首先也是要建立一个javabean

package com.itheima.bean;import android.graphics.drawable.Drawable;public class TaskInfo {    private Drawable icon;    private String name;    private String size;    private boolean isUser;    public Drawable getIcon() {        return icon;    }    public void setIcon(Drawable icon) {        this.icon = icon;    }    public String getName() {        return name;    }    public void setName(String name) {        this.name = name;    }    public String getSize() {        return size;    }    public void setSize(String size) {        this.size = size;    }    public boolean isUser() {        return isUser;    }    public void setUser(boolean isUser) {        this.isUser = isUser;    }    @Override    public String toString() {        return "TaskInfo [name=" + name + ", size=" + size                + ", isUser=" + isUser + "]";    }}

然后通过activitymanager来获取运行中程序的list集合

通过遍历集合获得包名，

在通过packagemanager和包名来获得其他信息

package com.itheima.engine;import java.util.ArrayList;import java.util.List;import android.app.ActivityManager;import android.app.ActivityManager.RunningAppProcessInfo;import android.content.Context;import android.content.pm.ApplicationInfo;import android.content.pm.PackageManager;import android.content.pm.PackageManager.NameNotFoundException;import android.graphics.drawable.Drawable;import android.os.Debug.MemoryInfo;import android.text.format.Formatter;import com.itheima.bean.TaskInfo;import com.itheima.superman.R;public class TaskInfoProvider {    private static String packageName;    public static List
     
      getTaskInfo(Context context){        List
      
        list = new ArrayList
       
        ();            ActivityManager am = (ActivityManager) context                .getSystemService(Context.ACTIVITY_SERVICE);        PackageManager pm = context.getPackageManager();        List
        
          runningAppProcesses = am.getRunningAppProcesses();        for (RunningAppProcessInfo runningAppProcessInfo : runningAppProcesses) {            TaskInfo task = null;            try {                task = new TaskInfo();                packageName = runningAppProcessInfo.processName;                //得到图标                Drawable loadIcon = pm.getPackageInfo(packageName, 0).applicationInfo.loadIcon(pm);                task.setIcon(loadIcon);                //得到名称                task.setName(pm.getPackageInfo(packageName, 0).applicationInfo.loadLabel(pm).toString());                //是不是用户程序                int flag = pm.getPackageInfo(packageName, 0).applicationInfo.flags;                if((flag&ApplicationInfo.FLAG_SYSTEM)==0){                    task.setUser(true);                }else{                    task.setUser(false);                }                //得要程序占用运行内存                MemoryInfo processMemoryInfo = am.getProcessMemoryInfo(new int[]{runningAppProcessInfo.pid})[0];                String size = Formatter.formatFileSize(context, processMemoryInfo.getTotalPrivateDirty()*1024);                task.setSize(size);            } catch (NameNotFoundException e) {                // TODO Auto-generated catch block                e.printStackTrace();                //系统中有些程序是用C语言写的没有图标和名字                task.setIcon(context.getResources().getDrawable(R.drawable.ic_launcher));                task.setName(packageName);            }            list.add(task);        }        return list;            }}