Android
Распознавание активности
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Вступление
Распознавание активности - это обнаружение физической активности пользователя для выполнения определенных действий на устройстве, таких как определение точек при обнаружении диска, отключение Wi-Fi при потере телефона или ограничение громкости звонка, когда пользователь ходьба.
Активность Google PlayRecognitionAPI
Это простой пример того, как использовать ActivityRecognitionApi службы GooglePlay. Хотя это отличная библиотека, она не работает на устройствах, на которых не установлены службы Google Play.
Документы для API ActivityRecognition
манифест
<!-- This is needed to use Activity Recognition! -->
<uses-permission android:name="com.google.android.gms.permission.ACTIVITY_RECOGNITION" />
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<receiver android:name=".ActivityReceiver" />
</application>
MainActivity.java
public class MainActivity extends AppCompatActivity implements GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener {
private GoogleApiClient apiClient;
private LocalBroadcastManager localBroadcastManager;
private BroadcastReceiver localActivityReceiver;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
apiClient = new GoogleApiClient.Builder(this)
.addApi(ActivityRecognition.API)
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
.build();
//This just gets the activity intent from the ActivityReceiver class
localBroadcastManager = LocalBroadcastManager.getInstance(this);
localActivityReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
ActivityRecognitionResult recognitionResult = ActivityRecognitionResult.extractResult(intent);
TextView textView = (TextView) findViewById(R.id.activityText);
//This is just to get the activity name. Use at your own risk.
textView.setText(DetectedActivity.zzkf(recognitionResult.getMostProbableActivity().getType()));
}
};
}
@Override
protected void onResume() {
super.onResume();
//Register local broadcast receiver
localBroadcastManager.registerReceiver(localActivityReceiver, new IntentFilter("activity"));
//Connect google api client
apiClient.connect();
}
@Override
protected void onPause() {
super.onPause();
//Unregister for activity recognition
ActivityRecognition.ActivityRecognitionApi.removeActivityUpdates(apiClient, PendingIntent.getBroadcast(this, 0, new Intent(this, ActivityReceiver.class), PendingIntent.FLAG_UPDATE_CURRENT));
//Disconnects api client
apiClient.disconnect();
//Unregister local receiver
localBroadcastManager.unregisterReceiver(localActivityReceiver);
}
@Override
public void onConnected(@Nullable Bundle bundle) {
//Only register for activity recognition if google api client has connected
ActivityRecognition.ActivityRecognitionApi.requestActivityUpdates(apiClient, 0, PendingIntent.getBroadcast(this, 0, new Intent(this, ActivityReceiver.class), PendingIntent.FLAG_UPDATE_CURRENT));
}
@Override
public void onConnectionSuspended(int i) {
}
@Override
public void onConnectionFailed(@NonNull ConnectionResult connectionResult) {
}
}
ActivityReceiver
public class ActivityReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
LocalBroadcastManager.getInstance(context).sendBroadcast(intent.setAction("activity"));
}
}
Распознавание активности PathSense
Распознавание активности PathSense является еще одной хорошей библиотекой для устройств, не имеющих сервисов Google Play, поскольку они создали свою собственную модель распознавания активности, но требуют, чтобы разработчики регистрировались на http://developer.pathsense.com, чтобы получить ключ API и идентификатор клиента ,
манифест
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<receiver android:name=".ActivityReceiver" />
<!-- You need to acquire these from their website (http://developer.pathsense.com) -->
<meta-data
android:name="com.pathsense.android.sdk.CLIENT_ID"
android:value="YOUR_CLIENT_ID" />
<meta-data
android:name="com.pathsense.android.sdk.API_KEY"
android:value="YOUR_API_KEY" />
</application>
MainActivity.java
public class MainActivity extends AppCompatActivity {
private PathsenseLocationProviderApi pathsenseLocationProviderApi;
private LocalBroadcastManager localBroadcastManager;
private BroadcastReceiver localActivityReceiver;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
pathsenseLocationProviderApi = PathsenseLocationProviderApi.getInstance(this);
//This just gets the activity intent from the ActivityReceiver class
localBroadcastManager = LocalBroadcastManager.getInstance(this);
localActivityReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
//The detectedActivities object is passed as a serializable
PathsenseDetectedActivities detectedActivities = (PathsenseDetectedActivities) intent.getSerializableExtra("ps");
TextView textView = (TextView) findViewById(R.id.activityText);
textView.setText(detectedActivities.getMostProbableActivity().getDetectedActivity().name());
}
};
}
@Override
protected void onResume() {
super.onResume();
//Register local broadcast receiver
localBroadcastManager.registerReceiver(localActivityReceiver, new IntentFilter("activity"));
//This gives an update everytime it receives one, even if it was the same as the last update
pathsenseLocationProviderApi.requestActivityUpdates(ActivityReceiver.class);
// This gives updates only when it changes (ON_FOOT -> IN_VEHICLE for example)
// pathsenseLocationProviderApi.requestActivityChanges(ActivityReceiver.class);
}
@Override
protected void onPause() {
super.onPause();
pathsenseLocationProviderApi.removeActivityUpdates();
// pathsenseLocationProviderApi.removeActivityChanges();
//Unregister local receiver
localBroadcastManager.unregisterReceiver(localActivityReceiver);
}
}
ActivityReceiver.java
// You don't have to use their broadcastreceiver, but it's best to do so, and just pass the result
// as needed to another class.
public class ActivityReceiver extends PathsenseActivityRecognitionReceiver {
@Override
protected void onDetectedActivities(Context context, PathsenseDetectedActivities pathsenseDetectedActivities) {
Intent intent = new Intent("activity").putExtra("ps", pathsenseDetectedActivities);
LocalBroadcastManager.getInstance(context).sendBroadcast(intent);
}
}