src/com/android/settings/bluetooth/BluetoothPairingDialog.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.bluetooth;

 import android.bluetooth.BluetoothClass;
 import android.bluetooth.BluetoothDevice;
 import android.content.BroadcastReceiver;
 import android.content.Context;
 import android.content.DialogInterface;
 import android.content.Intent;
 import android.content.IntentFilter;
 import android.os.Bundle;
 import android.text.Editable;
 import android.text.Html;
 import android.text.InputFilter;
 import android.text.InputType;
 import android.text.TextWatcher;
 import android.text.InputFilter.LengthFilter;
 import android.util.Log;
 import android.view.View;
 import android.widget.Button;
 import android.widget.CheckBox;
 import android.widget.CompoundButton;
 import android.widget.EditText;
 import android.widget.TextView;

 import com.android.internal.app.AlertActivity;
 import com.android.internal.app.AlertController;
 import com.android.settings.R;
 import com.android.settingslib.bluetooth.CachedBluetoothDeviceManager;
 import com.android.settingslib.bluetooth.LocalBluetoothManager;

 import android.view.KeyEvent;

 import java.util.Locale;

 /**
  * BluetoothPairingDialog asks the user to enter a PIN / Passkey / simple confirmation
  * for pairing with a remote Bluetooth device. It is an activity that appears as a dialog.
  */
 public final class BluetoothPairingDialog extends AlertActivity implements
         CompoundButton.OnCheckedChangeListener, DialogInterface.OnClickListener, TextWatcher {
     private static final String TAG = "BluetoothPairingDialog";

     private static final int BLUETOOTH_PIN_MAX_LENGTH = 16;
     private static final int BLUETOOTH_PASSKEY_MAX_LENGTH = 6;

     private LocalBluetoothManager mBluetoothManager;
     private CachedBluetoothDeviceManager mCachedDeviceManager;
     private BluetoothDevice mDevice;
     private int mType;
     private String mPairingKey;
     private EditText mPairingView;
     private Button mOkButton;

     /**
      * Dismiss the dialog if the bond state changes to bonded or none,
      * or if pairing was canceled for {@link #mDevice}.
      */
     private final BroadcastReceiver mReceiver = new BroadcastReceiver() {
         @Override
         public void onReceive(Context context, Intent intent) {
             String action = intent.getAction();
             if (BluetoothDevice.ACTION_BOND_STATE_CHANGED.equals(action)) {
                 int bondState = intent.getIntExtra(BluetoothDevice.EXTRA_BOND_STATE,
                                                    BluetoothDevice.ERROR);
                 if (bondState == BluetoothDevice.BOND_BONDED ||
                         bondState == BluetoothDevice.BOND_NONE) {
                     dismiss();
                 }
             } else if (BluetoothDevice.ACTION_PAIRING_CANCEL.equals(action)) {
                 BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
                 if (device == null || device.equals(mDevice)) {
                     dismiss();
                 }
             }
         }
     };

     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);

         Intent intent = getIntent();
         if (!intent.getAction().equals(BluetoothDevice.ACTION_PAIRING_REQUEST))
         {
             Log.e(TAG, "Error: this activity may be started only with intent " +
                   BluetoothDevice.ACTION_PAIRING_REQUEST);
             finish();
             return;
         }

         mBluetoothManager = Utils.getLocalBtManager(this);
         if (mBluetoothManager == null) {
             Log.e(TAG, "Error: BluetoothAdapter not supported by system");
             finish();
             return;
         }
         mCachedDeviceManager = mBluetoothManager.getCachedDeviceManager();

         mDevice = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
         mType = intent.getIntExtra(BluetoothDevice.EXTRA_PAIRING_VARIANT, BluetoothDevice.ERROR);

         switch (mType) {
             case BluetoothDevice.PAIRING_VARIANT_PIN:
             case BluetoothDevice.PAIRING_VARIANT_PIN_16_DIGITS:
             case BluetoothDevice.PAIRING_VARIANT_PASSKEY:
                 createUserEntryDialog();
                 break;

             case BluetoothDevice.PAIRING_VARIANT_PASSKEY_CONFIRMATION:
                 int passkey =
                     intent.getIntExtra(BluetoothDevice.EXTRA_PAIRING_KEY, BluetoothDevice.ERROR);
                 if (passkey == BluetoothDevice.ERROR) {
                     Log.e(TAG, "Invalid Confirmation Passkey received, not showing any dialog");
                     return;
                 }
                 mPairingKey = String.format(Locale.US, "%06d", passkey);
                 createConfirmationDialog();
                 break;

             case BluetoothDevice.PAIRING_VARIANT_CONSENT:
             case BluetoothDevice.PAIRING_VARIANT_OOB_CONSENT:
                 createConsentDialog();
                 break;

             case BluetoothDevice.PAIRING_VARIANT_DISPLAY_PASSKEY:
             case BluetoothDevice.PAIRING_VARIANT_DISPLAY_PIN:
                 int pairingKey =
                     intent.getIntExtra(BluetoothDevice.EXTRA_PAIRING_KEY, BluetoothDevice.ERROR);
                 if (pairingKey == BluetoothDevice.ERROR) {
                     Log.e(TAG, "Invalid Confirmation Passkey or PIN received, not showing any dialog");
                     return;
                 }
                 if (mType == BluetoothDevice.PAIRING_VARIANT_DISPLAY_PASSKEY) {
                     mPairingKey = String.format("%06d", pairingKey);
                 } else {
                     mPairingKey = String.format("%04d", pairingKey);
                 }
                 createDisplayPasskeyOrPinDialog();
                 break;

             default:
                 Log.e(TAG, "Incorrect pairing type received, not showing any dialog");
         }

         /*
          * Leave this registered through pause/resume since we still want to
          * finish the activity in the background if pairing is canceled.
          */
         registerReceiver(mReceiver, new IntentFilter(BluetoothDevice.ACTION_PAIRING_CANCEL));
         registerReceiver(mReceiver, new IntentFilter(BluetoothDevice.ACTION_BOND_STATE_CHANGED));
     }

     private void createUserEntryDialog() {
         final AlertController.AlertParams p = mAlertParams;
         p.mTitle = getString(R.string.bluetooth_pairing_request,
                 mCachedDeviceManager.getName(mDevice));
         p.mView = createPinEntryView();
         p.mPositiveButtonText = getString(android.R.string.ok);
         p.mPositiveButtonListener = this;
         p.mNegativeButtonText = getString(android.R.string.cancel);
         p.mNegativeButtonListener = this;
         setupAlert();

         mOkButton = mAlert.getButton(BUTTON_POSITIVE);
         mOkButton.setEnabled(false);
     }

     private View createPinEntryView() {
         View view = getLayoutInflater().inflate(R.layout.bluetooth_pin_entry, null);
         TextView messageViewCaptionHint = (TextView) view.findViewById(R.id.pin_values_hint);
         TextView messageView2 = (TextView) view.findViewById(R.id.message_below_pin);
         CheckBox alphanumericPin = (CheckBox) view.findViewById(R.id.alphanumeric_pin);
         CheckBox contactSharing = (CheckBox) view.findViewById(
                 R.id.phonebook_sharing_message_entry_pin);
         contactSharing.setText(getString(R.string.bluetooth_pairing_shares_phonebook,
                 mCachedDeviceManager.getName(mDevice)));
         if (mDevice.getPhonebookAccessPermission() == BluetoothDevice.ACCESS_ALLOWED) {
             contactSharing.setChecked(true);
         } else if (mDevice.getPhonebookAccessPermission() == BluetoothDevice.ACCESS_REJECTED){
             contactSharing.setChecked(false);
         } else {
             contactSharing.setChecked(true);
             mDevice.setPhonebookAccessPermission(BluetoothDevice.ACCESS_ALLOWED);
         }

         contactSharing.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
             @Override
             public void onCheckedChanged(CompoundButton compoundButton, boolean isChecked) {
                 if (isChecked) {
                     mDevice.setPhonebookAccessPermission(BluetoothDevice.ACCESS_ALLOWED);
                 } else {
                     mDevice.setPhonebookAccessPermission(BluetoothDevice.ACCESS_REJECTED);
                 }
             }
         });
         if (mDevice.getBluetoothClass().getDeviceClass()
                 == BluetoothClass.Device.AUDIO_VIDEO_HANDSFREE) {
             contactSharing.setVisibility(View.VISIBLE);
         } else {
             contactSharing.setVisibility(View.GONE);
         }
         mPairingView = (EditText) view.findViewById(R.id.text);
         mPairingView.addTextChangedListener(this);
         alphanumericPin.setOnCheckedChangeListener(this);

         int messageId;
         int messageIdHint = R.string.bluetooth_pin_values_hint;
         int maxLength;
         switch (mType) {
             case BluetoothDevice.PAIRING_VARIANT_PIN_16_DIGITS:
                 messageIdHint = R.string.bluetooth_pin_values_hint_16_digits;
                 // FALLTHROUGH
             case BluetoothDevice.PAIRING_VARIANT_PIN:
                 messageId = R.string.bluetooth_enter_pin_other_device;
                 // Maximum of 16 characters in a PIN
                 maxLength = BLUETOOTH_PIN_MAX_LENGTH;
                 break;

             case BluetoothDevice.PAIRING_VARIANT_PASSKEY:
                 messageId = R.string.bluetooth_enter_passkey_other_device;
                 // Maximum of 6 digits for passkey
                 maxLength = BLUETOOTH_PASSKEY_MAX_LENGTH;
                 alphanumericPin.setVisibility(View.GONE);
                 break;

             default:
                 Log.e(TAG, "Incorrect pairing type for createPinEntryView: " + mType);
                 return null;
         }

         messageViewCaptionHint.setText(messageIdHint);
         messageView2.setText(messageId);
         mPairingView.setInputType(InputType.TYPE_CLASS_NUMBER);
         mPairingView.setFilters(new InputFilter[] {
                 new LengthFilter(maxLength) });

         return view;
     }

     private View createView() {
         View view = getLayoutInflater().inflate(R.layout.bluetooth_pin_confirm, null);
         TextView pairingViewCaption = (TextView) view.findViewById(R.id.pairing_caption);
         TextView pairingViewContent = (TextView) view.findViewById(R.id.pairing_subhead);
         TextView messagePairing = (TextView) view.findViewById(R.id.pairing_code_message);
         CheckBox contactSharing = (CheckBox) view.findViewById(
                 R.id.phonebook_sharing_message_confirm_pin);
         contactSharing.setText(getString(R.string.bluetooth_pairing_shares_phonebook,
                 mCachedDeviceManager.getName(mDevice)));
         if (mDevice.getPhonebookAccessPermission() == BluetoothDevice.ACCESS_ALLOWED) {
             contactSharing.setChecked(true);
         } else if (mDevice.getPhonebookAccessPermission() == BluetoothDevice.ACCESS_REJECTED){
             contactSharing.setChecked(false);
         } else {
             contactSharing.setChecked(true);
             mDevice.setPhonebookAccessPermission(BluetoothDevice.ACCESS_ALLOWED);
         }

         contactSharing.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
             @Override
             public void onCheckedChanged(CompoundButton compoundButton, boolean isChecked) {
                 if (isChecked) {
                     mDevice.setPhonebookAccessPermission(BluetoothDevice.ACCESS_ALLOWED);
                 } else {
                     mDevice.setPhonebookAccessPermission(BluetoothDevice.ACCESS_REJECTED);
                 }
             }
         });
         if (mDevice.getBluetoothClass().getDeviceClass()
                 == BluetoothClass.Device.AUDIO_VIDEO_HANDSFREE) {
             contactSharing.setVisibility(View.VISIBLE);
         } else {
             contactSharing.setVisibility(View.GONE);
         }

         String messageCaption = null;
         String pairingContent = null;
         switch (mType) {
             case BluetoothDevice.PAIRING_VARIANT_DISPLAY_PASSKEY:
             case BluetoothDevice.PAIRING_VARIANT_DISPLAY_PIN:
                 messagePairing.setVisibility(View.VISIBLE);
             case BluetoothDevice.PAIRING_VARIANT_PASSKEY_CONFIRMATION:
                 pairingContent = mPairingKey;
                 break;

             case BluetoothDevice.PAIRING_VARIANT_CONSENT:
             case BluetoothDevice.PAIRING_VARIANT_OOB_CONSENT:
                 messagePairing.setVisibility(View.VISIBLE);
                 break;

             default:
                 Log.e(TAG, "Incorrect pairing type received, not creating view");
                 return null;
         }

         if (pairingContent != null) {
             pairingViewCaption.setVisibility(View.VISIBLE);
             pairingViewContent.setVisibility(View.VISIBLE);
             pairingViewContent.setText(pairingContent);
         }

         return view;
     }

     private void createConfirmationDialog() {
         final AlertController.AlertParams p = mAlertParams;
         p.mTitle = getString(R.string.bluetooth_pairing_request,
                 mCachedDeviceManager.getName(mDevice));
         p.mView = createView();
         p.mPositiveButtonText = getString(R.string.bluetooth_pairing_accept);
         p.mPositiveButtonListener = this;
         p.mNegativeButtonText = getString(R.string.bluetooth_pairing_decline);
         p.mNegativeButtonListener = this;
         setupAlert();
     }

     private void createConsentDialog() {
         final AlertController.AlertParams p = mAlertParams;
         p.mTitle = getString(R.string.bluetooth_pairing_request,
                 mCachedDeviceManager.getName(mDevice));
         p.mView = createView();
         p.mPositiveButtonText = getString(R.string.bluetooth_pairing_accept);
         p.mPositiveButtonListener = this;
         p.mNegativeButtonText = getString(R.string.bluetooth_pairing_decline);
         p.mNegativeButtonListener = this;
         setupAlert();
     }

     private void createDisplayPasskeyOrPinDialog() {
         final AlertController.AlertParams p = mAlertParams;
         p.mTitle = getString(R.string.bluetooth_pairing_request,
                 mCachedDeviceManager.getName(mDevice));
         p.mView = createView();
         p.mNegativeButtonText = getString(android.R.string.cancel);
         p.mNegativeButtonListener = this;
         setupAlert();

         // Since its only a notification, send an OK to the framework,
         // indicating that the dialog has been displayed.
         if (mType == BluetoothDevice.PAIRING_VARIANT_DISPLAY_PASSKEY) {
             mDevice.setPairingConfirmation(true);
         } else if (mType == BluetoothDevice.PAIRING_VARIANT_DISPLAY_PIN) {
             byte[] pinBytes = BluetoothDevice.convertPinToBytes(mPairingKey);
             mDevice.setPin(pinBytes);
         }
     }

     @Override
     protected void onDestroy() {
         super.onDestroy();
         unregisterReceiver(mReceiver);
     }

     public void afterTextChanged(Editable s) {
         if (mOkButton != null) {
             if (mType == BluetoothDevice.PAIRING_VARIANT_PIN_16_DIGITS) {
                 mOkButton.setEnabled(s.length() >= 16);
             } else {
                 mOkButton.setEnabled(s.length() > 0);
             }
         }
     }

     private void onPair(String value) {
         switch (mType) {
             case BluetoothDevice.PAIRING_VARIANT_PIN:
             case BluetoothDevice.PAIRING_VARIANT_PIN_16_DIGITS:
                 byte[] pinBytes = BluetoothDevice.convertPinToBytes(value);
                 if (pinBytes == null) {
                     return;
                 }
                 mDevice.setPin(pinBytes);
                 break;

             case BluetoothDevice.PAIRING_VARIANT_PASSKEY:
                 int passkey = Integer.parseInt(value);
                 mDevice.setPasskey(passkey);
                 break;

             case BluetoothDevice.PAIRING_VARIANT_PASSKEY_CONFIRMATION:
             case BluetoothDevice.PAIRING_VARIANT_CONSENT:
                 mDevice.setPairingConfirmation(true);
                 break;

             case BluetoothDevice.PAIRING_VARIANT_DISPLAY_PASSKEY:
             case BluetoothDevice.PAIRING_VARIANT_DISPLAY_PIN:
                 // Do nothing.
                 break;

             case BluetoothDevice.PAIRING_VARIANT_OOB_CONSENT:
                 mDevice.setRemoteOutOfBandData();
                 break;

             default:
                 Log.e(TAG, "Incorrect pairing type received");
         }
     }

     private void onCancel() {
         mDevice.cancelPairingUserInput();
     }

     public boolean onKeyDown(int keyCode, KeyEvent event) {
         if (keyCode == KeyEvent.KEYCODE_BACK) {
             onCancel();
         }
         return super.onKeyDown(keyCode,event);
     }

     public void onClick(DialogInterface dialog, int which) {
         switch (which) {
             case BUTTON_POSITIVE:
                 if (mPairingView != null) {
                     onPair(mPairingView.getText().toString());
                 } else {
                     onPair(null);
                 }
                 break;

             case BUTTON_NEGATIVE:
             default:
                 onCancel();
                 break;
         }
     }

     /* Not used */
     public void beforeTextChanged(CharSequence s, int start, int count, int after) {
     }

     /* Not used */
     public void onTextChanged(CharSequence s, int start, int before, int count) {
     }

     public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
         // change input type for soft keyboard to numeric or alphanumeric
         if (isChecked) {
             mPairingView.setInputType(InputType.TYPE_CLASS_TEXT);
         } else {
             mPairingView.setInputType(InputType.TYPE_CLASS_NUMBER);
         }
     }
 }
	/*
	* 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.bluetooth;

	import android.bluetooth.BluetoothClass;
	import android.bluetooth.BluetoothDevice;
	import android.content.BroadcastReceiver;
	import android.content.Context;
	import android.content.DialogInterface;
	import android.content.Intent;
	import android.content.IntentFilter;
	import android.os.Bundle;
	import android.text.Editable;
	import android.text.Html;
	import android.text.InputFilter;
	import android.text.InputType;
	import android.text.TextWatcher;
	import android.text.InputFilter.LengthFilter;
	import android.util.Log;
	import android.view.View;
	import android.widget.Button;
	import android.widget.CheckBox;
	import android.widget.CompoundButton;
	import android.widget.EditText;
	import android.widget.TextView;

	import com.android.internal.app.AlertActivity;
	import com.android.internal.app.AlertController;
	import com.android.settings.R;
	import com.android.settingslib.bluetooth.CachedBluetoothDeviceManager;
	import com.android.settingslib.bluetooth.LocalBluetoothManager;

	import android.view.KeyEvent;

	import java.util.Locale;

	/**
	* BluetoothPairingDialog asks the user to enter a PIN / Passkey / simple confirmation
	* for pairing with a remote Bluetooth device. It is an activity that appears as a dialog.
	*/
	public final class BluetoothPairingDialog extends AlertActivity implements
	CompoundButton.OnCheckedChangeListener, DialogInterface.OnClickListener, TextWatcher {
	private static final String TAG = "BluetoothPairingDialog";

	private static final int BLUETOOTH_PIN_MAX_LENGTH = 16;
	private static final int BLUETOOTH_PASSKEY_MAX_LENGTH = 6;

	private LocalBluetoothManager mBluetoothManager;
	private CachedBluetoothDeviceManager mCachedDeviceManager;
	private BluetoothDevice mDevice;
	private int mType;
	private String mPairingKey;
	private EditText mPairingView;
	private Button mOkButton;

	/**
	* Dismiss the dialog if the bond state changes to bonded or none,
	* or if pairing was canceled for {@link #mDevice}.
	*/
	private final BroadcastReceiver mReceiver = new BroadcastReceiver() {
	@Override
	public void onReceive(Context context, Intent intent) {
	String action = intent.getAction();
	if (BluetoothDevice.ACTION_BOND_STATE_CHANGED.equals(action)) {
	int bondState = intent.getIntExtra(BluetoothDevice.EXTRA_BOND_STATE,
	BluetoothDevice.ERROR);
	if (bondState == BluetoothDevice.BOND_BONDED \|\|
	bondState == BluetoothDevice.BOND_NONE) {
	dismiss();
	}
	} else if (BluetoothDevice.ACTION_PAIRING_CANCEL.equals(action)) {
	BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
	if (device == null \|\| device.equals(mDevice)) {
	dismiss();
	}
	}
	}
	};

	@Override
	protected void onCreate(Bundle savedInstanceState) {
	super.onCreate(savedInstanceState);

	Intent intent = getIntent();
	if (!intent.getAction().equals(BluetoothDevice.ACTION_PAIRING_REQUEST))
	{
	Log.e(TAG, "Error: this activity may be started only with intent " +
	BluetoothDevice.ACTION_PAIRING_REQUEST);
	finish();
	return;
	}

	mBluetoothManager = Utils.getLocalBtManager(this);
	if (mBluetoothManager == null) {
	Log.e(TAG, "Error: BluetoothAdapter not supported by system");
	finish();
	return;
	}
	mCachedDeviceManager = mBluetoothManager.getCachedDeviceManager();

	mDevice = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
	mType = intent.getIntExtra(BluetoothDevice.EXTRA_PAIRING_VARIANT, BluetoothDevice.ERROR);

	switch (mType) {
	case BluetoothDevice.PAIRING_VARIANT_PIN:
	case BluetoothDevice.PAIRING_VARIANT_PIN_16_DIGITS:
	case BluetoothDevice.PAIRING_VARIANT_PASSKEY:
	createUserEntryDialog();
	break;

	case BluetoothDevice.PAIRING_VARIANT_PASSKEY_CONFIRMATION:
	int passkey =
	intent.getIntExtra(BluetoothDevice.EXTRA_PAIRING_KEY, BluetoothDevice.ERROR);
	if (passkey == BluetoothDevice.ERROR) {
	Log.e(TAG, "Invalid Confirmation Passkey received, not showing any dialog");
	return;
	}
	mPairingKey = String.format(Locale.US, "%06d", passkey);
	createConfirmationDialog();
	break;

	case BluetoothDevice.PAIRING_VARIANT_CONSENT:
	case BluetoothDevice.PAIRING_VARIANT_OOB_CONSENT:
	createConsentDialog();
	break;

	case BluetoothDevice.PAIRING_VARIANT_DISPLAY_PASSKEY:
	case BluetoothDevice.PAIRING_VARIANT_DISPLAY_PIN:
	int pairingKey =
	intent.getIntExtra(BluetoothDevice.EXTRA_PAIRING_KEY, BluetoothDevice.ERROR);
	if (pairingKey == BluetoothDevice.ERROR) {
	Log.e(TAG, "Invalid Confirmation Passkey or PIN received, not showing any dialog");
	return;
	}
	if (mType == BluetoothDevice.PAIRING_VARIANT_DISPLAY_PASSKEY) {
	mPairingKey = String.format("%06d", pairingKey);
	} else {
	mPairingKey = String.format("%04d", pairingKey);
	}
	createDisplayPasskeyOrPinDialog();
	break;

	default:
	Log.e(TAG, "Incorrect pairing type received, not showing any dialog");
	}

	/*
	* Leave this registered through pause/resume since we still want to
	* finish the activity in the background if pairing is canceled.
	*/
	registerReceiver(mReceiver, new IntentFilter(BluetoothDevice.ACTION_PAIRING_CANCEL));
	registerReceiver(mReceiver, new IntentFilter(BluetoothDevice.ACTION_BOND_STATE_CHANGED));
	}

	private void createUserEntryDialog() {
	final AlertController.AlertParams p = mAlertParams;
	p.mTitle = getString(R.string.bluetooth_pairing_request,
	mCachedDeviceManager.getName(mDevice));
	p.mView = createPinEntryView();
	p.mPositiveButtonText = getString(android.R.string.ok);
	p.mPositiveButtonListener = this;
	p.mNegativeButtonText = getString(android.R.string.cancel);
	p.mNegativeButtonListener = this;
	setupAlert();

	mOkButton = mAlert.getButton(BUTTON_POSITIVE);
	mOkButton.setEnabled(false);
	}

	private View createPinEntryView() {
	View view = getLayoutInflater().inflate(R.layout.bluetooth_pin_entry, null);
	TextView messageViewCaptionHint = (TextView) view.findViewById(R.id.pin_values_hint);
	TextView messageView2 = (TextView) view.findViewById(R.id.message_below_pin);
	CheckBox alphanumericPin = (CheckBox) view.findViewById(R.id.alphanumeric_pin);
	CheckBox contactSharing = (CheckBox) view.findViewById(
	R.id.phonebook_sharing_message_entry_pin);
	contactSharing.setText(getString(R.string.bluetooth_pairing_shares_phonebook,
	mCachedDeviceManager.getName(mDevice)));
	if (mDevice.getPhonebookAccessPermission() == BluetoothDevice.ACCESS_ALLOWED) {
	contactSharing.setChecked(true);
	} else if (mDevice.getPhonebookAccessPermission() == BluetoothDevice.ACCESS_REJECTED){
	contactSharing.setChecked(false);
	} else {
	contactSharing.setChecked(true);
	mDevice.setPhonebookAccessPermission(BluetoothDevice.ACCESS_ALLOWED);
	}

	contactSharing.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
	@Override
	public void onCheckedChanged(CompoundButton compoundButton, boolean isChecked) {
	if (isChecked) {
	mDevice.setPhonebookAccessPermission(BluetoothDevice.ACCESS_ALLOWED);
	} else {
	mDevice.setPhonebookAccessPermission(BluetoothDevice.ACCESS_REJECTED);
	}
	}
	});
	if (mDevice.getBluetoothClass().getDeviceClass()
	== BluetoothClass.Device.AUDIO_VIDEO_HANDSFREE) {
	contactSharing.setVisibility(View.VISIBLE);
	} else {
	contactSharing.setVisibility(View.GONE);
	}
	mPairingView = (EditText) view.findViewById(R.id.text);
	mPairingView.addTextChangedListener(this);
	alphanumericPin.setOnCheckedChangeListener(this);

	int messageId;
	int messageIdHint = R.string.bluetooth_pin_values_hint;
	int maxLength;
	switch (mType) {
	case BluetoothDevice.PAIRING_VARIANT_PIN_16_DIGITS:
	messageIdHint = R.string.bluetooth_pin_values_hint_16_digits;
	// FALLTHROUGH
	case BluetoothDevice.PAIRING_VARIANT_PIN:
	messageId = R.string.bluetooth_enter_pin_other_device;
	// Maximum of 16 characters in a PIN
	maxLength = BLUETOOTH_PIN_MAX_LENGTH;
	break;

	case BluetoothDevice.PAIRING_VARIANT_PASSKEY:
	messageId = R.string.bluetooth_enter_passkey_other_device;
	// Maximum of 6 digits for passkey
	maxLength = BLUETOOTH_PASSKEY_MAX_LENGTH;
	alphanumericPin.setVisibility(View.GONE);
	break;

	default:
	Log.e(TAG, "Incorrect pairing type for createPinEntryView: " + mType);
	return null;
	}

	messageViewCaptionHint.setText(messageIdHint);
	messageView2.setText(messageId);
	mPairingView.setInputType(InputType.TYPE_CLASS_NUMBER);
	mPairingView.setFilters(new InputFilter[] {
	new LengthFilter(maxLength) });

	return view;
	}

	private View createView() {
	View view = getLayoutInflater().inflate(R.layout.bluetooth_pin_confirm, null);
	TextView pairingViewCaption = (TextView) view.findViewById(R.id.pairing_caption);
	TextView pairingViewContent = (TextView) view.findViewById(R.id.pairing_subhead);
	TextView messagePairing = (TextView) view.findViewById(R.id.pairing_code_message);
	CheckBox contactSharing = (CheckBox) view.findViewById(
	R.id.phonebook_sharing_message_confirm_pin);
	contactSharing.setText(getString(R.string.bluetooth_pairing_shares_phonebook,
	mCachedDeviceManager.getName(mDevice)));
	if (mDevice.getPhonebookAccessPermission() == BluetoothDevice.ACCESS_ALLOWED) {
	contactSharing.setChecked(true);
	} else if (mDevice.getPhonebookAccessPermission() == BluetoothDevice.ACCESS_REJECTED){
	contactSharing.setChecked(false);
	} else {
	contactSharing.setChecked(true);
	mDevice.setPhonebookAccessPermission(BluetoothDevice.ACCESS_ALLOWED);
	}

	contactSharing.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
	@Override
	public void onCheckedChanged(CompoundButton compoundButton, boolean isChecked) {
	if (isChecked) {
	mDevice.setPhonebookAccessPermission(BluetoothDevice.ACCESS_ALLOWED);
	} else {
	mDevice.setPhonebookAccessPermission(BluetoothDevice.ACCESS_REJECTED);
	}
	}
	});
	if (mDevice.getBluetoothClass().getDeviceClass()
	== BluetoothClass.Device.AUDIO_VIDEO_HANDSFREE) {
	contactSharing.setVisibility(View.VISIBLE);
	} else {
	contactSharing.setVisibility(View.GONE);
	}

	String messageCaption = null;
	String pairingContent = null;
	switch (mType) {
	case BluetoothDevice.PAIRING_VARIANT_DISPLAY_PASSKEY:
	case BluetoothDevice.PAIRING_VARIANT_DISPLAY_PIN:
	messagePairing.setVisibility(View.VISIBLE);
	case BluetoothDevice.PAIRING_VARIANT_PASSKEY_CONFIRMATION:
	pairingContent = mPairingKey;
	break;

	case BluetoothDevice.PAIRING_VARIANT_CONSENT:
	case BluetoothDevice.PAIRING_VARIANT_OOB_CONSENT:
	messagePairing.setVisibility(View.VISIBLE);
	break;

	default:
	Log.e(TAG, "Incorrect pairing type received, not creating view");
	return null;
	}

	if (pairingContent != null) {
	pairingViewCaption.setVisibility(View.VISIBLE);
	pairingViewContent.setVisibility(View.VISIBLE);
	pairingViewContent.setText(pairingContent);
	}

	return view;
	}

	private void createConfirmationDialog() {
	final AlertController.AlertParams p = mAlertParams;
	p.mTitle = getString(R.string.bluetooth_pairing_request,
	mCachedDeviceManager.getName(mDevice));
	p.mView = createView();
	p.mPositiveButtonText = getString(R.string.bluetooth_pairing_accept);
	p.mPositiveButtonListener = this;
	p.mNegativeButtonText = getString(R.string.bluetooth_pairing_decline);
	p.mNegativeButtonListener = this;
	setupAlert();
	}

	private void createConsentDialog() {
	final AlertController.AlertParams p = mAlertParams;
	p.mTitle = getString(R.string.bluetooth_pairing_request,
	mCachedDeviceManager.getName(mDevice));
	p.mView = createView();
	p.mPositiveButtonText = getString(R.string.bluetooth_pairing_accept);
	p.mPositiveButtonListener = this;
	p.mNegativeButtonText = getString(R.string.bluetooth_pairing_decline);
	p.mNegativeButtonListener = this;
	setupAlert();
	}

	private void createDisplayPasskeyOrPinDialog() {
	final AlertController.AlertParams p = mAlertParams;
	p.mTitle = getString(R.string.bluetooth_pairing_request,
	mCachedDeviceManager.getName(mDevice));
	p.mView = createView();
	p.mNegativeButtonText = getString(android.R.string.cancel);
	p.mNegativeButtonListener = this;
	setupAlert();

	// Since its only a notification, send an OK to the framework,
	// indicating that the dialog has been displayed.
	if (mType == BluetoothDevice.PAIRING_VARIANT_DISPLAY_PASSKEY) {
	mDevice.setPairingConfirmation(true);
	} else if (mType == BluetoothDevice.PAIRING_VARIANT_DISPLAY_PIN) {
	byte[] pinBytes = BluetoothDevice.convertPinToBytes(mPairingKey);
	mDevice.setPin(pinBytes);
	}
	}

	@Override
	protected void onDestroy() {
	super.onDestroy();
	unregisterReceiver(mReceiver);
	}

	public void afterTextChanged(Editable s) {
	if (mOkButton != null) {
	if (mType == BluetoothDevice.PAIRING_VARIANT_PIN_16_DIGITS) {
	mOkButton.setEnabled(s.length() >= 16);
	} else {
	mOkButton.setEnabled(s.length() > 0);
	}
	}
	}

	private void onPair(String value) {
	switch (mType) {
	case BluetoothDevice.PAIRING_VARIANT_PIN:
	case BluetoothDevice.PAIRING_VARIANT_PIN_16_DIGITS:
	byte[] pinBytes = BluetoothDevice.convertPinToBytes(value);
	if (pinBytes == null) {
	return;
	}
	mDevice.setPin(pinBytes);
	break;

	case BluetoothDevice.PAIRING_VARIANT_PASSKEY:
	int passkey = Integer.parseInt(value);
	mDevice.setPasskey(passkey);
	break;

	case BluetoothDevice.PAIRING_VARIANT_PASSKEY_CONFIRMATION:
	case BluetoothDevice.PAIRING_VARIANT_CONSENT:
	mDevice.setPairingConfirmation(true);
	break;

	case BluetoothDevice.PAIRING_VARIANT_DISPLAY_PASSKEY:
	case BluetoothDevice.PAIRING_VARIANT_DISPLAY_PIN:
	// Do nothing.
	break;

	case BluetoothDevice.PAIRING_VARIANT_OOB_CONSENT:
	mDevice.setRemoteOutOfBandData();
	break;

	default:
	Log.e(TAG, "Incorrect pairing type received");
	}
	}

	private void onCancel() {
	mDevice.cancelPairingUserInput();
	}

	public boolean onKeyDown(int keyCode, KeyEvent event) {
	if (keyCode == KeyEvent.KEYCODE_BACK) {
	onCancel();
	}
	return super.onKeyDown(keyCode,event);
	}

	public void onClick(DialogInterface dialog, int which) {
	switch (which) {
	case BUTTON_POSITIVE:
	if (mPairingView != null) {
	onPair(mPairingView.getText().toString());
	} else {
	onPair(null);
	}
	break;

	case BUTTON_NEGATIVE:
	default:
	onCancel();
	break;
	}
	}

	/* Not used */
	public void beforeTextChanged(CharSequence s, int start, int count, int after) {
	}

	/* Not used */
	public void onTextChanged(CharSequence s, int start, int before, int count) {
	}

	public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
	// change input type for soft keyboard to numeric or alphanumeric
	if (isChecked) {
	mPairingView.setInputType(InputType.TYPE_CLASS_TEXT);
	} else {
	mPairingView.setInputType(InputType.TYPE_CLASS_NUMBER);
	}
	}
	}