Android Sdcard 可用空間大小

/**

* 獲取sdcard使用狀況

*/

private void setSdcardInfo(){

if(Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)){

File filePath = Environment.getExternalStorageDirectory();    //得到sd卡的路徑

StatFs stat=new StatFs(filePath.getPath());                 //建立StatFs對象

long blockSize=stat.getBlockSize();                         //獲取block的size

float totalBlocks=stat.getBlockCount();                     //獲取block的總數

float totalGbSize = (blockSize*totalBlocks)/1024/1024/1024;

DecimalFormat df = new DecimalFormat(「#0.0″);

String totalGbSizeStr = df.format(totalGbSize);            //總共大小

long availableBlocks=stat.getAvailableBlocks();             //獲取可用塊大小

String usedTotalGbSizeStr = df.format((totalBlocks – availableBlocks) * blockSize /1024/1024/1024);//已用大小

System.out.println(「存儲空間」+totalGbSizeStr+」G,已用」+usedTotalGbSizeStr+」G」);

}

else{

Toast.makeText(this,」SD卡不存在」,Toast.LENGTH_LONG).show();

}

}