| /* |
| * 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 android.companion; |
| |
| |
| import android.annotation.NonNull; |
| import android.annotation.Nullable; |
| import android.app.PendingIntent; |
| import android.content.Context; |
| import android.content.IntentSender; |
| import android.os.Handler; |
| import android.os.Looper; |
| import android.os.RemoteException; |
| |
| /** |
| * System level service for managing companion devices |
| * |
| * <p>To obtain an instance call {@link Context#getSystemService}({@link |
| * Context#COMPANION_DEVICE_SERVICE}) Then, call {@link #associate(AssociationRequest, |
| * Callback, Handler)} to initiate the flow of associating current package with a |
| * device selected by user.</p> |
| * |
| * @see AssociationRequest |
| */ |
| public final class CompanionDeviceManager { |
| |
| /** |
| * A device, returned in the activity result of the {@link IntentSender} received in |
| * {@link Callback#onDeviceFound} |
| */ |
| public static final String EXTRA_DEVICE = "android.companion.extra.DEVICE"; |
| |
| /** |
| * The package name of the companion device discovery component. |
| * |
| * @hide |
| */ |
| public static final String COMPANION_DEVICE_DISCOVERY_PACKAGE_NAME = |
| "com.android.companiondevicemanager"; |
| |
| /** |
| * A callback to receive once at least one suitable device is found, or the search failed |
| * (e.g. timed out) |
| */ |
| public abstract static class Callback { |
| |
| /** |
| * Called once at least one suitable device is found |
| * |
| * @param chooserLauncher a {@link IntentSender} to launch the UI for user to select a |
| * device |
| */ |
| public abstract void onDeviceFound(IntentSender chooserLauncher); |
| |
| /** |
| * Called if there was an error looking for device(s), e.g. timeout |
| * |
| * @param error the cause of the error |
| */ |
| public abstract void onFailure(CharSequence error); |
| } |
| |
| private final ICompanionDeviceManager mService; |
| private final Context mContext; |
| |
| /** @hide */ |
| public CompanionDeviceManager( |
| @NonNull ICompanionDeviceManager service, @NonNull Context context) { |
| mService = service; |
| mContext = context; |
| } |
| |
| /** |
| * Associate this app with a companion device, selected by user |
| * |
| * <p>Once at least one appropriate device is found, {@code callback} will be called with a |
| * {@link PendingIntent} that can be used to show the list of available devices for the user |
| * to select. |
| * It should be started for result (i.e. using |
| * {@link android.app.Activity#startIntentSenderForResult}), as the resulting |
| * {@link android.content.Intent} will contain extra {@link #EXTRA_DEVICE}, with the selected |
| * device. (e.g. {@link android.bluetooth.BluetoothDevice})</p> |
| * |
| * <p>If your app needs to be excluded from battery optimizations (run in the background) |
| * or to have unrestricted data access (use data in the background) you can declare that |
| * you use the {@link android.Manifest.permission#RUN_IN_BACKGROUND} and {@link |
| * android.Manifest.permission#USE_DATA_IN_BACKGROUND} respectively. Note that these |
| * special capabilities have a negative effect on the device's battery and user's data |
| * usage, therefore you should requested them when absolutely necessary.</p> |
| * |
| * @param request specific details about this request |
| * @param callback will be called once there's at least one device found for user to choose from |
| * @param handler A handler to control which thread the callback will be delivered on, or null, |
| * to deliver it on main thread |
| * |
| * @see AssociationRequest |
| */ |
| public void associate( |
| @NonNull AssociationRequest<?> request, |
| @NonNull Callback callback, |
| @Nullable Handler handler) { |
| final Handler finalHandler = handler != null |
| ? handler |
| : new Handler(Looper.getMainLooper()); |
| try { |
| mService.associate( |
| request, |
| new IFindDeviceCallback.Stub() { |
| @Override |
| public void onSuccess(PendingIntent launcher) { |
| finalHandler.post(() -> { |
| callback.onDeviceFound(launcher.getIntentSender()); |
| }); |
| } |
| |
| @Override |
| public void onFailure(CharSequence reason) { |
| finalHandler.post(() -> callback.onFailure(reason)); |
| } |
| }, |
| mContext.getPackageName()); |
| } catch (RemoteException e) { |
| throw e.rethrowFromSystemServer(); |
| } |
| } |
| |
| /** @hide */ |
| public void requestNotificationAccess() { |
| //TODO implement |
| throw new UnsupportedOperationException("Not yet implemented"); |
| } |
| |
| /** @hide */ |
| public boolean haveNotificationAccess() { |
| //TODO implement |
| throw new UnsupportedOperationException("Not yet implemented"); |
| } |
| |
| } |