AndroidTV 获取通知图标

Question

我正在尝试在 AndroidTV 上获取活动通知的图标。我需要将其编码为 base64 并将其发送到本机反应。

图标存储为blob类型，解码后看起来像这样

android.graphics.drawable.Icon  com.android.systemui/

这看起来只是图标的路径，但我需要获取真正的图标并将其编码为 base 64。

我正在检索这样的数据：

private static final Uri NOTIF_CONTENT_URI = Uri.parse(
            "content://com.android.tv.notifications.NotificationContentProvider/" +
                    "notifications");

final String[] projection = { TITLE, TEXT, SMALL_ICON};

Cursor c = _reactContext.getContentResolver().query(NOTIF_CONTENT_URI, projection, null,
                null, null);

if (c != null && c.moveToFirst()) {
     do {
         String title = c.getString(c.getColumnIndex(TITLE));
         String text = c.getString(c.getColumnIndex(TEXT));
         byte[] smallIconBytes = c.getBlob(c.getColumnIndex(SMALL_ICON));
     } while (c.moveToNext());
}

获取标题和文本可以正常工作，但将图标字节编码为 base64 会返回

HgAAAGEAbgBkAHIAbwBpAGQALgBnAHIAYQBwAGgAaQBjAHMALgBkAHIAYQB3AGEAYgBsAGUALgBJAGMAbwBuAAAAAAACAAAAFAAAAGMAbwBtAC4AYQBuAGQAcgBvAGkAZAAuAHMAeQBzAHQAZQBtAHUAaQAAAAAALwUIAQAAAAAFAAAA

可以解码为

android.graphics.drawable.Icon  com.android.systemui/

如何获得该图标而不仅仅是路径？谢谢。

Answer 1

private static Icon getIconFromBytes(byte[] blob) {
        Parcel in = Parcel.obtain();
        Icon icon = null;
        if (blob != null) {
            in.unmarshall(blob, 0, blob.length);
            in.setDataPosition(0);
            icon = in.readParcelable(Icon.class.getClassLoader());
        }

        in.recycle();
        return icon;
}