Android - How to Get the Processname or Packagename by Using Pid

Android - How to get the processName or packageName by using PID?

Hello you can use this code, it works for me in Android 2.3.3:

private String getAppName(int pID)
{
    String processName = "";
    ActivityManager am = (ActivityManager)this.getSystemService(ACTIVITY_SERVICE);
    List l = am.getRunningAppProcesses();
    Iterator i = l.iterator();
    PackageManager pm = this.getPackageManager();
    while(i.hasNext()) 
    {
          ActivityManager.RunningAppProcessInfo info = (ActivityManager.RunningAppProcessInfo)(i.next());
          try 
          { 
              if(info.pid == pID)
              {
                  CharSequence c = pm.getApplicationLabel(pm.getApplicationInfo(info.processName, PackageManager.GET_META_DATA));
                  //Log.d("Process", "Id: "+ info.pid +" ProcessName: "+ info.processName +"  Label: "+c.toString());
                  //processName = c.toString();
                  processName = info.processName;
              }
          }
          catch(Exception e) 
          {
                //Log.d("Process", "Error>> :"+ e.toString());
          }
   }
    return processName;
}

How to get app package name by pid?

Hello you can try out this code, it works fine for me.

private String getAppName(int pID)
{
    String processName = "";
    ActivityManager am = (ActivityManager)this.getSystemService(ACTIVITY_SERVICE);
    List l = am.getRunningAppProcesses();
    Iterator i = l.iterator();
    PackageManager pm = this.getPackageManager();
    while(i.hasNext()) 
    {
          ActivityManager.RunningAppProcessInfo info = (ActivityManager.RunningAppProcessInfo)(i.next());
          try 
          { 
              if(info.pid == pID)
              {
                  CharSequence c = pm.getApplicationLabel(pm.getApplicationInfo(info.processName, PackageManager.GET_META_DATA));
                  //Log.d("Process", "Id: "+ info.pid +" ProcessName: "+ info.processName +"  Label: "+c.toString());
                  //processName = c.toString();
                  processName = info.processName;
              }
          }
          catch(Exception e) 
          {
                //Log.d("Process", "Error>> :"+ e.toString());
          }
   }
    return processName;
}

How to get PID from package name?

try

restartPackage code

ActivityManager aM = (ActivityManager);
getApplicationContext().getSystemService(getApplicationContext().ACTIVITY_SERVICE);
aM.restartPackage("com.android.email");

Kill BackGround Process Code

ActivityManager aM = (ActivityManager)
getApplicationContext().getSystemService(Catalogue.content_holder.getApplicationContext().ACTIVITY_SERVICE);
aM.killBackgroundProcesses("com.android.email");

Here is code which fetches all running Application and check wether email app is already running or not , if it is running then kill that process

ActivityManager manager =  (ActivityManager) getApplicationContext.getSystemService(getApplicationContext.ACTIVITY_SERVICE);
List<RunningAppProcessInfo> activityes = ((ActivityManager)manager).getRunningAppProcesses();

for (int iCnt = 0; iCnt < activityes.size(); iCnt++){

    System.out.println("APP: "+iCnt +" "+ activityes.get(iCnt).processName);

    if (activityes.get(iCnt).processName.contains("com.android.email")){
        android.os.Process.sendSignal(activityes.get(iCnt).pid, android.os.Process.SIGNAL_KILL);
        android.os.Process.killProcess(activityes.get(i).pid);
        //manager.killBackgroundProcesses("com.android.email");

        //manager.restartPackage("com.android.email");

        System.out.println("Inside if");
    }

}

Is there a way to get current process name in Android

Get it from ActivityThread

In API 28+, you can call Application.getProcessName(), which is just a public wrapper around ActivityThread.currentProcessName().

On older platforms, just call ActivityThread.currentProcessName() directly.

Note that prior to API 18, the method was incorrectly called ActivityThread.currentPackageName() but still in fact returned the process name.

Example code

public static String getProcessName() {
    if (Build.VERSION.SDK_INT >= 28)
        return Application.getProcessName();

    // Using the same technique as Application.getProcessName() for older devices
    // Using reflection since ActivityThread is an internal API

    try {
        @SuppressLint("PrivateApi")
        Class<?> activityThread = Class.forName("android.app.ActivityThread");

        // Before API 18, the method was incorrectly named "currentPackageName", but it still returned the process name
        // See https://github.com/aosp-mirror/platform_frameworks_base/commit/b57a50bd16ce25db441da5c1b63d48721bb90687
        String methodName = Build.VERSION.SDK_INT >= 18 ? "currentProcessName" : "currentPackageName";

        Method getProcessName = activityThread.getDeclaredMethod(methodName);
        return (String) getProcessName.invoke(null);
    } catch (ClassNotFoundException e) {
        throw new RuntimeException(e);
    } catch (NoSuchMethodException e) {
        throw new RuntimeException(e);
    } catch (IllegalAccessException e) {
        throw new RuntimeException(e);
    } catch (InvocationTargetException e) {
        throw new RuntimeException(e);
    }
}

Compatibility

Tested and working on

• Official emulator
  
  
  • 16
  • 17
  • 18
  • 19
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • Q beta 1
• Real devices
  
  
  • Motorola Moto G5 Plus running Android 8.1.0
  • Samsung Galaxy S5 running Android 6.0.1
  • Sony Xperia M running stock Android 7.1.1
  • Sony Xperia M running Sony Android 4.1.2

NDK get pid from package name

read /proc/self/status
parse string to get pid

int find_pid_of(const char *process_name)
{
    int id;
    pid_t pid = -1;
    DIR* dir;
    FILE *fp;
    char filename[32];
    char cmdline[256];

    struct dirent * entry;

    if (process_name == NULL)
        return -1;

    dir = opendir("/proc");
    if (dir == NULL)
        return -1;

    while((entry = readdir(dir)) != NULL) {
        id = atoi(entry->d_name);
        if (id != 0) {
            sprintf(filename, "/proc/%d/cmdline", id);
            fp = fopen(filename, "r");
            if (fp) {
                fgets(cmdline, sizeof(cmdline), fp);
                fclose(fp);

                if (strcmp(process_name, cmdline) == 0) {
                    /* process found */
                    pid = id;
                    break;
                }
            }
        }
    }

    closedir(dir);
    return pid;
}

Pid for the process that sent an intent

take a look at

http://developer.android.com/reference/android/app/ActivityManager.RunningAppProcessInfo.html

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