如何在操作表中添加日期選擇器？

Question

- (IBAction) showCatPicker { 

    if (self.catList !=nil) { 
     self.catList=nil; 
     [catList release]; 
    } 
    self.catList = [[NSMutableArray alloc] init]; 

     self.actionSheet = [[UIActionSheet alloc] initWithTitle:nil delegate:nil cancelButtonTitle:nil destructiveButtonTitle:nil otherButtonTitles:nil]; 
    [self.actionSheet setActionSheetStyle:UIActionSheetStyleBlackTranslucent]; 

    CGRect pickerFrame = CGRectMake(0, 40, 0, 0); 
    if(self.catPicker == nil) {  
     self.catPicker = [[UIPickerView alloc] initWithFrame:pickerFrame]; 

     self.catPicker.showsSelectionIndicator = YES; 
     self.catPicker.dataSource = self; 
     self.catPicker.opaque = YES; 
     self.catPicker.multipleTouchEnabled = YES; 
     self.catPicker.userInteractionEnabled = YES; 
     self.catPicker.delegate = self;  
    } 

    [self.actionSheet addSubview:self.catPicker]; 

    UISegmentedControl *closeButton = [[UISegmentedControl alloc] initWithItems:[NSArray arrayWithObject:@"Select"]]; 
    closeButton.momentary = YES; 
    closeButton.frame = CGRectMake(260, 7.0f, 50.0f, 30.0f); 
    closeButton.segmentedControlStyle = UISegmentedControlStyleBar; 
    closeButton.tintColor = [UIColor colorWithRed:19.0/255 green:122.0/255 blue:53.0/255 alpha:1.0]; 
    [closeButton addTarget:self action:@selector(dismissGenderPicker:) forControlEvents:UIControlEventValueChanged]; 

    UISegmentedControl *cancelButton = [[UISegmentedControl alloc] initWithItems:[NSArray arrayWithObject:@"Cancel"]]; 
    cancelButton.momentary = YES; 
    cancelButton.frame = CGRectMake(10, 7.0f, 50.0f, 30.0f); 
    cancelButton.segmentedControlStyle = UISegmentedControlStyleBar; 
    cancelButton.tintColor = [UIColor colorWithRed:19.0/255 green:122.0/255 blue:53.0/255 alpha:1.0]; 
    [cancelButton addTarget:self action:@selector(cancelActionSheet) forControlEvents:UIControlEventValueChanged]; 

    [self.actionSheet addSubview:cancelButton]; 
    [self.actionSheet addSubview:closeButton]; 

    [cancelButton release]; 
    [closeButton release]; 
    [self.actionSheet showInView:self.view];  
    [self.actionSheet setBounds:CGRectMake(0, 0, 320, 485)]; 
    [catPicker reloadComponent:0]; 
} 

Answer 1

self.view.userInteractionEnabled = NO; 
    self.blurView = [[UIView alloc] initWithFrame:[[UIScreen mainScreen] bounds]]; 
    [self.blurView setBackgroundColor:[UIColor lightGrayColor]]; 
    [self.blurView setAlpha:0.3]; 
    [[[UIApplication sharedApplication] delegate].window addSubview:self.blurView]; 

    CGRect pickerFrame = CGRectMake(0, 40, 0, 0); 
    UIDatePicker *pickerView = [[UIDatePicker alloc] initWithFrame:pickerFrame]; 
    pickerView.datePickerMode = UIDatePickerModeDate; 
    [pickerView setBackgroundColor:[UIColor whiteColor]]; 
    [pickerView addTarget:self action:@selector(pickerChanged:) forControlEvents:UIControlEventValueChanged]; 

    __block CGRect frame = CGRectMake(0, [[UIScreen mainScreen] bounds].size.height, [[UIScreen mainScreen] bounds].size.width, 220); 
    self.viewForPicker = [[UIView alloc] initWithFrame:frame]; 
    [self.viewForPicker setBackgroundColor:[UIColor whiteColor]]; 
    [self.viewForPicker addSubview:pickerView]; 
    [[[[UIApplication sharedApplication] delegate] window] addSubview:self.viewForPicker]; 

    UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom]; 
    [button setTitleColor:[UIColor blackColor] forState:UIControlStateNormal]; 
    [button setTitleColor:[UIColor lightGrayColor] forState:UIControlStateHighlighted]; 
    [button setTitle:@"Done" forState:UIControlStateNormal]; 
    [button addTarget:self action:@selector(doneButtonPressed:) forControlEvents:UIControlEventTouchUpInside]; 
    [button setFrame:CGRectMake(250, 15, 60, 30)]; 
    [button.layer setCornerRadius:5.0]; 
    [button.layer setBorderWidth:1.0]; 
    [button.layer setBorderColor:[[IMAppStyle appColor] CGColor]]; 
    [self.viewForPicker addSubview:button]; 
    [self.viewForPicker.layer setCornerRadius:8.0]; 

    float animationDuration = 0.25; 
    [UIView animateWithDuration:animationDuration animations:^{ 
     frame.origin.y -= (180+40+35); 
     [self.viewForPicker setFrame:frame]; 
    }]; 

Answer 2

你絕對不應該使用UIActionSheet舉行一次的UIDatePicker，因爲此功能已經過時！

從Documentation：

子類注

UIActionSheet的目的不是要被繼承，也不應該添加 意見，它的層次結構。如果您需要提供比UIActionSheet API提供的更多 定製的表單，您可以創建自己的 ，並以 的形式呈現presentViewController：animated：completion :.

和

重要：UIActionSheet在iOS的8棄用（請注意， UIActionSheetDelegate也已經過時。）創建和iOS 8的管理行動 張後來，改用UIAlertController用 UIAlertControllerStyleActionSheet的preferredStyle。

你可以很容易地做的是創建一個UIView來保存UIDatePicker並根據需要爲視圖設置動畫。如果需要，你甚至可以添加一個UIToolbar。

下面是一個例子：

創建兩個屬性：

@property (strong, nonatomic) UIDatePicker *theDatePicker; 
@property (strong, nonatomic) UIView *pickerView; 

創建你的選擇器，將其嵌入到UIView和顯示：

-(void) createDatePickerAndShow { 

     UIToolbar *controlToolbar = [[UIToolbar alloc] initWithFrame:CGRectMake(0, 0, pickerView.bounds.size.width, 44)]; 

     [controlToolbar sizeToFit]; 

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

     UIBarButtonItem *setButton = [[UIBarButtonItem alloc] initWithTitle:@"Set" style:UIBarButtonItemStyleDone target:self action:@selector(dismissDateSet)]; 

     UIBarButtonItem *cancelButton = [[UIBarButtonItem alloc] initWithTitle:@"Cancel" style:UIBarButtonItemStyleBordered target:self action:@selector(cancelDateSet)]; 

     [controlToolbar setItems:[NSArray arrayWithObjects:spacer, cancelButton, setButton, nil] animated:NO]; 


     [theDatePicker setFrame:CGRectMake(0, controlToolbar.frame.size.height - 15, theDatePicker.frame.size.width, theDatePicker.frame.size.height)]; 

     if (!pickerView) { 
      pickerView = [[UIView alloc] initWithFrame:theDatePicker.frame]; 
     } else { 
      [pickerView setHidden:NO]; 
     } 


     CGFloat pickerViewYpositionHidden = self.view.frame.size.height + pickerView.frame.size.height; 

     CGFloat pickerViewYposition = self.view.frame.size.height - pickerView.frame.size.height; 

     [pickerView setFrame:CGRectMake(pickerView.frame.origin.x, 
             pickerViewYpositionHidden, 
             pickerView.frame.size.width, 
             pickerView.frame.size.height)]; 
     [pickerView setBackgroundColor:[UIColor whiteColor]]; 
     [pickerView addSubview:controlToolbar]; 
     [pickerView addSubview:theDatePicker]; 
     [theDatePicker setHidden:NO]; 


     [self.view addSubview:pickerView]; 

     [UIView animateWithDuration:0.5f 
         animations:^{ 
          [pickerView setFrame:CGRectMake(pickerView.frame.origin.x, 
                  pickerViewYposition, 
                  pickerView.frame.size.width, 
                  pickerView.frame.size.height)]; 
         } 
         completion:nil]; 

    } 

And to dismiss the DatePicker: 

    -(void) cancelDateSet {  
    CGFloat pickerViewYpositionHidden = self.view.frame.size.height + pickerView.frame.size.height;  

     [UIView animateWithDuration:0.5f 
         animations:^{ 
          [pickerView setFrame:CGRectMake(pickerView.frame.origin.x, 
                  pickerViewYpositionHidden, 
                  pickerView.frame.size.width, 
                  pickerView.frame.size.height)]; 
         } 
         completion:nil]; 
    }