code: private void obtainFloatingPointSeparator(@NonNull final TypedArray typedArray) {
          setFloatingPointSeparator(
                  typedArray.getText(R.styleable.SeekBarPreference_floatingPointSeparator));
      }
docs: Obtains the symbol, which is used to separate floating point numbers for textual
  representation, from a specific typed array.
  
  @param typedArray
  The typed array, the symbol should be obtained from, as an instance of the class
  {@link TypedArray}. The typed array may not be null