iphone - UIDatePicker 仅显示年份

Question

有没有办法让 UIDatePicker 只显示年份？

Answer 1

我有一些我正要删除的代码，但如果它在某个地方在线，则该片段会更好。这并不惊人，但可以搜索到!

用于创建自 1960 年以来所有年份数组的 Objective-C 代码。非常适合输入到 UIPicker

//Get Current Year into i2
NSDateFormatter* formatter = [[[NSDateFormatter alloc] init]autorelease];
[formatter setDateFormat:@"yyyy"];
int i2  = [[formatter stringFromDate:[NSDate date]] intValue];


//Create Years Array from 1960 to This year
years = [[NSMutableArray alloc] init];
for (int i=1960; i<=i2; i++) {
    [years addObject:[NSString stringWithFormat:@"%d",i]];
}

UIPickerView 数据源和委托(delegate)方法:

- (NSInteger)numberOfComponentsInPickerView: (UIPickerView*)thePickerView {
    return 1;
}

- (NSInteger)pickerView:(UIPickerView *)thePickerView numberOfRowsInComponent:(NSInteger)component
{
    return [years count];
}
- (NSString *)pickerView:(UIPickerView *)thePickerView
titleForRow:(NSInteger)row forComponent:(NSInteger)component
{
    return [years objectAtIndex:row];
}

不要忘记接口(interface)中的声明

//Data
NSMutableArray *years;

它的输出是

引用自here