Merge "Fix NFC state switched off every time user entered connection preferences page"
diff --git a/src/com/android/settings/nfc/NfcAirplaneModeObserver.java b/src/com/android/settings/nfc/NfcAirplaneModeObserver.java
deleted file mode 100644
index afb5616..0000000
--- a/src/com/android/settings/nfc/NfcAirplaneModeObserver.java
+++ /dev/null
@@ -1,83 +0,0 @@
-/*
- * Copyright (C) 2018 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.nfc;
-
-import android.content.Context;
-import android.database.ContentObserver;
-import android.net.Uri;
-import android.nfc.NfcAdapter;
-import android.os.Handler;
-import android.os.Looper;
-import android.provider.Settings;
-
-import androidx.annotation.VisibleForTesting;
-import androidx.preference.Preference;
-
-/**
- * NfcAirplaneModeObserver is a helper to manage the Nfc on/off when airplane mode status
- * is changed.
- */
-public class NfcAirplaneModeObserver extends ContentObserver {
-
-    private final Context mContext;
-    private final NfcAdapter mNfcAdapter;
-    private final Preference mPreference;
-    private int mAirplaneMode;
-
-    @VisibleForTesting
-    final static Uri AIRPLANE_MODE_URI =
-            Settings.Global.getUriFor(Settings.Global.AIRPLANE_MODE_ON);
-
-    public NfcAirplaneModeObserver(Context context, NfcAdapter nfcAdapter, Preference preference) {
-        super(new Handler(Looper.getMainLooper()));
-        mContext = context;
-        mNfcAdapter = nfcAdapter;
-        mPreference = preference;
-        updateNfcPreference();
-    }
-
-    public void register() {
-        mContext.getContentResolver().registerContentObserver(AIRPLANE_MODE_URI, false, this);
-    }
-
-    public void unregister() {
-        mContext.getContentResolver().unregisterContentObserver(this);
-    }
-
-    @Override
-    public void onChange(boolean selfChange, Uri uri) {
-        super.onChange(selfChange, uri);
-        updateNfcPreference();
-    }
-
-    private void updateNfcPreference() {
-        final int airplaneMode = Settings.Global.getInt(
-                mContext.getContentResolver(), Settings.Global.AIRPLANE_MODE_ON, mAirplaneMode);
-        if (airplaneMode == mAirplaneMode) {
-            return;
-        }
-
-        mAirplaneMode = airplaneMode;
-        if (mAirplaneMode == 1) {
-            // airplane mode is on, need to turn off NFC, and check if user can toggle it
-            mNfcAdapter.disable();
-            mPreference.setEnabled(NfcPreferenceController.isToggleableInAirplaneMode(mContext));
-        } else {
-            // airplane mode is off, no restriction
-            mPreference.setEnabled(true);
-        }
-    }
-}
diff --git a/src/com/android/settings/nfc/NfcPreferenceController.java b/src/com/android/settings/nfc/NfcPreferenceController.java
index 2ca3b23..34e7e24 100644
--- a/src/com/android/settings/nfc/NfcPreferenceController.java
+++ b/src/com/android/settings/nfc/NfcPreferenceController.java
@@ -41,8 +41,6 @@
     public static final String KEY_TOGGLE_NFC = "toggle_nfc";
     private final NfcAdapter mNfcAdapter;
     private NfcEnabler mNfcEnabler;
-    @VisibleForTesting
-    NfcAirplaneModeObserver mAirplaneModeObserver;
 
     public NfcPreferenceController(Context context, String key) {
         super(context, key);
@@ -61,11 +59,6 @@
 
         mNfcEnabler = new NfcEnabler(mContext, switchPreference);
 
-        // Listen to airplane mode updates if NFC should be turned off when airplane mode is on
-        if (shouldTurnOffNFCInAirplaneMode(mContext) || isToggleableInAirplaneMode(mContext)) {
-            mAirplaneModeObserver =
-                    new NfcAirplaneModeObserver(mContext, mNfcAdapter, switchPreference);
-        }
     }
 
     @Override
@@ -108,9 +101,6 @@
 
     @Override
     public void onResume() {
-        if (mAirplaneModeObserver != null) {
-            mAirplaneModeObserver.register();
-        }
         if (mNfcEnabler != null) {
             mNfcEnabler.resume();
         }
@@ -118,9 +108,6 @@
 
     @Override
     public void onPause() {
-        if (mAirplaneModeObserver != null) {
-            mAirplaneModeObserver.unregister();
-        }
         if (mNfcEnabler != null) {
             mNfcEnabler.pause();
         }
diff --git a/tests/robotests/src/com/android/settings/nfc/NfcAirplaneModeObserverTest.java b/tests/robotests/src/com/android/settings/nfc/NfcAirplaneModeObserverTest.java
deleted file mode 100644
index 06d9773..0000000
--- a/tests/robotests/src/com/android/settings/nfc/NfcAirplaneModeObserverTest.java
+++ /dev/null
@@ -1,117 +0,0 @@
-/*
- * Copyright (C) 2018 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.nfc;
-
-import static com.google.common.truth.Truth.assertThat;
-
-import android.content.ContentResolver;
-import android.content.Context;
-import android.nfc.NfcAdapter;
-import android.provider.Settings;
-import android.provider.Settings.Global;
-
-import androidx.preference.SwitchPreference;
-
-import com.android.settings.testutils.shadow.ShadowNfcAdapter;
-
-import org.junit.Before;
-import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.robolectric.RobolectricTestRunner;
-import org.robolectric.RuntimeEnvironment;
-import org.robolectric.annotation.Config;
-import org.robolectric.util.ReflectionHelpers;
-
-@RunWith(RobolectricTestRunner.class)
-@Config(shadows = {ShadowNfcAdapter.class})
-public class NfcAirplaneModeObserverTest {
-
-    private Context mContext;
-    private NfcAdapter mNfcAdapter;
-    private SwitchPreference mNfcPreference;
-    private NfcAirplaneModeObserver mNfcAirplaneModeObserver;
-
-    @Before
-    public void setUp() {
-        mContext = RuntimeEnvironment.application;
-        mNfcAdapter = NfcAdapter.getDefaultAdapter(mContext);
-
-        mNfcPreference = new SwitchPreference(mContext);
-
-        mNfcAirplaneModeObserver =
-                new NfcAirplaneModeObserver(mContext, mNfcAdapter, mNfcPreference);
-    }
-
-    @Test
-    public void NfcAirplaneModeObserver_airplaneOn_shouldDisableNfc() {
-        ReflectionHelpers.setField(mNfcAirplaneModeObserver,
-                "mAirplaneMode", 0);
-        Settings.Global.putInt(mContext.getContentResolver(),
-                Settings.Global.AIRPLANE_MODE_ON, 1);
-
-        mNfcAirplaneModeObserver.onChange(false,
-                NfcAirplaneModeObserver.AIRPLANE_MODE_URI);
-
-        assertThat(mNfcAdapter.isEnabled()).isFalse();
-    }
-
-    @Test
-    public void NfcAirplaneModeObserver_airplaneModeOnNfcToggleable_shouldEnablePreference() {
-        ReflectionHelpers.setField(mNfcAirplaneModeObserver, "mAirplaneMode", 0);
-        final ContentResolver contentResolver = mContext.getContentResolver();
-        Settings.Global.putInt(contentResolver, Settings.Global.AIRPLANE_MODE_ON, 1);
-        Settings.Global.putString(contentResolver,
-                Settings.Global.AIRPLANE_MODE_TOGGLEABLE_RADIOS, Settings.Global.RADIO_NFC);
-
-        mNfcAirplaneModeObserver.onChange(false, NfcAirplaneModeObserver.AIRPLANE_MODE_URI);
-
-        assertThat(mNfcPreference.isEnabled()).isTrue();
-    }
-
-    @Test
-    public void NfcAirplaneModeObserver_airplaneModeOnNfcNotToggleable_shouldDisablePreference() {
-        ReflectionHelpers.setField(mNfcAirplaneModeObserver, "mAirplaneMode", 0);
-        final ContentResolver contentResolver = mContext.getContentResolver();
-        Settings.Global.putInt(contentResolver, Settings.Global.AIRPLANE_MODE_ON, 1);
-        Settings.Global.putString(contentResolver,
-                Settings.Global.AIRPLANE_MODE_TOGGLEABLE_RADIOS, Global.RADIO_WIFI);
-
-        mNfcAirplaneModeObserver.onChange(false, NfcAirplaneModeObserver.AIRPLANE_MODE_URI);
-
-        assertThat(mNfcPreference.isEnabled()).isFalse();
-    }
-
-    @Test
-    public void NfcAirplaneModeObserver_airplaneModeOff_shouldEnablePreference() {
-        ReflectionHelpers.setField(mNfcAirplaneModeObserver, "mAirplaneMode", 1);
-        Settings.Global.putInt(mContext.getContentResolver(), Settings.Global.AIRPLANE_MODE_ON, 0);
-
-        mNfcAirplaneModeObserver.onChange(false, NfcAirplaneModeObserver.AIRPLANE_MODE_URI);
-
-        assertThat(mNfcPreference.isEnabled()).isTrue();
-    }
-
-    @Test
-    public void NfcAirplaneModeObserver_airplaneModeOff_shouldNotEnableNfcAutomatically() {
-        ReflectionHelpers.setField(mNfcAirplaneModeObserver, "mAirplaneMode", 1);
-        Settings.Global.putInt(mContext.getContentResolver(), Settings.Global.AIRPLANE_MODE_ON, 0);
-
-        mNfcAirplaneModeObserver.onChange(false, NfcAirplaneModeObserver.AIRPLANE_MODE_URI);
-
-        assertThat(mNfcAdapter.isEnabled()).isFalse();
-    }
-}
diff --git a/tests/robotests/src/com/android/settings/nfc/NfcPreferenceControllerTest.java b/tests/robotests/src/com/android/settings/nfc/NfcPreferenceControllerTest.java
index fbbc5c7..b6c8f37 100644
--- a/tests/robotests/src/com/android/settings/nfc/NfcPreferenceControllerTest.java
+++ b/tests/robotests/src/com/android/settings/nfc/NfcPreferenceControllerTest.java
@@ -224,38 +224,6 @@
     }
 
     @Test
-    public void displayPreference_airplaneModeRadiosContainsNfc_shouldCreateAirplaneModeObserver() {
-        Settings.Global.putString(mContext.getContentResolver(),
-                Settings.Global.AIRPLANE_MODE_RADIOS, Settings.Global.RADIO_NFC);
-
-        mNfcController.displayPreference(mScreen);
-
-        assertThat(mNfcController.mAirplaneModeObserver).isNotNull();
-    }
-
-    @Test
-    public void displayPreference_nfcToggleableInAirplaneMode_shouldCreateAirplaneModeObserver() {
-        Settings.Global.putString(mContext.getContentResolver(),
-                Settings.Global.AIRPLANE_MODE_TOGGLEABLE_RADIOS, Settings.Global.RADIO_NFC);
-
-        mNfcController.displayPreference(mScreen);
-
-        assertThat(mNfcController.mAirplaneModeObserver).isNotNull();
-    }
-
-    @Test
-    public void displayPreference_nfcNotAffectByAirplaneMode_shouldNotCreateAirplaneModeObserver() {
-        Settings.Global.putString(mContext.getContentResolver(),
-                Settings.Global.AIRPLANE_MODE_TOGGLEABLE_RADIOS, "");
-        Settings.Global.putString(mContext.getContentResolver(),
-                Settings.Global.AIRPLANE_MODE_RADIOS, "");
-
-        mNfcController.displayPreference(mScreen);
-
-        assertThat(mNfcController.mAirplaneModeObserver).isNull();
-    }
-
-    @Test
     public void ncfSliceWorker_nfcBroadcast_noExtra_sliceDoesntUpdate() {
         final NfcSliceWorker worker = spy(
                 new NfcSliceWorker(mContext, mNfcController.getSliceUri()));