src/com/android/settings/deviceinfo/Status.java - platform/packages/apps/Settings - Git at Google

 /*
  * Copyright (C) 2008 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.deviceinfo;

 import android.bluetooth.BluetoothAdapter;
 import android.content.BroadcastReceiver;
 import android.content.Context;
 import android.content.Intent;
 import android.content.IntentFilter;
 import android.content.res.Resources;
 import android.net.ConnectivityManager;
 import android.net.wifi.WifiInfo;
 import android.net.wifi.WifiManager;
 import android.os.Bundle;
 import android.os.Handler;
 import android.os.Message;
 import android.os.SystemClock;
 import android.os.SystemProperties;
 import android.os.UserManager;
 import android.support.v7.preference.Preference;
 import android.support.v7.preference.PreferenceScreen;
 import android.text.TextUtils;

 import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
 import com.android.internal.util.ArrayUtils;
 import com.android.settings.R;
 import com.android.settings.SettingsPreferenceFragment;
 import com.android.settings.Utils;

 import java.lang.ref.WeakReference;

 import static android.content.Context.CONNECTIVITY_SERVICE;
 import static android.content.Context.WIFI_SERVICE;

 public class Status extends SettingsPreferenceFragment {

     private static final String KEY_BATTERY_STATUS = "battery_status";
     private static final String KEY_BATTERY_LEVEL = "battery_level";
     private static final String KEY_IP_ADDRESS = "wifi_ip_address";
     private static final String KEY_WIFI_MAC_ADDRESS = "wifi_mac_address";
     private static final String KEY_BT_ADDRESS = "bt_address";
     private static final String KEY_WIMAX_MAC_ADDRESS = "wimax_mac_address";
     private static final String KEY_SIM_STATUS = "sim_status";
     private static final String KEY_IMEI_INFO = "imei_info";

     // Broadcasts to listen to for connectivity changes.
     private static final String[] CONNECTIVITY_INTENTS = {
             BluetoothAdapter.ACTION_STATE_CHANGED,
             ConnectivityManager.CONNECTIVITY_ACTION,
             WifiManager.LINK_CONFIGURATION_CHANGED_ACTION,
             WifiManager.NETWORK_STATE_CHANGED_ACTION,
     };

     private static final int EVENT_UPDATE_STATS = 500;

     private static final int EVENT_UPDATE_CONNECTIVITY = 600;

     private ConnectivityManager mCM;
     private WifiManager mWifiManager;

     private Resources mRes;

     private String mUnavailable;

     private SerialNumberPreferenceController mSerialNumberPreferenceController;

     private Preference mUptime;
     private Preference mBatteryStatus;
     private Preference mBatteryLevel;
     private Preference mBtAddress;
     private Preference mIpAddress;
     private Preference mWifiMacAddress;
     private Preference mWimaxMacAddress;
     private Handler mHandler;

     private static class MyHandler extends Handler {
         private WeakReference<Status> mStatus;

         public MyHandler(Status activity) {
             mStatus = new WeakReference<Status>(activity);
         }

         @Override
         public void handleMessage(Message msg) {
             Status status = mStatus.get();
             if (status == null) {
                 return;
             }

             switch (msg.what) {
                 case EVENT_UPDATE_STATS:
                     status.updateTimes();
                     sendEmptyMessageDelayed(EVENT_UPDATE_STATS, 1000);
                     break;

                 case EVENT_UPDATE_CONNECTIVITY:
                     status.updateConnectivity();
                     break;
             }
         }
     }

     private BroadcastReceiver mBatteryInfoReceiver = new BroadcastReceiver() {

         @Override
         public void onReceive(Context context, Intent intent) {
             String action = intent.getAction();
             if (Intent.ACTION_BATTERY_CHANGED.equals(action)) {
                 mBatteryLevel.setSummary(Utils.getBatteryPercentage(intent));
                 mBatteryStatus.setSummary(Utils.getBatteryStatus(getResources(), intent));
             }
         }
     };

     private IntentFilter mConnectivityIntentFilter;
     private final BroadcastReceiver mConnectivityReceiver = new BroadcastReceiver() {
         @Override
         public void onReceive(Context context, Intent intent) {
             String action = intent.getAction();
             if (ArrayUtils.contains(CONNECTIVITY_INTENTS, action)) {
                 mHandler.sendEmptyMessage(EVENT_UPDATE_CONNECTIVITY);
             }
         }
     };

     private boolean hasBluetooth() {
         return BluetoothAdapter.getDefaultAdapter() != null;
     }

     private boolean hasWimax() {
         return  mCM.getNetworkInfo(ConnectivityManager.TYPE_WIMAX) != null;
     }

     @Override
     public void onCreate(Bundle icicle) {
         super.onCreate(icicle);

         mHandler = new MyHandler(this);

         mCM = (ConnectivityManager) getSystemService(CONNECTIVITY_SERVICE);
         mWifiManager = (WifiManager) getSystemService(WIFI_SERVICE);
         mSerialNumberPreferenceController = new SerialNumberPreferenceController(getActivity());

         addPreferencesFromResource(R.xml.device_info_status);
         mBatteryLevel = findPreference(KEY_BATTERY_LEVEL);
         mBatteryStatus = findPreference(KEY_BATTERY_STATUS);
         mBtAddress = findPreference(KEY_BT_ADDRESS);
         mWifiMacAddress = findPreference(KEY_WIFI_MAC_ADDRESS);
         mWimaxMacAddress = findPreference(KEY_WIMAX_MAC_ADDRESS);
         mIpAddress = findPreference(KEY_IP_ADDRESS);

         mRes = getResources();
         mUnavailable = mRes.getString(R.string.status_unavailable);

         // Note - missing in zaku build, be careful later...
         mUptime = findPreference("up_time");
         final PreferenceScreen screen = getPreferenceScreen();
         if (!hasBluetooth()) {
             screen.removePreference(mBtAddress);
             mBtAddress = null;
         }

         if (!hasWimax()) {
             screen.removePreference(mWimaxMacAddress);
             mWimaxMacAddress = null;
         }

         mConnectivityIntentFilter = new IntentFilter();
         for (String intent: CONNECTIVITY_INTENTS) {
              mConnectivityIntentFilter.addAction(intent);
         }

         updateConnectivity();

         mSerialNumberPreferenceController.displayPreference(screen);

         // Remove SimStatus and Imei for Secondary user as it access Phone b/19165700
         // Also remove on Wi-Fi only devices.
         //TODO: the bug above will surface in split system user mode.
         if (!UserManager.get(getContext()).isAdminUser()
                 || Utils.isWifiOnly(getContext())) {
             removePreferenceFromScreen(KEY_SIM_STATUS);
             removePreferenceFromScreen(KEY_IMEI_INFO);
         }
     }

     @Override
     public int getMetricsCategory() {
         return MetricsEvent.DEVICEINFO_STATUS;
     }

     @Override
     public void onResume() {
         super.onResume();
         getContext().registerReceiver(mConnectivityReceiver, mConnectivityIntentFilter,
                          android.Manifest.permission.CHANGE_NETWORK_STATE, null);
         getContext().registerReceiver(mBatteryInfoReceiver,
                 new IntentFilter(Intent.ACTION_BATTERY_CHANGED));
         mHandler.sendEmptyMessage(EVENT_UPDATE_STATS);
     }

     @Override
     public void onPause() {
         super.onPause();

         getContext().unregisterReceiver(mBatteryInfoReceiver);
         getContext().unregisterReceiver(mConnectivityReceiver);
         mHandler.removeMessages(EVENT_UPDATE_STATS);
     }

     /**
      * Removes the specified preference, if it exists.
      * @param key the key for the Preference item
      */
     private void removePreferenceFromScreen(String key) {
         Preference pref = findPreference(key);
         if (pref != null) {
             getPreferenceScreen().removePreference(pref);
         }
     }

     private void setWimaxStatus() {
         if (mWimaxMacAddress != null) {
             String macAddress = SystemProperties.get("net.wimax.mac.address", mUnavailable);
             mWimaxMacAddress.setSummary(macAddress);
         }
     }

     private void setWifiStatus() {
         WifiInfo wifiInfo = mWifiManager.getConnectionInfo();
         boolean hasMacAddress = wifiInfo != null && wifiInfo.hasRealMacAddress();
         String macAddress = hasMacAddress ? wifiInfo.getMacAddress() : null;
         mWifiMacAddress.setSummary(!TextUtils.isEmpty(macAddress) ? macAddress : mUnavailable);
     }

     private void setIpAddressStatus() {
         String ipAddress = Utils.getDefaultIpAddresses(this.mCM);
         if (ipAddress != null) {
             mIpAddress.setSummary(ipAddress);
         } else {
             mIpAddress.setSummary(mUnavailable);
         }
     }

     private void setBtStatus() {
         BluetoothAdapter bluetooth = BluetoothAdapter.getDefaultAdapter();
         if (bluetooth != null && mBtAddress != null) {
             String address = bluetooth.isEnabled() ? bluetooth.getAddress() : null;
             if (!TextUtils.isEmpty(address)) {
                // Convert the address to lowercase for consistency with the wifi MAC address.
                 mBtAddress.setSummary(address.toLowerCase());
             } else {
                 mBtAddress.setSummary(mUnavailable);
             }
         }
     }

     void updateConnectivity() {
         setWimaxStatus();
         setWifiStatus();
         setBtStatus();
         setIpAddressStatus();
     }

     void updateTimes() {
         long at = SystemClock.uptimeMillis() / 1000;
         long ut = SystemClock.elapsedRealtime() / 1000;

         if (ut == 0) {
             ut = 1;
         }

         mUptime.setSummary(convert(ut));
     }

     private String pad(int n) {
         if (n >= 10) {
             return String.valueOf(n);
         } else {
             return "0" + String.valueOf(n);
         }
     }

     private String convert(long t) {
         int s = (int)(t % 60);
         int m = (int)((t / 60) % 60);
         int h = (int)((t / 3600));

         return h + ":" + pad(m) + ":" + pad(s);
     }
 }
	/*
	* Copyright (C) 2008 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.deviceinfo;

	import android.bluetooth.BluetoothAdapter;
	import android.content.BroadcastReceiver;
	import android.content.Context;
	import android.content.Intent;
	import android.content.IntentFilter;
	import android.content.res.Resources;
	import android.net.ConnectivityManager;
	import android.net.wifi.WifiInfo;
	import android.net.wifi.WifiManager;
	import android.os.Bundle;
	import android.os.Handler;
	import android.os.Message;
	import android.os.SystemClock;
	import android.os.SystemProperties;
	import android.os.UserManager;
	import android.support.v7.preference.Preference;
	import android.support.v7.preference.PreferenceScreen;
	import android.text.TextUtils;

	import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
	import com.android.internal.util.ArrayUtils;
	import com.android.settings.R;
	import com.android.settings.SettingsPreferenceFragment;
	import com.android.settings.Utils;

	import java.lang.ref.WeakReference;

	import static android.content.Context.CONNECTIVITY_SERVICE;
	import static android.content.Context.WIFI_SERVICE;

	public class Status extends SettingsPreferenceFragment {

	private static final String KEY_BATTERY_STATUS = "battery_status";
	private static final String KEY_BATTERY_LEVEL = "battery_level";
	private static final String KEY_IP_ADDRESS = "wifi_ip_address";
	private static final String KEY_WIFI_MAC_ADDRESS = "wifi_mac_address";
	private static final String KEY_BT_ADDRESS = "bt_address";
	private static final String KEY_WIMAX_MAC_ADDRESS = "wimax_mac_address";
	private static final String KEY_SIM_STATUS = "sim_status";
	private static final String KEY_IMEI_INFO = "imei_info";

	// Broadcasts to listen to for connectivity changes.
	private static final String[] CONNECTIVITY_INTENTS = {
	BluetoothAdapter.ACTION_STATE_CHANGED,
	ConnectivityManager.CONNECTIVITY_ACTION,
	WifiManager.LINK_CONFIGURATION_CHANGED_ACTION,
	WifiManager.NETWORK_STATE_CHANGED_ACTION,
	};

	private static final int EVENT_UPDATE_STATS = 500;

	private static final int EVENT_UPDATE_CONNECTIVITY = 600;

	private ConnectivityManager mCM;
	private WifiManager mWifiManager;

	private Resources mRes;

	private String mUnavailable;

	private SerialNumberPreferenceController mSerialNumberPreferenceController;

	private Preference mUptime;
	private Preference mBatteryStatus;
	private Preference mBatteryLevel;
	private Preference mBtAddress;
	private Preference mIpAddress;
	private Preference mWifiMacAddress;
	private Preference mWimaxMacAddress;
	private Handler mHandler;

	private static class MyHandler extends Handler {
	private WeakReference<Status> mStatus;

	public MyHandler(Status activity) {
	mStatus = new WeakReference<Status>(activity);
	}

	@Override
	public void handleMessage(Message msg) {
	Status status = mStatus.get();
	if (status == null) {
	return;
	}

	switch (msg.what) {
	case EVENT_UPDATE_STATS:
	status.updateTimes();
	sendEmptyMessageDelayed(EVENT_UPDATE_STATS, 1000);
	break;

	case EVENT_UPDATE_CONNECTIVITY:
	status.updateConnectivity();
	break;
	}
	}
	}

	private BroadcastReceiver mBatteryInfoReceiver = new BroadcastReceiver() {

	@Override
	public void onReceive(Context context, Intent intent) {
	String action = intent.getAction();
	if (Intent.ACTION_BATTERY_CHANGED.equals(action)) {
	mBatteryLevel.setSummary(Utils.getBatteryPercentage(intent));
	mBatteryStatus.setSummary(Utils.getBatteryStatus(getResources(), intent));
	}
	}
	};

	private IntentFilter mConnectivityIntentFilter;
	private final BroadcastReceiver mConnectivityReceiver = new BroadcastReceiver() {
	@Override
	public void onReceive(Context context, Intent intent) {
	String action = intent.getAction();
	if (ArrayUtils.contains(CONNECTIVITY_INTENTS, action)) {
	mHandler.sendEmptyMessage(EVENT_UPDATE_CONNECTIVITY);
	}
	}
	};

	private boolean hasBluetooth() {
	return BluetoothAdapter.getDefaultAdapter() != null;
	}

	private boolean hasWimax() {
	return mCM.getNetworkInfo(ConnectivityManager.TYPE_WIMAX) != null;
	}

	@Override
	public void onCreate(Bundle icicle) {
	super.onCreate(icicle);

	mHandler = new MyHandler(this);

	mCM = (ConnectivityManager) getSystemService(CONNECTIVITY_SERVICE);
	mWifiManager = (WifiManager) getSystemService(WIFI_SERVICE);
	mSerialNumberPreferenceController = new SerialNumberPreferenceController(getActivity());

	addPreferencesFromResource(R.xml.device_info_status);
	mBatteryLevel = findPreference(KEY_BATTERY_LEVEL);
	mBatteryStatus = findPreference(KEY_BATTERY_STATUS);
	mBtAddress = findPreference(KEY_BT_ADDRESS);
	mWifiMacAddress = findPreference(KEY_WIFI_MAC_ADDRESS);
	mWimaxMacAddress = findPreference(KEY_WIMAX_MAC_ADDRESS);
	mIpAddress = findPreference(KEY_IP_ADDRESS);

	mRes = getResources();
	mUnavailable = mRes.getString(R.string.status_unavailable);

	// Note - missing in zaku build, be careful later...
	mUptime = findPreference("up_time");
	final PreferenceScreen screen = getPreferenceScreen();
	if (!hasBluetooth()) {
	screen.removePreference(mBtAddress);
	mBtAddress = null;
	}

	if (!hasWimax()) {
	screen.removePreference(mWimaxMacAddress);
	mWimaxMacAddress = null;
	}

	mConnectivityIntentFilter = new IntentFilter();
	for (String intent: CONNECTIVITY_INTENTS) {
	mConnectivityIntentFilter.addAction(intent);
	}

	updateConnectivity();

	mSerialNumberPreferenceController.displayPreference(screen);

	// Remove SimStatus and Imei for Secondary user as it access Phone b/19165700
	// Also remove on Wi-Fi only devices.
	//TODO: the bug above will surface in split system user mode.
	if (!UserManager.get(getContext()).isAdminUser()
	\|\| Utils.isWifiOnly(getContext())) {
	removePreferenceFromScreen(KEY_SIM_STATUS);
	removePreferenceFromScreen(KEY_IMEI_INFO);
	}
	}

	@Override
	public int getMetricsCategory() {
	return MetricsEvent.DEVICEINFO_STATUS;
	}

	@Override
	public void onResume() {
	super.onResume();
	getContext().registerReceiver(mConnectivityReceiver, mConnectivityIntentFilter,
	android.Manifest.permission.CHANGE_NETWORK_STATE, null);
	getContext().registerReceiver(mBatteryInfoReceiver,
	new IntentFilter(Intent.ACTION_BATTERY_CHANGED));
	mHandler.sendEmptyMessage(EVENT_UPDATE_STATS);
	}

	@Override
	public void onPause() {
	super.onPause();

	getContext().unregisterReceiver(mBatteryInfoReceiver);
	getContext().unregisterReceiver(mConnectivityReceiver);
	mHandler.removeMessages(EVENT_UPDATE_STATS);
	}

	/**
	* Removes the specified preference, if it exists.
	* @param key the key for the Preference item
	*/
	private void removePreferenceFromScreen(String key) {
	Preference pref = findPreference(key);
	if (pref != null) {
	getPreferenceScreen().removePreference(pref);
	}
	}

	private void setWimaxStatus() {
	if (mWimaxMacAddress != null) {
	String macAddress = SystemProperties.get("net.wimax.mac.address", mUnavailable);
	mWimaxMacAddress.setSummary(macAddress);
	}
	}

	private void setWifiStatus() {
	WifiInfo wifiInfo = mWifiManager.getConnectionInfo();
	boolean hasMacAddress = wifiInfo != null && wifiInfo.hasRealMacAddress();
	String macAddress = hasMacAddress ? wifiInfo.getMacAddress() : null;
	mWifiMacAddress.setSummary(!TextUtils.isEmpty(macAddress) ? macAddress : mUnavailable);
	}

	private void setIpAddressStatus() {
	String ipAddress = Utils.getDefaultIpAddresses(this.mCM);
	if (ipAddress != null) {
	mIpAddress.setSummary(ipAddress);
	} else {
	mIpAddress.setSummary(mUnavailable);
	}
	}

	private void setBtStatus() {
	BluetoothAdapter bluetooth = BluetoothAdapter.getDefaultAdapter();
	if (bluetooth != null && mBtAddress != null) {
	String address = bluetooth.isEnabled() ? bluetooth.getAddress() : null;
	if (!TextUtils.isEmpty(address)) {
	// Convert the address to lowercase for consistency with the wifi MAC address.
	mBtAddress.setSummary(address.toLowerCase());
	} else {
	mBtAddress.setSummary(mUnavailable);
	}
	}
	}

	void updateConnectivity() {
	setWimaxStatus();
	setWifiStatus();
	setBtStatus();
	setIpAddressStatus();
	}

	void updateTimes() {
	long at = SystemClock.uptimeMillis() / 1000;
	long ut = SystemClock.elapsedRealtime() / 1000;

	if (ut == 0) {
	ut = 1;
	}

	mUptime.setSummary(convert(ut));
	}

	private String pad(int n) {
	if (n >= 10) {
	return String.valueOf(n);
	} else {
	return "0" + String.valueOf(n);
	}
	}

	private String convert(long t) {
	int s = (int)(t % 60);
	int m = (int)((t / 60) % 60);
	int h = (int)((t / 3600));

	return h + ":" + pad(m) + ":" + pad(s);
	}
	}