Merge "Fix Caption preview SubtitleView textSize cannot update correctly" into tm-dev

import android.content.res.Resources;

import android.graphics.Color;

import android.os.Bundle;

import android.os.Handler;

import android.os.Looper;

import android.provider.Settings;

import android.view.View;

import android.view.accessibility.CaptioningManager;

    private final List<Preference> mPreferenceList = new ArrayList<>();

    private final Handler mHandler = new Handler(Looper.getMainLooper());

    private final View.OnLayoutChangeListener mLayoutChangeListener =

            new View.OnLayoutChangeListener() {

                @Override

                        int oldLeft, int oldTop, int oldRight, int oldBottom) {

                    // Remove the listener once the callback is triggered.

                    mPreviewViewport.removeOnLayoutChangeListener(this);

                    refreshPreviewText();

                    mHandler.post(() ->refreshPreviewText());

                }

            };