显示所有APP的进程详细信息（进程ID、进程所在UID、进程占用内存、进程名）

main.xml

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

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

    android:layout_width="fill_parent"

    android:layout_height="fill_parent"

    android:gravity="center_vertical"

    android:orientation="vertical" >



    <LinearLayout

        android:layout_width="fill_parent"

        android:layout_height="wrap_content"

        android:layout_marginBottom="50dip"

        android:layout_marginLeft="10dip"

        android:orientation="horizontal" >



        <TextView

            android:layout_width="120dip"

            android:layout_height="wrap_content"

            android:text="系统可用内存为：" />



        <TextView

            android:id="@+id/tvAvailMemory"

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:textColor="#FFD700" />

    </LinearLayout>



    <Button

        android:id="@+id/btProcessInfo"

        android:layout_width="fill_parent"

        android:layout_height="wrap_content"

        android:text="查看系统进程信息" />



</LinearLayout>

browse_process_list.xml

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

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

    android:layout_width="fill_parent"

    android:layout_height="fill_parent"

    android:orientation="vertical" >

    <TextView

        android:id="@+id/tvTotalProcessNo"

        android:layout_width="fill_parent"

        android:layout_height="30dip"

        android:textSize="20sp" />

    <ListView

        android:id="@+id/listviewProcess"

        android:layout_width="fill_parent"

        android:layout_height="fill_parent"

        android:layout_marginTop="10dip" />



</LinearLayout>

 

browse_process_item.xml

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

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

    android:layout_width="fill_parent"

    android:layout_height="80dip"

    android:orientation="vertical" >



    <LinearLayout

        android:layout_width="fill_parent"

        android:layout_height="wrap_content"

        android:layout_marginLeft="10dip"

        android:orientation="horizontal" >

        <TextView

            android:layout_width="100dip"

            android:layout_height="wrap_content"

            android:text="进程ID : " />

        <TextView

            android:id="@+id/tvProcessPID"

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:layout_marginLeft="3dip"

            android:textColor="#FFD700" />

    </LinearLayout>



    <LinearLayout

        android:layout_width="fill_parent"

        android:layout_height="wrap_content"

        android:layout_marginLeft="10dip"

        android:orientation="horizontal" >

        <TextView

            android:layout_width="100dip"

            android:layout_height="wrap_content"

            android:text="进程所在UID:" />

        <TextView

            android:id="@+id/tvProcessUID"

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:textColor="#FFD700" />

    </LinearLayout>



    <LinearLayout

        android:layout_width="fill_parent"

        android:layout_height="wrap_content"

        android:layout_marginLeft="10dip"

        android:orientation="horizontal" >

        <TextView

            android:layout_width="100dip"

            android:layout_height="wrap_content"

            android:text="进程占用内存:" />

        <TextView

            android:id="@+id/tvProcessMemSize"

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:textColor="#FFD700" />

    </LinearLayout>



    <LinearLayout

        android:layout_width="fill_parent"

        android:layout_height="wrap_content"

        android:layout_marginLeft="10dip"

        android:orientation="horizontal" >

        <TextView

            android:layout_width="100dip"

            android:layout_height="wrap_content"

            android:text="进程名:" />

        <TextView

            android:id="@+id/tvProcessName"

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:textColor="#FFD700" />

    </LinearLayout>



</LinearLayout>

 

ProcessInfo.java

package com.qin.ammp;



//Model类

public class ProcessInfo {



    // 进程id  Android规定android.system.uid=1000

    private int pid; 

    // 进程所在的用户id ，即该进程是有谁启动的 root/普通用户等

    private int uid; 

    // 进程占用的内存大小,单位为kb

    private int memSize; 

    // 进程名

    private String processName; 

    

    public ProcessInfo(){}

    

    public int getPid() {

        return pid;

    }



    public void setPid(int pid) {

        this.pid = pid;

    }



    public int getUid() {

        return uid;

    }



    public void setUid(int uid) {

        this.uid = uid;

    }



    public int getMemSize() {

        return memSize;

    }



    public void setMemSize(int memSize) {

        this.memSize = memSize;

    }



    public String getProcessName() {

        return processName;

    }



    public void setPocessName(String processName) {

        this.processName = processName;

    }



}

 

MainActivity.java

package com.qin.ammp;





import android.app.Activity;

import android.app.ActivityManager;

import android.app.ActivityManager.MemoryInfo;

import android.content.Context;

import android.content.Intent;

import android.os.Bundle;

import android.text.format.Formatter;

import android.util.Log;

import android.view.View;

import android.widget.Button;

import android.widget.TextView;



public class MainActivity extends Activity {

    

    private static String TAG = "AM_MEMORYIPROCESS" ;

    

    private ActivityManager mActivityManager = null ;

    

    private TextView tvAvailMem  ;

    private Button btProcessInfo ;

    

    @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.main);

        

        tvAvailMem = (TextView)findViewById(R.id.tvAvailMemory) ;

        btProcessInfo =(Button)findViewById(R.id.btProcessInfo);

        //跳转到显示进程信息界面

        btProcessInfo.setOnClickListener(new View.OnClickListener() {

            

            @Override

            public void onClick(View v) {

                Intent intent = new Intent(MainActivity.this,BrowseProcessInfoActivity.class);

                startActivity(intent);

            }

        });               

        

        //获得ActivityManager服务的对象

        mActivityManager = (ActivityManager)getSystemService(Context.ACTIVITY_SERVICE);

      

        //获得可用内存信息

        String availMemStr = getSystemAvaialbeMemorySize();

        Log.i(TAG, "The Availabel Memory Size is"+availMemStr); 

        //显示

        tvAvailMem.setText(availMemStr); 

        

    }

    //获得系统可用内存信息

    private String getSystemAvaialbeMemorySize(){

        //获得MemoryInfo对象

        MemoryInfo memoryInfo = new MemoryInfo() ;

        //获得系统可用内存，保存在MemoryInfo对象上

        mActivityManager.getMemoryInfo(memoryInfo) ;

        long memSize = memoryInfo.availMem ;

        

        //字符类型转换

        String availMemStr = formateFileSize(memSize);

        

        return availMemStr ;

    }

  

    //调用系统函数，字符串转换 long -String KB/MB

    private String formateFileSize(long size){

        return Formatter.formatFileSize(MainActivity.this, size); 

    }

    

}

 

BrowseProcessInfoActivity.java

package com.qin.ammp;



import java.util.ArrayList;

import java.util.List;

import android.app.Activity;

import android.app.ActivityManager;

import android.app.AlertDialog;

import android.content.Context;

import android.content.DialogInterface;

import android.os.Bundle;

import android.os.Debug;

import android.util.Log;

import android.view.ContextMenu;

import android.view.MenuItem;

import android.view.View;

import android.view.ContextMenu.ContextMenuInfo;

import android.widget.AdapterView;

import android.widget.ListView;

import android.widget.TextView;

import android.widget.AdapterView.OnItemClickListener;



public class BrowseProcessInfoActivity extends Activity  implements OnItemClickListener{



    private static String TAG = "ProcessInfo";

    private static final int KILL_PORCESS = 1;

    private static final int SEARCH_RUNNING_APP = 2;



    private ActivityManager mActivityManager = null;

    // ProcessInfo Model类 用来保存所有进程信息

    private List<ProcessInfo> processInfoList = null;



    private ListView listviewProcess;

    private TextView tvTotalProcessNo ; 

    

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);



        setContentView(R.layout.browse_process_list);



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

        listviewProcess.setOnItemClickListener(this);

        

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

        

        this.registerForContextMenu(listviewProcess);

        // 获得ActivityManager服务的对象

        mActivityManager = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);

        // 获得系统进程信息

        getRunningAppProcessInfo();

        // 为ListView构建适配器对象

        BrowseProcessInfoAdapter mprocessInfoAdapter = new BrowseProcessInfoAdapter(

                this, processInfoList);

        listviewProcess.setAdapter(mprocessInfoAdapter);

    

        tvTotalProcessNo.setText("当前系统进程共有："+processInfoList.size());

    }

    //杀死该进程，并且刷新

    @Override

    public void onItemClick(AdapterView<?> arg0, View arg1,  final int position, long arg3) {

        // TODO Auto-generated method stub

        new AlertDialog.Builder(this).setMessage("是否杀死该进程")

        .setPositiveButton("确定", new DialogInterface.OnClickListener() {

            

            @Override

            public void onClick(DialogInterface dialog, int which) {

                // TODO Auto-generated method stub

                //杀死该进程，释放进程占用的空间

                mActivityManager.killBackgroundProcesses(processInfoList.get(position).getProcessName());

                //刷新界面

                getRunningAppProcessInfo() ;

                BrowseProcessInfoAdapter mprocessInfoAdapter = new BrowseProcessInfoAdapter(

                        BrowseProcessInfoActivity.this, processInfoList);

                listviewProcess.setAdapter(mprocessInfoAdapter);

                tvTotalProcessNo.setText("当前系统进程共有："+processInfoList.size());



            }

        }).setNegativeButton("取消", new DialogInterface.OnClickListener() {

            

            @Override

            public void onClick(DialogInterface dialog, int which) {

                // TODO Auto-generated method stub

                dialog.cancel() ;

            }

        }).create().show() ;

    }

    

    /**

     * 获得系统进程信息

     */ 

    private void getRunningAppProcessInfo() {

        // ProcessInfo Model类   用来保存所有进程信息

        processInfoList = new ArrayList<ProcessInfo>();



        // 通过调用ActivityManager的getRunningAppProcesses()方法获得系统里所有正在运行的进程

        List<ActivityManager.RunningAppProcessInfo> appProcessList = mActivityManager

                .getRunningAppProcesses();



        for (ActivityManager.RunningAppProcessInfo appProcessInfo : appProcessList) {

            // 进程ID号

            int pid = appProcessInfo.pid;

            // 用户ID 类似于Linux的权限不同，ID也就不同 比如 root等

            int uid = appProcessInfo.uid;

            // 进程名，默认是包名或者由属性android：process=""指定

            String processName = appProcessInfo.processName;

            // 获得该进程占用的内存

            int[] myMempid = new int[] { pid };

            // 此MemoryInfo位于android.os.Debug.MemoryInfo包中，用来统计进程的内存信息

            Debug.MemoryInfo[] memoryInfo = mActivityManager

                    .getProcessMemoryInfo(myMempid);

            // 获取进程占内存用信息 kb单位

            int memSize = memoryInfo[0].dalvikPrivateDirty;



            Log.i(TAG, "processName: " + processName + "  pid: " + pid

                    + " uid:" + uid + " memorySize is -->" + memSize + "kb");

            // 构造一个ProcessInfo对象

            ProcessInfo processInfo = new ProcessInfo();

            processInfo.setPid(pid);

            processInfo.setUid(uid);

            processInfo.setMemSize(memSize);

            processInfo.setPocessName(processName);

            processInfoList.add(processInfo);



            // 获得每个进程里运行的应用程序(包),即每个应用程序的包名

            String[] packageList = appProcessInfo.pkgList;

            Log.i(TAG, "process id is " + pid + "has " + packageList.length);

            for (String pkg : packageList) {

                Log.i(TAG, "packageName " + pkg + " in process id is -->"

                                + pid);

            }

        }

    }



    public void onCreateContextMenu(ContextMenu menu, View v,

            ContextMenuInfo menuInfo) {

        menu.add(0, 0, KILL_PORCESS, "杀死该进程");

        menu.add(0, 0, SEARCH_RUNNING_APP, "运行在该进程的应用程序");

        super.onCreateContextMenu(menu, v, menuInfo);



    }



    public boolean onContextItemSelected(MenuItem item) {

        switch (item.getItemId()) {

        case KILL_PORCESS: // 杀死该进程 ， 重新加载界面

            new AlertDialog.Builder(this).setMessage("是否杀死该进程")

            .setPositiveButton("确定", new DialogInterface.OnClickListener() {

                

                @Override

                public void onClick(DialogInterface dialog, int which) {

                    // TODO Auto-generated method stub

                    

                }

            }).setNegativeButton("取消", new DialogInterface.OnClickListener() {

                

                @Override

                public void onClick(DialogInterface dialog, int which) {

                    // TODO Auto-generated method stub

                    dialog.cancel() ;

                }

            }).create().show() ;

            break;

        case SEARCH_RUNNING_APP: // 查看运行在该进程的应用程序信息

            break;

        default:

            break;

        }

        return super.onContextItemSelected(item);

    }



}

 

BrowseProcessInfoAdapter.java

package com.qin.ammp;



import java.util.List;

import android.content.Context;

import android.view.LayoutInflater;

import android.view.View;

import android.view.ViewGroup;

import android.widget.BaseAdapter;

import android.widget.TextView;



//自定义适配器类，提供给listView的自定义view

public class BrowseProcessInfoAdapter extends BaseAdapter   {

    

    private List<ProcessInfo> mlistProcessInfo = null;

    

    LayoutInflater infater = null;

    

    public BrowseProcessInfoAdapter(Context context,  List<ProcessInfo> apps) {

        infater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);

        mlistProcessInfo = apps ;

    }

    @Override

    public int getCount() {

        System.out.println("size" + mlistProcessInfo.size());

        return mlistProcessInfo.size();

    }

    @Override

    public Object getItem(int position) {

        return mlistProcessInfo.get(position);

    }



    @Override

    public long getItemId(int position) {

        return 0;

    }

    @Override

    public View getView(int position, View convertview, ViewGroup arg2) {

        System.out.println("getView at " + position);

        View view = null;

        ViewHolder holder = null;

        if (convertview == null || convertview.getTag() == null) {

            view = infater.inflate(R.layout.browse_process_item, null);

            holder = new ViewHolder(view);

            view.setTag(holder);

        } 

        else{

            view = convertview ;

            holder = (ViewHolder) convertview.getTag() ;

        }

        ProcessInfo processInfo = (ProcessInfo) getItem(position);

        holder.tvPID.setText(processInfo.getPid() +"");

        holder.tvUID.setText(processInfo.getUid() +"") ;

        holder.tvProcessMemSize.setText(processInfo.getMemSize()+"KB");

        holder.tvProcessName.setText(processInfo.getProcessName());

            

        return view;

    }



    class ViewHolder {

        TextView tvPID ;             //进程ID

        TextView tvUID ;             //用户ID   

        TextView tvProcessMemSize ;  //进程占用内存大小 

        TextView tvProcessName ;   // 进程名

        public ViewHolder(View view) {

            this.tvPID = (TextView)view.findViewById(R.id.tvProcessPID) ;

            this.tvUID = (TextView) view.findViewById(R.id.tvProcessUID);

            this.tvProcessMemSize = (TextView) view.findViewById(R.id.tvProcessMemSize);

            this.tvProcessName = (TextView)view.findViewById(R.id.tvProcessName) ;

        }

    }



}

 

AndroidManifest.xml

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

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

      package="com.qin.ammp"

      android:versionCode="1"

      android:versionName="1.0">

    <application android:icon="@drawable/icon" android:label="@string/app_name">

        <activity android:name=".MainActivity"

                  android:label="@string/app_name">

            <intent-filter>

                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />

            </intent-filter>

        </activity>

        <activity android:name=".BrowseProcessInfoActivity"></activity>

    </application>



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



</manifest>