고유 키를 사용하는 NSKeyed 아카이버 경고

Question

보존/상태 복원을 테스트 할 때 홈 버튼을 사용하여 백그라운드에 앱을 넣을 때 이와 같은 로그 경고가 여러 번 표시됩니다.

2014-02-13 20:13:08.275 FlowTrak[16777:60b] *** NSKeyedArchiver warning: replacing existing 
value for key 'UIStateRestorationViewControllerStoryboard'; probable duplication of encoding 
keys in class hierarchy 

앱이 기기에 잘 실행하고 상태 복원/보존의 모두가 정상적으로 작동하지만, 나는 이러한 경고를 제거 싶어요. 거기에 이러한 경고에 대한 정보가별로 없지만 내가 읽은 것부터, 내가 보존하고있는 각 UI 항목에 대해 고유 한 키를 사용하는 한 오랫동안 사용하면 좋을 것입니다.

이 문제를 해결하기위한 아이디어가 있습니까? 감사.

// Restoration of text fields 
-(void)encodeRestorableStateWithCoder:(NSCoder *)coder 
{ 
    // start level text 
    [coder encodeObject:_startLevel.text forKey:@"startText"]; 
    [super encodeRestorableStateWithCoder:coder]; 

    // stop level text 
    [coder encodeObject:_stopLevel.text forKey:@"stopText"]; 
    [super encodeRestorableStateWithCoder:coder]; 

    // start time label 
    [coder encodeObject:_startTimeLabel.text forKey:@"startTimeText"]; 
    [super encodeRestorableStateWithCoder:coder]; 

    // stop time label 
    [coder encodeObject:_stopTimeLabel.text forKey:@"stopTimeText"]; 
    [super encodeRestorableStateWithCoder:coder]; 

    // minute rate label 
    [coder encodeObject:_minuteRateLabel.text forKey:@"minuteRateText"]; 
    [super encodeRestorableStateWithCoder:coder]; 

    // start segmented control 
    [coder encodeInteger:self.startFractionControl.selectedSegmentIndex forKey:@"startIndex"]; 
    [super encodeRestorableStateWithCoder:coder]; 

    // stop segmented control 
    [coder encodeInteger:self.stopFractionControl.selectedSegmentIndex forKey:@"stopIndex"]; 
    [super encodeRestorableStateWithCoder:coder]; 

    // start button state 
    [coder encodeBool:self.start.enabled forKey:@"startButtonState"]; 
    [super encodeRestorableStateWithCoder:coder]; 

    // stop button state 
    [coder encodeBool:self.stop.enabled forKey:@"stopButtonState"]; 
    [super encodeRestorableStateWithCoder:coder]; 

    // calculate button state 
    [coder encodeBool:self.calculate.enabled forKey:@"calculateButtonState"]; 
    [super encodeRestorableStateWithCoder:coder]; 

    // resume button state 
    [coder encodeBool:self.resume.enabled forKey:@"resumeButtonState"]; 
    [super encodeRestorableStateWithCoder:coder]; 

    // tank selector segmented control 
    [coder encodeInteger:self.tankControl.selectedSegmentIndex forKey:@"tankIndex"]; 
    [super encodeRestorableStateWithCoder:coder]; 

    // start time for equation 
    [coder encodeDouble:startTime forKey:@"startTimeEquation"]; 
    [super encodeRestorableStateWithCoder:coder]; 

    // stop time for equation 
    [coder encodeDouble:stopTime forKey:@"stopTimeEquation"]; 
    [super encodeRestorableStateWithCoder:coder]; 

    // start segmented control for equation 
    [coder encodeObject:startFractions forKey:@"startFractionsEquation"]; 
    [super encodeRestorableStateWithCoder:coder]; 

    // stop segmented control for equation 
    [coder encodeObject:stopFractions forKey:@"stopFractionsEquation"]; 
    [super encodeRestorableStateWithCoder:coder]; 

    // tank selector segmented control for equation 
    [coder encodeBool:bigTank forKey:@"bigTankEquation"]; 
    [super encodeRestorableStateWithCoder:coder]; 


} 

-(void)decodeRestorableStateWithCoder:(NSCoder *)coder 
{ 
    // start level text 
    _startLevel.text = [coder decodeObjectForKey:@"startText"]; 
    [super decodeRestorableStateWithCoder:coder]; 

    // stop level text 
    _stopLevel.text = [coder decodeObjectForKey:@"stopText"]; 
    [super decodeRestorableStateWithCoder:coder]; 

    // start time label 
    _startTimeLabel.text = [coder decodeObjectForKey:@"startTimeText"]; 
    [super decodeRestorableStateWithCoder:coder]; 

    // stop time label 
    _stopTimeLabel.text = [coder decodeObjectForKey:@"stopTimeText"]; 
    [super decodeRestorableStateWithCoder:coder]; 

    // minute rate label 
    _minuteRateLabel.text = [coder decodeObjectForKey:@"minuteRateText"]; 
    [super decodeRestorableStateWithCoder:coder]; 

    // start segmented control 
    self.startFractionControl.selectedSegmentIndex = [coder decodeIntegerForKey:@"startIndex"]; 
    [super decodeRestorableStateWithCoder:coder]; 

    // stop segmented control 
    self.stopFractionControl.selectedSegmentIndex = [coder decodeIntegerForKey:@"stopIndex"]; 
    [super decodeRestorableStateWithCoder:coder]; 

    // start button state 
    self.start.enabled = [coder decodeBoolForKey:@"startButtonState"]; 
    [super decodeRestorableStateWithCoder:coder]; 

    // stop button state 
    self.stop.enabled = [coder decodeBoolForKey:@"stopButtonState"]; 
    [super decodeRestorableStateWithCoder:coder]; 

    // calculate button state 
    self.calculate.enabled = [coder decodeBoolForKey:@"calculateButtonState"]; 
    [super decodeRestorableStateWithCoder:coder]; 

    // resume button state 
    self.resume.enabled = [coder decodeBoolForKey:@"resumeButtonState"]; 
    [super decodeRestorableStateWithCoder:coder]; 

    // tank selector segmented control 
    self.tankControl.selectedSegmentIndex = [coder decodeIntegerForKey:@"tankIndex"]; 
    [super decodeRestorableStateWithCoder:coder]; 

    // start time for equation 
    startTime = [coder decodeDoubleForKey:@"startTimeEquation"]; 
    [super decodeRestorableStateWithCoder:coder]; 

    // stop time for equation 
    stopTime = [coder decodeDoubleForKey:@"stopTimeEquation"]; 
    [super decodeRestorableStateWithCoder:coder]; 

    // start segmented control for equation 
    startFractions = [coder decodeObjectForKey:@"startFractionsEquation"]; 
    [super decodeRestorableStateWithCoder:coder]; 

    // stop segmented control for equation 
    stopFractions = [coder decodeObjectForKey:@"stopFractionsEquation"]; 
    [super decodeRestorableStateWithCoder:coder]; 

    // calculate button state 
    bigTank = [coder decodeBoolForKey:@"bigTankEquation"]; 
    [super decodeRestorableStateWithCoder:coder]; 

} 

Answer 1

는 왜 슈퍼의 구현 여러 번 호출 : 여기

내 코드? 한번만 부르세요!