Android - File 取得檔案資訊

1.取得總容量(Api18)

 
File getfile=new File(android.os.Environment.getExternalStorageDirectory());
StatFs stat = new StatFs(getFile.getPath());        
long freeSize =  stat.getFreeBytes();//剩餘空間     
long totalbytess = stat.getTotalBytes();//總空間
System.out.println("@@@@ [FileCache] totalbytess:"+totalbytess);

2.取得外部SD卡/USB路徑
   參考連結
   Path = System.getenv("EXTERNAL_STORAGE_EXTSD");
   Path = System.getenv("EXTERNAL_STORAGE_USB1");