Migration to BLE lib 2.3.1

app/build.gradle

@@ -40,14 +40,11 @@ dependencies {
     implementation 'com.google.android.material:material:1.4.0'
 
     // Brings the new BluetoothLeScanner API to older platforms
-    implementation 'no.nordicsemi.android.support.v18:scanner:1.5.0'
+    implementation 'no.nordicsemi.android.support.v18:scanner:1.5.1'
 
     // Log Bluetooth LE events in nRF Logger
     implementation 'no.nordicsemi.android:log:2.3.0'
 
     // BLE library
-    implementation 'no.nordicsemi.android:ble-livedata:2.2.4'
-    // To add BLE Library as a module, replace the above dependency with the following
-    // and uncomment 2 lines in settings.gradle file.
-    // implementation project(":ble-livedata")
+    implementation 'no.nordicsemi.android:ble-livedata:2.3.1'
 }

app/src/main/AndroidManifest.xml

@@ -47,7 +47,8 @@
 			android:name=".SplashScreenActivity"
 			android:theme="@style/AppTheme.SplashScreen"
 			android:noHistory="true"
-			android:launchMode="singleTop">
+			android:launchMode="singleTop"
+			android:exported="true">
 			<intent-filter>
 				<action android:name="android.intent.action.MAIN"/>
 				<category android:name="android.intent.category.LAUNCHER"/>
@@ -57,7 +58,8 @@
 			android:name=".ScannerActivity"
 			android:icon="@drawable/ic_blinky_feature"
 			android:label="@string/feature_name"
-			android:launchMode="singleTop">
+			android:launchMode="singleTop"
+			android:exported="true">
 			<intent-filter>
 				<action android:name="android.intent.action.MAIN"/>
 				<category android:name="no.nordicsemi.android.nrftoolbox.LAUNCHER"/>

app/src/main/java/no/nordicsemi/android/blinky/BlinkyActivity.java

@@ -31,6 +31,7 @@
 import androidx.appcompat.app.AppCompatActivity;
 import androidx.lifecycle.ViewModelProvider;
 import no.nordicsemi.android.ble.livedata.state.ConnectionState;
+import no.nordicsemi.android.ble.observer.ConnectionObserver;
 import no.nordicsemi.android.blinky.adapter.DiscoveredBluetoothDevice;
 import no.nordicsemi.android.blinky.databinding.ActivityBlinkyBinding;
 import no.nordicsemi.android.blinky.viewmodels.BlinkyViewModel;
@@ -88,9 +89,9 @@ protected void onCreate(final Bundle savedInstanceState) {
 						binding.deviceContainer.setVisibility(View.GONE);
 						binding.progressContainer.setVisibility(View.GONE);
 						final ConnectionState.Disconnected stateWithReason = (ConnectionState.Disconnected) state;
-						if (stateWithReason.isNotSupported()) {
+						if (stateWithReason.getReason() == ConnectionObserver.REASON_NOT_SUPPORTED) {
 							binding.infoNotSupported.container.setVisibility(View.VISIBLE);
-						} else if (stateWithReason.isTimeout()) {
+						} else {
 							binding.infoTimeout.container.setVisibility(View.VISIBLE);
 						}
 					}

app/src/main/java/no/nordicsemi/android/blinky/profile/BlinkyManager.java

@@ -176,16 +176,16 @@ public boolean isRequiredServiceSupported(@NonNull final BluetoothGatt gatt) {
 
 			boolean writeRequest = false;
 			if (ledCharacteristic != null) {
-				final int rxProperties = ledCharacteristic.getProperties();
-				writeRequest = (rxProperties & BluetoothGattCharacteristic.PROPERTY_WRITE) > 0;
+				final int ledProperties = ledCharacteristic.getProperties();
+				writeRequest = (ledProperties & BluetoothGattCharacteristic.PROPERTY_WRITE) > 0;
 			}
 
 			supported = buttonCharacteristic != null && ledCharacteristic != null && writeRequest;
 			return supported;
 		}
 
 		@Override
-		protected void onDeviceDisconnected() {
+		protected void onServicesInvalidated() {
 			buttonCharacteristic = null;
 			ledCharacteristic = null;
 		}
@@ -206,8 +206,10 @@ public void turnLed(final boolean on) {
 			return;
 
 		log(Log.VERBOSE, "Turning LED " + (on ? "ON" : "OFF") + "...");
-		writeCharacteristic(ledCharacteristic,
-				on ? BlinkyLED.turnOn() : BlinkyLED.turnOff())
-				.with(ledCallback).enqueue();
+		writeCharacteristic(
+				ledCharacteristic,
+				BlinkyLED.turn(on),
+				BluetoothGattCharacteristic.WRITE_TYPE_DEFAULT
+		).with(ledCallback).enqueue();
 	}
 }

app/src/main/java/no/nordicsemi/android/blinky/profile/data/BlinkyLED.java

@@ -30,6 +30,11 @@ public final class BlinkyLED {
     private static final byte STATE_OFF = 0x00;
     private static final byte STATE_ON = 0x01;
 
+    @NonNull
+    public static Data turn(final boolean on) {
+        return on ? turnOn() : turnOff();
+    }
+
     @NonNull
     public static Data turnOn() {
         return Data.opCode(STATE_ON);

app/src/main/java/no/nordicsemi/android/blinky/viewmodels/BlinkyViewModel.java

@@ -26,9 +26,11 @@
 import android.bluetooth.BluetoothDevice;
 
 import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
 import androidx.lifecycle.AndroidViewModel;
 import androidx.lifecycle.LiveData;
 
+import no.nordicsemi.android.ble.ConnectRequest;
 import no.nordicsemi.android.ble.livedata.state.ConnectionState;
 import no.nordicsemi.android.blinky.adapter.DiscoveredBluetoothDevice;
 import no.nordicsemi.android.blinky.profile.BlinkyManager;
@@ -38,6 +40,8 @@
 public class BlinkyViewModel extends AndroidViewModel {
 	private final BlinkyManager blinkyManager;
 	private BluetoothDevice device;
+	@Nullable
+	private ConnectRequest connectRequest;
 
 	public BlinkyViewModel(@NonNull final Application application) {
 		super(application);
@@ -47,7 +51,7 @@ public BlinkyViewModel(@NonNull final Application application) {
 	}
 
 	public LiveData<ConnectionState> getConnectionState() {
-		return blinkyManager.getState();
+		return blinkyManager.state;
 	}
 
 	public LiveData<Boolean> getButtonState() {
@@ -81,10 +85,11 @@ public void connect(@NonNull final DiscoveredBluetoothDevice target) {
 	 */
 	public void reconnect() {
 		if (device != null) {
-			blinkyManager.connect(device)
+			connectRequest = blinkyManager.connect(device)
 					.retry(3, 100)
 					.useAutoConnect(false)
-					.enqueue();
+					.then(d -> connectRequest = null);
+			connectRequest.enqueue();
 		}
 	}
 
@@ -93,7 +98,11 @@ public void reconnect() {
 	 */
 	private void disconnect() {
 		device = null;
-		blinkyManager.disconnect().enqueue();
+		if (connectRequest != null) {
+			connectRequest.cancelPendingConnection();
+		} else if (blinkyManager.isConnected()) {
+			blinkyManager.disconnect().enqueue();
+		}
 	}
 
 	/**
@@ -108,8 +117,6 @@ public void setLedState(final boolean on) {
 	@Override
 	protected void onCleared() {
 		super.onCleared();
-		if (blinkyManager.isConnected()) {
-			disconnect();
-		}
+		disconnect();
 	}
 }