ThemeHelper.java 文件源码

/**
 * Returns the color state list, which corresponds to a specific theme attribute, regarding the
 * theme, which is used when using a specific layout.
 *
 * @param layout
 *         The layout as a value of the enum {@link Layout}. The layout may not be null
 * @param resourceId
 *         The resource id of the theme attribute, the color state list should be obtained from,
 *         as an {@link Integer} value. The resource id must correspond to a valid theme
 *         attribute
 * @return The color state list, which has been obtained, as an instance of the class {@link
 * ColorStateList}
 */
public ColorStateList getColorStateList(@NonNull final Layout layout,
                                        @AttrRes final int resourceId) {
    try {
        return ThemeUtil.getColorStateList(context, resourceId);
    } catch (NotFoundException e1) {
        int themeResourceId = getThemeResourceId(layout);

        try {
            return ThemeUtil.getColorStateList(context, themeResourceId, resourceId);
        } catch (NotFoundException e) {
            themeResourceId = obtainThemeFromThemeAttributes(layout, themeResourceId);
            return ThemeUtil.getColorStateList(context, themeResourceId, resourceId);
        }
    }
}