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service+notifs

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This commit is contained in:
leo 2022-05-11 14:37:43 +02:00
parent 7653acb442
commit 0c552e2968
Signed by: leo
GPG Key ID: 0DD993BFB2B307DB
5 changed files with 91 additions and 23 deletions
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7
.idea/misc.xml generated
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@ -1,5 +1,12 @@
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="DesignSurface">
<option name="filePathToZoomLevelMap">
<map>
<entry key="app/src/main/res/layout/activity_main.xml" value="0.33" />
</map>
</option>
</component>
<component name="ProjectRootManager" version="2" languageLevel="JDK_11" default="true" project-jdk-name="1.8" project-jdk-type="JavaSDK">
<output url="file://$PROJECT_DIR$/build/classes" />
</component>

30
app/src/main/java/com/example/co2sense_app/BLEDevice.java
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@ -7,6 +7,7 @@ import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothGatt;
import android.bluetooth.BluetoothGattCallback;
import android.bluetooth.BluetoothGattCharacteristic;
import android.bluetooth.BluetoothManager;
import android.bluetooth.BluetoothProfile;
import android.companion.AssociationRequest;
@ -26,9 +27,10 @@ import androidx.annotation.RequiresApi;
import androidx.core.app.ActivityCompat;
import androidx.core.content.ContextCompat;
import java.nio.ByteBuffer;
import java.util.NoSuchElementException;
public class BLEDevice {
public abstract class BLEDevice {
private static final int REQUEST_BT_PERMISSION = 16535;
private static final int REQUEST_ENABLE_BT = 16536;
private static final int SELECT_DEVICE_REQUEST_CODE = 16537;
@ -37,7 +39,7 @@ public class BLEDevice {
private final Activity activity;
private boolean startPairingOnBTStart;
private BluetoothGatt bluetoothGatt;
protected BluetoothGatt bluetoothGatt;
private BluetoothDevice device;
private final ActivityResultLauncher<String> requestPermissionLauncher;
@ -48,6 +50,7 @@ public class BLEDevice {
}
public void startBT() {
Log.d("bt", "startBT");
Context context = activity.getApplicationContext();
BluetoothManager bluetoothManager = ContextCompat.getSystemService(context, BluetoothManager.class);
if (bluetoothManager == null)
@ -69,6 +72,7 @@ public class BLEDevice {
}
protected void pair() {
Log.d("bt", "pair");
BluetoothDeviceFilter deviceFilter = new BluetoothDeviceFilter.Builder()
//.setNamePattern(Pattern.compile("My device"))
//.addServiceUuid(new ParcelUuid(new UUID(0x123abcL, -1L)), null)
@ -106,15 +110,33 @@ public class BLEDevice {
return;
}*/
Log.d("bt", device.toString());
BLEDevice mainClass = this;
bluetoothGatt = device.connectGatt(activity, false, new BluetoothGattCallback() {
@Override
public void onConnectionStateChange(BluetoothGatt gatt, int status, int newState) {
if (newState == BluetoothProfile.STATE_CONNECTED) {
Log.d("bt", "connected");
bluetoothGatt.discoverServices();
} else if (newState == BluetoothProfile.STATE_DISCONNECTED) {
Log.d("bt", "disconnected");
}
}
@Override
public void onServicesDiscovered(BluetoothGatt gatt, int status) {
if (status == BluetoothGatt.GATT_SUCCESS) {
Log.d("bt", "onServicesDiscovered: finished");
mainClass.onServicesDiscovered();
} else {
Log.w("bt", "onServicesDiscovered received: " + status);
}
}
@Override
public void onCharacteristicChanged(BluetoothGatt gatt, BluetoothGattCharacteristic characteristic) {
super.onCharacteristicChanged(gatt, characteristic);
Log.d("bt", "onCharacteristicChanged: "+ ByteBuffer.wrap(characteristic.getValue()).getShort());
}
});
}
@ -147,4 +169,8 @@ public class BLEDevice {
public void startPairingOnBTStart(boolean status) {
startPairingOnBTStart = status;
}
protected void onServicesDiscovered(){
}
}

38
app/src/main/java/com/example/co2sense_app/CO2Sensor.java
View File

@ -1,13 +1,51 @@
package com.example.co2sense_app;
import android.Manifest;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.bluetooth.BluetoothAssignedNumbers;
import android.bluetooth.BluetoothGatt;
import android.bluetooth.BluetoothGattCharacteristic;
import android.bluetooth.BluetoothGattDescriptor;
import android.bluetooth.BluetoothGattService;
import android.content.pm.PackageManager;
import android.os.Build;
import android.util.Log;
import androidx.annotation.RequiresApi;
import androidx.core.app.ActivityCompat;
import java.util.List;
import java.util.UUID;
public class CO2Sensor extends BLEDevice {
private int co2, temp, hum;
public final UUID ENVIRONMENTAL_SENSING_UUID = UUID.fromString("0000181a-0000-1000-8000-00805f9b34fb");
public final UUID CHAR_CO2_UUID = UUID.fromString("00000C39-0000-1000-8000-00805f9b34fb");
public final UUID CHAR_TEMP_UUID = UUID.fromString("00002A6E-0000-1000-8000-00805f9b34fb");
public final UUID CHAR_HUM_UUID = UUID.fromString("00002A6F-0000-1000-8000-00805f9b34fb");
public final UUID DESCR_CCC_UUID = UUID.fromString("00002902-0000-1000-8000-00805f9b34fb");
@RequiresApi(api = Build.VERSION_CODES.S)
CO2Sensor(Activity activity) {
super(activity);
}
@Override
protected void onServicesDiscovered() {
super.onServicesDiscovered();
enableNotifications(bluetoothGatt);
}
@SuppressLint("MissingPermission")
private void enableNotifications(BluetoothGatt bluetoothGatt) {
BluetoothGattService ES = bluetoothGatt.getService(ENVIRONMENTAL_SENSING_UUID);
BluetoothGattCharacteristic CO2Char = ES.getCharacteristic(CHAR_CO2_UUID);
BluetoothGattDescriptor CO2Descr = CO2Char.getDescriptor(DESCR_CCC_UUID);
CO2Descr.setValue(BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE);
bluetoothGatt.setCharacteristicNotification(CO2Char, true);
bluetoothGatt.writeDescriptor(CO2Descr);
}
}

25
app/src/main/java/com/example/co2sense_app/MainActivity.java
View File

@ -3,29 +3,36 @@ package com.example.co2sense_app;
import androidx.annotation.Nullable;
import androidx.annotation.RequiresApi;
import androidx.appcompat.app.AppCompatActivity;
import androidx.constraintlayout.widget.ConstraintLayout;
import android.content.Intent;
import android.os.Build;
import android.os.Bundle;
import android.view.View;
public class MainActivity extends AppCompatActivity {
BLEDevice sensor;
CO2Sensor sensor;
@RequiresApi(api = Build.VERSION_CODES.S)
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
sensor = new CO2Sensor(this);
sensor.startPairingOnBTStart(true);
ConstraintLayout mainLayout = findViewById(R.id.mainLayout);
mainLayout.setOnClickListener(v -> {
sensor.startBT();
sensor.pair();
});
}
@RequiresApi(api = Build.VERSION_CODES.S)
@Override
protected void onStart() {
super.onStart();
sensor = new BLEDevice(this);
sensor.startPairingOnBTStart(true);
sensor.startBT();
sensor.pair();
protected void onDestroy() {
super.onDestroy();
sensor.disconnect();
}
@RequiresApi(api = Build.VERSION_CODES.S)

14
app/src/main/res/layout/activity_main.xml
View File

@ -2,17 +2,7 @@
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/mainLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello World!"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>
tools:context=".MainActivity"/>