目前最完整的，需要注册的动作匹配如下：

IntentFilter intentFilter = new IntentFilter(Intent.ACTION_MEDIA_MOUNTED);
        intentFilter.addAction(Intent.ACTION_MEDIA_UNMOUNTED);
        intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_STARTED);
        intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_FINISHED);
        intentFilter.addAction(Intent.ACTION_MEDIA_CHECKING);
        intentFilter.addAction(Intent.ACTION_MEDIA_BAD_REMOVAL);
        intentFilter.addDataScheme("file");
        mContext.registerReceiver(mMediaReceiver, intentFilter);