android 获取当前线程,Android获取当前正在运行的线程和使用的内存

package cn.itcast.mobilesafe.ui;

import java.util.List;

import android.app.Activity;

import android.app.ActivityManager;

import android.app.ActivityManager.MemoryInfo;

import android.app.ActivityManager.RunningAppProcessInfo;

import android.os.Bundle;

import android.view.Window;

import android.widget.TextView;

import cn.itcast.mobilesafe.R;

import cn.itcast.mobilesafe.util.TextFormat;

public class TastManagerActivity extends Activity {

private TextView tv_task_count;

private TextView tv_task_memory;

private ActivityManager am;

private List runningAppProcessInfoList;

@Override

protected void onCreate(Bundle savedInstanceState) {

// TODO Auto-generated method stub

super.onCreate(savedInstanceState);

am = (ActivityManager) getSystemService(ACTIVITY_SERVI