获取进程、服务、任务列表

获取进程、服务、任务列表  

|字号 订阅

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

1
2
private ActivityManager mActivityManager;
mActivityManager=(ActivityManager)getSystemService(ACTIVITY_SERVICE);

2 获取各列表

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
//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()));
    }
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
//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

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
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;
    }
}

结束。 从自己博客搬过来，样式有点难看。

posted on 2013-05-16 15:03  三少爷的剑123  阅读(135)  评论(0)    收藏  举报

导航