小弟我的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

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

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。

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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();		}	}}

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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  作者：欧阳鹏  欢迎转载，与人分享是进步的源泉！

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