NotificationBuilder.java 文件源码

/**
 * get uri to drawable or any other resource type if u wish
 * @param context - context
 * @param drawableId - drawable res id
 * @return - uri
 */
public static String getUriToDrawable(@NonNull Context context, @AnyRes int drawableId) {
    String imageUri = ContentResolver.SCHEME_ANDROID_RESOURCE +
            "://" + context.getResources().getResourcePackageName(drawableId)
            + '/' + context.getResources().getResourceTypeName(drawableId)
            + '/' + context.getResources().getResourceEntryName(drawableId);
    return imageUri;
}