我正在编写一个示例应用程序来在 Android 上创建一个服务器和一个连接到 PC 的客户端。我将 serversocket 放在服务的线程中。一切都很顺利，直到屏幕关闭几分钟后。这可能是 Android 杀死了我的服务器，我试图对我的代码设置一个完整的唤醒锁，但它不会再杀死了，但是，我确实希望屏幕像往常一样熄灭。这是我的代码：
public class MessageListener extends Service {
private ServerSocket serverSocket;
@Override
public void onCreate() {
Log.v("Test", "Create service");
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
PowerManager.WakeLock wl=null;
PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
wl = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "My Tag");
wl.acquire();
startServer();
if(wl!=null) wl.release();
return START_STICKY;
}
private Runnable thread = new Runnable() {
@Override
public synchronized void run() {
try {
serverSocket = new ServerSocket(Integer.parseInt(5000));
ObjectInputStream in = null;
while (true) {
Socket client = serverSocket.accept();
Log.v("TCP", "S: Receiving...");
try {
in = new ObjectInputStream(client.getInputStream());
DataInController data = new DataInController(
getApplicationContext());
data.processDataIn(in.readObject(), client);
} catch (ClassNotFoundException e) {
System.out.println("TCP S: Error in PC Server Listener");
e.printStackTrace();
} finally {
client.close();
}
}
} catch (IOException e) {
}
}
};
private Thread serverThread;
private synchronized void startServer() {
if (serverThread == null) {
serverThread = new Thread(thread);
serverThread.start();
}
}
private synchronized void stopServer() {
if(serverThread!=null){
Thread t=serverThread;
serverThread=null;
t.interrupt();
}
}
@Override
public IBinder onBind(Intent intent) {
return null;
}
@Override
public void onDestroy() {
super.onDestroy();
Log.v("TCP", "Killing Service!!!!!!!!!!!!!!!!!!!!!!!");
if (serverSocket != null) {
try {
serverSocket.close();
stopServer();
Log.v("TCP", "Closed server socket");
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}