Android - 如何使用 PID 获取 processName 或 packageName? [英] Android - How to get the processName or packageName by using PID?

问题描述

我的问题:给定某个进程的 PID，我可以用什么来检索它的 processName 或 packageName?

MY QUESTION: What could I use to retrieve the processName or packageName of a certain process given its PID?

因为在我的任务管理器中，我想在利用 killBackgroundProcesses 代码杀死进程的同时使用 PID.问题是我需要 packageName/processName 来做到这一点，如果我让他们输入 processName 而不是仅仅输入它的 PID，这对用户来说会很麻烦.

Since in my task manager I wanted to use the PID while utilizing the killBackgroundProcesses code to kill the processes. Problem is I need the packageName/processName to do that and it would be such a hassle to the user if I asked them to type in the processName rather than just typing its PID.

这是我的任务管理器的图片:

here's the image of my task manager:

推荐答案

您好，您可以使用此代码，它在 Android 2.3.3 中适用于我:

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;
}

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