UIDatePicker仅显示年份 [英] UIDatePicker to show year only

问题描述

有没有办法让UIDatePicker只显示年份？

Is there a way to have a UIDatePicker show year only?

推荐答案

我有一些我要做的代码删除，但如果它在某个地方在线，则片段会更好。这并不奇怪，但它是可以搜索的！

I have a little code that I was about to delete, but the snippet is better off if it is online somewhere. It's not amazing, but it is searchable!

自1960年以来创建所有年份数组的Objective-C代码。非常适合输入 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];
}

不要忘记界面中的声明

//Data
NSMutableArray *years;

它的输出是

从这里

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