TabSwitcherDrawable.java 文件源码

/**
 * Creates a new drawable, which allows to display the number of tabs, which are currently
 * contained by a {@link TabSwitcher}.
 *
 * @param context
 *         The context, which should be used by the drawable, as an instance of the class {@link
 *         Context}. The context may not be null
 */
public TabSwitcherDrawable(@NonNull final Context context) {
    ensureNotNull(context, "The context may not be null");
    Resources resources = context.getResources();
    size = resources.getDimensionPixelSize(R.dimen.tab_switcher_drawable_size);
    textSizeNormal =
            resources.getDimensionPixelSize(R.dimen.tab_switcher_drawable_font_size_normal);
    textSizeSmall =
            resources.getDimensionPixelSize(R.dimen.tab_switcher_drawable_font_size_small);
    background = ContextCompat.getDrawable(context, R.drawable.tab_switcher_drawable_background)
            .mutate();
    paint = new Paint(Paint.ANTI_ALIAS_FLAG);
    paint.setColor(Color.WHITE);
    paint.setTextAlign(Align.CENTER);
    paint.setTextSize(textSizeNormal);
    paint.setTypeface(Typeface.create(Typeface.SANS_SERIF, Typeface.BOLD));
    label = Integer.toString(0);
    int tint = ThemeUtil.getColor(context, android.R.attr.textColorPrimary);
    setColorFilter(tint, PorterDuff.Mode.MULTIPLY);
}