android客户端在多个界面切换时保持socket的链接.docVIP

android客户端在多个界面切换时保持socket的链接 研究一个socket在多个界面切换时保持链接的问题，现在我提供客户端的源码给有需要的人参考。 1、ApplicationUtil类： import java.io.DataInputStream; import java.io.DataOutputStream; import java.io.IOException; import .Socket; import .UnknownHostException; import android.app.Application; public class ApplicationUtil extends Application{ private Socket socket; private DataOutputStream out = null; private DataInputStream in = null; public void init() throws IOException, Exception{ this.socket = new Socket(04,10202); this.out = new DataOutputStream(socket.getOutputStream()); this.in = new DataInputStream(socket.getInputStream()); } public Socket getSocket() { return socket; } public void setSocket(Socket socket) { this.socket = socket; } public DataOutputStream getOut() { return out; } public void setOut(DataOutputStream out) { this.out = out; } public DataInputStream getIn() { return in; } public void setIn(DataInputStream in) { this.in = in; } } 2、AndroidMainifest.xml中application的配置：manifest xmlns:android=/apk/res/android package=com.login android:versionCode=1 android:versionName=1.0 uses-sdk android:minSdkVersion=10 android:targetSdkVersion=15 / application android:name=com.util.ApplicationUtil android:icon=@drawable/ic_launcher android:label=@string/app_name android:theme=@style/AppTheme activity android:name=.LoginActivity android:label=@string/title_activity_main intent-filter action android:name=ent.action.MAIN / category android:name=ent.category.LAUNCHER / /intent-filter /activity activity android:name=.MainActivity/ /application !-- 振动需要的权限 -- uses-permission android:name=android.permission.VIBRATE/ !-- 声明网络权限 -- uses-permission android:name=android.permission.INTERNET/ /manifest 3、LoginActivity类：import java.io.BufferedWriter; import java.io.Da