Passing Extras and screen rotation

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终归单人心
终归单人心 2021-01-26 07:52

This kind of questions appear periodically. Sorry if this has been covered before, but I\'m a newbie and couldn\'t find the appropriate answer. It deals with the correct impleme

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  • 2021-01-26 08:13

    Try this code to store the values for the activity

    Long value;
    
    protected void onSaveInstanceState(Bundle onOrientChange) {
        super.onSaveInstanceState(onOrientChange);
        onOrientChange.putLong("myValue", value);  
    }
    

    And restore the values in onCreate():

    public void onCreate(Bundle onOrientChange) {
      if (onOrientChange!= null){
       value = onOrientChange.getLong("myValue");
      }
    }
    

    Usually you restore your state in onCreate(). It is possible to restore it in onRestoreInstanceState() as well, but not very common. (onRestoreInstanceState() is called after onStart(), whereas onCreate() is called before onStart().

    Use the put methods to store values in onSaveInstanceState()

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