android內部手機存儲

Question

如何從應用中檢索您的手機內部存儲？我發現memoryinfo，但它似乎返回有關您當前正在運行的任務多少內存的信息。我試圖讓我的應用程序檢索有多少內部電話存儲可用。

Answer 1

使用android.os.Environment找到內部目錄，然後使用android.os.StatFs來調用它的Unix statfs系統調用。從Android設置應用程序無恥stolen：

File path = Environment.getDataDirectory(); 
StatFs stat = new StatFs(path.getPath()); 
long blockSize = stat.getBlockSize(); 
long availableBlocks = stat.getAvailableBlocks(); 
return Formatter.formatFileSize(this, availableBlocks * blockSize); 

Answer 2

我很難有礦工。所以我想分享一下我的工作代碼來節省一些人的時間。
在32GB設備和1GB設備上進行測試。

// Return size is in Megabytes 
public class DeviceMemory { 

     public static long getInternalStorageSpace() 
     { 
      StatFs statFs = new StatFs(Environment.getDataDirectory().getAbsolutePath()); 
      //StatFs statFs = new StatFs("/data"); 
      long total = ((long)statFs.getBlockCount() * (long)statFs.getBlockSize())/1048576; 
      return total; 
     } 

     public static long getInternalFreeSpace() 
     { 
      StatFs statFs = new StatFs(Environment.getDataDirectory().getAbsolutePath()); 
      //StatFs statFs = new StatFs("/data"); 
      long free = ((long)statFs.getAvailableBlocks() * (long)statFs.getBlockSize())/1048576; 
      return free; 
     } 

     public static long getInternalUsedSpace() 
     { 
      StatFs statFs = new StatFs(Environment.getDataDirectory().getAbsolutePath()); 
      //StatFs statFs = new StatFs("/data"); 
      long total = ((long)statFs.getBlockCount() * (long)statFs.getBlockSize())/1048576; 
      long free = ((long)statFs.getAvailableBlocks() * (long)statFs.getBlockSize())/1048576; 
      long busy = total - free; 
      return busy; 
     } 
}