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;@Overrideprotected 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() {@Overridepublic 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PCIntent 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PCIntent 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 192.168.1.1-192.168.1.254class ScanIPThread extends Thread {@Overridepublic 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;@Overrideprotected 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);}@Overridepublic 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socketprivate 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() {@Overridepublic 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);}};@Overridepublic 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);}@Overridepublic 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;}@Overridepublic 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ippublic 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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  作者：欧阳鹏  欢迎转载，与人分享是进步的源泉！

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