的UIDatePicker弹出后UIButton的是pressed [英] UIDatePicker pop up after UIButton is pressed

问题描述

我怎样才能使一个的UIDatePicker弹出（动画）后，一个UIButton是pressed，然后一旦选择了这个日期再次关闭？这是在iPhone上。

解决方案

  canihaz code？
 

是的，先生。感谢您帮助我拖延。

   - （无效）CHANGEDATE：（*的UIDatePicker）发送{
 的NSLog（@新日期：％@，sender.date）;
} - （无效）removeViews：（ID）{对象
 [[self.view viewWithTag：9] removeFromSuperview];
 [self.view viewWithTag：10] removeFromSuperview]
 [self.view viewWithTag：11] removeFromSuperview]
} - （无效）dismissDatePicker：（ID）发送{
 的CGRect toolbarTargetFrame = CGRectMake（0，self.view.bounds.size.height，320，44）;
 的CGRect datePickerTargetFrame = CGRectMake（0，self.view.bounds.size.height + 44，320，216）;
 [UIView的beginAnimations：@时差背景：无];
 [self.view viewWithTag：9]。阿尔法= 0;
 [self.view viewWithTag：10] .frame = datePickerTargetFrame;
 [self.view viewWithTag：11] .frame = toolbarTargetFrame;
 [UIView的setAnimationDelegate：个体经营];
 [UIView的setAnimationDidStopSelector：@selector（removeViews :)]。
 [UIView的commitAnimations];
} - （IBAction为）callDP：（ID）发送{
 如果（[self.view viewWithTag：9]）{
  返回;
 }
 的CGRect toolbarTargetFrame = CGRectMake（0，self.view.bounds.size.height-216-44，320，44）;
 的CGRect datePickerTargetFrame = CGRectMake（0，self.view.bounds.size.height-216，320，216）; UIView的* darkView = [[[UIView的页头] initWithFrame：方法self.view.bounds]自动释放];
 darkView.alpha = 0;
 darkView.backgroundColor =的UIColor blackColor]
 darkView.tag = 9;
 UITapGestureRecognizer * tapGesture = [[[UITapGestureRecognizer页头] initWithTarget：自我行动：@选择（dismissDatePicker :)]自动释放];
 [darkView addGestureRecognizer：tapGesture];
 [self.view addSubview：darkView]; *的UIDatePicker =日期选择器[[[的UIDatePicker的alloc] initWithFrame：方法CGRectMake（0，self.view.bounds.size.height + 44，320，216）]自动释放];
 datePicker.tag = 10;
 [日期选择器addTarget：自我行动：@选择（CHANGEDATE :) forControlEvents：UIControlEventValueChanged];
 [self.view addSubview：日期选择器]; UIToolbar *工具栏= [[[UIToolbar页头] initWithFrame：方法CGRectMake（0，self.view.bounds.size.height，320，44）自动释放];
 toolBar.tag = 11;
 toolBar.barStyle = UIBarStyleBlackTranslucent;
 *的UIBarButtonItem间隔= [[[的UIBarButtonItem页头] initWithBarButtonSystemItem：UIBarButtonSystemItemFlexibleSpace目标：无行动：无]自动释放];
 *的UIBarButtonItem = doneButton [[[的UIBarButtonItem页头] initWithBarButtonSystemItem：UIBarButtonSystemItemDone目标：自我行动：@选择（dismissDatePicker :)]自动释放];
 [工具栏setItems：[NSArray的arrayWithObjects：间隔，doneButton，无]];
 [self.view addSubview：工具栏]。 [UIView的beginAnimations：@MoveIn背景：无];
 toolBar.frame = toolbarTargetFrame;
 datePicker.frame = datePickerTargetFrame;
 darkView.alpha = 0.5;
 [UIView的commitAnimations];
}
 

How can I make a UIDatePicker pop up (animated) after a UIButton is pressed, and then close down again once the date is selected? This is on the iPhone.

解决方案

canihazcode?

Yes, sir. Thanks for helping me procrastinating.

- (void)changeDate:(UIDatePicker *)sender {
 NSLog(@"New Date: %@", sender.date);
}

- (void)removeViews:(id)object {
 [[self.view viewWithTag:9] removeFromSuperview];
 [[self.view viewWithTag:10] removeFromSuperview];
 [[self.view viewWithTag:11] removeFromSuperview];
}

- (void)dismissDatePicker:(id)sender {
 CGRect toolbarTargetFrame = CGRectMake(0, self.view.bounds.size.height, 320, 44);
 CGRect datePickerTargetFrame = CGRectMake(0, self.view.bounds.size.height+44, 320, 216);
 [UIView beginAnimations:@"MoveOut" context:nil];
 [self.view viewWithTag:9].alpha = 0;
 [self.view viewWithTag:10].frame = datePickerTargetFrame;
 [self.view viewWithTag:11].frame = toolbarTargetFrame;
 [UIView setAnimationDelegate:self];
 [UIView setAnimationDidStopSelector:@selector(removeViews:)];
 [UIView commitAnimations];
}

- (IBAction)callDP:(id)sender {
 if ([self.view viewWithTag:9]) {
  return;
 }
 CGRect toolbarTargetFrame = CGRectMake(0, self.view.bounds.size.height-216-44, 320, 44);
 CGRect datePickerTargetFrame = CGRectMake(0, self.view.bounds.size.height-216, 320, 216);

 UIView *darkView = [[[UIView alloc] initWithFrame:self.view.bounds] autorelease];
 darkView.alpha = 0;
 darkView.backgroundColor = [UIColor blackColor];
 darkView.tag = 9;
 UITapGestureRecognizer *tapGesture = [[[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(dismissDatePicker:)] autorelease];
 [darkView addGestureRecognizer:tapGesture];
 [self.view addSubview:darkView];

 UIDatePicker *datePicker = [[[UIDatePicker alloc] initWithFrame:CGRectMake(0, self.view.bounds.size.height+44, 320, 216)] autorelease];
 datePicker.tag = 10;
 [datePicker addTarget:self action:@selector(changeDate:) forControlEvents:UIControlEventValueChanged];
 [self.view addSubview:datePicker];

 UIToolbar *toolBar = [[[UIToolbar alloc] initWithFrame:CGRectMake(0, self.view.bounds.size.height, 320, 44)] autorelease];
 toolBar.tag = 11;
 toolBar.barStyle = UIBarStyleBlackTranslucent;
 UIBarButtonItem *spacer = [[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil] autorelease];
 UIBarButtonItem *doneButton = [[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:self action:@selector(dismissDatePicker:)] autorelease];
 [toolBar setItems:[NSArray arrayWithObjects:spacer, doneButton, nil]];
 [self.view addSubview:toolBar];

 [UIView beginAnimations:@"MoveIn" context:nil];
 toolBar.frame = toolbarTargetFrame;
 datePicker.frame = datePickerTargetFrame;
 darkView.alpha = 0.5;
 [UIView commitAnimations];
}

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