611 lines
22 KiB
Java
611 lines
22 KiB
Java
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/*
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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 android.bluetooth;
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import static android.annotation.SystemApi.Client.MODULE_LIBRARIES;
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import android.annotation.IntDef;
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import android.annotation.NonNull;
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import android.annotation.Nullable;
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import android.annotation.RequiresPermission;
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import android.annotation.SdkConstant;
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import android.annotation.SdkConstant.SdkConstantType;
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import android.annotation.SuppressLint;
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import android.annotation.SystemApi;
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import android.bluetooth.annotations.RequiresBluetoothConnectPermission;
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import android.bluetooth.annotations.RequiresLegacyBluetoothPermission;
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import android.compat.annotation.UnsupportedAppUsage;
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import android.content.AttributionSource;
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import android.content.Context;
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import android.net.TetheringManager.TetheredInterfaceCallback;
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import android.net.TetheringManager.TetheredInterfaceRequest;
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import android.os.Build;
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import android.os.IBinder;
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import android.os.RemoteException;
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import android.util.Log;
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import java.lang.annotation.Retention;
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import java.lang.annotation.RetentionPolicy;
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import java.util.Collections;
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import java.util.List;
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import java.util.Objects;
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import java.util.concurrent.Executor;
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/**
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* This class provides the APIs to control the Bluetooth Pan Profile.
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*
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* <p>BluetoothPan is a proxy object for controlling the Bluetooth Service via IPC. Use {@link
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* BluetoothAdapter#getProfileProxy} to get the BluetoothPan proxy object.
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*
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* <p>Each method is protected with its appropriate permission.
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*
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* @hide
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*/
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@SystemApi
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public final class BluetoothPan implements BluetoothProfile {
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private static final String TAG = "BluetoothPan";
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private static final boolean DBG = true;
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private static final boolean VDBG = false;
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/**
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* Intent used to broadcast the change in connection state of the Pan profile.
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*
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* <p>This intent will have 4 extras:
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*
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* <ul>
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* <li>{@link #EXTRA_STATE} - The current state of the profile.
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* <li>{@link #EXTRA_PREVIOUS_STATE}- The previous state of the profile.
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* <li>{@link BluetoothDevice#EXTRA_DEVICE} - The remote device.
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* <li>{@link #EXTRA_LOCAL_ROLE} - Which local role the remote device is bound to.
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* </ul>
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*
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* <p>{@link #EXTRA_STATE} or {@link #EXTRA_PREVIOUS_STATE} can be any of {@link
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* #STATE_DISCONNECTED}, {@link #STATE_CONNECTING}, {@link #STATE_CONNECTED}, {@link
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* #STATE_DISCONNECTING}.
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*
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* <p>{@link #EXTRA_LOCAL_ROLE} can be one of {@link #LOCAL_NAP_ROLE} or {@link
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* #LOCAL_PANU_ROLE}
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*/
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@SuppressLint("ActionValue")
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@RequiresLegacyBluetoothPermission
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@RequiresBluetoothConnectPermission
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@RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT)
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@SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
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public static final String ACTION_CONNECTION_STATE_CHANGED =
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"android.bluetooth.pan.profile.action.CONNECTION_STATE_CHANGED";
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/**
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* Extra for {@link #ACTION_CONNECTION_STATE_CHANGED} intent The local role of the PAN profile
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* that the remote device is bound to. It can be one of {@link #LOCAL_NAP_ROLE} or {@link
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* #LOCAL_PANU_ROLE}.
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*/
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@SuppressLint("ActionValue")
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public static final String EXTRA_LOCAL_ROLE = "android.bluetooth.pan.extra.LOCAL_ROLE";
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/**
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* Intent used to broadcast the change in tethering state of the Pan Profile
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*
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* <p>This intent will have 1 extra:
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*
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* <ul>
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* <li>{@link #EXTRA_TETHERING_STATE} - The current state of Bluetooth tethering.
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* </ul>
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*
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* <p>{@link #EXTRA_TETHERING_STATE} can be any of {@link #TETHERING_STATE_OFF} or {@link
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* #TETHERING_STATE_ON}
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*/
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@RequiresLegacyBluetoothPermission
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@SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
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public static final String ACTION_TETHERING_STATE_CHANGED =
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"android.bluetooth.action.TETHERING_STATE_CHANGED";
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/**
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* Extra for {@link #ACTION_TETHERING_STATE_CHANGED} intent The tethering state of the PAN
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* profile. It can be one of {@link #TETHERING_STATE_OFF} or {@link #TETHERING_STATE_ON}.
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*/
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public static final String EXTRA_TETHERING_STATE = "android.bluetooth.extra.TETHERING_STATE";
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/** @hide */
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@IntDef({PAN_ROLE_NONE, LOCAL_NAP_ROLE, LOCAL_PANU_ROLE})
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@Retention(RetentionPolicy.SOURCE)
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public @interface LocalPanRole {}
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public static final int PAN_ROLE_NONE = 0;
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/** The local device is acting as a Network Access Point. */
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public static final int LOCAL_NAP_ROLE = 1;
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/** The local device is acting as a PAN User. */
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public static final int LOCAL_PANU_ROLE = 2;
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/** @hide */
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@IntDef({PAN_ROLE_NONE, REMOTE_NAP_ROLE, REMOTE_PANU_ROLE})
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@Retention(RetentionPolicy.SOURCE)
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public @interface RemotePanRole {}
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public static final int REMOTE_NAP_ROLE = 1;
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public static final int REMOTE_PANU_ROLE = 2;
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/**
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* @hide *
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*/
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@IntDef({TETHERING_STATE_OFF, TETHERING_STATE_ON})
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@Retention(RetentionPolicy.SOURCE)
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public @interface TetheringState {}
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public static final int TETHERING_STATE_OFF = 1;
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public static final int TETHERING_STATE_ON = 2;
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/**
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* Return codes for the connect and disconnect Bluez / Dbus calls.
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*
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* @hide
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*/
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public static final int PAN_DISCONNECT_FAILED_NOT_CONNECTED = 1000;
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/** @hide */
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public static final int PAN_CONNECT_FAILED_ALREADY_CONNECTED = 1001;
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/** @hide */
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public static final int PAN_CONNECT_FAILED_ATTEMPT_FAILED = 1002;
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/** @hide */
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public static final int PAN_OPERATION_GENERIC_FAILURE = 1003;
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/** @hide */
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public static final int PAN_OPERATION_SUCCESS = 1004;
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/**
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* Request class used by Tethering to notify that the interface is closed.
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*
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* @see #requestTetheredInterface
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* @hide
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*/
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public class BluetoothTetheredInterfaceRequest implements TetheredInterfaceRequest {
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private IBluetoothPan mService;
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private final IBluetoothPanCallback mPanCallback;
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private final int mId;
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private BluetoothTetheredInterfaceRequest(
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@NonNull IBluetoothPan service,
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@NonNull IBluetoothPanCallback panCallback,
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int id) {
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this.mService = service;
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this.mPanCallback = panCallback;
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this.mId = id;
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}
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/** Called when the Tethering interface has been released. */
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@RequiresPermission(
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allOf = {
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android.Manifest.permission.BLUETOOTH_CONNECT,
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android.Manifest.permission.BLUETOOTH_PRIVILEGED,
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android.Manifest.permission.TETHER_PRIVILEGED,
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})
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@Override
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public void release() {
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if (mService == null) {
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throw new IllegalStateException(
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"The tethered interface has already been released.");
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}
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try {
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mService.setBluetoothTethering(mPanCallback, mId, false, mAttributionSource);
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} catch (RemoteException e) {
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Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable()));
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} finally {
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mService = null;
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}
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}
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}
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private final Context mContext;
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private final BluetoothAdapter mAdapter;
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private final AttributionSource mAttributionSource;
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private IBluetoothPan mService;
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/**
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* Create a BluetoothPan proxy object for interacting with the local Bluetooth Service which
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* handles the Pan profile
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*
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* @hide
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*/
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@UnsupportedAppUsage
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/* package */ BluetoothPan(Context context, BluetoothAdapter adapter) {
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mAdapter = adapter;
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mAttributionSource = adapter.getAttributionSource();
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mContext = context;
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mService = null;
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}
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/**
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* Closes the connection to the service and unregisters callbacks
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*
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* @hide
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*/
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@UnsupportedAppUsage
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public void close() {
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if (VDBG) log("close()");
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mAdapter.closeProfileProxy(this);
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}
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/** @hide */
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@Override
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public void onServiceConnected(IBinder service) {
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mService = IBluetoothPan.Stub.asInterface(service);
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}
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/** @hide */
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@Override
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public void onServiceDisconnected() {
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mService = null;
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}
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private IBluetoothPan getService() {
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return mService;
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}
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/** @hide */
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@Override
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public BluetoothAdapter getAdapter() {
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return mAdapter;
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}
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/** @hide */
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@SuppressWarnings("Finalize") // TODO(b/314811467)
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protected void finalize() {
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close();
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}
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/**
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* Initiate connection to a profile of the remote bluetooth device.
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*
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* <p>This API returns false in scenarios like the profile on the device is already connected or
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* Bluetooth is not turned on. When this API returns true, it is guaranteed that connection
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* state intent for the profile will be broadcasted with the state. Users can get the connection
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* state of the profile from this intent.
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*
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* @param device Remote Bluetooth Device
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* @return false on immediate error, true otherwise
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* @hide
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*/
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@UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.R, trackingBug = 170729553)
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@RequiresBluetoothConnectPermission
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@RequiresPermission(
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allOf = {
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android.Manifest.permission.BLUETOOTH_CONNECT,
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android.Manifest.permission.BLUETOOTH_PRIVILEGED,
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})
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public boolean connect(BluetoothDevice device) {
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if (DBG) log("connect(" + device + ")");
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final IBluetoothPan service = getService();
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if (service == null) {
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Log.w(TAG, "Proxy not attached to service");
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if (DBG) log(Log.getStackTraceString(new Throwable()));
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} else if (isEnabled() && isValidDevice(device)) {
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try {
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return service.connect(device, mAttributionSource);
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} catch (RemoteException e) {
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Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable()));
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}
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}
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return false;
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}
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/**
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* Initiate disconnection from a profile
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*
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* <p>This API will return false in scenarios like the profile on the Bluetooth device is not in
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* connected state etc. When this API returns, true, it is guaranteed that the connection state
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* change intent will be broadcasted with the state. Users can get the disconnection state of
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* the profile from this intent.
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*
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* <p>If the disconnection is initiated by a remote device, the state will transition from
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* {@link #STATE_CONNECTED} to {@link #STATE_DISCONNECTED}. If the disconnect is initiated by
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* the host (local) device the state will transition from {@link #STATE_CONNECTED} to state
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* {@link #STATE_DISCONNECTING} to state {@link #STATE_DISCONNECTED}. The transition to {@link
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* #STATE_DISCONNECTING} can be used to distinguish between the two scenarios.
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*
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* @param device Remote Bluetooth Device
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* @return false on immediate error, true otherwise
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* @hide
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*/
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@UnsupportedAppUsage
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@RequiresBluetoothConnectPermission
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@RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT)
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public boolean disconnect(BluetoothDevice device) {
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if (DBG) log("disconnect(" + device + ")");
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final IBluetoothPan service = getService();
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if (service == null) {
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Log.w(TAG, "Proxy not attached to service");
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if (DBG) log(Log.getStackTraceString(new Throwable()));
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} else if (isEnabled() && isValidDevice(device)) {
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try {
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return service.disconnect(device, mAttributionSource);
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} catch (RemoteException e) {
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Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable()));
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}
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}
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return false;
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}
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/**
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* Set connection policy of the profile
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*
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* <p>The device should already be paired. Connection policy can be one of {@link
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* #CONNECTION_POLICY_ALLOWED}, {@link #CONNECTION_POLICY_FORBIDDEN}, {@link
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* #CONNECTION_POLICY_UNKNOWN}
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*
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* @param device Paired bluetooth device
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* @param connectionPolicy is the connection policy to set to for this profile
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* @return true if connectionPolicy is set, false on error
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* @hide
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*/
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@SystemApi
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@RequiresBluetoothConnectPermission
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@RequiresPermission(
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allOf = {
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android.Manifest.permission.BLUETOOTH_CONNECT,
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android.Manifest.permission.BLUETOOTH_PRIVILEGED,
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})
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|
public boolean setConnectionPolicy(
|
||
|
|
@NonNull BluetoothDevice device, @ConnectionPolicy int connectionPolicy) {
|
||
|
|
if (DBG) log("setConnectionPolicy(" + device + ", " + connectionPolicy + ")");
|
||
|
|
final IBluetoothPan service = getService();
|
||
|
|
if (service == null) {
|
||
|
|
Log.w(TAG, "Proxy not attached to service");
|
||
|
|
if (DBG) log(Log.getStackTraceString(new Throwable()));
|
||
|
|
} else if (isEnabled()
|
||
|
|
&& isValidDevice(device)
|
||
|
|
&& (connectionPolicy == BluetoothProfile.CONNECTION_POLICY_FORBIDDEN
|
||
|
|
|| connectionPolicy == BluetoothProfile.CONNECTION_POLICY_ALLOWED)) {
|
||
|
|
try {
|
||
|
|
return service.setConnectionPolicy(device, connectionPolicy, mAttributionSource);
|
||
|
|
} catch (RemoteException e) {
|
||
|
|
Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable()));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* {@inheritDoc}
|
||
|
|
*
|
||
|
|
* @hide
|
||
|
|
*/
|
||
|
|
@SystemApi
|
||
|
|
@Override
|
||
|
|
@RequiresBluetoothConnectPermission
|
||
|
|
@RequiresPermission(
|
||
|
|
allOf = {
|
||
|
|
android.Manifest.permission.BLUETOOTH_CONNECT,
|
||
|
|
android.Manifest.permission.BLUETOOTH_PRIVILEGED,
|
||
|
|
})
|
||
|
|
public @NonNull List<BluetoothDevice> getConnectedDevices() {
|
||
|
|
if (VDBG) log("getConnectedDevices()");
|
||
|
|
final IBluetoothPan service = getService();
|
||
|
|
if (service == null) {
|
||
|
|
Log.w(TAG, "Proxy not attached to service");
|
||
|
|
if (DBG) log(Log.getStackTraceString(new Throwable()));
|
||
|
|
} else if (isEnabled()) {
|
||
|
|
try {
|
||
|
|
return Attributable.setAttributionSource(
|
||
|
|
service.getConnectedDevices(mAttributionSource), mAttributionSource);
|
||
|
|
} catch (RemoteException e) {
|
||
|
|
Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable()));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return Collections.emptyList();
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* {@inheritDoc}
|
||
|
|
*
|
||
|
|
* @hide
|
||
|
|
*/
|
||
|
|
@Override
|
||
|
|
@RequiresLegacyBluetoothPermission
|
||
|
|
@RequiresBluetoothConnectPermission
|
||
|
|
@RequiresPermission(
|
||
|
|
allOf = {
|
||
|
|
android.Manifest.permission.BLUETOOTH_CONNECT,
|
||
|
|
android.Manifest.permission.BLUETOOTH_PRIVILEGED,
|
||
|
|
})
|
||
|
|
public List<BluetoothDevice> getDevicesMatchingConnectionStates(int[] states) {
|
||
|
|
if (VDBG) log("getDevicesMatchingStates()");
|
||
|
|
final IBluetoothPan service = getService();
|
||
|
|
if (service == null) {
|
||
|
|
Log.w(TAG, "Proxy not attached to service");
|
||
|
|
if (DBG) log(Log.getStackTraceString(new Throwable()));
|
||
|
|
} else if (isEnabled()) {
|
||
|
|
try {
|
||
|
|
return Attributable.setAttributionSource(
|
||
|
|
service.getDevicesMatchingConnectionStates(states, mAttributionSource),
|
||
|
|
mAttributionSource);
|
||
|
|
} catch (RemoteException e) {
|
||
|
|
Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable()));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return Collections.emptyList();
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* {@inheritDoc}
|
||
|
|
*
|
||
|
|
* @hide
|
||
|
|
*/
|
||
|
|
@SystemApi
|
||
|
|
@Override
|
||
|
|
@RequiresBluetoothConnectPermission
|
||
|
|
@RequiresPermission(
|
||
|
|
allOf = {
|
||
|
|
android.Manifest.permission.BLUETOOTH_CONNECT,
|
||
|
|
android.Manifest.permission.BLUETOOTH_PRIVILEGED,
|
||
|
|
})
|
||
|
|
public int getConnectionState(@NonNull BluetoothDevice device) {
|
||
|
|
if (VDBG) log("getState(" + device + ")");
|
||
|
|
final IBluetoothPan service = getService();
|
||
|
|
if (service == null) {
|
||
|
|
Log.w(TAG, "Proxy not attached to service");
|
||
|
|
if (DBG) log(Log.getStackTraceString(new Throwable()));
|
||
|
|
} else if (isEnabled() && isValidDevice(device)) {
|
||
|
|
try {
|
||
|
|
return service.getConnectionState(device, mAttributionSource);
|
||
|
|
} catch (RemoteException e) {
|
||
|
|
Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable()));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return BluetoothProfile.STATE_DISCONNECTED;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Turns on/off bluetooth tethering.
|
||
|
|
*
|
||
|
|
* @param value is whether to enable or disable bluetooth tethering
|
||
|
|
* @deprecated Use {@link #requestTetheredInterface} with {@link TetheredInterfaceCallback}
|
||
|
|
* instead.
|
||
|
|
* @hide
|
||
|
|
*/
|
||
|
|
@SystemApi
|
||
|
|
@RequiresBluetoothConnectPermission
|
||
|
|
@RequiresPermission(
|
||
|
|
allOf = {
|
||
|
|
android.Manifest.permission.BLUETOOTH_CONNECT,
|
||
|
|
android.Manifest.permission.BLUETOOTH_PRIVILEGED,
|
||
|
|
android.Manifest.permission.TETHER_PRIVILEGED,
|
||
|
|
})
|
||
|
|
@Deprecated
|
||
|
|
public void setBluetoothTethering(boolean value) {
|
||
|
|
String pkgName = mContext.getOpPackageName();
|
||
|
|
if (DBG) log("setBluetoothTethering(" + value + "), calling package:" + pkgName);
|
||
|
|
final IBluetoothPan service = getService();
|
||
|
|
if (service == null) {
|
||
|
|
Log.w(TAG, "Proxy not attached to service");
|
||
|
|
if (DBG) log(Log.getStackTraceString(new Throwable()));
|
||
|
|
} else if (isEnabled()) {
|
||
|
|
try {
|
||
|
|
service.setBluetoothTethering(null, 0, value, mAttributionSource);
|
||
|
|
} catch (RemoteException e) {
|
||
|
|
Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable()));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Turns on Bluetooth tethering.
|
||
|
|
*
|
||
|
|
* <p>When one or more devices are connected, the PAN service will trigger {@link
|
||
|
|
* TetheredInterfaceCallback#onAvailable} to inform the caller that it is ready to tether. On
|
||
|
|
* the contrary, when all devices have been disconnected, the PAN service will trigger {@link
|
||
|
|
* TetheredInterfaceCallback#onUnavailable}.
|
||
|
|
*
|
||
|
|
* <p>To turn off Bluetooth tethering, the caller must use {@link
|
||
|
|
* TetheredInterfaceRequest#release} method.
|
||
|
|
*
|
||
|
|
* @param executor thread to execute callback methods
|
||
|
|
* @param callback is the tethering callback to indicate PAN service is ready or not to tether
|
||
|
|
* to one or more devices
|
||
|
|
* @return new instance of {@link TetheredInterfaceRequest} which can be used to turn off
|
||
|
|
* Bluetooth tethering or {@code null} if service is not enabled
|
||
|
|
* @hide
|
||
|
|
*/
|
||
|
|
@SystemApi(client = MODULE_LIBRARIES)
|
||
|
|
@RequiresBluetoothConnectPermission
|
||
|
|
@RequiresPermission(
|
||
|
|
allOf = {
|
||
|
|
android.Manifest.permission.BLUETOOTH_CONNECT,
|
||
|
|
android.Manifest.permission.BLUETOOTH_PRIVILEGED,
|
||
|
|
android.Manifest.permission.TETHER_PRIVILEGED,
|
||
|
|
})
|
||
|
|
@Nullable
|
||
|
|
public TetheredInterfaceRequest requestTetheredInterface(
|
||
|
|
@NonNull final Executor executor, @NonNull final TetheredInterfaceCallback callback) {
|
||
|
|
Objects.requireNonNull(callback, "Callback must be non-null");
|
||
|
|
Objects.requireNonNull(executor, "Executor must be non-null");
|
||
|
|
final IBluetoothPan service = getService();
|
||
|
|
if (service == null) {
|
||
|
|
Log.w(TAG, "Proxy not attached to service");
|
||
|
|
if (DBG) log(Log.getStackTraceString(new Throwable()));
|
||
|
|
} else if (isEnabled()) {
|
||
|
|
final IBluetoothPanCallback panCallback =
|
||
|
|
new IBluetoothPanCallback.Stub() {
|
||
|
|
@Override
|
||
|
|
public void onAvailable(String iface) {
|
||
|
|
executor.execute(() -> callback.onAvailable(iface));
|
||
|
|
}
|
||
|
|
|
||
|
|
@Override
|
||
|
|
public void onUnavailable() {
|
||
|
|
executor.execute(() -> callback.onUnavailable());
|
||
|
|
}
|
||
|
|
};
|
||
|
|
try {
|
||
|
|
service.setBluetoothTethering(
|
||
|
|
panCallback, callback.hashCode(), true, mAttributionSource);
|
||
|
|
return new BluetoothTetheredInterfaceRequest(
|
||
|
|
service, panCallback, callback.hashCode());
|
||
|
|
} catch (RemoteException e) {
|
||
|
|
Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable()));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Determines whether tethering is enabled
|
||
|
|
*
|
||
|
|
* @return true if tethering is on, false if not or some error occurred
|
||
|
|
* @hide
|
||
|
|
*/
|
||
|
|
@SystemApi
|
||
|
|
@RequiresBluetoothConnectPermission
|
||
|
|
@RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT)
|
||
|
|
public boolean isTetheringOn() {
|
||
|
|
if (VDBG) log("isTetheringOn()");
|
||
|
|
final IBluetoothPan service = getService();
|
||
|
|
if (service == null) {
|
||
|
|
Log.w(TAG, "Proxy not attached to service");
|
||
|
|
if (DBG) log(Log.getStackTraceString(new Throwable()));
|
||
|
|
} else if (isEnabled()) {
|
||
|
|
try {
|
||
|
|
return service.isTetheringOn(mAttributionSource);
|
||
|
|
} catch (RemoteException e) {
|
||
|
|
Log.e(TAG, e.toString() + "\n" + Log.getStackTraceString(new Throwable()));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
@UnsupportedAppUsage
|
||
|
|
private boolean isEnabled() {
|
||
|
|
return mAdapter.getState() == BluetoothAdapter.STATE_ON;
|
||
|
|
}
|
||
|
|
|
||
|
|
@UnsupportedAppUsage
|
||
|
|
private static boolean isValidDevice(BluetoothDevice device) {
|
||
|
|
return device != null && BluetoothAdapter.checkBluetoothAddress(device.getAddress());
|
||
|
|
}
|
||
|
|
|
||
|
|
@UnsupportedAppUsage
|
||
|
|
private static void log(String msg) {
|
||
|
|
Log.d(TAG, msg);
|
||
|
|
}
|
||
|
|
}
|