1 /* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.settings.bluetooth; 18 19 import android.bluetooth.BluetoothAdapter; 20 import android.bluetooth.BluetoothDevice; 21 import android.bluetooth.BluetoothDevicePicker; 22 import android.content.Intent; 23 import android.os.Bundle; 24 25 import com.android.settings.R; 26 27 /** 28 * BluetoothSettings is the Settings screen for Bluetooth configuration and 29 * connection management. 30 */ 31 public final class DevicePickerFragment extends DeviceListPreferenceFragment { 32 33 private boolean mNeedAuth; 34 private String mLaunchPackage; 35 private String mLaunchClass; 36 private boolean mStartScanOnResume; 37 38 @Override addPreferencesForActivity()39 void addPreferencesForActivity() { 40 addPreferencesFromResource(R.xml.device_picker); 41 42 Intent intent = getActivity().getIntent(); 43 mNeedAuth = intent.getBooleanExtra(BluetoothDevicePicker.EXTRA_NEED_AUTH, false); 44 setFilter(intent.getIntExtra(BluetoothDevicePicker.EXTRA_FILTER_TYPE, 45 BluetoothDevicePicker.FILTER_TYPE_ALL)); 46 mLaunchPackage = intent.getStringExtra(BluetoothDevicePicker.EXTRA_LAUNCH_PACKAGE); 47 mLaunchClass = intent.getStringExtra(BluetoothDevicePicker.EXTRA_LAUNCH_CLASS); 48 } 49 50 @Override onCreate(Bundle savedInstanceState)51 public void onCreate(Bundle savedInstanceState) { 52 super.onCreate(savedInstanceState); 53 getActivity().setTitle(getString(R.string.device_picker)); 54 mStartScanOnResume = (savedInstanceState == null); // don't start scan after rotation 55 } 56 57 @Override onResume()58 public void onResume() { 59 super.onResume(); 60 addCachedDevices(); 61 if (mStartScanOnResume) { 62 mLocalAdapter.startScanning(true); 63 mStartScanOnResume = false; 64 } 65 } 66 67 @Override onDevicePreferenceClick(BluetoothDevicePreference btPreference)68 void onDevicePreferenceClick(BluetoothDevicePreference btPreference) { 69 mLocalAdapter.stopScanning(); 70 LocalBluetoothPreferences.persistSelectedDeviceInPicker( 71 getActivity(), mSelectedDevice.getAddress()); 72 if ((btPreference.getCachedDevice().getBondState() == 73 BluetoothDevice.BOND_BONDED) || !mNeedAuth) { 74 sendDevicePickedIntent(mSelectedDevice); 75 finish(); 76 } else { 77 super.onDevicePreferenceClick(btPreference); 78 } 79 } 80 onDeviceBondStateChanged(CachedBluetoothDevice cachedDevice, int bondState)81 public void onDeviceBondStateChanged(CachedBluetoothDevice cachedDevice, 82 int bondState) { 83 if (bondState == BluetoothDevice.BOND_BONDED) { 84 BluetoothDevice device = cachedDevice.getDevice(); 85 if (device.equals(mSelectedDevice)) { 86 sendDevicePickedIntent(device); 87 finish(); 88 } 89 } 90 } 91 92 @Override onBluetoothStateChanged(int bluetoothState)93 public void onBluetoothStateChanged(int bluetoothState) { 94 super.onBluetoothStateChanged(bluetoothState); 95 96 if (bluetoothState == BluetoothAdapter.STATE_ON) { 97 mLocalAdapter.startScanning(false); 98 } 99 } 100 sendDevicePickedIntent(BluetoothDevice device)101 private void sendDevicePickedIntent(BluetoothDevice device) { 102 Intent intent = new Intent(BluetoothDevicePicker.ACTION_DEVICE_SELECTED); 103 intent.putExtra(BluetoothDevice.EXTRA_DEVICE, device); 104 if (mLaunchPackage != null && mLaunchClass != null) { 105 intent.setClassName(mLaunchPackage, mLaunchClass); 106 } 107 getActivity().sendBroadcast(intent); 108 } 109 } 110