最近做項目遇到一個問題，在一個設置頁面有兩個輸入框，想讓用戶敲擊時，彈出日期控件，選擇日期時間。Baidu了一遍，發現沒有一個完整的解決方案，現在解決了，分享一下。
你可以用textfield的inputview和inputAccessoryView兩個屬性。創建datePicker,賦值給兩個textfield的inputview屬性。創建toolbar，包含一個Done按鈕，賦值給inputAccessoryView屬性。你需要用這個Done來退出inputview。
Done的事件處理：
if ( [textField1 isFirstResponder] ) {
[textField1 resignFirstResponder];
} else if ( [textField2 isFirstResponder] ) {
[textField2 resignFirstResponder];
}
Example
@interface CustomKeyboardAppDelegate : NSObject <UIApplicationDelegate> {
...
@property (nonatomic, retain) IBOutlet UIWindow *window;
@property (nonatomic, retain) IBOutlet UITextField *textField;
@property (nonatomic, retain) IBOutlet UIToolbar *accessoryView;
@property (nonatomic, retain) IBOutlet UIDatePicker *customInput;
- (IBAction)dateChanged:(id)sender;
- (IBAction)doneEditing:(id)sender;
@end
在XIB文件中，拖出 一個UIToolbar和一個UIDatePicker，但不要附加到View中（拖到視圖外面）。適當的連接Outlets。dateChanged:響應datepicker的ValueChanges，doneEditing:被ToolBar中的Done按鈕點擊時調用（Connection->Sent Actions->selectors）。以下是實現：
@implementation CustomKeyboardAppDelegate
@synthesize window=_window;
@synthesize textField = _textField;
@synthesize accessoryView = _accessoryView;
@synthesize customInput = _customInput;
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
self.textField.inputView = self.customInput;
self.textField.inputAccessoryView = self.accessoryView;
...
}
...
- (IBAction)dateChanged:(id)sender {
UIDatePicker *picker = (UIDatePicker *)sender;
self.textField.text = [NSString stringWithFormat:@"%@", picker.date];
}
- (IBAction)doneEditing:(id)sender {
[self.textField resignFirstResponder];
}
@end
