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/*
* Copyright (C) 2015 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.location.provider;
import android.annotation.NonNull;
import android.hardware.location.IActivityRecognitionHardware;
import android.hardware.location.IActivityRecognitionHardwareClient;
import android.os.Binder;
import android.os.IBinder;
import android.os.Process;
import android.os.RemoteException;
import android.util.Log;
/**
* A client class for interaction with an Activity-Recognition provider.
*/
public abstract class ActivityRecognitionProviderClient {
private static final String TAG = "ArProviderClient";
protected ActivityRecognitionProviderClient() {}
private IActivityRecognitionHardwareClient.Stub mClient =
new IActivityRecognitionHardwareClient.Stub() {
@Override
public void onAvailabilityChanged(
boolean isSupported,
IActivityRecognitionHardware instance) {
int callingUid = Binder.getCallingUid();
if (callingUid != Process.SYSTEM_UID) {
Log.d(TAG, "Ignoring calls from non-system server. Uid: " + callingUid);
return;
}
ActivityRecognitionProvider provider;
try {
provider = isSupported ? new ActivityRecognitionProvider(instance) : null;
} catch (RemoteException e) {
Log.e(TAG, "Error creating Hardware Activity-Recognition Provider.", e);
return;
}
onProviderChanged(isSupported, provider);
}
};
/**
* Gets the binder needed to interact with proxy provider in the platform.
*/
@NonNull
public IBinder getBinder() {
return mClient;
}
/**
* Called when a change in the availability of {@link ActivityRecognitionProvider} is detected.
*
* @param isSupported whether the platform supports the provider natively
* @param instance the available provider's instance
*/
public abstract void onProviderChanged(
boolean isSupported,
ActivityRecognitionProvider instance);
}
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