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android/frameworks/base/packages/CompanionDeviceManager/Android.mk Normal file
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# Copyright (C) 2017 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.
LOCAL_PATH:= $(call my-dir)
include $(CLEAR_VARS)
LOCAL_MODULE_TAGS := optional
LOCAL_SRC_FILES := $(call all-java-files-under, src)
LOCAL_PACKAGE_NAME := CompanionDeviceManager
include $(BUILD_PACKAGE)
include $(call all-makefiles-under, $(LOCAL_PATH))

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android/frameworks/base/packages/CompanionDeviceManager/AndroidManifest.xml Normal file
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<?xml version="1.0" encoding="utf-8"?>
<!--
/*
* Copyright (c) 2017 Google Inc.
*
* 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.
*/
-->
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.android.companiondevicemanager">
<permission
android:name="com.android.companiondevicemanager.permission.BIND"
android:protectionLevel="signature" />
<uses-permission android:name="android.permission.BLUETOOTH"/>
<uses-permission android:name="android.permission.BLUETOOTH_ADMIN"/>
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/>
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE"/>
<application
android:allowClearUserData="true"
android:label="@string/app_label"
android:allowBackup="false"
android:supportsRtl="true">
<service
android:name=".DeviceDiscoveryService"
android:permission="android.permission.BIND_COMPANION_DEVICE_MANAGER_SERVICE"
android:exported="true">
</service>
<activity
android:name=".DeviceChooserActivity"
android:theme="@style/ChooserActivity"
android:permission="android.permission.BIND_COMPANION_DEVICE_MANAGER_SERVICE">
<!--TODO include url scheme filter similar to PrintSpooler -->
<intent-filter>
<action android:name="android.companiondevice.START_DISCOVERY" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
</application>
</manifest>

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android/frameworks/base/packages/CompanionDeviceManager/MODULE_LICENSE_APACHE2 Normal file
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android/frameworks/base/packages/CompanionDeviceManager/NOTICE Normal file
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Copyright (c) 2005-2008, 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.
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.
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
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"Work" shall mean the work of authorship, whether in Source or
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(an example is provided in the Appendix below).
"Derivative Works" shall mean any work, whether in Source or Object
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"Contributor" shall mean Licensor and any individual or Legal Entity
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this License, each Contributor hereby grants to You a perpetual,
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worldwide, non-exclusive, no-charge, royalty-free, irrevocable
(except as stated in this section) patent license to make, have made,
use, offer to sell, sell, import, and otherwise transfer the Work,
where such license applies only to those patent claims licensable
by such Contributor that are necessarily infringed by their
Contribution(s) alone or by combination of their Contribution(s)
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institute patent litigation against any entity (including a
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or a Contribution incorporated within the Work constitutes direct
or contributory patent infringement, then any patent licenses
granted to You under this License for that Work shall terminate
as of the date such litigation is filed.
4. Redistribution. You may reproduce and distribute copies of the
Work or Derivative Works thereof in any medium, with or without
modifications, and in Source or Object form, provided that You
meet the following conditions:
(a) You must give any other recipients of the Work or
Derivative Works a copy of this License; and
(b) You must cause any modified files to carry prominent notices
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END OF TERMS AND CONDITIONS

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android/frameworks/base/packages/CompanionDeviceManager/res/drawable/dialog_background.xml Normal file
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<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright (C) 2017 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.
-->
<inset xmlns:android="http://schemas.android.com/apk/res/android">
<shape android:shape="rectangle">
<corners android:radius="2dp" />
<solid android:color="?android:attr/colorBackground" />
</shape>
</inset>

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android/frameworks/base/packages/CompanionDeviceManager/res/layout/buttons.xml Normal file
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<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright (C) 2017 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.
-->
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/buttons"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:layout_alignParentBottom="true"
android:layout_alignParentEnd="true"
android:gravity="end"
>
<Button
android:id="@+id/button_cancel"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@android:string/cancel"
style="@android:style/Widget.Material.Light.Button.Borderless.Colored"
/>
<Button
android:id="@+id/button_pair"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@android:string/ok"
style="@android:style/Widget.Material.Light.Button.Borderless.Colored"
/>
</LinearLayout>

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android/frameworks/base/packages/CompanionDeviceManager/res/layout/device_chooser.xml Normal file
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<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright (C) 2017 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.
-->
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/container"
android:layout_height="400dp"
style="@style/ContainerLayout"
>
<include layout="@layout/title" />
<ListView
android:id="@+id/device_list"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_below="@+id/title"
android:layout_above="@+id/buttons"
style="@android:style/Widget.Material.Light.ListView"
/>
<include layout="@layout/buttons" />
</RelativeLayout>

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android/frameworks/base/packages/CompanionDeviceManager/res/layout/device_confirmation.xml Normal file
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<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright (C) 2017 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.
-->
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/container"
android:layout_height="wrap_content"
style="@style/ContainerLayout"
>
<include layout="@layout/title" />
<include layout="@layout/buttons" />
</LinearLayout>

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<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright (C) 2017 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.
-->
<TextView
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/title"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textColor="@android:color/black"
style="@*android:style/TextAppearance.Widget.Toolbar.Title"
/>

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<?xml version="1.0" encoding="utf-8"?>
<resources>
<!-- Padding applied on most UI elements -->
<dimen name="padding">12dp</dimen>
</resources>

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android/frameworks/base/packages/CompanionDeviceManager/res/values/strings.xml Normal file
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<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright (C) 2017 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.
-->
<resources xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
<!-- Title of the CompanionDeviceManager application. [CHAR LIMIT=50] -->
<string name="app_label">Companion Device Manager</string>
<!-- Title of the device selection dialog. -->
<string name="chooser_title">Link with &lt;strong&gt;<xliff:g id="app_name" example="Android Wear">%1$s</xliff:g>&lt;/strong&gt;</string>
<!-- Title of the device pairing confirmation dialog. -->
<string name="confirmation_title">Link &lt;strong&gt;<xliff:g id="app_name" example="Android Wear">%1$s</xliff:g>&lt;/strong&gt; with &lt;strong&gt;<xliff:g id="device_name" example="ASUS ZenWatch 2">%2$s</xliff:g>&lt;/strong&gt;</string>
</resources>

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android/frameworks/base/packages/CompanionDeviceManager/res/values/styles.xml Normal file
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<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright (C) 2017 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.
-->
<resources>
<style name="ContainerLayout">
<item name="android:orientation">vertical</item>
<item name="android:layout_width">match_parent</item>
<item name="android:elevation">16dp</item>
<item name="android:background">@drawable/dialog_background</item>
<item name="android:paddingTop">18dip</item>
<item name="android:paddingStart">20dip</item>
<item name="android:paddingEnd">16dip</item>
<item name="android:paddingBottom">16dip</item>
<item name="android:layout_gravity">center</item>
</style>
</resources>

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android/frameworks/base/packages/CompanionDeviceManager/res/values/themes.xml Normal file
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<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright (C) 2017 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.
-->
<resources>
<style name="ChooserActivity"
parent="@android:style/Theme.DeviceDefault.Light.Dialog.NoActionBar">
<item name="*android:windowFixedHeightMajor">100%</item>
<item name="*android:windowFixedHeightMinor">100%</item>
<item name="android:windowBackground">@android:color/transparent</item>
</style>
</resources>

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android/frameworks/base/packages/CompanionDeviceManager/src/com/android/companiondevicemanager/DeviceChooserActivity.java Normal file
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/*
* Copyright (C) 2017 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.companiondevicemanager;
import static android.companion.BluetoothDeviceFilterUtils.getDeviceMacAddress;
import android.app.Activity;
import android.companion.CompanionDeviceManager;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.content.res.Resources;
import android.database.DataSetObserver;
import android.os.Bundle;
import android.text.Html;
import android.util.Log;
import android.view.Gravity;
import android.view.View;
import android.widget.ListView;
import android.widget.ProgressBar;
import android.widget.TextView;
import com.android.companiondevicemanager.DeviceDiscoveryService.DeviceFilterPair;
import com.android.internal.util.Preconditions;
public class DeviceChooserActivity extends Activity {
private static final boolean DEBUG = false;
private static final String LOG_TAG = "DeviceChooserActivity";
private ListView mDeviceListView;
private View mPairButton;
private View mCancelButton;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (DEBUG) Log.i(LOG_TAG, "Started with intent " + getIntent());
if (getService().mDevicesFound.isEmpty()) {
Log.e(LOG_TAG, "About to show UI, but no devices to show");
}
if (getService().mRequest.isSingleDevice()) {
setContentView(R.layout.device_confirmation);
final DeviceFilterPair selectedDevice = getService().mDevicesFound.get(0);
setTitle(Html.fromHtml(getString(
R.string.confirmation_title,
getCallingAppName(),
selectedDevice.getDisplayName()), 0));
mPairButton = findViewById(R.id.button_pair);
mPairButton.setOnClickListener(v -> onDeviceConfirmed(getService().mSelectedDevice));
getService().mSelectedDevice = selectedDevice;
onSelectionUpdate();
} else {
setContentView(R.layout.device_chooser);
mPairButton = findViewById(R.id.button_pair);
mPairButton.setVisibility(View.GONE);
setTitle(Html.fromHtml(getString(R.string.chooser_title, getCallingAppName()), 0));
mDeviceListView = findViewById(R.id.device_list);
final DeviceDiscoveryService.DevicesAdapter adapter = getService().mDevicesAdapter;
mDeviceListView.setAdapter(adapter);
adapter.registerDataSetObserver(new DataSetObserver() {
@Override
public void onChanged() {
onSelectionUpdate();
}
});
mDeviceListView.addFooterView(getProgressBar(), null, false);
}
mCancelButton = findViewById(R.id.button_cancel);
mCancelButton.setOnClickListener(v -> cancel());
}
private void cancel() {
getService().onCancel();
setResult(RESULT_CANCELED);
finish();
}
@Override
protected void onStop() {
super.onStop();
if (!isFinishing() && !isChangingConfigurations()) {
cancel();
}
}
private CharSequence getCallingAppName() {
try {
final PackageManager packageManager = getPackageManager();
String callingPackage = Preconditions.checkStringNotEmpty(
getCallingPackage(),
"This activity must be called for result");
return packageManager.getApplicationLabel(
packageManager.getApplicationInfo(callingPackage, 0));
} catch (PackageManager.NameNotFoundException e) {
throw new RuntimeException(e);
}
}
@Override
public void setTitle(CharSequence title) {
final TextView titleView = findViewById(R.id.title);
final int padding = getPadding(getResources());
titleView.setPadding(padding, padding, padding, padding);
titleView.setText(title);
}
//TODO put in resources xmls
private ProgressBar getProgressBar() {
final ProgressBar progressBar = new ProgressBar(this);
progressBar.setForegroundGravity(Gravity.CENTER_HORIZONTAL);
final int padding = getPadding(getResources());
progressBar.setPadding(padding, padding, padding, padding);
return progressBar;
}
static int getPadding(Resources r) {
return r.getDimensionPixelSize(R.dimen.padding);
}
private void onSelectionUpdate() {
DeviceFilterPair selectedDevice = getService().mSelectedDevice;
if (mPairButton.getVisibility() != View.VISIBLE && selectedDevice != null) {
onDeviceConfirmed(selectedDevice);
} else {
mPairButton.setEnabled(selectedDevice != null);
}
}
private DeviceDiscoveryService getService() {
return DeviceDiscoveryService.sInstance;
}
protected void onDeviceConfirmed(DeviceFilterPair selectedDevice) {
getService().onDeviceSelected(
getCallingPackage(), getDeviceMacAddress(selectedDevice.device));
setResult(RESULT_OK,
new Intent().putExtra(CompanionDeviceManager.EXTRA_DEVICE, selectedDevice.device));
finish();
}
}

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android/frameworks/base/packages/CompanionDeviceManager/src/com/android/companiondevicemanager/DeviceDiscoveryService.java Normal file
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/*
* Copyright (C) 2013 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.companiondevicemanager;
import static android.companion.BluetoothDeviceFilterUtils.getDeviceDisplayNameInternal;
import static android.companion.BluetoothDeviceFilterUtils.getDeviceMacAddress;
import static com.android.internal.util.ArrayUtils.isEmpty;
import static com.android.internal.util.CollectionUtils.emptyIfNull;
import static com.android.internal.util.CollectionUtils.size;
import android.annotation.NonNull;
import android.annotation.Nullable;
import android.app.PendingIntent;
import android.app.Service;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothManager;
import android.bluetooth.le.BluetoothLeScanner;
import android.bluetooth.le.ScanCallback;
import android.bluetooth.le.ScanFilter;
import android.bluetooth.le.ScanResult;
import android.bluetooth.le.ScanSettings;
import android.companion.AssociationRequest;
import android.companion.BluetoothDeviceFilter;
import android.companion.BluetoothLeDeviceFilter;
import android.companion.DeviceFilter;
import android.companion.ICompanionDeviceDiscoveryService;
import android.companion.ICompanionDeviceDiscoveryServiceCallback;
import android.companion.IFindDeviceCallback;
import android.companion.WifiDeviceFilter;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.graphics.Color;
import android.graphics.drawable.Drawable;
import android.net.wifi.WifiManager;
import android.os.IBinder;
import android.os.Parcelable;
import android.os.RemoteException;
import android.text.TextUtils;
import android.util.Log;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.TextView;
import com.android.internal.util.ArrayUtils;
import com.android.internal.util.CollectionUtils;
import com.android.internal.util.Preconditions;
import java.util.ArrayList;
import java.util.List;
import java.util.Objects;
public class DeviceDiscoveryService extends Service {
private static final boolean DEBUG = false;
private static final String LOG_TAG = "DeviceDiscoveryService";
static DeviceDiscoveryService sInstance;
private BluetoothAdapter mBluetoothAdapter;
private WifiManager mWifiManager;
@Nullable private BluetoothLeScanner mBLEScanner;
private ScanSettings mDefaultScanSettings = new ScanSettings.Builder().build();
private List<DeviceFilter<?>> mFilters;
private List<BluetoothLeDeviceFilter> mBLEFilters;
private List<BluetoothDeviceFilter> mBluetoothFilters;
private List<WifiDeviceFilter> mWifiFilters;
private List<ScanFilter> mBLEScanFilters;
AssociationRequest mRequest;
List<DeviceFilterPair> mDevicesFound;
DeviceFilterPair mSelectedDevice;
DevicesAdapter mDevicesAdapter;
IFindDeviceCallback mFindCallback;
ICompanionDeviceDiscoveryServiceCallback mServiceCallback;
private final ICompanionDeviceDiscoveryService mBinder =
new ICompanionDeviceDiscoveryService.Stub() {
@Override
public void startDiscovery(AssociationRequest request,
String callingPackage,
IFindDeviceCallback findCallback,
ICompanionDeviceDiscoveryServiceCallback serviceCallback) {
if (DEBUG) {
Log.i(LOG_TAG,
"startDiscovery() called with: filter = [" + request
+ "], findCallback = [" + findCallback + "]"
+ "], serviceCallback = [" + serviceCallback + "]");
}
mFindCallback = findCallback;
mServiceCallback = serviceCallback;
DeviceDiscoveryService.this.startDiscovery(request);
}
};
private ScanCallback mBLEScanCallback;
private BluetoothBroadcastReceiver mBluetoothBroadcastReceiver;
private WifiBroadcastReceiver mWifiBroadcastReceiver;
@Override
public IBinder onBind(Intent intent) {
if (DEBUG) Log.i(LOG_TAG, "onBind(" + intent + ")");
return mBinder.asBinder();
}
@Override
public void onCreate() {
super.onCreate();
if (DEBUG) Log.i(LOG_TAG, "onCreate()");
mBluetoothAdapter = getSystemService(BluetoothManager.class).getAdapter();
mBLEScanner = mBluetoothAdapter.getBluetoothLeScanner();
mWifiManager = getSystemService(WifiManager.class);
mDevicesFound = new ArrayList<>();
mDevicesAdapter = new DevicesAdapter();
sInstance = this;
}
private void startDiscovery(AssociationRequest request) {
if (!request.equals(mRequest)) {
mRequest = request;
mFilters = request.getDeviceFilters();
mWifiFilters = CollectionUtils.filter(mFilters, WifiDeviceFilter.class);
mBluetoothFilters = CollectionUtils.filter(mFilters, BluetoothDeviceFilter.class);
mBLEFilters = CollectionUtils.filter(mFilters, BluetoothLeDeviceFilter.class);
mBLEScanFilters = CollectionUtils.map(mBLEFilters, BluetoothLeDeviceFilter::getScanFilter);
reset();
} else if (DEBUG) Log.i(LOG_TAG, "startDiscovery: duplicate request: " + request);
if (!ArrayUtils.isEmpty(mDevicesFound)) {
onReadyToShowUI();
}
// If filtering to get single device by mac address, also search in the set of already
// bonded devices to allow linking those directly
String singleMacAddressFilter = null;
if (mRequest.isSingleDevice()) {
int numFilters = size(mBluetoothFilters);
for (int i = 0; i < numFilters; i++) {
BluetoothDeviceFilter filter = mBluetoothFilters.get(i);
if (!TextUtils.isEmpty(filter.getAddress())) {
singleMacAddressFilter = filter.getAddress();
break;
}
}
}
if (singleMacAddressFilter != null) {
for (BluetoothDevice dev : emptyIfNull(mBluetoothAdapter.getBondedDevices())) {
onDeviceFound(DeviceFilterPair.findMatch(dev, mBluetoothFilters));
}
}
if (shouldScan(mBluetoothFilters)) {
final IntentFilter intentFilter = new IntentFilter();
intentFilter.addAction(BluetoothDevice.ACTION_FOUND);
intentFilter.addAction(BluetoothDevice.ACTION_DISAPPEARED);
mBluetoothBroadcastReceiver = new BluetoothBroadcastReceiver();
registerReceiver(mBluetoothBroadcastReceiver, intentFilter);
mBluetoothAdapter.startDiscovery();
}
if (shouldScan(mBLEFilters) && mBLEScanner != null) {
mBLEScanCallback = new BLEScanCallback();
mBLEScanner.startScan(mBLEScanFilters, mDefaultScanSettings, mBLEScanCallback);
}
if (shouldScan(mWifiFilters)) {
mWifiBroadcastReceiver = new WifiBroadcastReceiver();
registerReceiver(mWifiBroadcastReceiver,
new IntentFilter(WifiManager.SCAN_RESULTS_AVAILABLE_ACTION));
mWifiManager.startScan();
}
}
private boolean shouldScan(List<? extends DeviceFilter> mediumSpecificFilters) {
return !isEmpty(mediumSpecificFilters) || isEmpty(mFilters);
}
private void reset() {
if (DEBUG) Log.i(LOG_TAG, "reset()");
stopScan();
mDevicesFound.clear();
mSelectedDevice = null;
mDevicesAdapter.notifyDataSetChanged();
}
@Override
public boolean onUnbind(Intent intent) {
stopScan();
return super.onUnbind(intent);
}
private void stopScan() {
if (DEBUG) Log.i(LOG_TAG, "stopScan()");
mBluetoothAdapter.cancelDiscovery();
if (mBluetoothBroadcastReceiver != null) {
unregisterReceiver(mBluetoothBroadcastReceiver);
mBluetoothBroadcastReceiver = null;
}
if (mBLEScanner != null) mBLEScanner.stopScan(mBLEScanCallback);
if (mWifiBroadcastReceiver != null) {
unregisterReceiver(mWifiBroadcastReceiver);
mWifiBroadcastReceiver = null;
}
}
private void onDeviceFound(@Nullable DeviceFilterPair device) {
if (device == null) return;
if (mDevicesFound.contains(device)) {
return;
}
if (DEBUG) Log.i(LOG_TAG, "Found device " + device);
if (mDevicesFound.isEmpty()) {
onReadyToShowUI();
}
mDevicesFound.add(device);
mDevicesAdapter.notifyDataSetChanged();
}
//TODO also, on timeout -> call onFailure
private void onReadyToShowUI() {
try {
mFindCallback.onSuccess(PendingIntent.getActivity(
this, 0,
new Intent(this, DeviceChooserActivity.class),
PendingIntent.FLAG_ONE_SHOT | PendingIntent.FLAG_CANCEL_CURRENT
| PendingIntent.FLAG_IMMUTABLE));
} catch (RemoteException e) {
throw new RuntimeException(e);
}
}
private void onDeviceLost(@Nullable DeviceFilterPair device) {
mDevicesFound.remove(device);
mDevicesAdapter.notifyDataSetChanged();
if (DEBUG) Log.i(LOG_TAG, "Lost device " + device.getDisplayName());
}
void onDeviceSelected(String callingPackage, String deviceAddress) {
try {
mServiceCallback.onDeviceSelected(
//TODO is this the right userId?
callingPackage, getUserId(), deviceAddress);
} catch (RemoteException e) {
Log.e(LOG_TAG, "Failed to record association: "
+ callingPackage + " <-> " + deviceAddress);
}
}
void onCancel() {
if (DEBUG) Log.i(LOG_TAG, "onCancel()");
try {
mServiceCallback.onDeviceSelectionCancel();
} catch (RemoteException e) {
throw new RuntimeException(e);
}
}
class DevicesAdapter extends ArrayAdapter<DeviceFilterPair> {
private Drawable BLUETOOTH_ICON = icon(android.R.drawable.stat_sys_data_bluetooth);
private Drawable WIFI_ICON = icon(com.android.internal.R.drawable.ic_wifi_signal_3);
private Drawable icon(int drawableRes) {
Drawable icon = getResources().getDrawable(drawableRes, null);
icon.setTint(Color.DKGRAY);
return icon;
}
public DevicesAdapter() {
super(DeviceDiscoveryService.this, 0, mDevicesFound);
}
@Override
public View getView(
int position,
@Nullable View convertView,
@NonNull ViewGroup parent) {
TextView view = convertView instanceof TextView
? (TextView) convertView
: newView();
bind(view, getItem(position));
return view;
}
private void bind(TextView textView, DeviceFilterPair device) {
textView.setText(device.getDisplayName());
textView.setBackgroundColor(
device.equals(mSelectedDevice)
? Color.GRAY
: Color.TRANSPARENT);
textView.setCompoundDrawablesWithIntrinsicBounds(
device.device instanceof android.net.wifi.ScanResult
? WIFI_ICON
: BLUETOOTH_ICON,
null, null, null);
textView.setOnClickListener((view) -> {
mSelectedDevice = device;
notifyDataSetChanged();
});
}
//TODO move to a layout file
private TextView newView() {
final TextView textView = new TextView(DeviceDiscoveryService.this);
textView.setTextColor(Color.BLACK);
final int padding = DeviceChooserActivity.getPadding(getResources());
textView.setPadding(padding, padding, padding, padding);
textView.setCompoundDrawablePadding(padding);
return textView;
}
}
/**
* A pair of device and a filter that matched this device if any.
*
* @param <T> device type
*/
static class DeviceFilterPair<T extends Parcelable> {
public final T device;
@Nullable
public final DeviceFilter<T> filter;
private DeviceFilterPair(T device, @Nullable DeviceFilter<T> filter) {
this.device = device;
this.filter = filter;
}
/**
* {@code (device, null)} if the filters list is empty or null
* {@code null} if none of the provided filters match the device
* {@code (device, filter)} where filter is among the list of filters and matches the device
*/
@Nullable
public static <T extends Parcelable> DeviceFilterPair<T> findMatch(
T dev, @Nullable List<? extends DeviceFilter<T>> filters) {
if (isEmpty(filters)) return new DeviceFilterPair<>(dev, null);
final DeviceFilter<T> matchingFilter
= CollectionUtils.find(filters, f -> f.matches(dev));
DeviceFilterPair<T> result = matchingFilter != null
? new DeviceFilterPair<>(dev, matchingFilter)
: null;
if (DEBUG) Log.i(LOG_TAG, "findMatch(dev = " + dev + ", filters = " + filters +
") -> " + result);
return result;
}
public String getDisplayName() {
if (filter == null) {
Preconditions.checkNotNull(device);
if (device instanceof BluetoothDevice) {
return getDeviceDisplayNameInternal((BluetoothDevice) device);
} else if (device instanceof android.net.wifi.ScanResult) {
return getDeviceDisplayNameInternal((android.net.wifi.ScanResult) device);
} else if (device instanceof ScanResult) {
return getDeviceDisplayNameInternal(((ScanResult) device).getDevice());
} else {
throw new IllegalArgumentException("Unknown device type: " + device.getClass());
}
}
return filter.getDeviceDisplayName(device);
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
DeviceFilterPair<?> that = (DeviceFilterPair<?>) o;
return Objects.equals(getDeviceMacAddress(device), getDeviceMacAddress(that.device));
}
@Override
public int hashCode() {
return Objects.hash(getDeviceMacAddress(device));
}
@Override
public String toString() {
return "DeviceFilterPair{" +
"device=" + device +
", filter=" + filter +
'}';
}
}
private class BLEScanCallback extends ScanCallback {
public BLEScanCallback() {
if (DEBUG) Log.i(LOG_TAG, "new BLEScanCallback() -> " + this);
}
@Override
public void onScanResult(int callbackType, ScanResult result) {
if (DEBUG) {
Log.i(LOG_TAG,
"BLE.onScanResult(callbackType = " + callbackType + ", result = " + result
+ ")");
}
final DeviceFilterPair<ScanResult> deviceFilterPair
= DeviceFilterPair.findMatch(result, mBLEFilters);
if (deviceFilterPair == null) return;
if (callbackType == ScanSettings.CALLBACK_TYPE_MATCH_LOST) {
onDeviceLost(deviceFilterPair);
} else {
onDeviceFound(deviceFilterPair);
}
}
}
private class BluetoothBroadcastReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
if (DEBUG) {
Log.i(LOG_TAG,
"BL.onReceive(context = " + context + ", intent = " + intent + ")");
}
final BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
final DeviceFilterPair<BluetoothDevice> deviceFilterPair
= DeviceFilterPair.findMatch(device, mBluetoothFilters);
if (deviceFilterPair == null) return;
if (intent.getAction().equals(BluetoothDevice.ACTION_FOUND)) {
onDeviceFound(deviceFilterPair);
} else {
onDeviceLost(deviceFilterPair);
}
}
}
private class WifiBroadcastReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
if (intent.getAction().equals(WifiManager.SCAN_RESULTS_AVAILABLE_ACTION)) {
List<android.net.wifi.ScanResult> scanResults = mWifiManager.getScanResults();
if (DEBUG) {
Log.i(LOG_TAG, "Wifi scan results: " + TextUtils.join("\n", scanResults));
}
for (int i = 0; i < scanResults.size(); i++) {
onDeviceFound(DeviceFilterPair.findMatch(scanResults.get(i), mWifiFilters));
}
}
}
}
}