius = 15;;
self.txtView.clipsToBounds = YES;
self.txtView.frame = CGRectMake(45, 100, 274, 98);
self.txtView.layer.borderWidth = 1.0f;
self.txtView.delegate = self;
self.txtView.scrollEnabled = YES;
self.txtView.backgroundColor = [UIColor whiteColor];
self.txtView.contentInset = UIEdgeInsetsZero;
self.txtView.returnKeyType = UIReturnKeyDone;  // type of the return key
self.txtView.layer.borderColor = [[UIColor blueColor] CGColor];
self.txtView.font = [UIFont fontWithName:@"Helvetica" size:17.0f];
[self.txtView setInputAccessoryView:self.toolBar];
[self.view addSubview:self.txtView];

self.itemsArray = [[[NSArray alloc]initWithObjects:@"William Langland",@"Philip Larkin", @"Dorianne Laux", @"David Lehman", @"Denise Levertov", nil]autorelease];

}

-(void)showPicker
{
[self.txtView resignFirstResponder];

self.pickerView = [[[UIPickerView alloc]init]autorelease];
self.pickerView.showsSelectionIndicator = YES;
self.pickerView.dataSource = self;
self.pickerView.delegate = self;
self.pickerView.tag = 0;
self.pickerView.autoresizingMask = (UIViewAutoresizingFlexibleWidth |
                                        UIViewAutoresizingFlexibleHeight);
[self.pickerView sizeToFit];

self.pickerView.frame = CGRectMake(0, 293 , 320, 15);

self.toolBar.frame = CGRectMake(0,253, 320, 35);

[self.view addSubview:self.toolBar];
[self.view addSubview:self.pickerView]; 
[self.pickerView selectRow:1 inComponent:0 animated:YES];
}

Answer 1

试试这个链接

http ://blog.swierczynski.net/2010/12/how-to-create-uipickerview-with-toolbar-above-it-in-ios/

它展示了如何在 uipicker 上放置一个 inputAccessoryView