27、获取运行时信息（包括运行时的service、运行任务、正在运行的进程信息）

-------------------------------main.java------------------------

package com.example.running;

import java.util.ArrayList;

import java.util.HashMap;

import java.util.List;

import java.util.Map;

import android.content.Intent;

import android.os.Bundle;

import android.support.v7.app.ActionBarActivity;

import android.util.Log;

import android.view.View;

import android.widget.AdapterView;

import android.widget.AdapterView.OnItemClickListener;

import android.widget.ListView;

import android.widget.SimpleAdapter;

public class MainActivity extends ActionBarActivity implements OnItemClickListener {

public static final int RunningService = 1;

public static final int RunningTasks = 2;

public static final int RunningProcesses = 3;

ListView itemlist = null;

List<Map<String, Object>> list;

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

setTitle("运行时信息");

itemlist = (ListView) findViewById(R.id.itemlist);

refreshListItems();

}

private void refreshListItems() {

list = buildListForSimpleAdapter();

SimpleAdapter notes = new SimpleAdapter(this, list, R.layout.info_row,

new String[] { "name", "desc" }, new int[] { R.id.name,

R.id.desc });

itemlist.setAdapter(notes);

itemlist.setOnItemClickListener(this);

itemlist.setSelection(0);

}

private List<Map<String, Object>> buildListForSimpleAdapter() {

List<Map<String, Object>> list = new ArrayList<Map<String, Object>>(3);

// Build a map for the attributes

Map<String, Object> map = new HashMap<String, Object>();

map = new HashMap<String, Object>();

map.put("id", MainActivity.RunningService);

map.put("name", "运行的service");

map.put("desc", "正在运行的后台服务.");

list.add(map);

map = new HashMap<String, Object>();

map.put("id", MainActivity.RunningTasks);

map.put("name", "运行任务");

map.put("desc", "正在运行的任务.");

list.add(map);

map = new HashMap<String, Object>();

map.put("id", MainActivity.RunningProcesses);

map.put("name", "进程信息");

map.put("desc", "正在运行的进程.");

list.add(map);

return list;

}

@Override

public void onItemClick(AdapterView<?> parent, View v, int position, long id) {

Intent intent = new Intent();

Bundle info = new Bundle();

Map<String, Object> map = list.get(position);

info.putInt("id", (Integer) map.get("id"));

info.putString("name", (String) map.get("name"));

info.putString("desc", (String) map.get("desc"));

intent.putExtra("android.intent.extra.info", info);

intent.setClass(MainActivity.this, ShowInfoActivity.class);

startActivityForResult(intent, 0);

}

}

----------------------------------ShowInfoActivity.java----------------------------

package com.example.running;

import android.app.Activity;

import android.app.ProgressDialog;

import android.content.Intent;

import android.os.Bundle;

import android.os.Handler;

import android.os.Message;

import android.util.Log;

import android.widget.TextView;

public class ShowInfoActivity extends Activity implements Runnable {

private static final String TAG = "ShowInfo";

TextView info;

TextView title;

private ProgressDialog pd;

public String info_datas;

public boolean is_valid = false;

public int _id = 0;

public String _name = "";

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.showinfo);

revParams();

info = (TextView) findViewById(R.id.info);

title = (TextView) findViewById(R.id.title);

setTitle("eoeInfosAssistant: " + _name);

title.setText(_name);

load_data();

}

private void load_data() {

pd = ProgressDialog.show(this, "Please Wait a moment..",

"fetch info datas...", true, false);

Thread thread = new Thread(this);

thread.start();

}

// 接收传递进来的信息

private void revParams() {

Log.i(TAG, "revParams.");

Intent startingIntent = getIntent();

if (startingIntent != null) {

Bundle infod = startingIntent

.getBundleExtra("android.intent.extra.info");

if (infod == null) {

is_valid = false;

} else {

_id = infod.getInt("id");

_name = infod.getString("name");

is_valid = true;

}

} else {

is_valid = false;

}

}

@Override

public void run() {

switch (_id) {

case MainActivity.RunningProcesses:

info_datas = FetchData.fetch_process_info();

break;

case MainActivity.RunningService:

info_datas = FetchData.getRunningServicesInfo(this);

break;

case MainActivity.RunningTasks:

info_datas = FetchData.getRunningTasksInfo(this);

break;

}

handler.sendEmptyMessage(0);

}

private Handler handler = new Handler() {

public void handleMessage(Message msg) {

pd.dismiss();

info.setText(info_datas);

}

};

}

---------------------------FetchData.java--------------------------------

package com.example.running;

import java.io.IOException;

import java.text.DateFormat;

import java.text.SimpleDateFormat;

import java.util.Date;

import java.util.Iterator;

import java.util.List;

import android.app.ActivityManager;

import android.app.ActivityManager.RunningServiceInfo;

import android.app.ActivityManager.RunningTaskInfo;

import android.content.Context;

import android.util.Log;

public class FetchData {

private static StringBuffer buffer;

// fetch_process_info

public static String fetch_process_info() {

Log.i("fetch_process_info", "start....");

String result = null;

CMDExecute cmdexe = new CMDExecute();

try {

String[] args = { "/system/bin/top", "-n", "1" };

result = cmdexe.run(args, "/system/bin/");

} catch (IOException ex) {

Log.i("fetch_process_info", "ex=" + ex.toString());

}

return result;

}

//RunningServicesInfo

public static String getRunningServicesInfo(Context context) {

StringBuffer serviceInfo = new StringBuffer();

final ActivityManager activityManager = (ActivityManager) context

.getSystemService(Context.ACTIVITY_SERVICE);

List<RunningServiceInfo> services = activityManager.getRunningServices(100);

Iterator<RunningServiceInfo> l = services.iterator();

while (l.hasNext()) {

RunningServiceInfo si = (RunningServiceInfo) l.next();

serviceInfo.append("pid: ").append(si.pid);

serviceInfo.append("\nprocess: ").append(si.process);

serviceInfo.append("\nservice: ").append(si.service);

serviceInfo.append("\ncrashCount: ").append(si.crashCount);

serviceInfo.append("\nclientCount: ").append(si.clientCount);

serviceInfo.append("\nactiveSince: ").append(FetchData.formatData(si.activeSince));

serviceInfo.append("\nlastActivityTime: ").append(FetchData.formatData(si.lastActivityTime));

serviceInfo.append("\n\n");

}

return serviceInfo.toString();

}

//RunningServicesInfo

public static String getRunningTasksInfo(Context context) {

StringBuffer sInfo = new StringBuffer();

final ActivityManager activityManager = (ActivityManager) context

.getSystemService(Context.ACTIVITY_SERVICE);

List<RunningTaskInfo> tasks = activityManager.getRunningTasks(100);

Iterator<RunningTaskInfo> l = tasks.iterator();

while (l.hasNext()) {

RunningTaskInfo ti = (RunningTaskInfo) l.next();

sInfo.append("id: ").append(ti.id);

sInfo.append("\nbaseActivity: ").append(ti.baseActivity.flattenToString());

sInfo.append("\nnumActivities: ").append(ti.numActivities);

sInfo.append("\nnumRunning: ").append(ti.numRunning);

sInfo.append("\ndescription: ").append(ti.description);

sInfo.append("\n\n");

}

return sInfo.toString();

}

// formart data long to string

public static String formatData(long data) {

Date d = new Date(data);

DateFormat format2 = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");

String str = format2.format(d);

return str;

}

}

------------------------CMDExecute.java--------------------------

package com.example.running;

import java.io.File;

import java.io.IOException;

import java.io.InputStream;

public class CMDExecute {

public synchronized String run(String[] cmd, String workdirectory)

throws IOException {

String result = "";

try {

ProcessBuilder builder = new ProcessBuilder(cmd);

// set working directory

if (workdirectory != null)

builder.directory(new File(workdirectory));

builder.redirectErrorStream(true);

Process process = builder.start();

InputStream in = process.getInputStream();

byte[] re = new byte[1024];

while (in.read(re) != -1) {

System.out.println(new String(re));

result = result + new String(re);

}

in.close();

} catch (Exception ex) {

ex.printStackTrace();

}

return result;

}

}

。。。。。。。。。main.xml。。。。。。。。。。。。。

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

android:orientation="vertical" android:layout_width="fill_parent"

android:layout_height="fill_parent">

<ListView

android:layout_width="fill_parent"

android:layout_height="fill_parent"

android:id="@+id/itemlist" />

</LinearLayout>

。。。。。。。。。。。。info_row.xml。。。。。。。。。。。。

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout

xmlns:android="http://schemas.android.com/apk/res/android"

android:id="@+id/vw1"

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:padding="4px"

android:orientation="horizontal">

<LinearLayout

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:orientation="vertical">

<TextView android:id="@+id/name"

android:textSize="18sp"

android:textStyle="bold"

android:layout_width="fill_parent"

android:layout_height="wrap_content"/>

<TextView android:id="@+id/desc"

android:textSize="14sp"

android:layout_width="fill_parent"

android:paddingLeft="20px"

android:layout_height="wrap_content"/>

</LinearLayout>

</LinearLayout>

。。。。。。。。。showinfo.xml。。。。。。。。。。。。。

<?xml version="1.0" encoding="utf-8"?>

<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"

android:layout_width="fill_parent"

android:layout_height="wrap_content">

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

android:orientation="vertical"

android:layout_width="fill_parent"

android:layout_height="fill_parent"

android:padding="20px"

>

<TextView android:id="@+id/title"

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:textSize="20sp"

android:paddingBottom="8dip"

android:text="" />

<TextView android:id="@+id/info"

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:text="" />

</LinearLayout>

</ScrollView>

、、、、、、、、、权限、因为要获取运行任务，所以加以下这条权限、、、、

<uses-permission android:name="android.permission.GET_TASKS"></uses-permission>