优质课设- 基于STM32+RFID设计的宿舍门禁系统 Android端手机APP（皆可应用在毕设/课设/大作业/实训/项目等）

package com.example.liyi.ui; import android.app.AlertDialog; import android.content.BroadcastReceiver; import android.content.Context; import android.content.DialogInterface; import android.content.Intent; import android.content.IntentFilter; import android.net.ConnectivityManager; import android.net.NetworkInfo; import android.net.wifi.ScanResult; import android.net.wifi.WifiConfiguration; import android.net.wifi.WifiInfo; import android.net.wifi.WifiManager; import android.os.Bundle; import android.os.Handler; import android.os.Message; import android.support.v7.app.AppCompatActivity; import android.text.TextUtils; import android.util.Log; import android.view.View; import android.widget.AdapterView; import android.widget.Button; import android.widget.EditText; import android.widget.ListView; import android.widget.TextView; import com.example.liyi.ui.adapter.User_list_adapter; import com.example.liyi.ui.data.Users; import com.example.liyi.ui.thread.ConnectThread; import com.example.liyi.ui.thread.ListenerThread; import java.io.BufferedReader; import java.io.FileReader; import java.io.IOException; import java.lang.reflect.InvocationTargetException; import java.lang.reflect.Method; import java.net.Socket; import java.util.ArrayList; import java.util.List; import android.app.AlertDialog; import android.content.BroadcastReceiver; import android.content.Context; import android.content.DialogInterface; import android.content.Intent; import android.content.IntentFilter; import android.net.ConnectivityManager; import android.net.NetworkInfo; import android.net.wifi.ScanResult; import android.net.wifi.WifiConfiguration; import android.net.wifi.WifiInfo; import android.net.wifi.WifiManager; import android.os.Bundle; import android.os.Handler; import android.os.Message; import android.support.v7.app.AppCompatActivity; import android.text.TextUtils; import android.util.Log; import android.view.View; import android.widget.AdapterView; import android.widget.Button; import android.widget.EditText; import android.widget.ListView; import android.widget.TextView; //import com.xiaoniu.wifihotspotdemo.adapter.WifiListAdapter; import com.example.liyi.ui.thread.ConnectThread; import com.example.liyi.ui.thread.ListenerThread; import java.io.BufferedReader; import java.io.FileReader; import java.io.IOException; import java.lang.reflect.InvocationTargetException; import java.lang.reflect.Method; import java.net.Socket; import java.util.ArrayList; import java.util.List; public class SecondActivity extends AppCompatActivity implements View.OnClickListener{ private static String ss; private ListView listView; private Button btn_create_hostspot; private Button btn_close_hostspot; private Button btn_send; private Button btn_search; private TextView textview; private TextView text_state; private User_list_adapter user_list_adapter; private WifiManager wifiManager; // private WifiListAdapter wifiListAdapter; private WifiConfiguration config; private int wcgID; /** * 热点名称 */ private static final String WIFI_HOTSPOT_SSID = "TEST"; /** * 端口号 */ private static final int PORT = 8086; private static final int WIFICIPHER_NOPASS = 1; private static final int WIFICIPHER_WEP = 2; private static final int WIFICIPHER_WPA = 3; public static final int DEVICE_CONNECTING = 1;//有设备正在连接热点 public static final int DEVICE_CONNECTED = 2;//有设备连上热点 public static final int SEND_MSG_SUCCSEE = 3;//发送消息成功 public static final int SEND_MSG_ERROR = 4;//发送消息失败 public static final int GET_MSG = 6;//获取新消息 private ConnectThread connectThread; private ListenerThread listenerThread; private int c1,c2,c3; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_second); initVIew(); c1=c2=c3=0; initBroadcastReceiver(); wifiManager = (WifiManager) getApplicationContext().getSystemService(Context.WIFI_SERVICE); listenerThread = new ListenerThread(PORT, handler); listenerThread.start(); } private void initVIew() { btn_send = (Button) findViewById(R.id.btn_send); text_state = (TextView) findViewById(R.id.text_state); btn_send.setOnClickListener(this); listView=(ListView) findViewById(R.id.teacher_listView); user_list_adapter = new User_list_adapter(this, R.layout.user_item, Users.getAllTeachers()); listView.setAdapter(user_list_adapter); } private void connect(WifiConfiguration config) { text_state.setText("连接中..."); wcgID = wifiManager.addNetwork(config); wifiManager.enableNetwork(wcgID, true); } private void initBroadcastReceiver() { IntentFilter intentFilter = new IntentFilter(); intentFilter.addAction(WifiManager.SCAN_RESULTS_AVAILABLE_ACTION); intentFilter.addAction(WifiManager.WIFI_STATE_CHANGED_ACTION); intentFilter.addAction(WifiManager.NETWORK_STATE_CHANGED_ACTION); intentFilter.addAction(ConnectivityManager.CONNECTIVITY_ACTION); // intentFilter.addAction(WifiManager.RSSI_CHANGED_ACTION); registerReceiver(receiver, intentFilter); } //按钮事件以及调用connect线程 @Override public void onClick(View v) { switch (v.getId()) { /* case R.id.btn_create_hostspot: createWifiHotspot(); break; case R.id.btn_close_hostspot: closeWifiHotspot(); break; */ case R.id.btn_send: if (connectThread != null) { connectThread.sendData("1"); }else{ Log.w("AAA","connectThread == null"); } break; /* case R.id.btn_search: search(); break; */ } } /** * 创建Wifi热点 */ private void createWifiHotspot() { if (wifiManager.isWifiEnabled()) { //如果wifi处于打开状态，则关闭wifi, wifiManager.setWifiEnabled(false); } WifiConfiguration config = new WifiConfiguration(); config.SSID = WIFI_HOTSPOT_SSID; config.preSharedKey = "123456789"; config.hiddenSSID = true; config.allowedAuthAlgorithms .set(WifiConfiguration.AuthAlgorithm.OPEN);//开放系统认证 config.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.TKIP); config.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.WPA_PSK); config.allowedPairwiseCiphers .set(WifiConfiguration.PairwiseCipher.TKIP); config.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.CCMP); config.allowedPairwiseCiphers .set(WifiConfiguration.PairwiseCipher.CCMP); config.status = WifiConfiguration.Status.ENABLED; //通过反射调用设置热点 try { Method method = wifiManager.getClass().getMethod( "setWifiApEnabled", WifiConfiguration.class, Boolean.TYPE); boolean enable = (Boolean) method.invoke(wifiManager, config, true); if (enable) { textview.setText("热点已开启 SSID:" + WIFI_HOTSPOT_SSID + " password:123456789"); } else { textview.setText("创建热点失败"); } } catch (Exception e) { e.printStackTrace(); textview.setText("创建热点失败"); } } /** * 关闭WiFi热点 */ public void closeWifiHotspot() { try { Method method = wifiManager.getClass().getMethod("getWifiApConfiguration"); method.setAccessi