addPickerView

AddPickerView

    BOOL _isShowingPicker;
    NSArray *_sizeTexts;
    NSInteger _sizeIndex;
@property (strong,nonatomic) UIView *pickerMainView;
@property (strong,nonatomic) UIPickerView *pickerView;
@property (strong,nonatomic) UIBarButtonItem *pickerBarButtonItem;


- (void)initPickerView
{
    UIView *pickerMainView = [[UIView alloc] initWithFrame:CGRectMake(0, [PLUtil displaySize].height, 320, 44+216)];
    UIWindow *window = ((JOAppDelegate*)([UIApplication sharedApplication].delegate)).window;
    [window addSubview:pickerMainView];
    self.pickerMainView = pickerMainView;
    
    UIToolbar *toolBar = [[UIToolbar alloc] initWithFrame:CGRectMake(0, 0, 320, 44)];
    
    UIBarButtonItem *flexibleSpace = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil];
    UIBarButtonItem *pickerBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:@"閉じる" style:UIBarButtonItemStylePlain target:self action:@selector(pushedPickerBarButton:)];
    self.pickerBarButtonItem = pickerBarButtonItem;
    NSArray *items = @[flexibleSpace,pickerBarButtonItem];
    [toolBar setItems:items];
    [pickerMainView addSubview:toolBar];
    
    UIPickerView *pickerView = [[UIPickerView alloc] initWithFrame:CGRectMake(0, 44, 320, 216)];
    pickerView.delegate = self;
    pickerView.dataSource = self;
    [pickerMainView addSubview:pickerView];
    self.pickerView = pickerView;
    
    _sizeTexts = @[@"小",@"中",@"大"];
}

- (void)togglePicker
{
    CGRect frame = _pickerMainView.frame;
    [UIView animateWithDuration:0.25f
                          delay:0.0f
                        options:UIViewAnimationOptionCurveEaseOut
                     animations:^{
                         if (_isShowingPicker) {
                             _pickerMainView.frame = CGRectMake(0, [PLUtil displaySize].height, frame.size.width, frame.size.height);
                         }else{
                             _pickerMainView.frame = CGRectMake(0, [PLUtil displaySize].height-214-44, frame.size.width, frame.size.height);
                         }
                     }
                     completion:^(BOOL finished) {
                         _isShowingPicker = !_isShowingPicker;
                     }];
}