Android Open Source - WifiHotspotBTEnabler Hotspot Utilities

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License

The source code is released under:

GNU General Public License

Java Source Code

package ca.diogosoares.android.utilities;
//from w ww. j a  v a2s.c o m
import java.lang.reflect.Method;
import java.util.ArrayList;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.net.wifi.WifiConfiguration;
import android.net.wifi.WifiManager;
import android.util.Log;
import ca.diogosoares.android.listeners.HotspotUtilitiesListener;

/**
 * 
 * Require permissions for :
 * android.permission.ACCESS_WIFI_STATE
 * android.permission.CHANGE_WIFI_STATE
 * android.permission.UPDATE_DEVICE_STATE
 * android.net.wifi.WIFI_AP_STATE_CHANGED
 * 
 * @author Diogo Soares, 02/2014
 */
public class HotspotUtilities {
  public static final String WIFI_AP_STATE_CHANGED_ACTION = "android.net.wifi.WIFI_AP_STATE_CHANGED";
  
  public static final String EXTRA_WIFI_AP_STATE = "wifi_state";
  public static final String EXTRA_PREVIOUS_WIFI_AP_STATE = "previous_wifi_state";
  
  public static final int WIFI_AP_STATE_DISABLING = 10;
  public static final int WIFI_AP_STATE_DISABLED = 11;
  public static final int WIFI_AP_STATE_ENABLING = 12;
  public static final int WIFI_AP_STATE_ENABLED = 13;
  public static final int WIFI_AP_STATE_FAILED = 14;
  
  private Context mContext = null;
  
  private ArrayList<HotspotUtilitiesListener> mListeners = null;
  
  private int mWifiState = WIFI_AP_STATE_DISABLED;
  private int mPreviousWifiState = WIFI_AP_STATE_DISABLED;
  
  private final BroadcastReceiver mReceiver = new BroadcastReceiver() {
      @Override
      public void onReceive(Context context, Intent intent) {
            String action = intent.getAction();
            
            if (WIFI_AP_STATE_CHANGED_ACTION.equals(action)) {
              mWifiState = intent.getIntExtra(EXTRA_WIFI_AP_STATE, WIFI_AP_STATE_FAILED);
              mPreviousWifiState = intent.getIntExtra(EXTRA_PREVIOUS_WIFI_AP_STATE, WIFI_AP_STATE_FAILED);
              
              for(HotspotUtilitiesListener listener:mListeners)
                listener.onWifiAPStateChanged();
            }
        }
    };
  
  
  public HotspotUtilities(Context context) {
    mContext = context;
    mContext.registerReceiver(mReceiver, new IntentFilter(WIFI_AP_STATE_CHANGED_ACTION));
    
    mListeners = new ArrayList<HotspotUtilitiesListener>();
  }
  
  public void setListener(HotspotUtilitiesListener listener) { this.mListeners.add(listener);  }
  public void removeListener(HotspotUtilitiesListener listener) { this.mListeners.remove(listener); }
  
  /**
   * Activate or deactivate the Wifi hotspot
   * 
   * @param enable
   */
  public void setEnableWifiHotspot(boolean enable) {
    WifiManager wifiManager = (WifiManager) mContext.getSystemService(Context.WIFI_SERVICE);

    try {
      Method method = wifiManager.getClass().getMethod("setWifiApEnabled", WifiConfiguration.class, boolean.class);

      // keep this order.. Wifi cannot be turned on when AP is on
      if (enable) {
        //wifiManager.setWifiEnabled(false);
        method.invoke(wifiManager, null, true);
      } else {
        method.invoke(wifiManager, null, false);
        //wifiManager.setWifiEnabled(true);
      }
    } catch (Exception e) {
      Log.e("TetherSettings::setWifiHotspotTetheringEnabled", e.getCause().getMessage());
    }
  }
  
  public int getWifiAPState() { return this.mWifiState; }
  public int getPreviousWifiState() { return this.mPreviousWifiState; }
  
  public static String getWifiAPStateString(int state) {
    switch (state) {
    case HotspotUtilities.WIFI_AP_STATE_DISABLED:
      return "Disabled";
    case HotspotUtilities.WIFI_AP_STATE_DISABLING:
      return "Disabling";
    case HotspotUtilities.WIFI_AP_STATE_ENABLED:
      return "Enabled";
    case HotspotUtilities.WIFI_AP_STATE_ENABLING:
      return "Enabling";
    case HotspotUtilities.WIFI_AP_STATE_FAILED:
      return "Failed";
    default:
      return "Unknown";
    }
  }
}

Java Source Code List

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