iphone - UIDatePicker 非连续分钟

Question

我将我的 UIDatepicker timeInterval 设置为 30 分钟，因此它显示为 30,60(重复)。我真的不想让它重复，只显示 2 个选项(如 AM/PM)。有没有一种方法可以做到这一点而无需从头开始创建它？

谢谢!

Answer 1

为什么不改用 UIPicker？

    UIPickerView *pick=[[UIPickerView alloc] initWithFrame:CGRectMake(300, datep.frame.origin.y, datep.frame.size.width, datep.frame.size.height)];
[pick setDelegate:self];
[pick setDataSource:self];
[pick setShowsSelectionIndicator:YES];
[self.view addSubview:pick];

- (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView{
return 3;
}
- (NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component{
if(component==0){
    return 12;
}else{
    return 2;
}

return 2;
}

- (NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component{
if(component==1){
    if(row==1)
        return @"30";
    else
        return @"00";
    }
else if(component==0){
    return [NSString stringWithFormat:@"%d", row+1];
}else{
    if(row==1)
        return @"AM";
    else
        return @"PM";
    }    
}

-(CGFloat)pickerView:(UIPickerView *)pickerView widthForComponent:(NSInteger)component{
return 50;
}

- (CGFloat)pickerView:(UIPickerView *)pickerView rowHeightForComponent:(NSInteger)component{
return 50;
}