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;
}
}
