Android获取系统储存以及内存信息的方法（二）

Android获取储存信息以及内存信息可以用adb命令查看。

adb查看系统内存信息以及储存信息：

命令：adb shell cat /proc/meminfo

代码:

 private static final String FILENAME_PROC_MEMINFO = "/proc/meminfo";

 public static String getTotalMemorySize() {
    try {
      FileReader fr = new FileReader(FILENAME_PROC_MEMINFO);
      BufferedReader br = new BufferedReader(fr, 2048);
//      String memoryLine = br.readLine();
      String subMemoryLine = "";
      String Line = "";
      while ((Line = br.readLine()) != null)
      {
 if (Line.contains("MemTotal:")){
   subMemoryLine = Line.substring(Line.indexOf("MemTotal:"));
   break;
 }

      }
      br.close();
      Matcher mer = Pattern.compile("^[0-9]+$").matcher(subMemoryLine.replaceAll("\D+", ""));
      //如果为正整数就说明数据正确的，确保在Double.parseDouble中不会异常
      if (mer.find()) {
 long memSize = Integer.parseInt(subMemoryLine.replaceAll("\D+", "")) ;
 double mem = (Double.parseDouble(memSize + "")/1024)/1024;
 NumberFormat nf = new DecimalFormat( "0.0 ");
 mem = Double.parseDouble(nf.format(mem));
 //Log.e(LOG_TAG,"=========mem================ " + mem);
 return String.valueOf(mem);
      }
    } catch (IOException e) {
      e.printStackTrace();
    }
    return "Unavailable";
  }

  
  public static String getFreeMemorySize() {
    try {
      FileReader fr = new FileReader(FILENAME_PROC_MEMINFO);
      BufferedReader br = new BufferedReader(fr, 2048);
//      String memoryLine = br.readLine();
      String subMemoryLine = "";
      String Line = "";
      while ((Line = br.readLine()) != null)
      {
 if (Line.contains("MemFree:")){
   subMemoryLine = Line.substring(Line.indexOf("MemFree:"));
   break;
 }

      }
      br.close();
      Matcher mer = Pattern.compile("^[0-9]+$").matcher(subMemoryLine.replaceAll("\D+", ""));
      //如果为正整数就说明数据正确的，确保在Double.parseDouble中不会异常
      if (mer.find()) {
 long memSize = Integer.parseInt(subMemoryLine.replaceAll("\D+", "")) ;
 double mem = (Double.parseDouble(memSize + "")/1024)/1024;
 NumberFormat nf = new DecimalFormat( "0.0 ");
 mem = Double.parseDouble(nf.format(mem));
 //Log.e(LOG_TAG,"=========mem================ " + mem);
 return String.valueOf(mem);
      }
    } catch (IOException e) {
      e.printStackTrace();
    }
    return "Unavailable";
  }

adb 获取手机储存大小：

命令：adb shell cat /proc/partitions

代码：

private static final String FILENAME_PROC_EMMCINFO = "/proc/partitions";
 
 public static String getEmmcSize() {
    try {
      FileReader fr = new FileReader(FILENAME_PROC_EMMCINFO);
      BufferedReader br = new BufferedReader(fr, 2048);
      String Line = "";
      String EmmcSize = "";
      while ((Line = br.readLine()) != null)
      {
 if (Line.length() >7 && Line.lastIndexOf(" ") > 0) {
   if (Line.substring(Line.lastIndexOf(" ") + 1 , Line.length()).equals("mmcblk0"))
   {

     EmmcSize = removeAllSpace(Line);
     break;
   }
 }

      }
      br.close();
      if (EmmcSize.length() >7 ){
 EmmcSize = (String) EmmcSize.subSequence(4, EmmcSize.length()-7);

 Matcher mer = Pattern.compile("^[0-9]+$").matcher(EmmcSize);
 //如果为正整数就说明数据正确的，确保在Double.parseDouble中不会异常
 if (mer.find()) {
   double mem = (Double.parseDouble(EmmcSize)/1024)/1024;
   NumberFormat nf = new DecimalFormat( "0.0 ");
   mem = Double.parseDouble(nf.format(mem));
   return String.valueOf(mem);
 }
      }
      return "0";
    } catch (IOException e) {
      e.printStackTrace();
    }
    return "Unavailable";
  }

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