所以我有一个注册Android应用程序，在主活动中创建一个套接字连接创建opensocket（）。一切都在第一次提交时完美运行，调试器输出看起来很棒，它从我的WPF应用程序发回/接收数据。现在进入感谢活动，onclick导致我的主要活动。现在，当我点击提交，它工作正常，但显示它击中我的套接字方法两次（只在我的WPF应用程序上插入一次记录），等等我提交的次数。我意识到我没有正确关闭或重新使用我的套接字连接？！我尝试了几件事，但似乎无法重复使用相同的opensocket实例，或者只是关闭并重新启动重新加载。我对Android和套接字都很陌生，非常感谢任何帮助！
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
settingsCheck();
openSocket();
sett.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
launchSettings();
}
});
mainLogo.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
RefreshMain();
}
});
btn_register.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
tv_errors.setText("");
errorMsg = "";
nameCheck(et_lName.getText().toString(),et_fName.getText().toString());
emailCheck(et_email.getText().toString());
partnerCheck();
mobileCheck(et_mobile.getText().toString());
if (SocketHandler.SocketConnected){
if(errorMsg == ""){
//tv_errors.setText("");
if(checkForSD() == true){
sendRegistrantInfo(et_fName.getText() + "," + et_lName.getText() + "," + et_email.getText() + "," + et_mobile.getText() + "," + et_partEmail.getText() + "," + cb_terms1.isChecked() + "," + cb_terms2.isChecked() );
}
else{
tv_errors.setText("**Please insert an SD Card.");
}
}
else{
//tv_errors.setText(errorMsg);
}
}
else
{
connectionStatus.setText("Connection Error.");
tv_errors.setText("**Connection lost, please try again.");
//openSocket();
}
}
});
}
public void RefreshMain()
{
Intent intent = new Intent(this, MainActivity.class);
startActivity(intent);
}
public void launchLogin()
{
Intent intent = new Intent(this, LoginActivity.class);
startActivity(intent);
}//end launchLogin
public void launchSettings()
{
Intent intent = new Intent(this, SettingsActivity.class);
startActivity(intent);
}//end launchSettings
public void settingsCheck()
{
SharedPreferences settings = getSharedPreferences("prefs",MODE_PRIVATE);
String currentIP = settings.getString("IPSetting", "");
String currentPort = settings.getString("PORTSetting", "");
currentMem = settings.getString("SDSize", "");
if (currentIP == "" || currentPort == ""){
Intent myIntent = new Intent(this,SettingsActivity.class);
startActivity(myIntent);
}
}//end settingsCheck()
public void launchRingDialog(String id) {
final String idYo = id;
final ProgressDialog ringProgressDialog = ProgressDialog.show(MainActivity.this, "Formatting SD Card","Formatting SD Card, please wait this could take several minutes...", true);
new Thread(new Runnable() {
@Override
public void run() {
try {
fileToSD(idYo);
Thread.sleep(10000);
} catch (Exception e) {
}
ringProgressDialog.dismiss();
}
}).start();
}
public boolean checkForSD()
{
String root = "/storage/removable/sdcard1/";
double memInGigs = round(sizeMatters(root),2);
if(memInGigs >0){
return true;
}
else
{
return false;
}
}
private double sizeMatters(String path)
{
StatFs stat = new StatFs(path);
double availSize = (double)stat.getAvailableBlocks() * (double)stat.getBlockSize();
double ingigs = availSize/ 1073741824;
return ingigs;
}//end sizeMatters()
private void sendRegistrantInfo(String reg){
_sh.sendMessage(reg);
}
private void openSocket(){
_sh = new SocketHandler();
_sh.setSocketHandlerListener(this);
SharedPreferences settings = getSharedPreferences("prefs",MODE_PRIVATE);
String currentIP = settings.getString("IPSetting", "");
String currentPort = settings.getString("PORTSetting", "");
_sh.open(currentIP, currentPort);
}
@Override
protected void onPause() {
super.onPause();
}
@Override
protected void onResume() {
super.onResume();
}
@Override
public void onSocketConnected() {
Log.v(TAG, "onSocketConnected");
connectionStatus.setText("CONNECTED");
}
@Override
public void onSocketData(String msg) {
Log.v(TAG, "onSocketData - " + msg );
int usrID = Integer.parseInt(msg.trim());
if (msg != null & usrID > 0){
launchRingDialog(msg);
Intent intent = new Intent(this, ThanksActivity.class);
startActivity(intent);
}
else if(msg.trim().equals("-2") == true)
{
tv_errors.setText("**This email has already been registered for this event, please click Already Registered button to sign in.");
}
else{
tv_errors.setText("**Error, Please try submitting again.");
errorMsg = "-1";
}
}
@Override
public void onSocketDisconnected() {
Log.v(TAG, "onSocketDisconnected");
connectionStatus.setText("DISCONNECTED");
}
public class SocketHandler {
Socket sc;
public static boolean SocketConnected = false;
private static ClientThread cThread;
public String prefsFile = "prefs";
public String port = "8888";
public String ip = "192.168.1.4";
private String TAG = "SocketHandler";
protected SocketHandlerListener socketHandlerListener;
public interface SocketHandlerListener{
public void onSocketConnected();
public void onSocketData(String msg);
public void onSocketDisconnected();
}
public SocketHandler(){
}
public void setSocketHandlerListener(SocketHandlerListener shl){
socketHandlerListener = shl;
}
public void open(String ip, String port){
this.ip = ip;
this.port = port;
cThread = new ClientThread();
try{
cThread.start();
}catch (Exception ex){
Log.v(TAG, "Error connecting to socket");
}
}
public void close(){
if (cThread != null){
if (cThread.socket != null){
try {
cThread.socket.close();
} catch (Exception e) {
Log.v(TAG, "Error closing socket");
}
cThread.socket = null;
}
}
}
public void sendMessage(String msg){
cThread.sendMessage(msg);
}
public void messageRecieved(String msg){
dispatchSocketData(msg);
}
private void dispatchSocketConnected(){
if (socketHandlerListener != null){
socketHandlerListener.onSocketConnected();
}
}
private void dispatchSocketDisconnected(){
if (socketHandlerListener != null){
socketHandlerListener.onSocketDisconnected();
}
}
private void dispatchSocketData(String msg){
if (socketHandlerListener != null){
socketHandlerListener.onSocketData(msg);
}
}
public class ClientThread extends Thread {
public Socket socket;
public void run() {
try {
InetAddress serverAddr = InetAddress.getByName(ip);
Log.v(TAG, "C: Connecting..." + ip + ":" + port);
socket = new Socket(serverAddr, Integer.parseInt(port));
socket.setSoTimeout(0);
socket.setKeepAlive(true);
SocketConnected = true;
handler.post(new Runnable() {
@Override
public void run() {
dispatchSocketConnected();
}
});
// BLOCKING THE THREAD
while (SocketConnected) {
InputStream in = socket.getInputStream();
byte[] buffer = new byte[4096];
int line = in.read(buffer, 0, 4096);
while (line != -1) {
byte[] tempdata = new byte[line];
System.arraycopy(buffer, 0, tempdata, 0, line);
final String data = new String(tempdata);
handler.post(new Runnable() {
@Override
public void run() {
messageRecieved(data);
SocketConnected = false;
}
});
line = in.read(buffer, 0, 4096);
}
// break;
}
socket.close();
Log.v("Socket", "C: Closed.");
handler.post(new Runnable() {
@Override
public void run() {
dispatchSocketDisconnected();
}
});
SocketConnected = false;
} catch (Exception e) {
Log.v("Socket", "C: Error", e);
handler.post(new Runnable() {
@Override
public void run() {
dispatchSocketDisconnected();
}
});
SocketConnected = false;
}
}
Handler handler = new Handler();
public void sendMessage(String msg){
if (socket != null){
if (socket.isConnected()){
PrintWriter out;
try {
out = new PrintWriter(new BufferedWriter(new OutputStreamWriter(socket.getOutputStream())), false);
out.print(msg);
out.flush();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
}
}