Back to project page azilink.
The source code is released under:
GNU General Public License
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/* AziLink: USB tethering for Android * Copyright (C) 2009 by James Perry// ww w . j av a 2s.c om * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 2 of the License, or * (at your option) version 3 of the License. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ package org.lfx.azilink; import java.text.DecimalFormat; import android.content.ComponentName; import android.content.Context; import android.content.Intent; import android.content.ServiceConnection; import android.content.SharedPreferences; import android.os.Bundle; import android.os.Handler; import android.os.IBinder; import android.os.RemoteException; import android.preference.CheckBoxPreference; import android.preference.EditTextPreference; import android.preference.Preference; import android.preference.PreferenceActivity; import android.preference.PreferenceManager; import android.preference.Preference.OnPreferenceChangeListener; import android.preference.Preference.OnPreferenceClickListener; import android.util.Log; /** * Implements the main UI. PreferenceActive handles most of the actual work. * @author Jim Perry * */ public class MainActivity extends PreferenceActivity { /** Is the service active? */ private CheckBoxPreference mActive; /** Status of the service, for example "Waiting for connection". */ private Preference mStatus; /** # bytes received since counter reset */ private Preference mBytesRecv; /** # bytes sent since counter reset */ private Preference mBytesSent; /** # bytes total since counter reset */ private Preference mBytesTotal; /** # of TCP connections in the NAT table */ private Preference mTcpConnections; /** # of entries in the NAT table */ private Preference mNatSize; /** Timeout for the T-Mobile workaround (ms). */ private EditTextPreference mTM; /** Formatting for all the byte counters */ private DecimalFormat mFormat = new DecimalFormat("###,###,###,###,###"); /** Debug logging active? */ private static boolean sLog = false; /** Interface to the NAT process */ IAziLinkInformation mService = null; /** How often should we update the link statistics? */ private static final int sUpdatePeriod = 5000; /** * Setup the basic UI. */ @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); if(sLog) Log.v("AziLink","app::oncreate"); addPreferencesFromResource(R.xml.preferences); // Get convenience pointers to all the important preferences. mActive = (CheckBoxPreference) findPreference(getString(R.string.pref_key_active)); mStatus = findPreference(getString(R.string.pref_key_status)); mBytesRecv = findPreference(getString(R.string.pref_key_bytesrecv)); mBytesSent = findPreference(getString(R.string.pref_key_bytessent)); mBytesTotal = findPreference(getString(R.string.pref_key_bytestotal)); mTcpConnections = findPreference(getString(R.string.pref_key_tcpconn)); mNatSize = findPreference(getString(R.string.pref_key_natsize)); mTM = (EditTextPreference) findPreference(getString(R.string.pref_key_tmobile_ms)); // Activate/deactivate service mActive.setOnPreferenceChangeListener(mActiveListen); // Reset the statistics Preference resetStats = findPreference(getString(R.string.pref_key_reset)); resetStats.setOnPreferenceClickListener(mResetHandler); // About dialog Preference about = findPreference(getString(R.string.pref_key_about)); about.setOnPreferenceClickListener(mAboutHandler); // T-Mobile workarounds findPreference(getString(R.string.pref_key_tmobile)).setOnPreferenceChangeListener(mChangeTM); mTM.setOnPreferenceChangeListener(mChangeTMtimeout); mTM.setSummary(mTM.getText()); findPreference(getString(R.string.pref_key_ping)).setOnPreferenceChangeListener(mChangePinger); } /** * Bind to the NAT service and begin periodically updating transfer statistics. */ @Override protected void onStart() { if(sLog) Log.v("AziLink","app::onstart"); super.onStart(); // Set active checkbox to false; it'll be updated later mActive.setChecked(false); bindService( new Intent(this, ForwardService.class), mConnection, 0 ); mUpdateCallback.run(); } /** * Disconnect from the NAT service and stop updating transfer statistics. */ @Override protected void onStop() { if(sLog) Log.v("AziLink","app::onstop"); mHandler.removeCallbacks(mUpdateCallback); unbindService(mConnection); super.onStop(); } /** * Connection to the NAT service. */ ServiceConnection mConnection = new ServiceConnection() { /** * Service connected, so start periodically updating transfer statistics. */ public void onServiceConnected(ComponentName arg0, IBinder arg1) { if(sLog) Log.v("AziLink","app::serviceConnect"); mService = IAziLinkInformation.Stub.asInterface(arg1); mActive.setChecked(true); mUpdateCallback.run(); } /** * Server disconnected, so stop periodically updating transfer statistics. */ public void onServiceDisconnected(ComponentName arg0) { if(sLog) Log.v("AziLink","app::servicedc"); mService = null; mActive.setChecked(false); mUpdateCallback.run(); } }; /** * Start/kill the NAT service depending upon whether the user just checked the active box. */ OnPreferenceChangeListener mActiveListen = new Preference.OnPreferenceChangeListener() { public boolean onPreferenceChange(Preference preference, Object newValue) { Boolean active = (Boolean) newValue; if( !active ) { if(sLog) Log.v("AziLink","app::active going off (stop)"); unbindService(mConnection); stopService(new Intent(MainActivity.this, ForwardService.class)); mConnection.onServiceDisconnected(null); bindService( new Intent(MainActivity.this, ForwardService.class), mConnection, 0 ); } else { if(sLog) Log.v("AziLink","app::active going on"); startService(new Intent(MainActivity.this, ForwardService.class)); } return true; } }; /** * Reset the byte counters when the user hits the reset button. */ OnPreferenceClickListener mResetHandler = new OnPreferenceClickListener() { public boolean onPreferenceClick(Preference preference) { if(mService != null) { try { mService.resetCounters(); } catch (RemoteException e) {} } else { SharedPreferences pref = PreferenceManager.getDefaultSharedPreferences(MainActivity.this); SharedPreferences.Editor ed = pref.edit(); ed.putLong(getString(R.string.pref_key_saved_bytessent), 0); ed.putLong(getString(R.string.pref_key_saved_bytesrecv), 0); ed.commit(); } mUpdateCallback.run(); return true; } }; /** * Display an about dialog when the about button is pressed. */ OnPreferenceClickListener mAboutHandler = new OnPreferenceClickListener() { public boolean onPreferenceClick(Preference preference) { startActivity( new Intent(MainActivity.this, AboutActivity.class) ); return true; } }; /** * Used to periodically update the transfer statistics. */ private final Handler mHandler = new Handler(); /** * Update the transfer statistics. */ private final Runnable mUpdateCallback = new Runnable() { public void run() { // Update all the link statistics! LinkStatistics ls; if(mService != null) { try { ls = mService.getStatistics(); } catch (RemoteException e) { ls = new LinkStatistics(); } } else { ls = new LinkStatistics(); // This is not called regularly, so it's okay to be a little slow SharedPreferences pref = PreferenceManager.getDefaultSharedPreferences(MainActivity.this); ls.mBytesSent = pref.getLong(getString(R.string.pref_key_saved_bytessent), 0); ls.mBytesRecv = pref.getLong(getString(R.string.pref_key_saved_bytesrecv), 0); } if( ls.mStatus.length() == 0 ) { mStatus.setSummary(getString(R.string.status_unknown)); } else { mStatus.setSummary(ls.mStatus); } mBytesRecv.setSummary(mFormat.format(ls.mBytesRecv)); mBytesSent.setSummary(mFormat.format(ls.mBytesSent)); mBytesTotal.setSummary(mFormat.format(ls.mBytesRecv + ls.mBytesSent)); mTcpConnections.setSummary(mFormat.format(ls.mTcpConnections)); mNatSize.setSummary(mFormat.format(ls.mTcpConnections + ls.mUdpConnections)); if(mService != null) { mHandler.removeCallbacks(this); mHandler.postDelayed(this, sUpdatePeriod); if(sLog) Log.v("AziLink","service is not null; callback"); } else { if(sLog) Log.v("AziLink","service is null; no callback"); } } }; /** * When the T-Mobile workaround option is changed, immediately notify the NAT service. */ private OnPreferenceChangeListener mChangeTM = new OnPreferenceChangeListener() { public boolean onPreferenceChange(Preference preference, Object newValue) { if(mService != null) { try { mService.setTMworkaround((Boolean) newValue); } catch (RemoteException e) {} } return true; } }; /** * When the NAT ping option is changed, immediately notify the NAT service. */ private OnPreferenceChangeListener mChangePinger = new OnPreferenceChangeListener() { public boolean onPreferenceChange(Preference preference, Object newValue) { if(mService != null) { try { mService.setPinger((Boolean) newValue); } catch (RemoteException e) {} } return true; } }; /** * When the T-Mobile workaround option is changed, immediately notify the NAT service. */ private OnPreferenceChangeListener mChangeTMtimeout = new OnPreferenceChangeListener() { public boolean onPreferenceChange(Preference preference, Object newValue) { if(mService != null) { try { mService.setTMworkaroundTimeout(Integer.parseInt((String) newValue)); } catch (RemoteException e) {} } mTM.setSummary((String)newValue); return true; } }; }