Show all devices, including connected ones, into "Previously connected" page

-Add connected devices in "Previously connected" page
-Set active when clicking a connected device

Bug: 147150246
Test: make -j50 RunSettingsRoboTests
Change-Id: I4422cd63c360a4387cedc4f80f34474b42f82a1f

src/com/android/settings/bluetooth/SavedBluetoothDeviceUpdater.java

@@ -24,6 +24,7 @@ import androidx.annotation.VisibleForTesting;
 import androidx.preference.Preference;
 
 import com.android.settings.connecteddevice.DevicePreferenceCallback;
+import com.android.settings.connecteddevice.PreviouslyConnectedDeviceDashboardFragment;
 import com.android.settings.dashboard.DashboardFragment;
 import com.android.settingslib.bluetooth.CachedBluetoothDevice;
 import com.android.settingslib.bluetooth.CachedBluetoothDeviceManager;
@@ -42,13 +43,15 @@ public class SavedBluetoothDeviceUpdater extends BluetoothDeviceUpdater
 
     private static final String PREF_KEY = "saved_bt";
 
+    private final boolean mDisplayConnected;
+
     @VisibleForTesting
     BluetoothAdapter mBluetoothAdapter;
 
     public SavedBluetoothDeviceUpdater(Context context, DashboardFragment fragment,
             DevicePreferenceCallback devicePreferenceCallback) {
         super(context, fragment, devicePreferenceCallback);
-
+        mDisplayConnected = (fragment instanceof PreviouslyConnectedDeviceDashboardFragment);
         mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
     }
 
@@ -101,7 +104,8 @@ public class SavedBluetoothDeviceUpdater extends BluetoothDeviceUpdater
                     ", is connected : " + device.isConnected() + ", is profile connected : "
                     + cachedDevice.isConnected());
         }
-        return device.getBondState() == BluetoothDevice.BOND_BONDED && !device.isConnected();
+        return device.getBondState() == BluetoothDevice.BOND_BONDED
+                && (mDisplayConnected || !device.isConnected());
     }
 
     @Override
@@ -109,6 +113,9 @@ public class SavedBluetoothDeviceUpdater extends BluetoothDeviceUpdater
         mMetricsFeatureProvider.logClickedPreference(preference, mFragment.getMetricsCategory());
         final CachedBluetoothDevice device = ((BluetoothDevicePreference) preference)
                 .getBluetoothDevice();
+        if (device.isConnected()) {
+            return device.setActive();
+        }
         device.connect();
         return true;
     }

tests/robotests/src/com/android/settings/bluetooth/SavedBluetoothDeviceUpdaterTest.java

@@ -144,6 +144,15 @@ public class SavedBluetoothDeviceUpdaterTest {
         verify(mCachedBluetoothDevice).connect();
     }
 
+    @Test
+    public void onClick_Preference_connected_setActive() {
+        when(mCachedBluetoothDevice.isConnected()).thenReturn(true);
+
+        mBluetoothDeviceUpdater.onPreferenceClick(mPreference);
+
+        verify(mCachedBluetoothDevice).setActive();
+    }
+
     @Test
     public void forceUpdate_findCachedBluetoothDeviceIsMatched_addPreference() {
         final List<BluetoothDevice> bluetoothDevices = new ArrayList<>();