Slider position does not update when value is loaded

Question

Hi can't make this to work: Basically I am try to change the value of a slider when I load some value that I previously saved. I have tested the data and it works fine when reading it (the value is what is supposed to be) just does not update the position of the slider :-( Please help!

     public void Load()
             {
                 if (File.Exists(Application.persistentDataPath + "/weatherInfo.dat"))
                 {
                     BinaryFormatter bf = new BinaryFormatter();
                     FileStream file = File.Open(Application.persistentDataPath + "/weatherInfo.dat", FileMode.Open);
 
                     WeatherData data = bf.Deserialize(file) as WeatherData;
                     file.Close();
 
                     DawnDuskSlider.value = data.hours;
                     
                     Debug.Log("data in data is:" + data.hours);
                     Debug.Log("data in slider is:" + DawnDuskSlider.value);
                     
                 }
             }

Answer 1

Answer by KittenSnipes · Sep 29, 2018 at 09:19 AM

@paganic I think it is because you close the file and thus lost the data that it was holding temporarily. Try writing it like this instead:

              public void Load()
              {
                  if (File.Exists(Application.persistentDataPath + "/weatherInfo.dat"))
                  {
                      BinaryFormatter bf = new BinaryFormatter();
                      FileStream file = File.Open(Application.persistentDataPath + "/weatherInfo.dat", FileMode.Open);
  
                      WeatherData data = bf.Deserialize(file) as WeatherData;
  
                      DawnDuskSlider.value = data.hours;
                      file.Close();
                   }
              }

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imagoculturae · Sep 30, 2018 at 12:12 AM 0

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Nop... the slider still does not move :-(

I have also tried this but no luck when calling the function so that value is set and ok but slider does not move:

       public void SubmitSliderSetting(float slide)
             {
                 DawnDuskSlider.value = slide;
                 //Displays the value of the slider in the console.
                 Debug.Log(DawnDuskSlider.value);
             }

imagoculturae · Oct 02, 2018 at 01:01 PM 0

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I think is a bug in Unity because I have also try this and it does not work:

  public void SaveSettings()
         {
             PlayerPrefs.SetFloat("Hours", DawnDuskSlider.value);
 
             Debug.Log("data out slider is:" + DawnDuskSlider.value);
         }
 
         public void LoadSettings(float val)
         {
             
             DawnDuskSlider.value = PlayerPrefs.GetFloat("Hours", val);
             Debug.Log("data in slider is:" + DawnDuskSlider.value);
         }

Slider position does not update when value is loaded

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