- (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];
}
答案 0 :(得分：4)
你绝对不应该使用UIActionSheet来保存UIDatePicker，因为这个功能已被弃用！
子类注释
UIActionSheet不是设计为子类，也不应该添加 查看其层次结构。如果您需要提供更多的表格 自定义比UIActionSheet API提供的，您可以创建 你自己并以模态呈现它 presentViewController：动画：完成：
和
重要提示：UIActionSheet在iOS 8中已弃用。（请注意 UIActionSheetDelegate也已弃用。）创建和管理操作 iOS 8及更高版本中的工作表，而是使用带有的UIAlertController UIAlertControllerStyleActionSheet的preferredStyle。
您可以轻松地创建一个UIView来保存UIDatePicker并根据需要设置视图的动画。如果需要，您甚至可以为其添加UIToolbar。
以下是一个例子：
创建两个属性：
@property (strong, nonatomic) UIDatePicker *theDatePicker;
@property (strong, nonatomic) UIView *pickerView;
创建您的选择器，将其嵌入UIView并显示：
-(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];
}
答案 1 :(得分：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];
}];