src/com/android/settings/network/telephony/MobileNetworkActivity.java - platform/packages/apps/Settings - Git at Google

 /*
  * 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.network.telephony;

 import android.app.ActionBar;
 import android.content.BroadcastReceiver;
 import android.content.Context;
 import android.content.Intent;
 import android.content.IntentFilter;
 import android.os.Bundle;
 import android.provider.Settings;
 import android.telephony.SubscriptionInfo;
 import android.telephony.SubscriptionManager;
 import android.view.Menu;
 import android.view.View;

 import androidx.annotation.NonNull;
 import androidx.annotation.VisibleForTesting;
 import androidx.fragment.app.Fragment;
 import androidx.fragment.app.FragmentManager;
 import androidx.fragment.app.FragmentTransaction;

 import com.android.internal.telephony.TelephonyIntents;
 import com.android.internal.util.CollectionUtils;
 import com.android.settings.R;
 import com.android.settings.core.FeatureFlags;
 import com.android.settings.core.SettingsBaseActivity;
 import com.android.settings.development.featureflags.FeatureFlagPersistent;
 import com.android.settings.network.SubscriptionUtil;

 import com.google.android.material.bottomnavigation.BottomNavigationView;

 import java.util.ArrayList;
 import java.util.List;
 import java.util.Objects;

 public class MobileNetworkActivity extends SettingsBaseActivity {

     private static final String TAG = "MobileNetworkActivity";
     @VisibleForTesting
     static final String MOBILE_SETTINGS_TAG = "mobile_settings:";
     @VisibleForTesting
     static final int SUB_ID_NULL = Integer.MIN_VALUE;

     @VisibleForTesting
     SubscriptionManager mSubscriptionManager;
     @VisibleForTesting
     int mCurSubscriptionId;
     @VisibleForTesting
     List<SubscriptionInfo> mSubscriptionInfos = new ArrayList<>();
     private PhoneChangeReceiver mPhoneChangeReceiver;

     private final SubscriptionManager.OnSubscriptionsChangedListener
             mOnSubscriptionsChangeListener
             = new SubscriptionManager.OnSubscriptionsChangedListener() {
         @Override
         public void onSubscriptionsChanged() {
             if (!Objects.equals(mSubscriptionInfos,
                     mSubscriptionManager.getActiveSubscriptionInfoList(true))) {
                 updateSubscriptions(null);
             }
         }
     };

     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);

         if (FeatureFlagPersistent.isEnabled(this, FeatureFlags.NETWORK_INTERNET_V2)) {
             setContentView(R.layout.mobile_network_settings_container_v2);
         } else {
             setContentView(R.layout.mobile_network_settings_container);
         }
         setActionBar(findViewById(R.id.mobile_action_bar));
         mPhoneChangeReceiver = new PhoneChangeReceiver(this, () -> {
             if (mCurSubscriptionId != SUB_ID_NULL) {
                 // When the radio changes (ex: CDMA->GSM), refresh the fragment.
                 // This is very rare.
                 switchFragment(new MobileNetworkSettings(), mCurSubscriptionId,
                         true /* forceUpdate */);
             }
         });
         mSubscriptionManager = getSystemService(SubscriptionManager.class);
         mSubscriptionInfos = mSubscriptionManager.getActiveSubscriptionInfoList(true);
         mCurSubscriptionId = savedInstanceState != null
                 ? savedInstanceState.getInt(Settings.EXTRA_SUB_ID, SUB_ID_NULL)
                 : SUB_ID_NULL;

         final ActionBar actionBar = getActionBar();
         if (actionBar != null) {
             actionBar.setDisplayHomeAsUpEnabled(true);
         }

         updateSubscriptions(savedInstanceState);
     }

     @Override
     protected void onStart() {
         super.onStart();
         mPhoneChangeReceiver.register();
         mSubscriptionManager.addOnSubscriptionsChangedListener(mOnSubscriptionsChangeListener);
     }

     @Override
     protected void onStop() {
         super.onStop();
         mPhoneChangeReceiver.unregister();
         mSubscriptionManager.removeOnSubscriptionsChangedListener(mOnSubscriptionsChangeListener);
     }

     @Override
     protected void onSaveInstanceState(@NonNull Bundle outState) {
         super.onSaveInstanceState(outState);
         saveInstanceState(outState);
     }

     @VisibleForTesting
     void saveInstanceState(@NonNull Bundle outState) {
         outState.putInt(Settings.EXTRA_SUB_ID, mCurSubscriptionId);
     }

     @VisibleForTesting
     void updateSubscriptions(Bundle savedInstanceState) {
         // Set the title to the name of the subscription. If we don't have subscription info, the
         // title will just default to the label for this activity that's already specified in
         // AndroidManifest.xml.
         final SubscriptionInfo subscription = getSubscription();
         if (subscription != null) {
             setTitle(subscription.getDisplayName());
         }

         mSubscriptionInfos = mSubscriptionManager.getActiveSubscriptionInfoList(true);

         if (!FeatureFlagPersistent.isEnabled(this, FeatureFlags.NETWORK_INTERNET_V2)) {
             updateBottomNavigationView();
         }

         if (savedInstanceState == null) {
             switchFragment(new MobileNetworkSettings(), getSubscriptionId());
         }
     }

     /**
      * Get the current subscription to display. First check whether intent has {@link
      * Settings#EXTRA_SUB_ID} and if so find the subscription with that id. If not, just return the
      * first one in the mSubscriptionInfos list since it is already sorted by sim slot.
      */
     @VisibleForTesting
     SubscriptionInfo getSubscription() {
         final Intent intent = getIntent();
         if (intent != null) {
             final int subId = intent.getIntExtra(Settings.EXTRA_SUB_ID, SUB_ID_NULL);
             if (subId != SUB_ID_NULL) {
                 for (SubscriptionInfo subscription :
                         SubscriptionUtil.getAvailableSubscriptions(this)) {
                     if (subscription.getSubscriptionId() == subId) {
                         return subscription;
                     }
                 }
             }
         }

         if (CollectionUtils.isEmpty(mSubscriptionInfos)) {
             return null;
         }
         return mSubscriptionInfos.get(0);
     }

     /**
      * Get the current subId to display.
      */
     @VisibleForTesting
     int getSubscriptionId() {
         final SubscriptionInfo subscription = getSubscription();
         if (subscription != null) {
             return subscription.getSubscriptionId();
         }
         return SubscriptionManager.INVALID_SUBSCRIPTION_ID;
     }

     @VisibleForTesting
     void updateBottomNavigationView() {
         final BottomNavigationView navigation = findViewById(R.id.bottom_nav);

         if (CollectionUtils.size(mSubscriptionInfos) <= 1) {
             navigation.setVisibility(View.GONE);
         } else {
             final Menu menu = navigation.getMenu();
             menu.clear();
             for (int i = 0, size = mSubscriptionInfos.size(); i < size; i++) {
                 final SubscriptionInfo subscriptionInfo = mSubscriptionInfos.get(i);
                 menu.add(0, subscriptionInfo.getSubscriptionId(), i,
                         subscriptionInfo.getDisplayName())
                         .setIcon(R.drawable.ic_settings_sim);
             }
             navigation.setOnNavigationItemSelectedListener(item -> {
                 switchFragment(new MobileNetworkSettings(), item.getItemId());
                 return true;
             });
         }
     }

     @VisibleForTesting
     void switchFragment(Fragment fragment, int subscriptionId) {
         switchFragment(fragment, subscriptionId, false /* forceUpdate */);
     }

     @VisibleForTesting
     void switchFragment(Fragment fragment, int subscriptionId, boolean forceUpdate) {
         if (mCurSubscriptionId != SUB_ID_NULL && subscriptionId == mCurSubscriptionId
                 && !forceUpdate) {
             return;
         }
         final FragmentManager fragmentManager = getSupportFragmentManager();
         final FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
         final Bundle bundle = new Bundle();
         bundle.putInt(Settings.EXTRA_SUB_ID, subscriptionId);

         fragment.setArguments(bundle);
         fragmentTransaction.replace(R.id.main_content, fragment,
                 buildFragmentTag(subscriptionId));
         fragmentTransaction.commit();
         mCurSubscriptionId = subscriptionId;
     }

     private String buildFragmentTag(int subscriptionId) {
         return MOBILE_SETTINGS_TAG + subscriptionId;
     }

     @VisibleForTesting
     static class PhoneChangeReceiver extends BroadcastReceiver {
         private static final IntentFilter RADIO_TECHNOLOGY_CHANGED_FILTER = new IntentFilter(
                 TelephonyIntents.ACTION_RADIO_TECHNOLOGY_CHANGED);

         private Context mContext;
         private Client mClient;

         interface Client {
             void onPhoneChange();
         }

         public PhoneChangeReceiver(Context context, Client client) {
             mContext = context;
             mClient = client;
         }

         public void register() {
             mContext.registerReceiver(this, RADIO_TECHNOLOGY_CHANGED_FILTER);
         }

         public void unregister() {
             mContext.unregisterReceiver(this);
         }

         @Override
         public void onReceive(Context context, Intent intent) {
             if (!isInitialStickyBroadcast()) {
                 mClient.onPhoneChange();
             }
         }
     }
 }
	/*
	* 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.network.telephony;

	import android.app.ActionBar;
	import android.content.BroadcastReceiver;
	import android.content.Context;
	import android.content.Intent;
	import android.content.IntentFilter;
	import android.os.Bundle;
	import android.provider.Settings;
	import android.telephony.SubscriptionInfo;
	import android.telephony.SubscriptionManager;
	import android.view.Menu;
	import android.view.View;

	import androidx.annotation.NonNull;
	import androidx.annotation.VisibleForTesting;
	import androidx.fragment.app.Fragment;
	import androidx.fragment.app.FragmentManager;
	import androidx.fragment.app.FragmentTransaction;

	import com.android.internal.telephony.TelephonyIntents;
	import com.android.internal.util.CollectionUtils;
	import com.android.settings.R;
	import com.android.settings.core.FeatureFlags;
	import com.android.settings.core.SettingsBaseActivity;
	import com.android.settings.development.featureflags.FeatureFlagPersistent;
	import com.android.settings.network.SubscriptionUtil;

	import com.google.android.material.bottomnavigation.BottomNavigationView;

	import java.util.ArrayList;
	import java.util.List;
	import java.util.Objects;

	public class MobileNetworkActivity extends SettingsBaseActivity {

	private static final String TAG = "MobileNetworkActivity";
	@VisibleForTesting
	static final String MOBILE_SETTINGS_TAG = "mobile_settings:";
	@VisibleForTesting
	static final int SUB_ID_NULL = Integer.MIN_VALUE;

	@VisibleForTesting
	SubscriptionManager mSubscriptionManager;
	@VisibleForTesting
	int mCurSubscriptionId;
	@VisibleForTesting
	List<SubscriptionInfo> mSubscriptionInfos = new ArrayList<>();
	private PhoneChangeReceiver mPhoneChangeReceiver;

	private final SubscriptionManager.OnSubscriptionsChangedListener
	mOnSubscriptionsChangeListener
	= new SubscriptionManager.OnSubscriptionsChangedListener() {
	@Override
	public void onSubscriptionsChanged() {
	if (!Objects.equals(mSubscriptionInfos,
	mSubscriptionManager.getActiveSubscriptionInfoList(true))) {
	updateSubscriptions(null);
	}
	}
	};

	@Override
	protected void onCreate(Bundle savedInstanceState) {
	super.onCreate(savedInstanceState);

	if (FeatureFlagPersistent.isEnabled(this, FeatureFlags.NETWORK_INTERNET_V2)) {
	setContentView(R.layout.mobile_network_settings_container_v2);
	} else {
	setContentView(R.layout.mobile_network_settings_container);
	}
	setActionBar(findViewById(R.id.mobile_action_bar));
	mPhoneChangeReceiver = new PhoneChangeReceiver(this, () -> {
	if (mCurSubscriptionId != SUB_ID_NULL) {
	// When the radio changes (ex: CDMA->GSM), refresh the fragment.
	// This is very rare.
	switchFragment(new MobileNetworkSettings(), mCurSubscriptionId,
	true /* forceUpdate */);
	}
	});
	mSubscriptionManager = getSystemService(SubscriptionManager.class);
	mSubscriptionInfos = mSubscriptionManager.getActiveSubscriptionInfoList(true);
	mCurSubscriptionId = savedInstanceState != null
	? savedInstanceState.getInt(Settings.EXTRA_SUB_ID, SUB_ID_NULL)
	: SUB_ID_NULL;

	final ActionBar actionBar = getActionBar();
	if (actionBar != null) {
	actionBar.setDisplayHomeAsUpEnabled(true);
	}

	updateSubscriptions(savedInstanceState);
	}

	@Override
	protected void onStart() {
	super.onStart();
	mPhoneChangeReceiver.register();
	mSubscriptionManager.addOnSubscriptionsChangedListener(mOnSubscriptionsChangeListener);
	}

	@Override
	protected void onStop() {
	super.onStop();
	mPhoneChangeReceiver.unregister();
	mSubscriptionManager.removeOnSubscriptionsChangedListener(mOnSubscriptionsChangeListener);
	}

	@Override
	protected void onSaveInstanceState(@NonNull Bundle outState) {
	super.onSaveInstanceState(outState);
	saveInstanceState(outState);
	}

	@VisibleForTesting
	void saveInstanceState(@NonNull Bundle outState) {
	outState.putInt(Settings.EXTRA_SUB_ID, mCurSubscriptionId);
	}

	@VisibleForTesting
	void updateSubscriptions(Bundle savedInstanceState) {
	// Set the title to the name of the subscription. If we don't have subscription info, the
	// title will just default to the label for this activity that's already specified in
	// AndroidManifest.xml.
	final SubscriptionInfo subscription = getSubscription();
	if (subscription != null) {
	setTitle(subscription.getDisplayName());
	}

	mSubscriptionInfos = mSubscriptionManager.getActiveSubscriptionInfoList(true);

	if (!FeatureFlagPersistent.isEnabled(this, FeatureFlags.NETWORK_INTERNET_V2)) {
	updateBottomNavigationView();
	}

	if (savedInstanceState == null) {
	switchFragment(new MobileNetworkSettings(), getSubscriptionId());
	}
	}

	/**
	* Get the current subscription to display. First check whether intent has {@link
	* Settings#EXTRA_SUB_ID} and if so find the subscription with that id. If not, just return the
	* first one in the mSubscriptionInfos list since it is already sorted by sim slot.
	*/
	@VisibleForTesting
	SubscriptionInfo getSubscription() {
	final Intent intent = getIntent();
	if (intent != null) {
	final int subId = intent.getIntExtra(Settings.EXTRA_SUB_ID, SUB_ID_NULL);
	if (subId != SUB_ID_NULL) {
	for (SubscriptionInfo subscription :
	SubscriptionUtil.getAvailableSubscriptions(this)) {
	if (subscription.getSubscriptionId() == subId) {
	return subscription;
	}
	}
	}
	}

	if (CollectionUtils.isEmpty(mSubscriptionInfos)) {
	return null;
	}
	return mSubscriptionInfos.get(0);
	}

	/**
	* Get the current subId to display.
	*/
	@VisibleForTesting
	int getSubscriptionId() {
	final SubscriptionInfo subscription = getSubscription();
	if (subscription != null) {
	return subscription.getSubscriptionId();
	}
	return SubscriptionManager.INVALID_SUBSCRIPTION_ID;
	}

	@VisibleForTesting
	void updateBottomNavigationView() {
	final BottomNavigationView navigation = findViewById(R.id.bottom_nav);

	if (CollectionUtils.size(mSubscriptionInfos) <= 1) {
	navigation.setVisibility(View.GONE);
	} else {
	final Menu menu = navigation.getMenu();
	menu.clear();
	for (int i = 0, size = mSubscriptionInfos.size(); i < size; i++) {
	final SubscriptionInfo subscriptionInfo = mSubscriptionInfos.get(i);
	menu.add(0, subscriptionInfo.getSubscriptionId(), i,
	subscriptionInfo.getDisplayName())
	.setIcon(R.drawable.ic_settings_sim);
	}
	navigation.setOnNavigationItemSelectedListener(item -> {
	switchFragment(new MobileNetworkSettings(), item.getItemId());
	return true;
	});
	}
	}

	@VisibleForTesting
	void switchFragment(Fragment fragment, int subscriptionId) {
	switchFragment(fragment, subscriptionId, false /* forceUpdate */);
	}

	@VisibleForTesting
	void switchFragment(Fragment fragment, int subscriptionId, boolean forceUpdate) {
	if (mCurSubscriptionId != SUB_ID_NULL && subscriptionId == mCurSubscriptionId
	&& !forceUpdate) {
	return;
	}
	final FragmentManager fragmentManager = getSupportFragmentManager();
	final FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
	final Bundle bundle = new Bundle();
	bundle.putInt(Settings.EXTRA_SUB_ID, subscriptionId);

	fragment.setArguments(bundle);
	fragmentTransaction.replace(R.id.main_content, fragment,
	buildFragmentTag(subscriptionId));
	fragmentTransaction.commit();
	mCurSubscriptionId = subscriptionId;
	}

	private String buildFragmentTag(int subscriptionId) {
	return MOBILE_SETTINGS_TAG + subscriptionId;
	}

	@VisibleForTesting
	static class PhoneChangeReceiver extends BroadcastReceiver {
	private static final IntentFilter RADIO_TECHNOLOGY_CHANGED_FILTER = new IntentFilter(
	TelephonyIntents.ACTION_RADIO_TECHNOLOGY_CHANGED);

	private Context mContext;
	private Client mClient;

	interface Client {
	void onPhoneChange();
	}

	public PhoneChangeReceiver(Context context, Client client) {
	mContext = context;
	mClient = client;
	}

	public void register() {
	mContext.registerReceiver(this, RADIO_TECHNOLOGY_CHANGED_FILTER);
	}

	public void unregister() {
	mContext.unregisterReceiver(this);
	}

	@Override
	public void onReceive(Context context, Intent intent) {
	if (!isInitialStickyBroadcast()) {
	mClient.onPhoneChange();
	}
	}
	}
	}