diff options
Diffstat (limited to 'SetupWizard/src/com/android/car/setupwizard/bluetooth/BluetoothActivity.java')
| -rw-r--r-- | SetupWizard/src/com/android/car/setupwizard/bluetooth/BluetoothActivity.java | 427 |
1 files changed, 0 insertions, 427 deletions
diff --git a/SetupWizard/src/com/android/car/setupwizard/bluetooth/BluetoothActivity.java b/SetupWizard/src/com/android/car/setupwizard/bluetooth/BluetoothActivity.java deleted file mode 100644 index 734e1ee..0000000 --- a/SetupWizard/src/com/android/car/setupwizard/bluetooth/BluetoothActivity.java +++ /dev/null @@ -1,427 +0,0 @@ -/* - * 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. - */ - -package com.android.car.setupwizard.bluetooth; - -import static com.android.setupwizardlib.util.ResultCodes.RESULT_SKIP; - -import android.app.Activity; -import android.bluetooth.BluetoothAdapter; -import android.bluetooth.BluetoothDevice; -import android.content.BroadcastReceiver; -import android.content.Context; -import android.content.Intent; -import android.content.IntentFilter; -import android.os.Bundle; -import android.os.Handler; -import android.util.Log; -import android.view.View; - -import com.android.car.setupwizard.R; -import com.android.car.setupwizard.bluetooth.BluetoothDeviceHierarchy.BluetoothItem; - -import com.android.setupwizardlib.GlifRecyclerLayout; -import com.android.setupwizardlib.items.IItem; -import com.android.setupwizardlib.items.Item; -import com.android.setupwizardlib.items.ItemGroup; -import com.android.setupwizardlib.items.RecyclerItemAdapter; -import com.android.setupwizardlib.util.ResultCodes; -import com.android.setupwizardlib.util.WizardManagerHelper; - -/** - * An Activity that presents the option for the user to pair the current device to a nearby - * bluetooth device. This screen will list the devices in the order that they are discovered - * as well as an option to not pair at all. - */ -public class BluetoothActivity extends Activity - implements RecyclerItemAdapter.OnItemSelectedListener { - private static final String TAG = "BluetoothActivity"; - - /** - * This value is copied from {@code com.google.android.setupwizard.BaseActivity}. Wizard - * Manager does not actually return an activity result, but if we invoke Wizard Manager without - * requesting a result, the framework will choose not to issue a call to onActivityResult with - * RESULT_CANCELED when navigating backward. - */ - private static final int REQUEST_CODE_NEXT = 10000; - - private static final int BLUETOOTH_SCAN_RETRY_DELAY = 1000; - private static final int MAX_BLUETOOTH_SCAN_RETRIES = 3; - - private final Handler mHandler = new Handler(); - private int mScanRetryCount; - - private BluetoothScanReceiver mScanReceiver; - private BluetoothAdapterReceiver mAdapterReceiver; - private BluetoothAdapter mAdapter; - private BluetoothDeviceHierarchy mBluetoothDeviceHierarchy; - - private GlifRecyclerLayout mLayout; - private Item mScanningIndicator; - private Item mRescanIndicator; - - /** - * The current {@link BluetoothDevice} that is being paired to. - */ - private BluetoothDevice mCurrentBondingDevice; - - @Override - protected void onCreate(Bundle savedInstanceState) { - super.onCreate(savedInstanceState); - - mAdapter = BluetoothAdapter.getDefaultAdapter(); - - if (mAdapter == null) { - Log.w(TAG, "No bluetooth adapter found on the device. Skipping to next action."); - nextAction(RESULT_SKIP); - return; - } - - setContentView(R.layout.bluetooth_activity); - - mLayout = (GlifRecyclerLayout) findViewById(R.id.setup_wizard_layout); - - RecyclerItemAdapter adapter = (RecyclerItemAdapter) mLayout.getAdapter(); - adapter.setOnItemSelectedListener(this); - - ItemGroup hierarchy = (ItemGroup) adapter.getRootItemHierarchy(); - mBluetoothDeviceHierarchy = - (BluetoothDeviceHierarchy) hierarchy.findItemById(R.id.bluetooth_device_list); - mScanningIndicator = (Item) hierarchy.findItemById(R.id.bluetooth_scanning); - mRescanIndicator = (Item) hierarchy.findItemById(R.id.bluetooth_rescan); - - Item descriptionItem = (Item) hierarchy.findItemById(R.id.bluetooth_description); - descriptionItem.setTitle(getText(R.string.bluetooth_description)); - - // Assume that a search will be started, so display the progress bar to let the user - // know that something is going on. - mLayout.setProgressBarShown(true); - - if (mAdapter.isEnabled()) { - setUpAndStartScan(); - } else { - mAdapterReceiver = new BluetoothAdapterReceiver(); - maybeRegisterAdapterReceiver(); - mAdapter.enable(); - } - } - - @Override - protected void onStart() { - super.onStart(); - - if (Log.isLoggable(TAG, Log.DEBUG)) { - Log.d(TAG, "onStart()"); - } - - if (mAdapter == null) { - Log.w(TAG, "No bluetooth adapter found on the device. Skipping to next action."); - nextAction(RESULT_SKIP); - return; - } - - maybeRegisterAdapterReceiver(); - registerScanReceiver(); - } - - @Override - protected void onStop() { - if (Log.isLoggable(TAG, Log.DEBUG)) { - Log.d(TAG, "onStop()"); - } - - stopScanning(); - - if (mScanReceiver != null) { - unregisterReceiver(mScanReceiver); - } - - if (mAdapterReceiver != null) { - unregisterReceiver(mAdapterReceiver); - } - - super.onStop(); - } - - /** - * Sets up an Intent filter to listen for bluetooth state changes and initiates a scan for - * nearby bluetooth devices. - */ - private void setUpAndStartScan() { - mBluetoothDeviceHierarchy.clearAllDevices(); - registerScanReceiver(); - startScanning(); - } - - /** - * Registers a receiver to be listen on changes to the {@link BluetoothAdapter}. This method - * will only register the receiver if {@link #mAdapterReceiver} is not {@code null}. - */ - private void maybeRegisterAdapterReceiver() { - if (mAdapterReceiver == null) { - return; - } - - IntentFilter filter = new IntentFilter(BluetoothAdapter.ACTION_STATE_CHANGED); - registerReceiver(mAdapterReceiver, filter); - } - - /** - * Registers an Intent filter to listen for the results of a bluetooth discovery scan as well as - * changes to individual bluetooth devices. - */ - private void registerScanReceiver() { - if (mScanReceiver == null) { - mScanReceiver = new BluetoothScanReceiver(); - } - - IntentFilter intentFilter = new IntentFilter(); - intentFilter.addAction(BluetoothAdapter.ACTION_DISCOVERY_STARTED); - intentFilter.addAction(BluetoothAdapter.ACTION_DISCOVERY_FINISHED); - intentFilter.addAction(BluetoothDevice.ACTION_FOUND); - intentFilter.addAction(BluetoothDevice.ACTION_NAME_CHANGED); - intentFilter.addAction(BluetoothDevice.ACTION_BOND_STATE_CHANGED); - registerReceiver(mScanReceiver, intentFilter); - } - - /** - * Start a scan for nearby bluetooth devices. If the call to - * {@link BluetoothAdapter#startDiscovery()} fails, then this method will retry the call after - * an exponential backoff period based on {@link #BLUETOOTH_SCAN_RETRY_DELAY}. - * - * <p>If there is already a bluetooth scan in progress when this function is called, then this - * function will do nothing. - */ - private void startScanning() { - if (mAdapter.isDiscovering()) { - return; - } - - boolean success = mAdapter.startDiscovery(); - - if (Log.isLoggable(TAG, Log.DEBUG)) { - Log.d(TAG, "startDiscovery() success: " + success); - } - - // If a scan fails, attempt to try again up to MAX_BLUETOOTH_SCAN_RETRIES tries. - if (success) { - mScanRetryCount = 0; - } else if (mScanRetryCount >= MAX_BLUETOOTH_SCAN_RETRIES) { - if (Log.isLoggable(TAG, Log.DEBUG)) { - Log.d(TAG, "Reached max retries to initiate a bluetooth scan. Moving onto next " - + "action"); - } - - nextAction(RESULT_SKIP); - } else { - mHandler.postDelayed(this::startScanning, - BLUETOOTH_SCAN_RETRY_DELAY * ++mScanRetryCount); - } - } - - /** - * Stops any scan in that is currently in progress for nearby bluetooth devices. - */ - private void stopScanning() { - if (mAdapter != null && mAdapter.isDiscovering()) { - mAdapter.cancelDiscovery(); - } - - mScanRetryCount = 0; - } - - @Override - public void onItemSelected(IItem item) { - if (item instanceof BluetoothItem) { - pairOrUnpairDevice((BluetoothItem) item); - return; - } - - if (!(item instanceof Item)) { - return; - } - - switch (((Item) item).getId()) { - case R.id.bluetooth_dont_connect: - nextAction(RESULT_SKIP); - break; - - case R.id.bluetooth_rescan: - stopScanning(); - startScanning(); - break; - - default: - Log.w(TAG, "Unknown item clicked: " + item); - } - } - - /** - * Starts a pairing or unpairing session with the given device based on its current bonded - * state. For example, if the current item is already paired, it is unpaired and vice versa. - */ - private void pairOrUnpairDevice(BluetoothItem item) { - // Pairing is unreliable while scanning, so cancel discovery. - stopScanning(); - - BluetoothDevice device = item.getBluetoothDevice(); - - boolean success; - switch (device.getBondState()) { - case BluetoothDevice.BOND_BONDED: - mCurrentBondingDevice = null; - success = device.removeBond(); - - if (Log.isLoggable(TAG, Log.DEBUG)) { - Log.d(TAG, "removeBond() to device (" + device + ") successful: " + success); - } - - // Immediately update the UI so that the user has feedback on their actions. - item.updateConnectionState(this /* context */, - BluetoothItem.CONNECTION_STATE_DISCONNECTING); - break; - - case BluetoothDevice.BOND_BONDING: - mCurrentBondingDevice = null; - success = device.cancelBondProcess(); - - if (Log.isLoggable(TAG, Log.DEBUG)) { - Log.d(TAG, "cancelBondProcess() to device (" + device + ") successful: " - + success); - } - - // Immediately update the UI so that the user has feedback on their actions. - item.updateConnectionState(this /* context */, - BluetoothItem.CONNECTION_STATE_CANCELLING); - break; - - case BluetoothDevice.BOND_NONE: - mCurrentBondingDevice = device; - success = device.createBond(); - - if (Log.isLoggable(TAG, Log.DEBUG)) { - Log.d(TAG, "createBond() to device (" + device + ") successful: " + success); - } - - // Immediately update the UI so that the user has feedback on their actions. - item.updateConnectionState(this /* context */, - BluetoothItem.CONNECTION_STATE_CONNECTING); - - default: - Log.w(TAG, "Encountered unknown bond state: " + device.getBondState()); - } - } - - private void nextAction(int resultCode) { - setResult(resultCode); - Intent nextIntent = WizardManagerHelper.getNextIntent(getIntent(), resultCode); - startActivityForResult(nextIntent, REQUEST_CODE_NEXT); - } - - /** - * A {@link BroadReceiver} that listens for when the bluetooth adapter has been turned on. - */ - private class BluetoothAdapterReceiver extends BroadcastReceiver { - @Override - public void onReceive(Context context, Intent intent) { - String action = intent.getAction(); - - if (action != null && action.equals(BluetoothAdapter.ACTION_STATE_CHANGED)) { - int state = intent.getIntExtra(BluetoothAdapter.EXTRA_STATE, - BluetoothAdapter.ERROR); - - if (state == BluetoothAdapter.STATE_ON) { - setUpAndStartScan(); - } - } - } - } - - /** - * Handles bluetooth scan responses and other indicators. - **/ - private class BluetoothScanReceiver extends BroadcastReceiver { - @Override - public void onReceive(Context context, Intent intent) { - String action = intent.getAction(); - - if (action == null) { - return; - } - - BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE); - - if (Log.isLoggable(TAG, Log.VERBOSE)) { - Log.v(TAG, "Received device: " + device); - } - - switch (action) { - case BluetoothDevice.ACTION_FOUND: - if (Log.isLoggable(TAG, Log.VERBOSE)) { - Log.v(TAG, "Bluetooth device found"); - } - - mLayout.setProgressBarShown(false); - mScanningIndicator.setVisible(false); - mRescanIndicator.setVisible(true); - mBluetoothDeviceHierarchy.addOrUpdateDevice(context, device); - break; - - case BluetoothAdapter.ACTION_DISCOVERY_STARTED: - if (Log.isLoggable(TAG, Log.VERBOSE)) { - Log.v(TAG, "Bluetooth discovery started"); - } - - mLayout.setProgressBarShown(true); - mScanningIndicator.setVisible(true); - mRescanIndicator.setVisible(false); - mBluetoothDeviceHierarchy.clearAllDevices(); - break; - - case BluetoothAdapter.ACTION_DISCOVERY_FINISHED: - if (Log.isLoggable(TAG, Log.VERBOSE)) { - Log.v(TAG, "Bluetooth discovery finished"); - } - break; - - case BluetoothDevice.ACTION_BOND_STATE_CHANGED: - if (Log.isLoggable(TAG, Log.VERBOSE)) { - Log.v(TAG, "Bluetooth bond state changed"); - } - - mBluetoothDeviceHierarchy.addOrUpdateDevice(context, device); - - // When a bluetooth device has been paired, then move onto the next action so - // the user is not stuck on this screen for too long. - if (device.equals(mCurrentBondingDevice) - && device.getBondState() == BluetoothDevice.BOND_BONDED) { - nextAction(RESULT_OK); - } - break; - - case BluetoothDevice.ACTION_NAME_CHANGED: - if (Log.isLoggable(TAG, Log.VERBOSE)) { - Log.v(TAG, "Bluetooth device name chaged"); - } - mBluetoothDeviceHierarchy.addOrUpdateDevice(context, device); - break; - - default: - Log.w(TAG, "Unknown action received: " + action); - } - } - } -} |