android 获取进程、服务、任务列表



获取进程列表，需使用ActivityManager中的方法获取进程名；再根据进程名，获取应用程序的ApplicationInfo对象；用ApplicationInfo中的方法为进程加载图标和程序名称。获取服务、任务列表方法同上。

1
实例化ActivityManager

private ActivityManager mActivityManager;

mActivityManager=(ActivityManager)getSystemService(ACTIVITY_SERVICE);

2
获取各列表

//获取任务列表

public void getTasks()

{

aryListTaskID=new ArrayList<String>();

aryListTaskName=new ArrayList<String>();

//以getRunningTasks()取得进程TaskInfo

List<ActivityManager.RunningTaskInfo> mRunningTasks=

mActivityManager.getRunningTasks(intGetTaskCounter);

for(ActivityManager.RunningTaskInfo amTask:mRunningTasks)

{

aryListTaskName.add(amTask.baseActivity.getClassName());

aryListTaskID.add(""+amTask.id);

intTaskNum++;

}

tab3_tv1.setText("任务数量："+intTaskNum);

tab3_tv2.setText("可用内存："+fileSize(getAvailableRAM()));

}

//获取服务列表

public void getService()

{

linkListServiceIcon=new LinkedList<Drawable>();

aryListServiceInfo=new ArrayList<String>();

aryListServiceName=new ArrayList<String>();

List<ActivityManager.RunningServiceInfo> serivces =

mActivityManager.getRunningServices(intGetServiceCounter);

for (RunningServiceInfo service:serivces)

{

programUtil.setProcessName(service.process);

//
根据进程名，获取应用程序的ApplicationInfo对象

ApplicationInfo tempAppInfo = packageUtil.getApplicationInfo(service.process);

//
为进程加载图标和程序名称

if (tempAppInfo != null)

{

linkListServiceIcon.add(tempAppInfo.loadIcon(packageManager));

aryListServiceName.add(tempAppInfo.loadLabel(packageManager).toString());

}

else

{

linkListServiceIcon.add(getApplicationContext().getResources().getDrawable(R.drawable.ic_launcher));

aryListServiceName.add(service.process);

}

//MemInfo是否可得,不行则用包名代替

if(!(mProcessMemoryUtil.getMemInfoByPid(service.pid)==""))

{

aryListServiceInfo.add(mProcessMemoryUtil.getMemInfoByPid(service.pid));

}

else

{

aryListServiceInfo.add(service.process);

}

intServiceNum++;

}

tab2_tv1.setText("服务数量："+intServiceNum);

tab2_tv2.setText("可用内存："+fileSize(getAvailableRAM()));

}

//获取进程列表

public void getProcess()

{

linkListProcessIcon=new LinkedList<Drawable>();

aryListProcessInfo=new ArrayList<String>();

aryListProcessName=new ArrayList<String>();

List<RunningAppProcessInfo> apps =

mActivityManager.getRunningAppProcesses();

for(RunningAppProcessInfo app:apps)

{

//包名

// aryListProcessName.add(app.processName);

programUtil.setProcessName(app.processName);

//
根据进程名，获取应用程序的ApplicationInfo对象

ApplicationInfo tempAppInfo = packageUtil.getApplicationInfo(app.processName);

//
为进程加载图标和程序名称

if (tempAppInfo != null)

{

linkListProcessIcon.add(tempAppInfo.loadIcon(packageManager));

aryListProcessName.add(tempAppInfo.loadLabel(packageManager).toString());

}

else

{

linkListProcessIcon.add(getApplicationContext().getResources().getDrawable(R.drawable.ic_launcher));

aryListProcessName.add(app.processName);

}

//MemInfo是否可得,不行则用包名代替

if(!(mProcessMemoryUtil.getMemInfoByPid(app.pid)==""))

{

aryListProcessInfo.add(mProcessMemoryUtil.getMemInfoByPid(app.pid));

}

else

{

aryListProcessInfo.add(app.processName);

}

intProcessNum++;

}

tab1_tv1.setText("程序数量："+intProcessNum);

tab1_tv2.setText("可用内存："+fileSize(getAvailableRAM()));

}

3 PackageUtil.java :
通过一个程序名返回该程序的一个ApplicationInfo对象

package com.me.myexplorer;

import java.util.List;

import android.content.Context;

import android.content.pm.ApplicationInfo;

import android.content.pm.PackageManager;

public class PackageUtil

{

// ApplicationInfo
类，保存了普通应用程序的信息，主要是指Manifest.xml中application标签中的信息

private List<ApplicationInfo> allAppList;

public PackageUtil(Context context) {

//
通过包管理器，检索所有的应用程序（包括卸载）与数据目录

PackageManager pm = context.getApplicationContext().getPackageManager();

allAppList = pm.getInstalledApplications(PackageManager.GET_UNINSTALLED_PACKAGES);

pm.getInstalledPackages(0);

}

public ApplicationInfo getApplicationInfo(String appName) {

if (appName == null) {

return null;

}

for (ApplicationInfo appinfo : allAppList) {

if (appName.equals(appinfo.processName)) {

return appinfo;

}

}

return null;

}

}