Android Web server implementation (4) interface update

Android Web server implementation (3) HTTP Response implements HTTP response. How can I control the interface? Only a few simple options are required for interface control.

1. Configure the root path of the web service.

2. Configure the port.

3. Start and Stop the service.

The following is the implementation code.

MainActivity. java

package com.sparkle.webservice;import java.net.InetAddress;import android.annotation.SuppressLint;import android.app.Activity;import android.content.Context;import android.os.Bundle;import android.os.Handler;import android.os.Message;import android.text.InputType;import android.util.Log;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;import android.widget.EditText;import android.widget.TextView;public class MainActivity extends Activity {private Button _startStop_button = null;private EditText _root_text = null;private TextView _ip_text = null;private EditText _port_text = null;private MyLog _myLog = new MyLog(getClass().getName());@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main_activity);Init();}@Overrideprotected void onStart() {// TODO Auto-generated method stubsuper.onStart();UiUpdater.registerClient(_handler);}@Overrideprotected void onResume() {// TODO Auto-generated method stubsuper.onResume();UiUpdater.registerClient(_handler);}@Overrideprotected void onPause() {// TODO Auto-generated method stubsuper.onPause();UiUpdater.unregisterClient(_handler);}@Overrideprotected void onStop() {// TODO Auto-generated method stubsuper.onStop();UiUpdater.unregisterClient(_handler);}@Overrideprotected void onDestroy() {// TODO Auto-generated method stubsuper.onDestroy();UiUpdater.unregisterClient(_handler);}private void Init() {FetchUIControls();BindingEvnents();InitUI();}private void FetchUIControls() {_startStop_button = (Button) findViewById(R.id.startStop_button);_root_text = (EditText) findViewById(R.id.root_text);_ip_text = (TextView) findViewById(R.id.ip_text);_port_text = (EditText) findViewById(R.id.port_text);}private void BindingEvnents() {if (_startStop_button != null) {_startStop_button.setOnClickListener(new ClickListener());}}private void InitUI() {if (_root_text != null) {_root_text.setText(Defaults.getRoot());}if (_port_text != null) {_port_text.setText(String.format("%1d",Defaults.getPort()));}}@SuppressLint("HandlerLeak")private Handler _handler = new Handler() {@Overridepublic void handleMessage(Message msg) {switch (msg.what) {case MESSAGES.UPDATE_UI:UpdateUi();break;default:break;}}};public void UpdateUi() {if (WebServer.isRunning()) {_myLog.l(Log.DEBUG, "updateUi: server is running", true);_startStop_button.setText(R.string.stop);_root_text.setEnabled(false);_port_text.setEnabled(false);_root_text.setInputType(InputType.TYPE_NULL);_port_text.setInputType(InputType.TYPE_NULL);InetAddress address = WebServer.getWifiIp(MainActivity.this);if (address != null) {_ip_text.setText("http://" + address.getHostAddress() + ":"+ WebServer.getPort() + "/");} else {_myLog.l(Log.VERBOSE, "Null address from getServerAddress()",true);_ip_text.setText(R.string.can_not_get_ip);}} else {_startStop_button.setText(R.string.start);_ip_text.setText(R.string.can_not_get_ip);_root_text.setEnabled(true);_port_text.setEnabled(true);_root_text.setInputType(InputType.TYPE_CLASS_TEXT);_port_text.setInputType(InputType.TYPE_CLASS_NUMBER);}}private class ClickListener implements OnClickListener {@Overridepublic void onClick(View v) {switch (v.getId()) {case R.id.startStop_button: {StartOrStop();break;}default: {break;}}}private void StartOrStop() {try {String startString = getString(R.string.start);String stopString = getString(R.string.stop);String buttonText = _startStop_button.getText().toString();if (buttonText.equals(startString)) {Start();} else if (buttonText.equals(stopString)) {Stop();} else {// Do nothing_myLog.l(Log.ERROR, "Unrecognized start/stop text");}} catch (Exception e) {// TODO: handle exception}}private void Start() {InitSetting();StartListen();}private void InitSetting() {Defaults.setRoot(_root_text.getText().toString());Defaults.setPort(Integer.parseInt(_port_text.getText().toString()));}private void StartListen() {Context context = getApplicationContext();WebServer.Start(context);}private void Stop() {Context context = getApplicationContext();WebServer.Stop(context);}}}

Note:

1. Use Handler to communicate and update the message interface.

2. Use UiUpdater to manage handler.

UiUpdater. java

package com.sparkle.webservice;import java.util.ArrayList;import java.util.List;import android.os.Handler;public class UiUpdater {protected static MyLog myLog = new MyLog("UiUpdater");protected static List
 
   clients = new ArrayList
  
   ();public static void registerClient(Handler client) {if(!clients.contains(client)) {clients.add(client);}}public static void unregisterClient(Handler client) {while(clients.contains(client)) {clients.remove(client);}}public static void updateClients() {for (Handler client : clients) {client.sendEmptyMessage(MESSAGES.UPDATE_UI);}}}
  
 

Related permissions:

Implemented

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