ios iPhone 中的时间选择器
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Time picker in iPhone
提问by Verma
I have 2 field to show the date and time,in one field date is showing correctly by using NSDateFormatter and in another field want to show a time in UIPicker programmatically and put it into the label. Help me in this
我有 2 个字段来显示日期和时间，在一个字段中使用 NSDateFormatter 正确显示日期，在另一个字段中希望以编程方式在 UIPicker 中显示时间并将其放入标签中。帮我解决这个问题
回答by iPatel
Use UIDatePickerwith Timemode
UIDatePicker与Time模式一起使用
self.datePicker = [[UIDatePicker alloc] init];
self.datePicker.frame = CGRectMake(0, 0, self.view.frame.size.width, 180.0f); // set frame as your need
self.datePicker.datePickerMode = UIDatePickerModeTime;
[self.view addSubview: self.datePicker];
And set selected time in UILabelsuch like
并UILabel像这样设置选定的时间
UILabel * label1 = [[UILabel alloc] initWithFrame:CGRectMake(40, 70, 300, 50)];
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:@"hh:mm a"];
NSString *currentTime = [dateFormatter stringFromDate:self.datePicker.date];
label1.text = currentTime;
[self.view addSubview:label1];
Edited:
编辑：
Add following code to datePicker
将以下代码添加到 datePicker
[datePicker addTarget:self action:@selector(dateChanged:) forControlEvents:UIControlEventValueChanged];
And call this method
并调用此方法
- (void)dateChanged:(id)sender
{
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:@"hh:mm a"];
NSString *currentTime = [dateFormatter stringFromDate:self.datePicker.date];
NSLog(@"%@", currentTime);
}
