我的Android进阶之旅------>Android实现用Android手机控制PC端的关机和重启的功能（三）Android客户端功能实现

2023-01-08 19:41:39

我的Android进阶之旅------>Android实现用Android手机控制PC端的关机和重启的功能（一）PC服务器端
(地址：http://blog.csdn.net/ouyang_peng/article/details/47004617)

我的Android进阶之旅------>Android实现用Android手机控制PC端的关机和重启的功能（二）Android客户端功能展示
（地址：http://blog.csdn.net/ouyang_peng/article/details/47005739）

通过以上两篇文章，我们了解了Android实现用Android手机控制PC端的关机和重启的的大概功能，现在我们来实现Android客户端的代码。

首先来看看整个项目的结构，如下图所示：

第一步：扫描局域网内所有PC,看是否有PC端的服务器在运行并监听30000端口。

此界面的布局文件为：/res/layout/layout_scanip.xml

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

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

    android:layout_width="match_parent"

    android:layout_height="match_parent" >

    <RelativeLayout

        android:id="@+id/ll"

        android:layout_width="200dp"

        android:layout_height="100dp"

        android:layout_centerHorizontal="true"

        android:layout_centerVertical="true"

        android:orientation="vertical" >

        <LinearLayout

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:layout_centerHorizontal="true"

            android:layout_centerVertical="true"

            android:orientation="vertical" >

            <TextView

                android:layout_width="wrap_content"

                android:layout_height="wrap_content"

                android:text="@string/scaning" />

            <ProgressBar

                android:id="@+id/progressBar"

                style="?android:attr/progressBarStyleHorizontal"

                android:layout_width="100dp"

                android:layout_height="1dp" />

        </LinearLayout>

    </RelativeLayout>

</RelativeLayout>

扫描IP的Activity为com.oyp.shutdown.ScanActivity，代码如下：

package com.oyp.shutdown;

import java.io.IOException;

import java.net.InetSocketAddress;

import java.net.Socket;

import android.app.Activity;

import android.content.Intent;

import android.os.Bundle;

import android.os.Handler;

import android.os.Message;

import android.view.Window;

import android.widget.ProgressBar;

import android.widget.Toast;

public class ScanActivity extends Activity {

	private MyWifiManager myWifiManager = null;

	private String serverIP = "", resultIP = "";

	private ScanIPThread scanThread = null;

	private ProgressBar progressBar;

	@Override

	protected void onCreate(Bundle savedInstanceState) {

		super.onCreate(savedInstanceState);

		getWindow().requestFeature(Window.FEATURE_NO_TITLE);

		int height = getWindow().getWindowManager().getDefaultDisplay()

				.getHeight();

		int width = getWindow().getWindowManager().getDefaultDisplay()

				.getWidth();

		setContentView(R.layout.layout_scanip);

		progressBar = (ProgressBar) findViewById(R.id.progressBar);

		myWifiManager = new MyWifiManager(ScanActivity.this);

		scanThread = new ScanIPThread();

		scanThread.start();

	}

	private Handler handler = new Handler() {

		@Override

		public void handleMessage(Message msg) {

			switch (msg.what) {

			case 1000:

				Toast.makeText(ScanActivity.this, getString(R.string.find),

						Toast.LENGTH_SHORT).show(); // 找到可连接PC

				Intent controlIntent = new Intent(ScanActivity.this,

						ControlActivity.class);

				// 将可以连接的ip发过去

				controlIntent.putExtra("ip", (String) msg.obj);

				startActivity(controlIntent);

				finish();

				break;

			case 2000:

				Toast.makeText(ScanActivity.this, getString(R.string.notFind),

						Toast.LENGTH_SHORT).show(); // 没有找到可连接PC

				Intent reScanIntent = new Intent(ScanActivity.this,

						ReScanActivity.class);

				startActivity(reScanIntent);

				finish();

				break;

			default:

				progressBar.setMax(254);

				progressBar.setProgress(msg.what);

				break;

			}

			super.handleMessage(msg);

		}

	};

	// 扫描连接的WiFi所在网段开启了30000端口的C类ip

	// 例如，wifi的ip是192.168.1.1 则扫描 192.168.1.1-192.168.1.254

	class ScanIPThread extends Thread {

		@Override

		public void run() {

			serverIP = myWifiManager.getServerIp();

			int t = serverIP.lastIndexOf(".") + 1;

			resultIP = serverIP.substring(0, t);

			boolean flag = false;

			for (int i = 1; i < 255; i++) {

				try {

					Socket socket = new Socket();

					InetSocketAddress s = new InetSocketAddress(resultIP + i,

							30000);

					socket.connect(s, 50);

					Message message = new Message();

					message.what = 1000;

					message.obj = resultIP + i;

					handler.sendMessage(message);

					flag = true;

					socket.close();

					break;

				} catch (IOException e) {

					handler.sendEmptyMessage(i);

				}

			}

			if (!flag) {

				handler.sendEmptyMessage(2000);

			}

			super.run();

		}

	}

}

第二步：如果没有扫描到有PC端的服务器在运行并监听30000端口，则重新扫描或者退出。如上述代码中，当msg.what=2000时，重新进行扫描。

此界面的布局文件为：/res/layout/layout_rescan.xml

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

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

    android:layout_width="wrap_content"

    android:layout_height="wrap_content"

    android:orientation="vertical" >

    <Button

        android:id="@id/btnReScan"

        style="@style/StyleButton"

        android:text="@string/rescan" />

    <Button

        android:id="@id/btnClose"

        style="@style/StyleButtonClose"

        android:text="@string/close" />

</LinearLayout>

重新扫描IP的Activity为com.oyp.shutdown.ReScanActivity，代码如下：

package com.oyp.shutdown;

import android.app.Activity;

import android.content.Intent;

import android.os.Bundle;

import android.view.View;

import android.view.View.OnClickListener;

import android.view.Window;

import android.widget.Button;

public class ReScanActivity extends Activity implements OnClickListener {

	private Button btn_rescan, btn_close;

	@Override

	protected void onCreate(Bundle savedInstanceState) {

		super.onCreate(savedInstanceState);

		getWindow().requestFeature(Window.FEATURE_LEFT_ICON);

		setContentView(R.layout.layout_rescan);

		getWindow().setFeatureDrawableResource(Window.FEATURE_LEFT_ICON,

				R.drawable.acticon);

		btn_rescan = (Button) findViewById(R.id.btnReScan);

		btn_close = (Button) findViewById(R.id.btnClose);

		btn_rescan.setOnClickListener(this);

		btn_close.setOnClickListener(this);

	}

	@Override

	public void onClick(View v) {

		switch (v.getId()) {

		case R.id.btnReScan:

			Intent intent = new Intent(ReScanActivity.this,ScanActivity.class);

			startActivity(intent);

			finish();

			break;

		case R.id.btnClose:

			finish();

			break;

		default:

			break;

		}

	}

}

第二步：扫描到了有PC端的服务器在运行并监听30000端口，则控制PC端关机、重启或者取消关机。如上述代码中，当msg.what=1000时，则打开控制PC端界面。

此界面的布局文件为：/res/layout/layout_control.xml

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

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

    android:layout_width="wrap_content"

    android:layout_height="wrap_content"

    android:orientation="vertical" >

    <Button

        android:id="@id/btnShutdown"

        style="@style/StyleButton"

        android:text="@string/shutdown" />

    <Button

        android:id="@id/btnReboot"

        style="@style/StyleButton"

        android:text="@string/reboot" />

    <Button

        android:id="@id/btnCancel"

        style="@style/StyleButton"

        android:text="@string/cancel" />

    <Button

        android:id="@id/btnClose"

        style="@style/StyleButtonClose"

        android:text="@string/close" />

    <TextView

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_gravity="center_horizontal"

        android:layout_marginBottom="6.0dip"

        android:text=" "

        android:textSize="12.0dip" />

</LinearLayout>

控制PC端的Activity为com.oyp.shutdown.ControlActivity，代码如下：

package com.oyp.shutdown;

import java.io.DataInputStream;

import java.io.DataOutputStream;

import java.io.IOException;

import java.net.Socket;

import android.app.Activity;

import android.content.Intent;

import android.os.Bundle;

import android.os.Handler;

import android.os.Message;

import android.view.View;

import android.view.View.OnClickListener;

import android.view.Window;

import android.widget.Button;

import android.widget.Toast;

public class ControlActivity extends Activity implements OnClickListener {

	private Button btn_shutdown, btn_restart, btn_cancel, btn_close;

	private Socket clientSocket;// 客户端socket

	private DataOutputStream dataOutput = null;// 客户端发送数据

	private DataInputStream dataInput = null;// 客户端接收数据

	private String connIP = "";

	private ConnThread connThread = null;

	private Handler handler = new Handler() {

		@Override

		public void handleMessage(Message msg) {

			switch (msg.what) {

			case 1:

				Toast.makeText(ControlActivity.this, (String) msg.obj,

						Toast.LENGTH_SHORT).show();

				break;

			default:

				break;

			}

			super.handleMessage(msg);

		}

	};

	@Override

	public void onCreate(Bundle savedInstanceState) {

		super.onCreate(savedInstanceState);

		getWindow().requestFeature(Window.FEATURE_LEFT_ICON);

		setContentView(R.layout.layout_control);

		getWindow().setFeatureDrawableResource(Window.FEATURE_LEFT_ICON,

				R.drawable.acticon);

		btn_shutdown = (Button) findViewById(R.id.btnShutdown);

		btn_restart = (Button) findViewById(R.id.btnReboot);

		btn_cancel = (Button) findViewById(R.id.btnCancel);

		btn_close = (Button) findViewById(R.id.btnClose);

		Intent intent = getIntent();

		connIP = intent.getStringExtra("ip");

		btn_shutdown.setOnClickListener(this);

		btn_restart.setOnClickListener(this);

		btn_cancel.setOnClickListener(this);

		btn_close.setOnClickListener(this);

	}

	@Override

	public void onClick(View v) {

		// 连接服务器

		switch (v.getId()) {

		case R.id.btnShutdown:

			final String shutdown = "shutdown";

			if (connThread != null) {

				connThread.interrupt();

			}

			connThread = new ConnThread(connIP, 30000, shutdown);

			connThread.start();

			break;

		case R.id.btnReboot:

			final String reboot = "reboot";

			if (connThread != null) {

				connThread.interrupt();

			}

			connThread = new ConnThread(connIP, 30000, reboot);

			connThread.start();

			break;

		case R.id.btnCancel:

			final String cancel = "cancel";

			if (connThread != null) {

				connThread.interrupt();

			}

			connThread = new ConnThread(connIP, 30000, cancel);

			connThread.start();

			break;

		case R.id.btnClose:

			finish();

			break;

		default:

			break;

		}

	}

	class ConnThread extends Thread {

		private String ip;

		private int port;

		private String content;

		public ConnThread(String ip, int port, String content) {

			this.ip = ip;

			this.port = port;

			this.content = content;

		}

		@Override

		public void run() {

			try {

				clientSocket = new Socket(ip, port);

				while (true) {

					dataOutput = new DataOutputStream(

							clientSocket.getOutputStream());

					dataInput = new DataInputStream(

							clientSocket.getInputStream());

					String msg = "";

					if ((dataOutput != null) && (!content.equals(""))) {

						dataOutput.writeUTF(content);

					}

					msg = dataInput.readUTF();

					if (msg != null && !"".equals(msg)) {

						Message message = new Message();

						message.what = 1;

						message.obj = msg;

						handler.sendMessage(message);

					}

				}

			} catch (Exception e) {

				e.printStackTrace();

			} finally {

				try {

					if (dataOutput != null) {

						dataOutput.close();

					}

					if (dataInput != null) {

						dataInput.close();

					}

					if (clientSocket != null) {

						clientSocket = null;

					}

				} catch (IOException e) {

					e.printStackTrace();

				}

			}

			super.run();

		}

	}

}

其中MyWifiManager.java代码如下：

package com.oyp.shutdown;

import android.content.Context;

import android.net.DhcpInfo;

import android.net.wifi.WifiInfo;

import android.net.wifi.WifiManager;

public class MyWifiManager {

	private WifiManager wifiManager;

	private WifiInfo wifiInfo;

	private DhcpInfo dhcpInfo;

	public MyWifiManager(Context context){

		wifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);

		wifiInfo = wifiManager.getConnectionInfo();

		dhcpInfo = wifiManager.getDhcpInfo();

	}

	//得到本机ip

	public String getLocalIp(){

		return FormatString(dhcpInfo.ipAddress);

	}

	//得到服务器ip（热点ip）

	public String getServerIp(){

		return FormatString(dhcpInfo.serverAddress);

	}

	//转换ip格式为*.*.*.*

	public String FormatString(int value){

		String strValue="";

		byte[] ary = intToByteArray(value);

		for(int i=ary.length-1;i>=0;i--){

			strValue+=(ary[i]&0xFF);

			if(i>0){

				strValue+=".";

			}

		}

		return strValue;

	}

	public byte[] intToByteArray(int value){

		byte[] b=new byte[4];

		for(int i=0;i<4;i++){

			int offset = (b.length-1-i)*8;

			b[i]=(byte) ((value>>>offset)&0xFF);

		}

		return b;

	}

}

定义控件ID的文件为/res/values/id.xml

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

<resources>

    <item type="id" name="btnAirplane">false</item>

    <item type="id" name="btnShutdown">false</item>

    <item type="id" name="btnReScan">false</item>

    <item type="id" name="btnCancel">false</item>

    <item type="id" name="btnReboot">false</item>

    <item type="id" name="btnRecovery">false</item>

    <item type="id" name="btnBootloader">false</item>

    <item type="id" name="btnClose">false</item>

</resources>

/res/values/strings.xml

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

<resources>

    <string name="app_name">控制PC</string>

    <string name="shutdown">关机</string>

    <string name="rescan">重新扫描</string>

    <string name="reboot">重启</string>

    <string name="cancel">取消</string>

    <string name="please_wait">请稍等......</string>

    <string name="warning">错误</string>

    <string name="root">无法获得 Root 权限！</string>

    <string name="close">退出</string>

    <string name="ok">确定</string>

    <string name="scaning">正在扫描......</string>

    <string name="find">找到可连接PC.</string>

    <string name="notFind">没有找到可连接PC</string>

</resources>

/res/values/styles.xml

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

<resources>

    <style name="StyleButton">

        <item name="android:textSize">16.0dip</item>

        <item name="android:textStyle">bold</item>

        <item name="android:textColor">#ffffffff</item>

        <item name="android:layout_gravity">center_horizontal</item>

        <item name="android:background">@drawable/btn_selector</item>

        <item name="android:layout_width">wrap_content</item>

        <item name="android:layout_height">wrap_content</item>

        <item name="android:layout_marginLeft">30.0dip</item>

        <item name="android:layout_marginRight">30.0dip</item>

        <item name="android:layout_marginBottom">8.0dip</item>

    </style>

    <style name="StyleButtonClose">

        <item name="android:textSize">16.0dip</item>

        <item name="android:textStyle">bold</item>

        <item name="android:textColor">#ffffffff</item>

        <item name="android:layout_gravity">center_horizontal</item>

        <item name="android:background">@drawable/btn_close_selector</item>

        <item name="android:layout_width">wrap_content</item>

        <item name="android:layout_height">wrap_content</item>

        <item name="android:layout_marginLeft">30.0dip</item>

        <item name="android:layout_marginRight">30.0dip</item>

        <item name="android:layout_marginBottom">8.0dip</item>

    </style>

</resources>

项目描述文件：AndroidManifest.xml

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

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

    package="com.oyp.shutdown"

    android:versionCode="1"

    android:versionName="1.0" >

    <uses-sdk android:minSdkVersion="8" />

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

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

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

    <application

        android:allowBackup="true"

        android:icon="@drawable/icon"

        android:label="@string/app_name" >

        <activity

            android:name=".ScanActivity"

            android:theme="@android:style/Theme.Dialog" >

             <intent-filter>

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

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

            </intent-filter>

        </activity>

        <activity

            android:name=".ReScanActivity"

            android:icon="@drawable/icon"

            android:label="@string/app_name"

            android:theme="@android:style/Theme.Dialog" >

        </activity>

        <activity

            android:name=".ControlActivity"

            android:icon="@drawable/icon"

            android:label="@string/app_name"

            android:theme="@android:style/Theme.Dialog" >

        </activity>

    </application>

</manifest>

代码可以在此处下载：Android实现用Android手机控制PC端的关机和重启的功能地址：（http://download.csdn.net/detail/qq446282412/8923991）

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转载请保留原文地址：http://blog.csdn.net/ouyang_peng

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