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/*
* Copyright (C) 2011 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.settings.wifi.p2p;
import com.android.settings.R;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.net.wifi.p2p.WifiP2pManager;
import android.os.Message;
import android.preference.CheckBoxPreference;
import android.preference.Preference;
import android.provider.Settings;
import android.util.Log;
/**
* WifiP2pEnabler is a helper to manage the Wifi p2p on/off
*/
public class WifiP2pEnabler implements Preference.OnPreferenceChangeListener {
private static final String TAG = "WifiP2pEnabler";
private final Context mContext;
private final CheckBoxPreference mCheckBox;
private final IntentFilter mIntentFilter;
private WifiP2pManager mWifiP2pManager;
private WifiP2pManager.Channel mChannel;
private final BroadcastReceiver mReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if (WifiP2pManager.WIFI_P2P_STATE_CHANGED_ACTION.equals(action)) {
handleP2pStateChanged(intent.getIntExtra(
WifiP2pManager.EXTRA_WIFI_STATE, WifiP2pManager.WIFI_P2P_STATE_DISABLED));
}
}
};
public WifiP2pEnabler(Context context, CheckBoxPreference checkBox) {
mContext = context;
mCheckBox = checkBox;
mWifiP2pManager = (WifiP2pManager) context.getSystemService(Context.WIFI_P2P_SERVICE);
if (mWifiP2pManager != null) {
mChannel = mWifiP2pManager.initialize(mContext, mContext.getMainLooper(), null);
if (mChannel == null) {
//Failure to set up connection
Log.e(TAG, "Failed to set up connection with wifi p2p service");
mWifiP2pManager = null;
mCheckBox.setEnabled(false);
}
} else {
Log.e(TAG, "mWifiP2pManager is null!");
}
mIntentFilter = new IntentFilter(WifiP2pManager.WIFI_P2P_STATE_CHANGED_ACTION);
}
public void resume() {
if (mWifiP2pManager == null) return;
mContext.registerReceiver(mReceiver, mIntentFilter);
mCheckBox.setOnPreferenceChangeListener(this);
}
public void pause() {
if (mWifiP2pManager == null) return;
mContext.unregisterReceiver(mReceiver);
mCheckBox.setOnPreferenceChangeListener(null);
}
public boolean onPreferenceChange(Preference preference, Object value) {
if (mWifiP2pManager == null) return false;
mCheckBox.setEnabled(false);
final boolean enable = (Boolean) value;
if (enable) {
mWifiP2pManager.enableP2p(mChannel);
} else {
mWifiP2pManager.disableP2p(mChannel);
}
return false;
}
private void handleP2pStateChanged(int state) {
mCheckBox.setEnabled(true);
switch (state) {
case WifiP2pManager.WIFI_P2P_STATE_ENABLED:
mCheckBox.setChecked(true);
break;
case WifiP2pManager.WIFI_P2P_STATE_DISABLED:
mCheckBox.setChecked(false);
break;
default:
Log.e(TAG,"Unhandled wifi state " + state);
break;
}
}
}
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