BottomNavigationView 아이콘 사이즈 수정법 (태블릿 대응)

BottomNavigationView 의 아이콘 사이즈는 내부적으로 하드코딩되어있다

그래서 drawable 이미지를 아무리 바꿔봤자 크기조절이 안된다

방법 1. support 라이브러리가 28 일때

 => BottomNavigationView XML 에서 수정가능

<android.support.design.widget.BottomNavigationView
    app:itemIconSize="@dimen/_26sdp"
    ....
    ....
</android.support.design.widget.BottomNavigationView>

방법 2. support 라이브러리 27이하

<dimen name="design_bottom_navigation_height" tools:override="true">100dp</dimen>
<dimen name="design_bottom_navigation_active_text_size" tools:override="true">20dp</dimen>
<dimen name="design_bottom_navigation_active_item_max_width" tools:override="true">250dp</dimen>
<dimen name="design_bottom_navigation_item_max_width" tools:override="true">200dp</dimen>
<dimen name="design_bottom_navigation_item_min_width" tools:override="true">180dp</dimen>

public boolean IsTablet() {
    //화면 사이즈 종류 구하기
    int screenSizeType = getResources().getConfiguration().screenLayout & Configuration.SCREENLAYOUT_SIZE_MASK;

    if (screenSizeType == Configuration.SCREENLAYOUT_SIZE_XLARGE || screenSizeType == Configuration.SCREENLAYOUT_SIZE_LARGE) {
        return true;
    }
    return false;
}

if (IsTablet()) {
    Log.d(TAG, "onCreate: 태블릿이다");
    BottomNavigationMenuView menuView = (BottomNavigationMenuView) bottomNavigationView.getChildAt(0);
    for (int i = 0; i < menuView.getChildCount(); i++) {
        final View iconView = menuView.getChildAt(i).findViewById(android.support.design.R.id.icon);
        final ViewGroup.LayoutParams layoutParams = iconView.getLayoutParams();
        final DisplayMetrics displayMetrics = getResources().getDisplayMetrics();
        layoutParams.height = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 45, displayMetrics);
        layoutParams.width = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 45, displayMetrics);
        iconView.setLayoutParams(layoutParams);
    }
}