Android : Fetch Application CPU , Memory Usage ,Running Process

Fetch Application CPU , Memory Usage ,Running Process

Below given generic functions can be used in your program without any major mod.

Reference sites :
http://android-test-tw.blogspot.in/2012/10/dumpsys-information-android-open-source.html
http://www.m2catalyst.com/tutorial-finding-cpu-usage-for-individual-android-apps/
http://stackoverflow.com/questions/15148193/how-to-get-higher-precision-of-cpu-than-that-from-top-command
http://stackoverflow.com/questions/11201659/whats-android-adb-shell-dumpsys-tool-and-its-benefits
http://codeseekah.com/2012/10/21/android-shell-tricks-ps/   -(Android shell tricks: ps)

//Fetches the CPU usage of the given Process - Currently all process @ 0%

   private String process_name_cpu(String Process_name)
   {
          try{   
                 ArrayList<String> list2 = new ArrayList<String>();     

  //adb shell dumpsys cpuinfo
        //(adb shell ps | grep com.android.phone | awk '{ system("adb shell cat /proc/" $2 "/stat");}' | awk '{print $14+$15;}')
        //ps -eo pcpu,pid,user,args | sort -r -k1 | less
        //ps -t -x -P -p -c
        //ps -t -x -P -p -c [pid|name]
        //com.android.calculator2|2302
        //Process p2 = Runtime.getRuntime().exec("ps -t -x -P -p -c ["+2302+"]",null,null);
 
                 Process p2 = Runtime.getRuntime().exec("top -m 150  -d 1 -n 1",null,null);//top -m 150  -d 1 -n 1",null,null);
                 BufferedReader reader2 = new BufferedReader(new InputStreamReader(p2.getInputStream()));
                 int i2 = 0;
                 String line2 = reader2.readLine();
                 String a[]={""};          
                // System.out.println(line2);
                 while (line2 != null) {
                       // Log.e("Output "  + i2, line2);
                        list2.add(line2);
                        line2 = reader2.readLine();      
                        i2++ ;
                 }
                 p2.waitFor();
                 for (int i=0 ;i<=list2.size();i++)
                 {     
                        if(list2.get(i).contains(Process_name)==true)
                        {
                              a=list2.get(i).toString().split(" ");
                              break;
                        }
                 }
                
                 for(int i=0;i<=a.length;i++)
                 {
                        if(a[i].contains("%")==true){                            
                        System.out.println("cpu utilization" + a[i]);                      
                        return a[i];
                        }
                 }
                       
          }catch (Throwable t)
                 {
                 System.out.println("Unable to fetch cpu data ---\n"+t.fillInStackTrace());
                 }
         
          return null;
   }



   //---------------------------------------------------------------

   //Description: Retrieves the process name from the application

   //Arguements required : application_name  -- String Type---Input
                        //Ex: app_to_process_name("system")

                        //returns cpu usage --String Type (ex:com.android.system)

   private String app_to_process_name(String application_name)
   {
          try{
                 ArrayList<AppActivity> res = new ArrayList<AppActivity>();       
         
       List<PackageInfo> packs = getPackageManager().getInstalledPackages(0);   
       String sApp_name,sProcess_name;
      
       for(int i=0;i<packs.size();i++)
       {
           PackageInfo p = packs.get(i);
           if ((p.versionName == null))
           {
               continue ;
           }    
          
           sApp_name = p.applicationInfo.loadLabel(getPackageManager()).toString();
           sProcess_name=p.applicationInfo.processName.toString();
          
           if(sApp_name.contentEquals(application_name))
           {
                //System.out.println("gotcha"+ sProcess_name );
               
              
               return sProcess_name;             //break;
                
                
           }      
       }
          }catch (Throwable t)
          {
                 System.out.println("Unable to fetch the process name from the app\n"+t.getMessage());
          }
       return null;
   }

   //Description: Retreives the memory consumed by the particular process

   //Arguements required : sProcess -- String Type---Input
                        //Ex: process_memory("com.android.system")

                        //returns memory usage --integer Type (ex: 22845) /// in kb

   // NOTE: Fetchs the PSS memory of the process
   private int process_memory(String sProcess)
   {
          try{
                 ActivityManager localActivityManager = (ActivityManager)getSystemService(Context.ACTIVITY_SERVICE); // use Context.ACTIVITY_SERVICE not the literal "activity"        
               List<ActivityManager.RunningAppProcessInfo> procsInfo = localActivityManager.getRunningAppProcesses();
         
               int[] pids = new int[procsInfo.size()];
               for (int i = 0; i < procsInfo.size(); i++)
               {
                   ActivityManager.RunningAppProcessInfo info = procsInfo.get(i);
                   pids[i] = info.pid;
               }
         
               Debug.MemoryInfo[] procsMemInfo = localActivityManager.getProcessMemoryInfo(pids);
               for (int idx = 0; idx < procsMemInfo.length; idx++)
               {
                  if(procsInfo.get(idx).processName.toString().equalsIgnoreCase(sProcess))
                  {
                     
                      System.out.println("memory" + procsMemInfo[idx].getTotalPss());
                         return procsMemInfo[idx].getTotalPss();               
                  }
               }
          }catch (Throwable t)
          {
                 Log.v("process missing","Unable to find the process");
                 System.out.println("Process not found---\n"+t.getMessage());
          //     return 0;
          }
          return 0;            
          }