[Pair hearing devices] Add "Saved devices" to show bonded but not connected hearing devices

* BaseHearingDevicePreferenceController will also be used in "Hearing devices", so extract to parent class first. Bug: 237625815 Test: make RunSettingsRoboTests ROBOTEST_FILTER="(SavedHearingDeviceUpdaterTest|BaseBluetoothDevicePreferenceControllerTest|BluetoothDeviceUpdaterTest|AvailableMediaBluetoothDeviceUpdaterTest|ConnectedBluetoothDeviceUpdaterTest|SavedBluetoothDeviceUpdaterTest)" Change-Id: I8a492866f48e3a664b9ff78bce5a4f082c0dc465
2022-12-30 03:11:48 +08:00
parent 48d56420ce
commit c1fb0ae240
20 changed files with 573 additions and 66 deletions
--- a/src/com/android/settings/accessibility/BaseBluetoothDevicePreferenceController.java
+++ b/src/com/android/settings/accessibility/BaseBluetoothDevicePreferenceController.java
@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.accessibility;
+
+import android.content.Context;
+import android.content.pm.PackageManager;
+
+import androidx.preference.Preference;
+import androidx.preference.PreferenceCategory;
+import androidx.preference.PreferenceScreen;
+
+import com.android.settings.connecteddevice.DevicePreferenceCallback;
+import com.android.settings.core.BasePreferenceController;
+
+/**
+ * Abstract base class for bluetooth preference controller to handle UI logic, e.g. availability
+ * status, preference added, and preference removed.
+ */
+public abstract class BaseBluetoothDevicePreferenceController extends BasePreferenceController
+        implements DevicePreferenceCallback {
+
+    private PreferenceCategory mPreferenceCategory;
+
+    public BaseBluetoothDevicePreferenceController(Context context,
+            String preferenceKey) {
+        super(context, preferenceKey);
+    }
+
+    @Override
+    public int getAvailabilityStatus() {
+        return (mContext.getPackageManager().hasSystemFeature(PackageManager.FEATURE_BLUETOOTH))
+                ? AVAILABLE
+                : CONDITIONALLY_UNAVAILABLE;
+    }
+
+    @Override
+    public void displayPreference(PreferenceScreen screen) {
+        super.displayPreference(screen);
+
+        mPreferenceCategory = screen.findPreference(getPreferenceKey());
+        mPreferenceCategory.setVisible(false);
+    }
+
+    @Override
+    public void onDeviceAdded(Preference preference) {
+        if (mPreferenceCategory.getPreferenceCount() == 0) {
+            mPreferenceCategory.setVisible(true);
+        }
+        mPreferenceCategory.addPreference(preference);
+    }
+
+    @Override
+    public void onDeviceRemoved(Preference preference) {
+        mPreferenceCategory.removePreference(preference);
+        if (mPreferenceCategory.getPreferenceCount() == 0) {
+            mPreferenceCategory.setVisible(false);
+        }
+    }
+}