android编程实现设置、打开wifi热点共享供他人连接的方法

package com.tel.lajoin.wifi.hotspot;import java.lang.reflect.Method;import android.app.Activity;import android.content.Context;import android.net.wifi.WifiConfiguration;import android.net.wifi.WifiManager;import android.os.Bundle;import android.view.View;import android.widget.Button;public class HotspotActivity extends Activity {  private WifiManager wifiManager;  private Button open;  private boolean flag=false;  @Override  protected void onCreate(Bundle savedInstanceState) {    // TODO Auto-generated method stub    super.onCreate(savedInstanceState);    setContentView(R.layout.main);    //获取wifi管理服务    wifiManager = (WifiManager) getSystemService(Context.WIFI_SERVICE);    open=(Button)findViewById(R.id.open_hotspot);    //通过按钮事件设置热点    open.setOnClickListener(new View.OnClickListener() {      @Override      public void onClick(View v) {        //如果是打开状态就关闭，如果是关闭就打开        flag=!flag;        setWifiApEnabled(flag);      }    });  }  // wifi热点开关  public boolean setWifiApEnabled(boolean enabled) {    if (enabled) { // disable WiFi in any case      //wifi和热点不能同时打开，所以打开热点的时候需要关闭wifi      wifiManager.setWifiEnabled(false);    }    try {      //热点的配置类      WifiConfiguration apConfig = new WifiConfiguration();      //配置热点的名称(可以在名字后面加点随机数什么的)      apConfig.SSID = "YRCCONNECTION";      //配置热点的密码      apConfig.preSharedKey="12122112";        //通过反射调用设置热点      Method method = wifiManager.getClass().getMethod(          "setWifiApEnabled", WifiConfiguration.class, Boolean.TYPE);      //返回热点打开状态      return (Boolean) method.invoke(wifiManager, apConfig, enabled);    } catch (Exception e) {      return false;    }  }}

package com.tel.lajoin.wifiscan; import java.util.ArrayList; import java.util.List; import android.app.Activity; import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.content.IntentFilter; import android.net.wifi.ScanResult; import android.net.wifi.WifiConfiguration; import android.net.wifi.WifiManager; import android.os.Bundle; public class MainActivity extends Activity {  private List<ScanResult> wifiList;  private WifiManager wifiManager;  private List<String> passableHotsPot;  private WifiReceiver wifiReceiver;  private boolean isConnected=false;  private Button connect;  @Override  public void onCreate(Bundle savedInstanceState) {   super.onCreate(savedInstanceState);   init();  }  /* 初始化参数 */  public void init() {   setContentView(R.layout.main);   connect=(Button)findViewById(R.id.connect);   wifiManager = (WifiManager) getSystemService(Context.WIFI_SERVICE);   wifiReceiver = new WifiReceiver();   //通过按钮事件搜索热点   connect.setOnClickListener(new View.OnClickListener() {    @Override    public void onClick(View v) {     wifiManager.startScan();    }   });   }  /* 监听热点变化 */  private final class WifiReceiver extends BroadcastReceiver {   @Override   public void onReceive(Context context, Intent intent) {    wifiList = wifiManager.getScanResults();    if (wifiList == null || wifiList.size() == 0 || isConnected)     return;    onReceiveNewNetworks(wifiList);   }  }  /*当搜索到新的wifi热点时判断该热点是否符合规格*/  public void onReceiveNewNetworks(List<ScanResult> wifiList){   passableHotsPot=new ArrayList<String>();   for(ScanResult result:wifiList){    System.out.println(result.SSID);    if((result.SSID).contains("YRCCONNECTION"))     passableHotsPot.add(result.SSID);   }   synchronized (this) {    connectToHotpot();   }  }  /*连接到热点*/  public void connectToHotpot(){   if(passableHotsPot==null || passableHotsPot.size()==0)    return;   WifiConfiguration wifiConfig=this.setWifiParams(passableHotsPot.get(0));   int wcgID = wifiManager.addNetwork(wifiConfig);   boolean flag=wifiManager.enableNetwork(wcgID, true);   isConnected=flag;   System.out.println("connect success? "+flag);  }  /*设置要连接的热点的参数*/  public WifiConfiguration setWifiParams(String ssid){   WifiConfiguration apConfig=new WifiConfiguration();   apConfig.SSID="/""+ssid+"/"";   apConfig.preSharedKey="/"12122112/"";   apConfig.hiddenSSID = true;   apConfig.status = WifiConfiguration.Status.ENABLED;   apConfig.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.TKIP);   apConfig.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.CCMP);   apConfig.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.WPA_PSK);   apConfig.allowedPairwiseCiphers.set(WifiConfiguration.PairwiseCipher.TKIP);   apConfig.allowedPairwiseCiphers.set(WifiConfiguration.PairwiseCipher.CCMP);   apConfig.allowedProtocols.set(WifiConfiguration.Protocol.RSN);   return apConfig;  }  @Override  protected void onDestroy() {   super.onDestroy();   /*销毁时注销广播*/   unregisterReceiver(wifiReceiver);  } }