UIPickerView點擊滾動和自定義行UIViews

您可以通過滑動和點擊選擇帶下方或上方的項目來滾動UIPickerView。UIPickerView點擊滾動和自定義行UIViews

您可以通過爲每行指定NSString作爲標題或可重用UIViews來填充UIPickerView。

我注意到當我從提供字符串切換到提供視圖時，點擊滾動不再有效。這是預期的行爲。我的觀點應該將某些觸摸事件轉發給UIPickerView嗎？

感謝

編輯：

下面是我實現的一個代碼示例：

// Creating the picker 
screenPicker_ = [UIPickerView new]; 
screenPicker_.showsSelectionIndicator = YES; 
screenPicker_.delegate = delegate_; 
screenPicker_.dataSource = delegate_; 
[self addSubview:screenPicker_]; 
[screenPicker_ release]; 

// Row view creation delegate 
- (UIView *)pickerView:(UIPickerView *)pickerView viewForRow:(NSInteger)row forComponent:(NSInteger)component reusingView:(UIView *)view 
{ 
    PickerRowView *pickerRowView = (PickerRowView*)view; 
    if(view == nil) 
    { 
     pickerRowView = [[PickerRowView alloc] initWithFrame:CGRectMake(0, 0, pickerView.frame.size.width, PICKER_ROW_HEIGHT)]; 
    } 

    [pickerRowView SetTitle:@"some title"]; 

    return pickerRowView; 
} 

// initailizer of the PickerRowView class (an UIView subclass) 
- (id)initWithFrame:(CGRect)frame 
{ 
    if ((self = [super initWithFrame:frame])) 
    { 
     CGFloat titleHeight = frame.size.height * CONTENT_TO_FRAME_RATIO; 
     title_ = [[UILabel alloc] initWithFrame:CGRectMake(TITLE_X, (frame.size.height - titleHeight)/2, frame.size.width, titleHeight)]; 
     [title_ setFont:[UIFont fontWithName:@"StainlessExt-Light" size:titleHeight]]; 
     title_.backgroundColor = [UIColor clearColor]; 
     [self addSubview:title_]; 
     [title_ release]; 

     self.userInteractionEnabled = NO; 
    } 
    return self; 
}

來源

2010-08-26 Mihai Damian

設置userInteractionEnabled屬性NO你行的觀點必須解決您的問題。

來源

2010-08-27 22:47:23 Vladimir

謝謝，這樣的作品，但現在點擊行簡要藍色高亮顯示... – 2010-08-30 06:36:22

在你PickerRowView類，定義如下方法：

- (void)didMoveToSuperview { 
if ([[self superview] respondsToSelector:@selector(setShowSelection:)]) 
{ 
    [[self superview] performSelector:@selector(setShowSelection:) withObject:NO]; 
} }

，並應擺脫亮點

來源

2010-10-14 07:57:21 Rod

UIPickerView點擊滾動和自定義行UIViews

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