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@ -1,3 +1,18 @@ |
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/* |
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* Copyright (C) 2017 CentraleSupélec |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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package fr.centralesupelec.students.clientble; |
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package fr.centralesupelec.students.clientble; |
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import android.app.Activity; |
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import android.app.Activity; |
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@ -11,18 +26,24 @@ import android.content.IntentFilter; |
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import android.content.ServiceConnection; |
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import android.content.ServiceConnection; |
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import android.os.IBinder; |
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import android.os.IBinder; |
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import android.os.Bundle; |
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import android.os.Bundle; |
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import android.provider.SyncStateContract; |
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import android.util.Log; |
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import android.util.Log; |
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import android.view.MenuItem; |
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import android.view.MenuItem; |
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import android.view.View; |
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import android.view.View; |
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import android.widget.TextView; |
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import android.widget.TextView; |
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/** |
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* Activité qui se connecte à un appareil BLE proposant notre service privé et |
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* affiche les caractéristiques de ce dernier. |
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* Permet la modification de la caractéristique longue éditable, et écoute |
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* les notifications de la valeur du potentiomètre. |
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*/ |
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public class SimpleDetailActivity extends Activity { |
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public class SimpleDetailActivity extends Activity { |
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private final static String TAG = SimpleDetailActivity.class.getSimpleName(); |
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private final static String TAG = SimpleDetailActivity.class.getSimpleName(); |
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public static final String EXTRAS_DEVICE_NAME = "DEVICE_NAME"; |
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public static final String EXTRAS_DEVICE_NAME = "DEVICE_NAME"; |
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public static final String EXTRAS_DEVICE_ADDRESS = "DEVICE_ADDRESS"; |
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public static final String EXTRAS_DEVICE_ADDRESS = "DEVICE_ADDRESS"; |
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/* Référence à des objets de l’interface. */ |
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private TextView mDeviceAddressView; |
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private TextView mDeviceAddressView; |
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private TextView mConnectionStateView; |
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private TextView mConnectionStateView; |
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private TextView mSensorValueView; |
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private TextView mSensorValueView; |
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@ -32,7 +53,6 @@ public class SimpleDetailActivity extends Activity { |
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private String mDeviceName; |
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private String mDeviceName; |
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private String mDeviceAddress; |
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private String mDeviceAddress; |
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private BluetoothLeService mBluetoothLeService; |
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private BluetoothLeService mBluetoothLeService; |
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private boolean mConnected = false; |
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private boolean mConnected = false; |
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private BluetoothGattCharacteristic mSensorValueCharac; |
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private BluetoothGattCharacteristic mSensorValueCharac; |
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@ -63,7 +83,9 @@ public class SimpleDetailActivity extends Activity { |
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// ACTION_GATT_CONNECTED: connected to a GATT server.
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// ACTION_GATT_CONNECTED: connected to a GATT server.
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// ACTION_GATT_DISCONNECTED: disconnected from a GATT server.
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// ACTION_GATT_DISCONNECTED: disconnected from a GATT server.
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// ACTION_GATT_SERVICES_DISCOVERED: discovered GATT services.
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// ACTION_GATT_SERVICES_DISCOVERED: discovered GATT services.
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// ACTION_SENSOR_VALUE_AVAILABLE: received data from the device. This can be a result of read
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// ACTION_SENSOR_VALUE_AVAILABLE: received data (sensor value) from the device. This can be a result of read
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// or notification operations.
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// ACTION_WRITABLE_VALUE_AVAILABLE: received data (long characteristic value) from the device. This can be a result of read
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// or notification operations.
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// or notification operations.
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private final BroadcastReceiver mGattUpdateReceiver = new BroadcastReceiver() { |
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private final BroadcastReceiver mGattUpdateReceiver = new BroadcastReceiver() { |
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@Override |
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@Override |
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@ -81,37 +103,47 @@ public class SimpleDetailActivity extends Activity { |
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} else if (BluetoothLeService.ACTION_GATT_SERVICES_DISCOVERED.equals(action)) { |
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} else if (BluetoothLeService.ACTION_GATT_SERVICES_DISCOVERED.equals(action)) { |
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// Show all the supported services and characteristics on the user interface.
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// Show all the supported services and characteristics on the user interface.
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Log.d(TAG, "ACTION_GATT_SERVICES_DISCOVERED reçu."); |
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Log.d(TAG, "ACTION_GATT_SERVICES_DISCOVERED reçu."); |
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requestValues(); |
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requestValues(); // Demande des valeurs des caractéristiques.
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} else if (BluetoothLeService.ACTION_SENSOR_VALUE_AVAILABLE.equals(action)) { |
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} else if (BluetoothLeService.ACTION_SENSOR_VALUE_AVAILABLE.equals(action)) { |
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Log.d(TAG, "ACTION_SENSOR_VALUE_AVAILABLE reçu."); |
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Log.d(TAG, "ACTION_SENSOR_VALUE_AVAILABLE reçu."); |
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final String data = intent.getStringExtra(BluetoothLeService.EXTRA_DATA); |
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final String data = intent.getStringExtra(BluetoothLeService.EXTRA_DATA); |
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Log.d(TAG, data); |
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Log.d(TAG, data); |
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displaySensorValue(data); |
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displaySensorValue(data); // Affichage de la nouvelle valeur.
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} else if (BluetoothLeService.ACTION_WRITABLE_VALUE_AVAILABLE.equals(action)) { |
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} else if (BluetoothLeService.ACTION_WRITABLE_VALUE_AVAILABLE.equals(action)) { |
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Log.d(TAG, "ACTION_WRITABLE_VALUE_AVAILABLE reçu."); |
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Log.d(TAG, "ACTION_WRITABLE_VALUE_AVAILABLE reçu."); |
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final String data = intent.getStringExtra(BluetoothLeService.EXTRA_DATA); |
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final String data = intent.getStringExtra(BluetoothLeService.EXTRA_DATA); |
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Log.d(TAG, data); |
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Log.d(TAG, data); |
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displayWritableValue(data); |
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displayWritableValue(data); // Affichage de la nouvelle valeur.
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} else { |
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} else { |
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Log.w(TAG, "Action non reconnue."); |
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Log.w(TAG, "Action non reconnue."); |
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} |
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} |
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} |
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} |
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}; |
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}; |
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/** |
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* Nettoyage de l’interface. |
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*/ |
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private void clearUI() { |
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private void clearUI() { |
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mSensorValueView.setText(R.string.no_data); |
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mSensorValueView.setText(R.string.no_data); |
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mWritableValueView.setText(R.string.no_data); |
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mWritableValueView.setText(R.string.no_data); |
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} |
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} |
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/** |
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* Méthode appelée lors de la création de l’activité ou de la modification de l’orientation |
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* de l’écran (paysage/portrait.) |
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* @param savedInstanceState |
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*/ |
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@Override |
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@Override |
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protected void onCreate(Bundle savedInstanceState) { |
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protected void onCreate(Bundle savedInstanceState) { |
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super.onCreate(savedInstanceState); |
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super.onCreate(savedInstanceState); |
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setContentView(R.layout.simple_detail_layout); |
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setContentView(R.layout.simple_detail_layout); |
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// Réception des données de l’Intent qui a lancée l’activité.
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final Intent intent = getIntent(); |
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final Intent intent = getIntent(); |
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mDeviceName = intent.getStringExtra(EXTRAS_DEVICE_NAME); |
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mDeviceName = intent.getStringExtra(EXTRAS_DEVICE_NAME); |
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mDeviceAddress = intent.getStringExtra(EXTRAS_DEVICE_ADDRESS); |
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mDeviceAddress = intent.getStringExtra(EXTRAS_DEVICE_ADDRESS); |
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// Configuration des références vers les objets de l’interface
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mDeviceAddressView = (TextView) findViewById(R.id.device_address); |
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mDeviceAddressView = (TextView) findViewById(R.id.device_address); |
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mDeviceAddressView.setText(mDeviceAddress); |
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mDeviceAddressView.setText(mDeviceAddress); |
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@ -120,16 +152,23 @@ public class SimpleDetailActivity extends Activity { |
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mSensorValueView = (TextView) findViewById(R.id.sensor_value); |
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mSensorValueView = (TextView) findViewById(R.id.sensor_value); |
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mWritableValueView = (TextView) findViewById(R.id.writable_value); |
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mWritableValueView = (TextView) findViewById(R.id.writable_value); |
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// Configuration de la barre supérieure
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getActionBar().setTitle(mDeviceName); |
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getActionBar().setTitle(mDeviceName); |
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getActionBar().setDisplayHomeAsUpEnabled(true); |
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getActionBar().setDisplayHomeAsUpEnabled(true); |
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// Liaison au service BluetoothLeService
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Intent gattServiceIntent = new Intent(this, BluetoothLeService.class); |
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Intent gattServiceIntent = new Intent(this, BluetoothLeService.class); |
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bindService(gattServiceIntent, mServiceConnection, BIND_AUTO_CREATE); |
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bindService(gattServiceIntent, mServiceConnection, BIND_AUTO_CREATE); |
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} |
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} |
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/** |
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* Méthode appelée après onCreate, ou quand l’application repasse au premier plan. |
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*/ |
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@Override |
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@Override |
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protected void onResume() { |
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protected void onResume() { |
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super.onResume(); |
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super.onResume(); |
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// Recevoir à nouveau les notifications de la valeur du potentiomètre.
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registerReceiver(mGattUpdateReceiver, makeGattUpdateIntentFilter()); |
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registerReceiver(mGattUpdateReceiver, makeGattUpdateIntentFilter()); |
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if (mBluetoothLeService != null) { |
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if (mBluetoothLeService != null) { |
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final boolean result = mBluetoothLeService.connect(mDeviceAddress); |
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final boolean result = mBluetoothLeService.connect(mDeviceAddress); |
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@ -138,47 +177,41 @@ public class SimpleDetailActivity extends Activity { |
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} |
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} |
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} |
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} |
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/** |
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* Méthode appelée avant onDestroy, ou quand l’application passe à l’arrière-plan. |
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*/ |
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@Override |
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@Override |
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protected void onPause() { |
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protected void onPause() { |
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super.onPause(); |
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super.onPause(); |
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// Cesser de recevoir les notifications de la valeur du potentiomètre.
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mBluetoothLeService.setCharacteristicNotification(mSensorValueCharac, false); |
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mBluetoothLeService.setCharacteristicNotification(mSensorValueCharac, false); |
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unregisterReceiver(mGattUpdateReceiver); |
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unregisterReceiver(mGattUpdateReceiver); |
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} |
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} |
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/** |
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* Quand l’activité se termine. |
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*/ |
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@Override |
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@Override |
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protected void onDestroy() { |
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protected void onDestroy() { |
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super.onDestroy(); |
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super.onDestroy(); |
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// Fin de la liaison avec le service
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unbindService(mServiceConnection); |
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unbindService(mServiceConnection); |
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mBluetoothLeService = null; |
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mBluetoothLeService = null; |
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} |
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} |
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/* |
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/** |
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@Override |
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* Gestion de l’appui sur un bouton de la barre supérieure. |
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public boolean onCreateOptionsMenu(Menu menu) { |
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* @param item |
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getMenuInflater().inflate(R.menu.gatt_services, menu); |
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* @return |
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if (mConnected) { |
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*/ |
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menu.findItem(R.id.menu_connect).setVisible(false); |
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menu.findItem(R.id.menu_disconnect).setVisible(true); |
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} else { |
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menu.findItem(R.id.menu_connect).setVisible(true); |
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menu.findItem(R.id.menu_disconnect).setVisible(false); |
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} |
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return true; |
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} |
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*/ |
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@Override |
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@Override |
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public boolean onOptionsItemSelected(MenuItem item) { |
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public boolean onOptionsItemSelected(MenuItem item) { |
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switch(item.getItemId()) { |
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switch(item.getItemId()) { |
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/* |
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// Bouton à gauche
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case R.id.menu_connect: |
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mBluetoothLeService.connect(mDeviceAddress); |
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return true; |
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case R.id.menu_disconnect: |
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mBluetoothLeService.disconnect(); |
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return true; |
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*/ |
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case android.R.id.home: |
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case android.R.id.home: |
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// Identique à un appel au bouton "retour" en forme de triangle en bas à gauche
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// de la barre inférieure d’Android.
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onBackPressed(); |
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onBackPressed(); |
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return true; |
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return true; |
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} |
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} |
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@ -186,6 +219,10 @@ public class SimpleDetailActivity extends Activity { |
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} |
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} |
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/** |
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* Affichage de l’était de la connexion. |
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* @param resourceId |
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*/ |
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private void updateConnectionState(final int resourceId) { |
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private void updateConnectionState(final int resourceId) { |
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runOnUiThread(new Runnable() { |
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runOnUiThread(new Runnable() { |
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@Override |
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@Override |
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@ -195,26 +232,55 @@ public class SimpleDetailActivity extends Activity { |
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}); |
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}); |
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} |
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} |
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private void displaySensorValue(String data) { |
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/** |
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if (data != null) { |
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* Affichage de la valeur du potentiomètre. |
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mSensorValueView.setText(data); |
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* @param data |
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} |
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*/ |
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private void displaySensorValue(final String data) { |
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runOnUiThread(new Runnable() { |
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@Override |
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public void run() { |
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if (data != null) { |
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mSensorValueView.setText(data); |
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} |
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} |
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}); |
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} |
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} |
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private void displayWritableValue(String data) { |
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/** |
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if (data != null) { |
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* Affichage de la valeur de la caractéristique longue éditable. |
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mWritableValueView.setText(data); |
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* @param data |
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} |
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*/ |
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private void displayWritableValue(final String data) { |
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runOnUiThread(new Runnable() { |
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@Override |
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public void run() { |
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if (data != null) { |
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mWritableValueView.setText(data); |
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} |
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} |
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}); |
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} |
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} |
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/** |
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* Lors d’un appui sur le bouton "Read" pour lire de nouveau la valeur de la caractéristique longue. |
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* @param view |
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*/ |
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public void onRefreshClick(View view) { |
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public void onRefreshClick(View view) { |
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Log.d(TAG, "onRefreshClick()"); |
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Log.d(TAG, "onRefreshClick()"); |
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requestWritableValue(); |
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requestWritableValue(); |
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} |
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} |
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/** |
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* Lors d’un appui sur le bouton "Write" pour envoyer à l’appareil BLE dans la caractéristique |
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* longue éditable la valeur (ASCII) du champ textuel au-dessus. |
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* @param view |
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*/ |
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public void onSendClick(View view) { |
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public void onSendClick(View view) { |
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Log.d(TAG, "onSendClick()"); |
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Log.d(TAG, "onSendClick()"); |
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// Récupération du contenu du champ textuel éditable par l’utilisateur.
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byte [] text = mFormView.getText().toString().getBytes(); |
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byte [] text = mFormView.getText().toString().getBytes(); |
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// Longueur maximale de la valeur de la caractéristique: 20 octets.
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byte [] data = new byte[20]; |
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byte [] data = new byte[20]; |
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int max = Math.min(text.length, GattConstants.WRITABLE_CHARACTERISTIC_MAX_LENGTH); |
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int max = Math.min(text.length, GattConstants.WRITABLE_CHARACTERISTIC_MAX_LENGTH); |
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for (int i = 0; i < max; i++) { |
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for (int i = 0; i < max; i++) { |
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@ -224,6 +290,9 @@ public class SimpleDetailActivity extends Activity { |
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mBluetoothLeService.writeCharacterisitic(mWritableValueCharac, data); |
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mBluetoothLeService.writeCharacterisitic(mWritableValueCharac, data); |
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} |
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} |
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/** |
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* Demande de la valeur de la caractéristique longue éditable. |
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*/ |
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private void requestWritableValue() { |
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private void requestWritableValue() { |
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BluetoothGattService privateService = mBluetoothLeService.getPrivateService(); |
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BluetoothGattService privateService = mBluetoothLeService.getPrivateService(); |
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if (privateService == null) { |
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if (privateService == null) { |
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@ -239,7 +308,10 @@ public class SimpleDetailActivity extends Activity { |
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} |
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} |
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} |
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} |
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private void requestAndSubsribeSensorValue() { |
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/** |
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* Demande la valeur du potentiomètre, et souscrit à ses notifications. |
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*/ |
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private void requestAndSubscribeSensorValue() { |
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BluetoothGattService privateService = mBluetoothLeService.getPrivateService(); |
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BluetoothGattService privateService = mBluetoothLeService.getPrivateService(); |
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if (privateService == null) { |
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if (privateService == null) { |
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Log.w(TAG, "Service Gatt privé non détecté."); |
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Log.w(TAG, "Service Gatt privé non détecté."); |
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@ -248,9 +320,11 @@ public class SimpleDetailActivity extends Activity { |
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mSensorValueCharac = |
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mSensorValueCharac = |
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privateService.getCharacteristic(GattConstants.SENSOR_CHARACTERISTIC_UUID); |
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privateService.getCharacteristic(GattConstants.SENSOR_CHARACTERISTIC_UUID); |
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if (mSensorValueCharac != null) { |
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if (mSensorValueCharac != null) { |
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// Lecture.
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mBluetoothLeService.readCharacteristic(mSensorValueCharac); |
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mBluetoothLeService.readCharacteristic(mSensorValueCharac); |
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// Souscription aux notifications.
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final int charaProp = mSensorValueCharac.getProperties(); |
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final int charaProp = mSensorValueCharac.getProperties(); |
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mBluetoothLeService.readCharacteristic(mSensorValueCharac); |
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if ((charaProp | BluetoothGattCharacteristic.PROPERTY_NOTIFY) > 0) { |
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if ((charaProp | BluetoothGattCharacteristic.PROPERTY_NOTIFY) > 0) { |
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Log.d(TAG, "Demande de notification."); |
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Log.d(TAG, "Demande de notification."); |
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mBluetoothLeService.setCharacteristicNotification(mSensorValueCharac, true); |
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mBluetoothLeService.setCharacteristicNotification(mSensorValueCharac, true); |
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@ -258,14 +332,22 @@ public class SimpleDetailActivity extends Activity { |
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} else { |
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} else { |
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Log.w(TAG, "SENSOR_CHARACTERISTIC_UUID non trouvé"); |
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Log.w(TAG, "SENSOR_CHARACTERISTIC_UUID non trouvé"); |
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} |
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} |
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} |
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} |
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/** |
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* Demande les valeurs de deux caractéristiques du service, |
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* et souscrit aux notifications de la valeur du potentiomètre. |
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*/ |
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private void requestValues() { |
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private void requestValues() { |
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requestWritableValue(); |
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requestWritableValue(); |
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requestAndSubsribeSensorValue(); |
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requestAndSubscribeSensorValue(); |
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} |
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} |
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/** |
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* Filtre les types d’Intents broadcastés à recevoir, suivant les noms des actions. |
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* Ne recevoir que les actions envoyées par BluetoothLeService. |
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* @return |
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*/ |
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private static IntentFilter makeGattUpdateIntentFilter() { |
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private static IntentFilter makeGattUpdateIntentFilter() { |
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final IntentFilter intentFilter = new IntentFilter(); |
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final IntentFilter intentFilter = new IntentFilter(); |
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intentFilter.addAction(BluetoothLeService.ACTION_GATT_CONNECTED); |
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intentFilter.addAction(BluetoothLeService.ACTION_GATT_CONNECTED); |
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