1 public void systemScan(){ 2 sendBroadcast(new Intent(Intent.ACTION_MEDIA_MOUNTED, Uri.parse( "file://" 3 + Environment.getExternalStorageDirectory()))); 4 }
18 手动发广播扫描sd卡
原文：http://www.cnblogs.com/YyuTtian/p/5397916.html
