定制UIPickerView (背景和间距)开发者社区

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- (void)viewDidLoad
    [super viewDidLoad];
    // Do any additional setup after loading the view from its nib.
    arrayDays = [[NSMutableArray alloc] init];
    [arrayDays addObject:@"ONSDAG"];
    [arrayDays addObject:@"TORSDAG"];
    [arrayDays addObject:@"FREDAG"];
    [arrayDays addObject:@"LØRDAG"];
    arrayDates = [[NSMutableArray alloc] init];
    [arrayDates addObject:@"29. JUNI"];
    [arrayDates addObject:@"30. JUNI"];
    [arrayDates addObject:@"1. JULI"];
    [arrayDates addObject:@"2. JULI"];
    pickerViewDay = [[UIPickerView alloc] initWithFrame:CGRectZero];
    [pickerViewDay setDelegate:self];
    [pickerViewDay setShowsSelectionIndicator:NO];
    CGAffineTransform rotate = CGAffineTransformMakeRotation(-M_PI/2);
    rotate = CGAffineTransformScale(rotate, 0.25, 2.0);
    [pickerViewDay setTransform:rotate];
    [pickerViewDay setCenter:CGPointMake(self.view.frame.size.width/2, (pickerViewDay.frame.size.height/2)-3)];
    [self.view addSubview:pickerViewDay];
    // Adding selection indicator to pickerview
    UIImage *selectorImage = [UIImage imageNamed:@"DayPickerView_SelectionIndicator.png"];
    UIView *customSelector = [[UIImageView alloc] initWithImage:selectorImage];
    [customSelector setFrame:CGRectMake(0, 0, 120, 74)];
    [customSelector setCenter:CGPointMake(self.view.frame.size.width/2, customSelector.frame.size.height/2)];
    [self.view addSubview:customSelector];
    [customSelector release];
    // Adding background to pickerview
    UIImage *backgroundImage = [UIImage imageNamed:@"DayPickerView_Background.png"];
    UIView *custombackground = [[UIImageView alloc] initWithImage:backgroundImage];
    [custombackground setFrame:CGRectMake(0, 0, 320, 74)];
    // [self.view addSubview:custombackground];
    [custombackground release];
- (UIView *)pickerView:(UIPickerView *)pickerView viewForRow:(NSInteger)row forComponent:(NSInteger)component reusingView:(UIView *)view {
    UIView *viewRow = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 150, 80)];
    CGAffineTransform rotate = CGAffineTransformMakeRotation(3.14/2);
    rotate = CGAffineTransformScale(rotate, 0.25, 2.0);
    // Date
    CGRect rectDate = CGRectMake(30, 0, 150, 80);
    UILabel *date = [[UILabel alloc]initWithFrame:rectDate];
    [date setTransform:rotate];
    [date setText:[arrayDates objectAtIndex:row]];
    [date setFont:[UIFont fontWithName:@"Arial-BoldMT" size:37.0]];
    [date setShadowColor:[UIColor whiteColor]];
    [date setShadowOffset:CGSizeMake(0, -1)];
    [date setTextAlignment:UITextAlignmentCenter];
    [date setBackgroundColor:[UIColor clearColor]];
    [date setClipsToBounds:YES];
    [viewRow addSubview:date];
    // Day
    CGRect rectDay = CGRectMake(-30, 0, 150, 80);
    UILabel *day = [[UILabel alloc]initWithFrame:rectDay];
    [day setTransform:rotate];
    [day setText:[arrayDays objectAtIndex:row]];
    [day setFont:[UIFont fontWithName:@"Arial-BoldMT" size:21.0]];
    [day setTextColor:[UIColor colorWithRed:0.35 green:0.35 blue:0.35 alpha:1]];
    [day setTextAlignment:UITextAlignmentCenter];
    [day setBackgroundColor:[UIColor clearColor]];
    [day setClipsToBounds:YES];
    [viewRow addSubview:day];
    return viewRow;
- (NSString *)pickerView:(UIPickerView *)thePickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component {
    return [arrayDays objectAtIndex:row];
- (NSInteger)pickerView:(UIPickerView *)thePickerView numberOfRowsInComponent:(NSInteger)component {
    return [arrayDays count];
}

- (CGFloat)pickerView:(UIPickerView *)pickerView rowHeightForComponent:(NSInteger)component

@implementation UIPickerView(Extension)
-(void)drawRect:(CGRect)rect
    NSArray* subviews = [self subviews];
    for(UIView* view in subviews)
        if([view isKindOfClass:[UITableView class]])
            view.backgroundColor = appColor;

问 定制UIPickerView (背景和间距)

回答 4

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