Refactor Bluetooth settings for readability and performance.
Major refactoring of Bluetooth settings classes. - Moved all functionality from LocalBluetoothManager into new LocalBluetoothAdapter and LocalBluetoothPreferences, and into existing classes. - Refactored functionality from BluetoothEventRedirector into new BluetoothEventManager class, deleting the original version. New version uses a HashMap from action Strings to implementers of the BluetoothEventManager.Handler interface. - Created new BluetoothDiscoveryReceiver to update shared preferences timestamp for Bluetooth discovery start/finish. This is the only event handling we need to do when the settings app is not visible, so it has its own receiver entry in AndroidManifest.xml. Edits are written using QueuedWork.singleThreadExecutor(), which BroadcastReceiver knows about and will wait for completion, eliminating the need for PendingResult. - Miscellaneous cleanups to code style and logic for readability. - Pulled some large switch statement code blocks into new methods. - Changed all Bluetooth state references to the new BluetoothProfile constants. - Changed use of deprecated Notification constructor in BluetoothPairingRequest to use Notification.Builder. - Moved Utf8ByteLengthFilter helper function from BluetoothNamePreference into its own class, and moved test cases into the same package. - Moved all LocalBluetoothProfileManager functionality related to specific profiles into new top-level classes (A2dpProfile, etc.), all implementing the LocalBluetoothProfile interface. - Moved all UI-related methods from CachedBluetoothDevice into the class that uses the method, or into the static Utils class for shared methods. Change-Id: I6d49b7f4ae0c7d7dcf62551ee40b51ecb5fe4f47
This commit is contained in:
Jake Hamby
198
src/com/android/settings/bluetooth/HeadsetProfile.java
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198
src/com/android/settings/bluetooth/HeadsetProfile.java
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/*
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* Copyright (C) 2011 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.settings.bluetooth;
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import android.bluetooth.BluetoothClass;
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import android.bluetooth.BluetoothDevice;
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import android.bluetooth.BluetoothHeadset;
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import android.bluetooth.BluetoothProfile;
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import android.bluetooth.BluetoothUuid;
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import android.content.Context;
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import android.os.Handler;
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import android.os.ParcelUuid;
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import android.util.Log;
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import com.android.settings.R;
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import java.util.ArrayList;
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import java.util.List;
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/**
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* HeadsetProfile handles Bluetooth HFP and Headset profiles.
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*/
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final class HeadsetProfile implements LocalBluetoothProfile {
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private static final String TAG = "HeadsetProfile";
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private BluetoothHeadset mService;
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private boolean mProfileReady;
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private final LocalBluetoothAdapter mLocalAdapter;
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private final CachedBluetoothDeviceManager mDeviceManager;
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private final LocalBluetoothProfileManager mProfileManager;
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static final ParcelUuid[] UUIDS = {
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BluetoothUuid.HSP,
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BluetoothUuid.Handsfree,
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};
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static final String NAME = "HEADSET";
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// Order of this profile in device profiles list
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private static final int ORDINAL = 0;
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// These callbacks run on the main thread.
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private final class HeadsetServiceListener
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implements BluetoothProfile.ServiceListener {
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public void onServiceConnected(int profile, BluetoothProfile proxy) {
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mService = (BluetoothHeadset) proxy;
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mProfileReady = true;
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// We just bound to the service, so refresh the UI of the
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// headset device.
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List<BluetoothDevice> deviceList = mService.getConnectedDevices();
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if (deviceList.isEmpty()) {
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return;
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}
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BluetoothDevice firstDevice = deviceList.get(0);
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CachedBluetoothDevice device = mDeviceManager.findDevice(firstDevice);
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// we may add a new device here, but generally this should not happen
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if (device == null) {
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Log.w(TAG, "HeadsetProfile found new device: " + firstDevice);
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device = mDeviceManager.addDevice(mLocalAdapter, mProfileManager, firstDevice);
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}
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device.onProfileStateChanged(HeadsetProfile.this,
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BluetoothProfile.STATE_CONNECTED);
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mProfileManager.callServiceConnectedListeners();
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}
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public void onServiceDisconnected(int profile) {
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mProfileReady = false;
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mService = null;
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mProfileManager.callServiceDisconnectedListeners();
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}
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}
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// TODO(): The calls must get queued if mService becomes null.
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// It can happen when the phone app crashes for some reason.
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// All callers should have service listeners. Dock Service is the only
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// one right now.
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HeadsetProfile(Context context, LocalBluetoothAdapter adapter,
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CachedBluetoothDeviceManager deviceManager,
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LocalBluetoothProfileManager profileManager) {
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mLocalAdapter = adapter;
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mDeviceManager = deviceManager;
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mProfileManager = profileManager;
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mLocalAdapter.getProfileProxy(context, new HeadsetServiceListener(),
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BluetoothProfile.HEADSET);
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}
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public boolean isConnectable() {
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return true;
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}
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public boolean isAutoConnectable() {
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return true;
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}
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public boolean connect(BluetoothDevice device) {
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List<BluetoothDevice> sinks = mService.getConnectedDevices();
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if (sinks != null) {
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for (BluetoothDevice sink : sinks) {
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mService.disconnect(sink);
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}
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}
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return mService.connect(device);
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}
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public boolean disconnect(BluetoothDevice device) {
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List<BluetoothDevice> deviceList = mService.getConnectedDevices();
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if (!deviceList.isEmpty() && deviceList.get(0).equals(device)) {
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// Downgrade priority as user is disconnecting the headset.
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if (mService.getPriority(device) > BluetoothProfile.PRIORITY_ON) {
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mService.setPriority(device, BluetoothProfile.PRIORITY_ON);
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}
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return mService.disconnect(device);
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} else {
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return false;
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}
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}
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public int getConnectionStatus(BluetoothDevice device) {
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List<BluetoothDevice> deviceList = mService.getConnectedDevices();
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return !deviceList.isEmpty() && deviceList.get(0).equals(device)
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? mService.getConnectionState(device)
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: BluetoothProfile.STATE_DISCONNECTED;
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}
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public boolean isPreferred(BluetoothDevice device) {
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return mService.getPriority(device) > BluetoothProfile.PRIORITY_OFF;
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}
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public int getPreferred(BluetoothDevice device) {
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return mService.getPriority(device);
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}
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public void setPreferred(BluetoothDevice device, boolean preferred) {
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if (preferred) {
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if (mService.getPriority(device) < BluetoothProfile.PRIORITY_ON) {
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mService.setPriority(device, BluetoothProfile.PRIORITY_ON);
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}
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} else {
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mService.setPriority(device, BluetoothProfile.PRIORITY_OFF);
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}
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}
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public synchronized boolean isProfileReady() {
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return mProfileReady;
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}
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public String toString() {
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return NAME;
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}
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public int getOrdinal() {
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return ORDINAL;
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}
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public int getNameResource() {
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return R.string.bluetooth_profile_headset;
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}
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public int getDisconnectResource() {
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return R.string.bluetooth_disconnect_headset_profile;
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}
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public int getSummaryResourceForDevice(BluetoothDevice device) {
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int state = mService.getConnectionState(device);
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switch (state) {
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case BluetoothProfile.STATE_DISCONNECTED:
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return R.string.bluetooth_headset_profile_summary_use_for;
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case BluetoothProfile.STATE_CONNECTED:
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return R.string.bluetooth_headset_profile_summary_connected;
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default:
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return Utils.getConnectionStateSummary(state);
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}
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}
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public int getDrawableResource(BluetoothClass btClass) {
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return R.drawable.ic_bt_headset_hfp;
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}
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}
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