android 获取process，service，memory，task的信息

package com.pig.message.info;

import java.util.List;

import android.app.ActivityManager;
import android.app.ActivityManager.MemoryInfo;
import android.app.ActivityManager.RunningAppProcessInfo;
import android.app.ActivityManager.RunningServiceInfo;
import android.app.ActivityManager.RunningTaskInfo;
import android.content.Context;
import android.os.Debug;

public class AppInformation {
 private ActivityManager activityManager = null;
 
 public AppInformation(Context context){
  this.activityManager = (ActivityManager)context.getSystemService(Context.ACTIVITY_SERVICE);
 }
 
 public boolean isAppRunning(String packagename){
  System.out.println("appIsRunning()...");
  
  return false;
 }
 
 public int killProcessByName(String killProcessName){
  System.out.println("killProcessByName()...");
  
  int killNum = 0;
  List appProcessList = activityManager.getRunningAppProcesses();
  
  for(int i=0; i<appProcessList.size(); i++){
   RunningAppProcessInfo appProcessInfo = (RunningAppProcessInfo) appProcessList.get(i);
   //进程ID
   int pid = appProcessInfo.pid;
   //用户ID，类似于Linux的权限不同，ID也就不同， 比如root
   int uid = appProcessInfo.uid;
   //进程名，默认是包名或者由属性android:process=""指定
   String processName = appProcessInfo.processName;
   //获得该进程占用的内存
   int[] memPid = new int[]{ pid };
   //此MemoryInfo位于android.os.Debug.MemoryInfo包中，用来统计进程的内存信息
   Debug.MemoryInfo[] memoryInfo = activityManager.getProcessMemoryInfo(memPid);
   //获取进程占内存用信息kb单位
   int memSize = memoryInfo[0].dalvikPrivateDirty;
   
   System.out.println("process name: " + processName + " pid: " + pid + " uid: " + uid + " memory size is -->" + memSize + "kb");
   
   //获得每个进程里运行的应用程序(包)，即每个应用程序的包名   
   String[] packageList = appProcessInfo.pkgList;
   for(String pkg : packageList){
    System.out.println("package name " + pkg + " in process id is -->" + pid);
   }
   
   if(killProcessName.equals(processName)){
    System.out.println("===============killProcess pid-->" + pid);
    android.os.Process.killProcess(pid);
    killNum++;
   }
  }
  return killNum;
 }
 
 public long getSystemAvaialbeMemorySize(){
  MemoryInfo memoryInfo = new MemoryInfo();
  activityManager.getMemoryInfo(memoryInfo);
  long memSize = memoryInfo.availMem;
  
  System.out.println("getSystemAvaialbeMemorySize()...memory size: " + memSize);
  
  return memSize;
  
  //调用系统函数，字符串转换long -String KB/MB
  //return Formatter.formatFileSize(context, memSize);
 }
 
 public List getRunningAppProcessInfo(){
  System.out.println("getRunningAppProcessInfo()...");
  
  List appProcessList = activityManager.getRunningAppProcesses();
  
  for(int i=0; i<appProcessList.size(); i++){
   RunningAppProcessInfo appProcessInfo = (RunningAppProcessInfo) appProcessList.get(i);
   //进程ID
   int pid = appProcessInfo.pid;
   //用户ID，类似于Linux的权限不同，ID也就不同， 比如root
   int uid = appProcessInfo.uid;
   //进程名，默认是包名或者由属性android:process=""指定
   String processName = appProcessInfo.processName;
   //获得该进程占用的内存
   int[] memPid = new int[]{ pid };
   //此MemoryInfo位于android.os.Debug.MemoryInfo包中，用来统计进程的内存信息
   Debug.MemoryInfo[] memoryInfo = activityManager.getProcessMemoryInfo(memPid);
   //获取进程占内存用信息kb单位
   int memSize = memoryInfo[0].dalvikPrivateDirty;
   
   System.out.println("process name: " + processName + " pid: " + pid + " uid: " + uid + " memory size is -->" + memSize + "kb");
   
   //获得每个进程里运行的应用程序(包)，即每个应用程序的包名   
   String[] packageList = appProcessInfo.pkgList;
   for(String pkg : packageList){
    System.out.println("package name " + pkg + " in process id is -->" + pid);
   }
   
  }
  
  return appProcessList;
 }
 
 public List getRunningServiceInfo(){
  System.out.println("getRunningServiceInfo()...");
  
  List serviceList = activityManager.getRunningServices(30);
  
  for(int i=0; i<serviceList.size(); i++){
   RunningServiceInfo serviceInfo = (RunningServiceInfo) serviceList.get(i);
   //进程ID
   int pid = serviceInfo.pid;
   //用户ID，类似于Linux的权限不同，ID也就不同， 比如root
   int uid = serviceInfo.uid;
   //进程名，默认是包名或者由属性android:process=""指定
   String processName = serviceInfo.process;
      
   String serviceStr = serviceInfo.toString();
   System.out.println("serviceStr: " + serviceStr);
   
   //获得该进程占用的内存
   int[] memPid = new int[]{ pid };
   //此MemoryInfo位于android.os.Debug.MemoryInfo包中，用来统计进程的内存信息
   Debug.MemoryInfo[] memoryInfo = activityManager.getProcessMemoryInfo(memPid);
   //获取进程占内存用信息kb单位
   int memSize = memoryInfo[0].dalvikPrivateDirty;
   
   System.out.println("The name of the process this service runs in: " + processName + " pid: " + pid + " uid: " + uid + " memory size is -->" + memSize + "kb");
   
  }
  
  return serviceList;
 }
 
 public List getRunningTaskInfo(){
  System.out.println("getRunningServiceInfo()...");
  
  List taskList = activityManager.getRunningTasks(30);
  
  for(int i=0; i<taskList.size(); i++){
   RunningTaskInfo taskInfo = (RunningTaskInfo) taskList.get(i);
   String packageName = taskInfo.baseActivity.getPackageName();
   
   System.out.println("package name: " + packageName);
   
  }
  
  return taskList;
 }
 
}