获取进程、服务、任务列表
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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
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private ActivityManager mActivityManager;mActivityManager=(ActivityManager)getSystemService(ACTIVITY_SERVICE); |
2 获取各列表
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//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())); } |
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//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
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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。