更新数据库线程

public class ReflashImageThread implements Runnable{ Context context;static boolean begin = true;public static Uri uri; public ReflashImageThread(Context context){this.context = context;}public void run(){while (begin) {reflashImagesDatabase(this.context); begin = false;}}public static void reflashImagesDatabase(Context context){ context.sendBroadcast(new Intent(Intent.ACTION_MEDIA_MOUNTED, Uri.parse("file://"+ Environment.getExternalStorageDirectory())));}}