UIPickerView as inputView of UITextField

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转载自：http://www.cnblogs.com/appwgh/archive/2012/07/03/2574645.html

- (BOOL)textFieldShouldBeginEditing:(UITextField *)textField {        UIPickerView *pickerView = [[UIPickerView alloc] init];        [pickerView sizeToFit];    pickerView.autoresizingMask = (UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight);    pickerView.delegate = self;    pickerView.dataSource = self;    pickerView.showsSelectionIndicator = YES;                textField.inputView = pickerView;    [pickerView release];                UIToolbar* keyboardDoneButtonView = [[UIToolbar alloc] init];    keyboardDoneButtonView.barStyle = UIBarStyleBlack;    keyboardDoneButtonView.translucent = YES;    keyboardDoneButtonView.tintColor = nil;    [keyboardDoneButtonView sizeToFit];    UIBarButtonItem* doneButton = [[[UIBarButtonItem alloc] initWithTitle:@"确定"                                                                    style:UIBarButtonItemStyleBordered target:self                                                                   action:@selector(pickerDoneClicked)] autorelease];        [keyboardDoneButtonView setItems:[NSArray arrayWithObjects:doneButton, nil]];    textField.inputAccessoryView = keyboardDoneButtonView;      [keyboardDoneButtonView release];                  return YES;    }

UIPickerView消失：

- (void)pickerDoneClicked:(id)sender{//    [self.view endEditing:YES];    [_textField resignFirstResponder];}

还可以参考：http://stackoverflow.com/questions/20740874/uipickerview-as-inputview-of-uitextfield

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