6c97742c88
Always add the bt profile to profile list on the arrive of a connect event. Previously, the connect event is ignored if it is a profile that's not known ahead of time.
816 lines
28 KiB
Java
816 lines
28 KiB
Java
/*
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* Copyright (C) 2008 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.app.AlertDialog;
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import android.bluetooth.BluetoothClass;
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import android.bluetooth.BluetoothDevice;
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import android.content.Context;
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import android.content.DialogInterface;
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import android.content.Intent;
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import android.content.res.Resources;
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import android.text.TextUtils;
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import android.util.Log;
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import android.view.ContextMenu;
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import android.view.Menu;
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import android.view.MenuItem;
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import com.android.settings.R;
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import com.android.settings.bluetooth.LocalBluetoothProfileManager.Profile;
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import java.text.DateFormat;
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import java.util.ArrayList;
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import java.util.Date;
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import java.util.Iterator;
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import java.util.LinkedList;
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import java.util.List;
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/**
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* LocalBluetoothDevice represents a remote Bluetooth device. It contains
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* attributes of the device (such as the address, name, RSSI, etc.) and
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* functionality that can be performed on the device (connect, pair, disconnect,
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* etc.).
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*/
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public class LocalBluetoothDevice implements Comparable<LocalBluetoothDevice> {
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private static final String TAG = "LocalBluetoothDevice";
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private static final boolean D = LocalBluetoothManager.D;
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private static final boolean V = LocalBluetoothManager.V;
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private static final int CONTEXT_ITEM_CONNECT = Menu.FIRST + 1;
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private static final int CONTEXT_ITEM_DISCONNECT = Menu.FIRST + 2;
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private static final int CONTEXT_ITEM_UNPAIR = Menu.FIRST + 3;
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private static final int CONTEXT_ITEM_CONNECT_ADVANCED = Menu.FIRST + 4;
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private final String mAddress;
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private String mName;
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private short mRssi;
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private int mBtClass = BluetoothClass.ERROR;
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private List<Profile> mProfiles = new ArrayList<Profile>();
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private boolean mVisible;
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private final LocalBluetoothManager mLocalManager;
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private List<Callback> mCallbacks = new ArrayList<Callback>();
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/**
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* When we connect to multiple profiles, we only want to display a single
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* error even if they all fail. This tracks that state.
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*/
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private boolean mIsConnectingErrorPossible;
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// Max time to hold the work queue if we don't get or missed a response
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// from the bt framework.
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private static final long MAX_WAIT_TIME_FOR_FRAMEWORK = 25 * 1000;
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private enum BluetoothCommand {
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CONNECT, DISCONNECT,
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}
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class BluetoothJob {
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final BluetoothCommand command; // CONNECT, DISCONNECT
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final LocalBluetoothDevice device;
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final Profile profile; // HEADSET, A2DP, etc
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// 0 means this command was not been sent to the bt framework.
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long timeSent;
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public BluetoothJob(BluetoothCommand command,
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LocalBluetoothDevice device, Profile profile) {
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this.command = command;
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this.device = device;
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this.profile = profile;
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this.timeSent = 0;
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}
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@Override
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public String toString() {
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StringBuilder sb = new StringBuilder();
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sb.append(command.name());
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sb.append(" Address:").append(device.mAddress);
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sb.append(" Profile:").append(profile.name());
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sb.append(" TimeSent:");
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if (timeSent == 0) {
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sb.append("not yet");
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} else {
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sb.append(DateFormat.getTimeInstance().format(new Date(timeSent)));
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}
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return sb.toString();
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}
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}
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/**
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* We want to serialize connect and disconnect calls. http://b/170538
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* This are some headsets that may have L2CAP resource limitation. We want
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* to limit the bt bandwidth usage.
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*
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* A queue to keep track of asynchronous calls to the bt framework. The
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* first item, if exist, should be in progress i.e. went to the bt framework
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* already, waiting for a notification to come back. The second item and
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* beyond have not been sent to the bt framework yet.
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*/
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private static LinkedList<BluetoothJob> workQueue = new LinkedList<BluetoothJob>();
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private void queueCommand(BluetoothJob job) {
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if (D) {
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Log.d(TAG, workQueue.toString());
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}
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synchronized (workQueue) {
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boolean processNow = pruneQueue(job);
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// Add job to queue
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if (D) {
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Log.d(TAG, "Adding: " + job.toString());
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}
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workQueue.add(job);
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// if there's nothing pending from before, send the command to bt
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// framework immediately.
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if (workQueue.size() == 1 || processNow) {
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// If the failed to process, just drop it from the queue.
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// There will be no callback to remove this from the queue.
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processCommands();
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}
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}
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}
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private boolean pruneQueue(BluetoothJob job) {
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boolean removedStaleItems = false;
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long now = System.currentTimeMillis();
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Iterator<BluetoothJob> it = workQueue.iterator();
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while (it.hasNext()) {
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BluetoothJob existingJob = it.next();
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// Remove any pending CONNECTS when we receive a DISCONNECT
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if (job != null && job.command == BluetoothCommand.DISCONNECT) {
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if (existingJob.timeSent == 0
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&& existingJob.command == BluetoothCommand.CONNECT
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&& existingJob.device.mAddress.equals(job.device.mAddress)
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&& existingJob.profile == job.profile) {
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if (D) {
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Log.d(TAG, "Removed because of a pending disconnect. " + existingJob);
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}
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it.remove();
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continue;
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}
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}
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// Defensive Code: Remove any job that older than a preset time.
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// We never got a call back. It is better to have overlapping
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// calls than to get stuck.
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if (existingJob.timeSent != 0
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&& (now - existingJob.timeSent) >= MAX_WAIT_TIME_FOR_FRAMEWORK) {
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Log.w(TAG, "Timeout. Removing Job:" + existingJob.toString());
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it.remove();
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removedStaleItems = true;
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continue;
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}
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}
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return removedStaleItems;
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}
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private boolean processCommand(BluetoothJob job) {
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boolean successful = false;
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if (job.timeSent == 0) {
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job.timeSent = System.currentTimeMillis();
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switch (job.command) {
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case CONNECT:
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successful = connectInt(job.device, job.profile);
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break;
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case DISCONNECT:
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successful = disconnectInt(job.device, job.profile);
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break;
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}
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if (successful) {
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if (D) {
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Log.d(TAG, "Command sent successfully:" + job.toString());
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}
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} else if (V) {
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Log.v(TAG, "Framework rejected command immediately:" + job.toString());
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}
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} else if (D) {
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Log.d(TAG, "Job already has a sent time. Skip. " + job.toString());
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}
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return successful;
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}
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public void onProfileStateChanged(Profile profile, int newProfileState) {
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if (D) {
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Log.d(TAG, "onProfileStateChanged:" + workQueue.toString());
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}
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int newState = LocalBluetoothProfileManager.getProfileManager(mLocalManager,
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profile).convertState(newProfileState);
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if (newState == SettingsBtStatus.CONNECTION_STATUS_CONNECTED) {
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if (!mProfiles.contains(profile)) {
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mProfiles.add(profile);
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}
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}
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/* Ignore the transient states e.g. connecting, disconnecting */
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if (newState == SettingsBtStatus.CONNECTION_STATUS_CONNECTED ||
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newState == SettingsBtStatus.CONNECTION_STATUS_DISCONNECTED) {
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BluetoothJob job = workQueue.peek();
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if (job == null) {
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return;
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} else if (job.device.mAddress != mAddress) {
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// This can happen in 2 cases: 1) BT device initiated pairing and
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// 2) disconnects of one headset that's triggered by connects of
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// another.
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if (D) {
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Log.d(TAG, "mAddresses:" + mAddress + " != head:" + job.toString());
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}
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// Check to see if we need to remove the stale items from the queue
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if (!pruneQueue(null)) {
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// nothing in the queue was modify. Just ignore the notification and return.
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return;
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}
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} else {
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// Remove the first item and process the next one
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workQueue.poll();
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}
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processCommands();
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}
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}
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/*
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* This method is called in 2 places:
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* 1) queryCommand() - when someone or something want to connect or
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* disconnect
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* 2) onProfileStateChanged() - when the framework sends an intent
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* notification when it finishes processing a command
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*/
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private void processCommands() {
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if (D) {
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Log.d(TAG, "processCommands:" + workQueue.toString());
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}
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Iterator<BluetoothJob> it = workQueue.iterator();
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while (it.hasNext()) {
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BluetoothJob job = it.next();
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if (processCommand(job)) {
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// Sent to bt framework. Done for now. Will remove this job
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// from queue when we get an event
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return;
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} else {
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/*
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* If the command failed immediately, there will be no event
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* callbacks. So delete the job immediately and move on to the
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* next one
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*/
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it.remove();
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}
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}
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}
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LocalBluetoothDevice(Context context, String address) {
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mLocalManager = LocalBluetoothManager.getInstance(context);
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if (mLocalManager == null) {
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throw new IllegalStateException(
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"Cannot use LocalBluetoothDevice without Bluetooth hardware");
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}
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mAddress = address;
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fillData();
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}
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public void onClicked() {
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int bondState = getBondState();
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if (isConnected()) {
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askDisconnect();
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} else if (bondState == BluetoothDevice.BOND_BONDED) {
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connect();
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} else if (bondState == BluetoothDevice.BOND_NOT_BONDED) {
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pair();
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}
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}
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public void disconnect() {
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for (Profile profile : mProfiles) {
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disconnect(profile);
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}
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}
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public void disconnect(Profile profile) {
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queueCommand(new BluetoothJob(BluetoothCommand.DISCONNECT, this, profile));
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}
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private boolean disconnectInt(LocalBluetoothDevice device, Profile profile) {
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LocalBluetoothProfileManager profileManager =
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LocalBluetoothProfileManager.getProfileManager(mLocalManager, profile);
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int status = profileManager.getConnectionStatus(device.mAddress);
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if (SettingsBtStatus.isConnectionStatusConnected(status)) {
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if (profileManager.disconnect(device.mAddress) == BluetoothDevice.RESULT_SUCCESS) {
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return true;
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}
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}
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return false;
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}
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public void askDisconnect() {
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Context context = mLocalManager.getForegroundActivity();
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if (context == null) {
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// Cannot ask, since we need an activity context
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disconnect();
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return;
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}
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Resources res = context.getResources();
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String name = getName();
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if (TextUtils.isEmpty(name)) {
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name = res.getString(R.string.bluetooth_device);
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}
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String message = res.getString(R.string.bluetooth_disconnect_blank, name);
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DialogInterface.OnClickListener disconnectListener = new DialogInterface.OnClickListener() {
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public void onClick(DialogInterface dialog, int which) {
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disconnect();
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}
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};
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AlertDialog ad = new AlertDialog.Builder(context)
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.setTitle(getName())
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.setMessage(message)
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.setPositiveButton(android.R.string.ok, disconnectListener)
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.setNegativeButton(android.R.string.cancel, null)
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.show();
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}
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public void connect() {
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if (!ensurePaired()) return;
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// Reset the only-show-one-error-dialog tracking variable
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mIsConnectingErrorPossible = true;
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Context context = mLocalManager.getContext();
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boolean hasAtLeastOnePreferredProfile = false;
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for (Profile profile : mProfiles) {
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LocalBluetoothProfileManager profileManager =
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LocalBluetoothProfileManager.getProfileManager(mLocalManager, profile);
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if (profileManager.isPreferred(mAddress)) {
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hasAtLeastOnePreferredProfile = true;
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queueCommand(new BluetoothJob(BluetoothCommand.CONNECT, this, profile));
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}
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}
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if (!hasAtLeastOnePreferredProfile) {
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connectAndPreferAllProfiles();
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}
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}
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private void connectAndPreferAllProfiles() {
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if (!ensurePaired()) return;
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// Reset the only-show-one-error-dialog tracking variable
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mIsConnectingErrorPossible = true;
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Context context = mLocalManager.getContext();
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for (Profile profile : mProfiles) {
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LocalBluetoothProfileManager profileManager =
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LocalBluetoothProfileManager.getProfileManager(mLocalManager, profile);
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profileManager.setPreferred(mAddress, true);
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queueCommand(new BluetoothJob(BluetoothCommand.CONNECT, this, profile));
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}
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}
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public void connect(Profile profile) {
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// Reset the only-show-one-error-dialog tracking variable
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mIsConnectingErrorPossible = true;
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queueCommand(new BluetoothJob(BluetoothCommand.CONNECT, this, profile));
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}
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private boolean connectInt(LocalBluetoothDevice device, Profile profile) {
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if (!device.ensurePaired()) return false;
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LocalBluetoothProfileManager profileManager =
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LocalBluetoothProfileManager.getProfileManager(mLocalManager, profile);
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int status = profileManager.getConnectionStatus(device.mAddress);
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if (!SettingsBtStatus.isConnectionStatusConnected(status)) {
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if (profileManager.connect(device.mAddress) == BluetoothDevice.RESULT_SUCCESS) {
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return true;
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}
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Log.i(TAG, "Failed to connect " + profile.toString() + " to " + device.mName);
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}
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Log.i(TAG, "Not connected");
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return false;
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}
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public void showConnectingError() {
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if (!mIsConnectingErrorPossible) return;
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mIsConnectingErrorPossible = false;
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mLocalManager.showError(mAddress, R.string.bluetooth_error_title,
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R.string.bluetooth_connecting_error_message);
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}
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private boolean ensurePaired() {
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if (getBondState() == BluetoothDevice.BOND_NOT_BONDED) {
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pair();
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return false;
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} else {
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return true;
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}
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}
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public void pair() {
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BluetoothDevice manager = mLocalManager.getBluetoothManager();
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// Pairing is unreliable while scanning, so cancel discovery
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if (manager.isDiscovering()) {
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manager.cancelDiscovery();
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}
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if (!mLocalManager.getBluetoothManager().createBond(mAddress)) {
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mLocalManager.showError(mAddress, R.string.bluetooth_error_title,
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R.string.bluetooth_pairing_error_message);
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}
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}
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public void unpair() {
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synchronized (workQueue) {
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// Remove any pending commands for this device
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boolean processNow = false;
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Iterator<BluetoothJob> it = workQueue.iterator();
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while (it.hasNext()) {
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BluetoothJob job = it.next();
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if (job.device.mAddress.equals(this.mAddress)) {
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it.remove();
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if (job.timeSent != 0) {
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processNow = true;
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}
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}
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}
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if (processNow) {
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processCommands();
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}
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}
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BluetoothDevice manager = mLocalManager.getBluetoothManager();
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switch (getBondState()) {
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case BluetoothDevice.BOND_BONDED:
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manager.removeBond(mAddress);
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break;
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case BluetoothDevice.BOND_BONDING:
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manager.cancelBondProcess(mAddress);
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break;
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}
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}
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private void fillData() {
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BluetoothDevice manager = mLocalManager.getBluetoothManager();
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fetchName();
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fetchBtClass();
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mVisible = false;
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dispatchAttributesChanged();
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}
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public String getAddress() {
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return mAddress;
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}
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public String getName() {
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return mName;
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}
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public void refreshName() {
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fetchName();
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dispatchAttributesChanged();
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}
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private void fetchName() {
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mName = mLocalManager.getBluetoothManager().getRemoteName(mAddress);
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if (TextUtils.isEmpty(mName)) {
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mName = mAddress;
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}
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}
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public void refresh() {
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dispatchAttributesChanged();
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}
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public boolean isVisible() {
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return mVisible;
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}
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void setVisible(boolean visible) {
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if (mVisible != visible) {
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mVisible = visible;
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dispatchAttributesChanged();
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}
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}
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public int getBondState() {
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return mLocalManager.getBluetoothManager().getBondState(mAddress);
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}
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void setRssi(short rssi) {
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if (mRssi != rssi) {
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mRssi = rssi;
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dispatchAttributesChanged();
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}
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}
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/**
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* Checks whether we are connected to this device (any profile counts).
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*
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* @return Whether it is connected.
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*/
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public boolean isConnected() {
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for (Profile profile : mProfiles) {
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int status = LocalBluetoothProfileManager.getProfileManager(mLocalManager, profile)
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.getConnectionStatus(mAddress);
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if (SettingsBtStatus.isConnectionStatusConnected(status)) {
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return true;
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}
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}
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return false;
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}
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public boolean isBusy() {
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for (Profile profile : mProfiles) {
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int status = LocalBluetoothProfileManager.getProfileManager(mLocalManager, profile)
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.getConnectionStatus(mAddress);
|
|
if (SettingsBtStatus.isConnectionStatusBusy(status)) {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
if (getBondState() == BluetoothDevice.BOND_BONDING) {
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
public int getBtClassDrawable() {
|
|
|
|
// First try looking at profiles
|
|
if (mProfiles.contains(Profile.A2DP)) {
|
|
return R.drawable.ic_bt_headphones_a2dp;
|
|
} else if (mProfiles.contains(Profile.HEADSET)) {
|
|
return R.drawable.ic_bt_headset_hfp;
|
|
}
|
|
|
|
// Fallback on class
|
|
switch (BluetoothClass.Device.Major.getDeviceMajor(mBtClass)) {
|
|
case BluetoothClass.Device.Major.COMPUTER:
|
|
return R.drawable.ic_bt_laptop;
|
|
|
|
case BluetoothClass.Device.Major.PHONE:
|
|
return R.drawable.ic_bt_cellphone;
|
|
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Fetches a new value for the cached BT class.
|
|
*/
|
|
private void fetchBtClass() {
|
|
mBtClass = mLocalManager.getBluetoothManager().getRemoteClass(mAddress);
|
|
if (mBtClass != BluetoothClass.ERROR) {
|
|
LocalBluetoothProfileManager.fill(mBtClass, mProfiles);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Refreshes the UI for the BT class, including fetching the latest value
|
|
* for the class.
|
|
*/
|
|
public void refreshBtClass() {
|
|
fetchBtClass();
|
|
dispatchAttributesChanged();
|
|
}
|
|
|
|
public int getSummary() {
|
|
// TODO: clean up
|
|
int oneOffSummary = getOneOffSummary();
|
|
if (oneOffSummary != 0) {
|
|
return oneOffSummary;
|
|
}
|
|
|
|
for (Profile profile : mProfiles) {
|
|
LocalBluetoothProfileManager profileManager = LocalBluetoothProfileManager
|
|
.getProfileManager(mLocalManager, profile);
|
|
int connectionStatus = profileManager.getConnectionStatus(mAddress);
|
|
|
|
if (SettingsBtStatus.isConnectionStatusConnected(connectionStatus) ||
|
|
connectionStatus == SettingsBtStatus.CONNECTION_STATUS_CONNECTING ||
|
|
connectionStatus == SettingsBtStatus.CONNECTION_STATUS_DISCONNECTING) {
|
|
return SettingsBtStatus.getConnectionStatusSummary(connectionStatus);
|
|
}
|
|
}
|
|
|
|
return SettingsBtStatus.getPairingStatusSummary(getBondState());
|
|
}
|
|
|
|
/**
|
|
* We have special summaries when particular profiles are connected. This
|
|
* checks for those states and returns an applicable summary.
|
|
*
|
|
* @return A one-off summary that is applicable for the current state, or 0.
|
|
*/
|
|
private int getOneOffSummary() {
|
|
boolean isA2dpConnected = false, isHeadsetConnected = false, isConnecting = false;
|
|
|
|
if (mProfiles.contains(Profile.A2DP)) {
|
|
LocalBluetoothProfileManager profileManager = LocalBluetoothProfileManager
|
|
.getProfileManager(mLocalManager, Profile.A2DP);
|
|
isConnecting = profileManager.getConnectionStatus(mAddress) ==
|
|
SettingsBtStatus.CONNECTION_STATUS_CONNECTING;
|
|
isA2dpConnected = profileManager.isConnected(mAddress);
|
|
}
|
|
|
|
if (mProfiles.contains(Profile.HEADSET)) {
|
|
LocalBluetoothProfileManager profileManager = LocalBluetoothProfileManager
|
|
.getProfileManager(mLocalManager, Profile.HEADSET);
|
|
isConnecting |= profileManager.getConnectionStatus(mAddress) ==
|
|
SettingsBtStatus.CONNECTION_STATUS_CONNECTING;
|
|
isHeadsetConnected = profileManager.isConnected(mAddress);
|
|
}
|
|
|
|
if (isConnecting) {
|
|
// If any of these important profiles is connecting, prefer that
|
|
return SettingsBtStatus.getConnectionStatusSummary(
|
|
SettingsBtStatus.CONNECTION_STATUS_CONNECTING);
|
|
} else if (isA2dpConnected && isHeadsetConnected) {
|
|
return R.string.bluetooth_summary_connected_to_a2dp_headset;
|
|
} else if (isA2dpConnected) {
|
|
return R.string.bluetooth_summary_connected_to_a2dp;
|
|
} else if (isHeadsetConnected) {
|
|
return R.string.bluetooth_summary_connected_to_headset;
|
|
} else {
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
public List<Profile> getProfiles() {
|
|
return new ArrayList<Profile>(mProfiles);
|
|
}
|
|
|
|
public void onCreateContextMenu(ContextMenu menu) {
|
|
// No context menu if it is busy (none of these items are applicable if busy)
|
|
if (isBusy()) return;
|
|
|
|
int bondState = getBondState();
|
|
boolean isConnected = isConnected();
|
|
boolean hasProfiles = mProfiles.size() > 0;
|
|
|
|
menu.setHeaderTitle(getName());
|
|
|
|
if (isConnected) {
|
|
menu.add(0, CONTEXT_ITEM_DISCONNECT, 0, R.string.bluetooth_device_context_disconnect);
|
|
} else if (hasProfiles) {
|
|
// For connection action, show either "Connect" or "Pair & connect"
|
|
int connectString = (bondState == BluetoothDevice.BOND_NOT_BONDED)
|
|
? R.string.bluetooth_device_context_pair_connect
|
|
: R.string.bluetooth_device_context_connect;
|
|
menu.add(0, CONTEXT_ITEM_CONNECT, 0, connectString);
|
|
}
|
|
|
|
if (bondState == BluetoothDevice.BOND_BONDED) {
|
|
// For unpair action, show either "Unpair" or "Disconnect & unpair"
|
|
int unpairString = isConnected
|
|
? R.string.bluetooth_device_context_disconnect_unpair
|
|
: R.string.bluetooth_device_context_unpair;
|
|
menu.add(0, CONTEXT_ITEM_UNPAIR, 0, unpairString);
|
|
|
|
// Show the connection options item
|
|
menu.add(0, CONTEXT_ITEM_CONNECT_ADVANCED, 0,
|
|
R.string.bluetooth_device_context_connect_advanced);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Called when a context menu item is clicked.
|
|
*
|
|
* @param item The item that was clicked.
|
|
*/
|
|
public void onContextItemSelected(MenuItem item) {
|
|
switch (item.getItemId()) {
|
|
case CONTEXT_ITEM_DISCONNECT:
|
|
disconnect();
|
|
break;
|
|
|
|
case CONTEXT_ITEM_CONNECT:
|
|
connect();
|
|
break;
|
|
|
|
case CONTEXT_ITEM_UNPAIR:
|
|
mLocalManager.getBluetoothManager().disconnectRemoteDeviceAcl(mAddress);
|
|
unpair();
|
|
break;
|
|
|
|
case CONTEXT_ITEM_CONNECT_ADVANCED:
|
|
Intent intent = new Intent();
|
|
// Need an activity context to open this in our task
|
|
Context context = mLocalManager.getForegroundActivity();
|
|
if (context == null) {
|
|
// Fallback on application context, and open in a new task
|
|
context = mLocalManager.getContext();
|
|
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
|
|
}
|
|
intent.setClass(context, ConnectSpecificProfilesActivity.class);
|
|
intent.putExtra(ConnectSpecificProfilesActivity.EXTRA_ADDRESS, mAddress);
|
|
context.startActivity(intent);
|
|
break;
|
|
}
|
|
}
|
|
|
|
public void registerCallback(Callback callback) {
|
|
synchronized (mCallbacks) {
|
|
mCallbacks.add(callback);
|
|
}
|
|
}
|
|
|
|
public void unregisterCallback(Callback callback) {
|
|
synchronized (mCallbacks) {
|
|
mCallbacks.remove(callback);
|
|
}
|
|
}
|
|
|
|
private void dispatchAttributesChanged() {
|
|
synchronized (mCallbacks) {
|
|
for (Callback callback : mCallbacks) {
|
|
callback.onDeviceAttributesChanged(this);
|
|
}
|
|
}
|
|
}
|
|
|
|
@Override
|
|
public String toString() {
|
|
return mAddress;
|
|
}
|
|
|
|
@Override
|
|
public boolean equals(Object o) {
|
|
if ((o == null) || !(o instanceof LocalBluetoothDevice)) {
|
|
throw new ClassCastException();
|
|
}
|
|
|
|
return mAddress.equals(((LocalBluetoothDevice) o).mAddress);
|
|
}
|
|
|
|
@Override
|
|
public int hashCode() {
|
|
return mAddress.hashCode();
|
|
}
|
|
|
|
public int compareTo(LocalBluetoothDevice another) {
|
|
int comparison;
|
|
|
|
// Connected above not connected
|
|
comparison = (another.isConnected() ? 1 : 0) - (isConnected() ? 1 : 0);
|
|
if (comparison != 0) return comparison;
|
|
|
|
// Paired above not paired
|
|
comparison = (another.getBondState() == BluetoothDevice.BOND_BONDED ? 1 : 0) -
|
|
(getBondState() == BluetoothDevice.BOND_BONDED ? 1 : 0);
|
|
if (comparison != 0) return comparison;
|
|
|
|
// Visible above not visible
|
|
comparison = (another.mVisible ? 1 : 0) - (mVisible ? 1 : 0);
|
|
if (comparison != 0) return comparison;
|
|
|
|
// Stronger signal above weaker signal
|
|
comparison = another.mRssi - mRssi;
|
|
if (comparison != 0) return comparison;
|
|
|
|
// Fallback on name
|
|
return getName().compareTo(another.getName());
|
|
}
|
|
|
|
public interface Callback {
|
|
void onDeviceAttributesChanged(LocalBluetoothDevice device);
|
|
}
|
|
}
|