| /* |
| * 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.settings.bluetooth; |
| |
| import android.bluetooth.BluetoothAdapter; |
| import android.bluetooth.BluetoothDevice; |
| import android.content.Context; |
| import android.util.Log; |
| |
| import androidx.annotation.VisibleForTesting; |
| |
| import com.android.settings.R; |
| import com.android.settings.widget.SummaryUpdater; |
| import com.android.settingslib.bluetooth.BluetoothCallback; |
| import com.android.settingslib.bluetooth.CachedBluetoothDevice; |
| import com.android.settingslib.bluetooth.LocalBluetoothManager; |
| |
| import java.util.Set; |
| |
| /** |
| * Helper class that listeners to bluetooth callback and notify client when there is update in |
| * bluetooth summary info. |
| */ |
| public final class BluetoothSummaryUpdater extends SummaryUpdater implements BluetoothCallback { |
| private static final String TAG = "BluetoothSummaryUpdater"; |
| |
| private final BluetoothAdapter mBluetoothAdapter; |
| private final LocalBluetoothManager mBluetoothManager; |
| |
| public BluetoothSummaryUpdater(Context context, OnSummaryChangeListener listener, |
| LocalBluetoothManager bluetoothManager) { |
| super(context, listener); |
| mBluetoothManager = bluetoothManager; |
| mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter(); |
| } |
| |
| @Override |
| public void onBluetoothStateChanged(int bluetoothState) { |
| notifyChangeIfNeeded(); |
| } |
| |
| @Override |
| public void onConnectionStateChanged(CachedBluetoothDevice cachedDevice, int state) { |
| notifyChangeIfNeeded(); |
| } |
| |
| @Override |
| public void register(boolean listening) { |
| if (mBluetoothAdapter == null) { |
| return; |
| } |
| if (listening) { |
| notifyChangeIfNeeded(); |
| mBluetoothManager.getEventManager().registerCallback(this); |
| } else { |
| mBluetoothManager.getEventManager().unregisterCallback(this); |
| } |
| } |
| |
| @Override |
| public String getSummary() { |
| if (mBluetoothAdapter == null || !mBluetoothAdapter.isEnabled()) { |
| return mContext.getString(R.string.bluetooth_disabled); |
| } |
| switch (mBluetoothAdapter.getConnectionState()) { |
| case BluetoothAdapter.STATE_CONNECTED: |
| return getConnectedDeviceSummary(); |
| case BluetoothAdapter.STATE_CONNECTING: |
| return mContext.getString(R.string.bluetooth_connecting); |
| case BluetoothAdapter.STATE_DISCONNECTING: |
| return mContext.getString(R.string.bluetooth_disconnecting); |
| default: |
| return mContext.getString(R.string.disconnected); |
| } |
| } |
| |
| @VisibleForTesting |
| String getConnectedDeviceSummary() { |
| String deviceName = null; |
| int count = 0; |
| final Set<BluetoothDevice> devices = mBluetoothAdapter.getBondedDevices(); |
| if (devices == null) { |
| Log.e(TAG, "getConnectedDeviceSummary, bonded devices are null"); |
| return mContext.getString(R.string.bluetooth_disabled); |
| } else if (devices.isEmpty()) { |
| Log.e(TAG, "getConnectedDeviceSummary, no bonded devices"); |
| return mContext.getString(R.string.disconnected); |
| } |
| for (BluetoothDevice device : devices) { |
| if (device.isConnected()) { |
| deviceName = device.getName(); |
| count++; |
| if (count > 1) { |
| break; |
| } |
| } |
| } |
| if (deviceName == null) { |
| Log.e(TAG, "getConnectedDeviceSummary, deviceName is null, numBondedDevices=" |
| + devices.size()); |
| for (BluetoothDevice device : devices) { |
| Log.e(TAG, "getConnectedDeviceSummary, device=" + device.getName() + "[" |
| + device.getAddress() + "]" + ", isConnected=" + device.isConnected()); |
| } |
| return mContext.getString(R.string.disconnected); |
| } |
| return count > 1 ? mContext.getString(R.string.bluetooth_connected_multiple_devices_summary) |
| : mContext.getString(R.string.bluetooth_connected_summary, deviceName); |
| } |
| |
| } |