diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 9518b89..65c9db0 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -511,6 +511,11 @@
             </intent-filter>
         </activity>
 
+        <activity android:name=".network.telephony.ToggleSubscriptionDialogActivity"
+                  android:exported="false"
+                  android:permission="android.permission.WRITE_EMBEDDED_SUBSCRIPTIONS"
+                  android:theme="@style/Transparent" />
+
         <activity
             android:name="Settings$TetherSettingsActivity"
             android:label="@string/tether_settings_title_all"
diff --git a/res/values/strings.xml b/res/values/strings.xml
index f958e06..67ed16e 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -11926,6 +11926,18 @@
     <!-- See less items in contextual homepage [CHAR LIMIT=30]-->
     <string name="see_less">See less</string>
 
+    <!-- Strings for toggling subscriptions dialog activity -->
+    <!-- Title of confirmation dialog asking the user if they want to disable subscription. [CHAR_LIMIT=NONE] -->
+    <string name="privileged_action_disable_sub_dialog_title">Turn off <xliff:g id="carrier_name" example="Google Fi">%1$s</xliff:g>?</string>
+    <!-- Title of confirmation dialog asking the user if they want to disable subscription. [CHAR_LIMIT=NONE] -->
+    <string name="privileged_action_disable_sub_dialog_title_without_carrier">Turn off SIM?</string>
+    <!-- Disabling SIMs progress dialog message [CHAR LIMIT=NONE] -->
+    <string name="privileged_action_disable_sub_dialog_progress">Turning off SIM<xliff:g id="ellipsis" example="...">&#8230;</xliff:g></string>
+    <!-- Title of error messaging indicating the device could not disable the mobile network. [CHAR LIMIT=NONE] -->
+    <string name="privileged_action_disable_fail_title">Can\'t disable carrier</string>
+    <!-- Body text of error message indicating the device could not disable the mobile network, due to an unknown issue. [CHAR LIMIT=NONE] -->
+    <string name="privileged_action_disable_fail_text">Something went wrong and your carrier could not be disabled.</string>
+
     <!-- Title for Network connection request Dialog [CHAR LIMIT=60] -->
     <string name="network_connection_request_dialog_title">Connect to device</string>
     <!-- Summary for Network connection request Dialog [CHAR LIMIT=NONE] -->
diff --git a/src/com/android/settings/SidecarFragment.java b/src/com/android/settings/SidecarFragment.java
new file mode 100644
index 0000000..1a69c03
--- /dev/null
+++ b/src/com/android/settings/SidecarFragment.java
@@ -0,0 +1,364 @@
+/*
+ * Copyright (C) 2020 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;
+
+import android.app.Fragment;
+import android.app.FragmentManager;
+import android.os.Bundle;
+import android.util.Log;
+
+import androidx.annotation.CallSuper;
+import androidx.annotation.IntDef;
+
+import com.android.settingslib.utils.ThreadUtils;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.util.Locale;
+import java.util.Set;
+import java.util.concurrent.CopyOnWriteArraySet;
+
+/**
+ * A headless fragment encapsulating a long-running action such as a network RPC surviving rotation.
+ *
+ * <p>Subclasses should implement their own state machine, updating the state on each state change
+ * via {@link #setState(int, int)}. They can define their own states, however, it is suggested that
+ * the pre-defined {@link @State} constants are used and customizations are implemented via
+ * substates. Custom states must be outside the range of pre-defined states.
+ *
+ * <p>It is safe to update the state at any time, but state updates must originate from the main
+ * thread.
+ *
+ * <p>A listener can be attached that receives state updates while it's registered. Note that state
+ * change events can occur at any point in time and hence a registered listener should unregister if
+ * it cannot act upon the state change (typically a non-resumed fragment).
+ *
+ * <p>Listeners can receive state changes for the same state/substate combination, so listeners
+ * should make sure to be idempotent during state change events.
+ *
+ * <p>If a SidecarFragment is only relevant during the lifetime of another fragment (for example, a
+ * sidecar performing a details request for a DetailsFragment), that fragment needs to become the
+ * managing fragment of the sidecar.
+ *
+ * <h2>Managing fragment responsibilities</h2>
+ *
+ * <ol>
+ *   <li>Instantiates the sidecar fragment when necessary, preferably in {@link #onStart}.
+ *   <li>Removes the sidecar fragment when it's no longer used or when itself is removed. Removal of
+ *       the managing fragment can be detected by checking {@link #isRemoving} in {@link #onStop}.
+ *       <br>
+ *   <li>Registers as a listener in {@link #onResume()}, unregisters in {@link #onPause()}.
+ *   <li>Starts the long-running operation by calling into the sidecar.
+ *   <li>Receives state updates via {@link Listener#onStateChange(SidecarFragment)} and updates the
+ *       UI accordingly.
+ * </ol>
+ *
+ * <h2>Managing fragment example</h2>
+ *
+ * <pre>
+ *     public class MainFragment implements SidecarFragment.Listener {
+ *         private static final String TAG_SOME_SIDECAR = ...;
+ *         private static final String KEY_SOME_SIDECAR_STATE = ...;
+ *
+ *         private SomeSidecarFragment mSidecar;
+ *
+ *         &#064;Override
+ *         public void onStart() {
+ *             super.onStart();
+ *             Bundle args = ...; // optional args
+ *             mSidecar = SidecarFragment.get(getFragmentManager(), TAG_SOME_SIDECAR,
+ *                     SidecarFragment.class, args);
+ *         }
+ *
+ *         &#064;Override
+ *         public void onResume() {
+ *             mSomeSidecar.addListener(this);
+ *         }
+ *
+ *         &#064;Override
+ *         public void onPause() {
+ *             mSomeSidecar.removeListener(this):
+ *         }
+ *     }
+ * </pre>
+ */
+public class SidecarFragment extends Fragment {
+
+    private static final String TAG = "SidecarFragment";
+
+    /**
+     * Get an instance of this sidecar.
+     *
+     * <p>Will return the existing instance if one is already present. Note that the args will not
+     * be used in this situation, so args must be constant for any particular fragment manager and
+     * tag.
+     */
+    @SuppressWarnings("unchecked")
+    protected static <T extends SidecarFragment> T get(
+            FragmentManager fm, String tag, Class<T> clazz, Bundle args) {
+        T fragment = (T) fm.findFragmentByTag(tag);
+        if (fragment == null) {
+            try {
+                fragment = clazz.newInstance();
+            } catch (java.lang.InstantiationException e) {
+                throw new InstantiationException("Unable to create fragment", e);
+            } catch (IllegalAccessException e) {
+                throw new IllegalArgumentException("Unable to create fragment", e);
+            }
+            if (args != null) {
+                fragment.setArguments(args);
+            }
+            fm.beginTransaction().add(fragment, tag).commit();
+            // No real harm in doing this here - get() should generally only be called from onCreate
+            // which is on the main thread - and it allows us to start running the sidecar on this
+            // instance immediately rather than having to wait until the transaction commits.
+            fm.executePendingTransactions();
+        }
+
+        return fragment;
+    }
+
+    /** State definitions. @see {@link #getState} */
+    @Retention(RetentionPolicy.SOURCE)
+    @IntDef({State.INIT, State.RUNNING, State.SUCCESS, State.ERROR})
+    public @interface State {
+        /** Initial idling state. */
+        int INIT = 0;
+
+        /** The long-running operation is in progress. */
+        int RUNNING = 1;
+
+        /** The long-running operation has succeeded. */
+        int SUCCESS = 2;
+
+        /** The long-running operation has failed. */
+        int ERROR = 3;
+    }
+
+    /** Substate definitions. @see {@link #getSubstate} */
+    @Retention(RetentionPolicy.SOURCE)
+    @IntDef({
+        Substate.UNUSED,
+        Substate.RUNNING_BIND_SERVICE,
+        Substate.RUNNING_GET_ACTIVATION_CODE,
+    })
+    public @interface Substate {
+        // Unknown/unused substate.
+        int UNUSED = 0;
+        int RUNNING_BIND_SERVICE = 1;
+        int RUNNING_GET_ACTIVATION_CODE = 2;
+
+        // Future tags: 3+
+    }
+
+    /** **************************************** */
+    private Set<Listener> mListeners = new CopyOnWriteArraySet<>();
+
+    // Used to track whether onCreate has been called yet.
+    private boolean mCreated;
+
+    @State private int mState;
+    @Substate private int mSubstate;
+
+    /** A listener receiving state change events. */
+    public interface Listener {
+
+        /**
+         * Called upon any state or substate change.
+         *
+         * <p>The new state can be queried through {@link #getState} and {@link #getSubstate}.
+         *
+         * <p>Called from the main thread.
+         *
+         * @param fragment the SidecarFragment that changed its state
+         */
+        void onStateChange(SidecarFragment fragment);
+    }
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setRetainInstance(true);
+        mCreated = true;
+        setState(State.INIT, Substate.UNUSED);
+    }
+
+    @Override
+    public void onDestroy() {
+        mCreated = false;
+        super.onDestroy();
+    }
+
+    /**
+     * Registers a listener that will receive subsequent state changes.
+     *
+     * <p>A {@link Listener#onStateChange(SidecarFragment)} event is fired as part of this call
+     * unless {@link #onCreate} has not yet been called (which means that it's unsafe to access this
+     * fragment as it has not been setup or restored completely). In that case, the future call to
+     * onCreate will trigger onStateChange on registered listener.
+     *
+     * <p>Must be called from the main thread.
+     *
+     * @param listener a listener, or null for unregistering the current listener
+     */
+    public void addListener(Listener listener) {
+        ThreadUtils.ensureMainThread();
+        mListeners.add(listener);
+        if (mCreated) {
+            notifyListener(listener);
+        }
+    }
+
+    /**
+     * Removes a previously registered listener.
+     *
+     * @return {@code true} if the listener was removed, {@code false} if there was no such listener
+     *     registered.
+     */
+    public boolean removeListener(Listener listener) {
+        ThreadUtils.ensureMainThread();
+        return mListeners.remove(listener);
+    }
+
+    /** Returns the current state. */
+    @State
+    public int getState() {
+        return mState;
+    }
+
+    /** Returns the current substate. */
+    @Substate
+    public int getSubstate() {
+        return mSubstate;
+    }
+
+    /**
+     * Resets the sidecar to its initial state.
+     *
+     * <p>Implementers can override this method to perform additional reset tasks, but must call the
+     * super method.
+     */
+    @CallSuper
+    public void reset() {
+        setState(State.INIT, Substate.UNUSED);
+    }
+
+    /**
+     * Updates the state and substate and notifies the registered listener.
+     *
+     * <p>Must be called from the main thread.
+     *
+     * @param state the state to transition to
+     * @param substate the substate to transition to
+     */
+    protected void setState(@State int state, @Substate int substate) {
+        ThreadUtils.ensureMainThread();
+
+        mState = state;
+        mSubstate = substate;
+        notifyAllListeners();
+        printState();
+    }
+
+    private void notifyAllListeners() {
+        for (Listener listener : mListeners) {
+            notifyListener(listener);
+        }
+    }
+
+    private void notifyListener(Listener listener) {
+        listener.onStateChange(this);
+    }
+
+    /** Prints the state of the sidecar. */
+    public void printState() {
+        StringBuilder sb =
+                new StringBuilder("SidecarFragment.setState(): Sidecar Class: ")
+                        .append(getClass().getCanonicalName());
+        sb.append(", State: ");
+        switch (mState) {
+            case SidecarFragment.State.INIT:
+                sb.append("State.INIT");
+                break;
+            case SidecarFragment.State.RUNNING:
+                sb.append("State.RUNNING");
+                break;
+            case SidecarFragment.State.SUCCESS:
+                sb.append("State.SUCCESS");
+                break;
+            case SidecarFragment.State.ERROR:
+                sb.append("State.ERROR");
+                break;
+            default:
+                sb.append(mState);
+                break;
+        }
+        switch (mSubstate) {
+            case SidecarFragment.Substate.UNUSED:
+                sb.append(", Substate.UNUSED");
+                break;
+            default:
+                sb.append(", ").append(mSubstate);
+                break;
+        }
+
+        Log.v(TAG, sb.toString());
+    }
+
+    @Override
+    public String toString() {
+        return String.format(
+                Locale.US,
+                "SidecarFragment[mState=%d, mSubstate=%d]: %s",
+                mState,
+                mSubstate,
+                super.toString());
+    }
+
+    /** The State of the sidecar status. */
+    public static final class States {
+        public static final States SUCCESS = States.create(State.SUCCESS, Substate.UNUSED);
+        public static final States ERROR = States.create(State.ERROR, Substate.UNUSED);
+
+        @State public final int state;
+        @Substate public final int substate;
+
+        /** Creates a new sidecar state. */
+        public static States create(@State int state, @Substate int substate) {
+            return new States(state, substate);
+        }
+
+        public States(@State int state, @Substate int substate) {
+            this.state = state;
+            this.substate = substate;
+        }
+
+        @Override
+        public boolean equals(Object o) {
+            if (!(o instanceof States)) {
+                return false;
+            }
+            States other = (States) o;
+            return this.state == other.state && this.substate == other.substate;
+        }
+
+        @Override
+        public int hashCode() {
+            return state * 31 + substate;
+        }
+    }
+}
diff --git a/src/com/android/settings/network/SubscriptionUtil.java b/src/com/android/settings/network/SubscriptionUtil.java
index e61cc36..ac21e12 100644
--- a/src/com/android/settings/network/SubscriptionUtil.java
+++ b/src/com/android/settings/network/SubscriptionUtil.java
@@ -21,6 +21,7 @@
 
 import static com.android.internal.util.CollectionUtils.emptyIfNull;
 
+import android.annotation.Nullable;
 import android.content.Context;
 import android.os.ParcelUuid;
 import android.telephony.SubscriptionInfo;
@@ -30,6 +31,8 @@
 
 import androidx.annotation.VisibleForTesting;
 
+import com.android.settings.network.telephony.ToggleSubscriptionDialogActivity;
+
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
@@ -278,6 +281,33 @@
         }
     }
 
+    /** Starts a dialog activity to handle SIM enabling/disabling. */
+    public static void startToggleSubscriptionDialogActivity(
+            Context context, int subId, boolean enable) {
+        context.startActivity(ToggleSubscriptionDialogActivity.getIntent(context, subId, enable));
+    }
+
+    /**
+     * Finds and returns a subscription with a specific subscription ID.
+     * @param subscriptionManager The ProxySubscriptionManager for accessing subscription
+     *                            information
+     * @param subId The id of subscription to be returned
+     * @return the {@code SubscriptionInfo} whose ID is {@code subId}. It returns null if the
+     * {@code subId} is {@code SubscriptionManager.INVALID_SUBSCRIPTION_ID} or no such
+     * {@code SubscriptionInfo} is found.
+     */
+    @Nullable
+    public static SubscriptionInfo getSubById(SubscriptionManager subscriptionManager, int subId) {
+        if (subId == SubscriptionManager.INVALID_SUBSCRIPTION_ID) {
+            return null;
+        }
+        return subscriptionManager
+                .getAllSubscriptionInfoList()
+                .stream()
+                .filter(subInfo -> subInfo.getSubscriptionId() == subId)
+                .findFirst()
+                .get();
+    }
 
     /**
      * Whether a subscription is visible to API caller. If it's a bundled opportunistic
diff --git a/src/com/android/settings/network/SwitchToEuiccSubscriptionSidecar.java b/src/com/android/settings/network/SwitchToEuiccSubscriptionSidecar.java
new file mode 100644
index 0000000..2eaa0ec
--- /dev/null
+++ b/src/com/android/settings/network/SwitchToEuiccSubscriptionSidecar.java
@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2020 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;
+
+import android.app.FragmentManager;
+import android.app.PendingIntent;
+
+import com.android.settings.SidecarFragment;
+import com.android.settings.network.telephony.EuiccOperationSidecar;
+
+/** A headless fragment encapsulating long-running eSIM enabling/disabling operations. */
+public class SwitchToEuiccSubscriptionSidecar extends EuiccOperationSidecar {
+    private static final String TAG = "SwitchToEuiccSubscriptionSidecar";
+    private static final String ACTION_SWITCH_TO_SUBSCRIPTION =
+            "com.android.settings.network.switchToSubscription";
+
+    private PendingIntent mCallbackIntent;
+
+    /** Returns a SwitchToEuiccSubscriptionSidecar sidecar instance. */
+    public static SwitchToEuiccSubscriptionSidecar get(FragmentManager fm) {
+        return SidecarFragment.get(
+                fm, TAG, SwitchToEuiccSubscriptionSidecar.class, null /* args */);
+    }
+
+    @Override
+    public String getReceiverAction() {
+        return ACTION_SWITCH_TO_SUBSCRIPTION;
+    }
+
+    /** Returns the pendingIntent of the eSIM operations. */
+    public PendingIntent getCallbackIntent() {
+        return mCallbackIntent;
+    }
+
+    /** Starts calling EuiccManager#switchToSubscription to enable/disable the eSIM profile. */
+    public void run(int subscriptionId) {
+        setState(State.RUNNING, Substate.UNUSED);
+        mCallbackIntent = createCallbackIntent();
+        mEuiccManager.switchToSubscription(subscriptionId, mCallbackIntent);
+    }
+}
diff --git a/src/com/android/settings/network/telephony/EuiccOperationSidecar.java b/src/com/android/settings/network/telephony/EuiccOperationSidecar.java
new file mode 100644
index 0000000..3bda9c5
--- /dev/null
+++ b/src/com/android/settings/network/telephony/EuiccOperationSidecar.java
@@ -0,0 +1,136 @@
+/*
+ * Copyright (C) 2020 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.Manifest;
+import android.app.PendingIntent;
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.os.Bundle;
+import android.os.SystemClock;
+import android.telephony.euicc.EuiccManager;
+import android.util.Log;
+
+import com.android.settings.SidecarFragment;
+
+import java.util.concurrent.atomic.AtomicInteger;
+
+/**
+ * The sidecar base class that an Euicc sidecar can extend from. The extended class should implement
+ * getReceiverAction() to return the action string for the broadcast receiver. The extended class
+ * should implement its own get() function to return an instance of that class, and implement the
+ * functional class like run() to actually trigger the function in EuiccManager.
+ */
+public abstract class EuiccOperationSidecar extends SidecarFragment {
+    private static final String TAG = "EuiccOperationSidecar";
+    private static final int REQUEST_CODE = 0;
+    private static final String EXTRA_OP_ID = "op_id";
+    private static AtomicInteger sCurrentOpId =
+            new AtomicInteger((int) SystemClock.elapsedRealtime());
+
+    protected EuiccManager mEuiccManager;
+
+    private int mResultCode;
+    private int mDetailedCode;
+    private Intent mResultIntent;
+    private int mOpId;
+
+    protected final BroadcastReceiver mReceiver =
+            new BroadcastReceiver() {
+                @Override
+                public void onReceive(Context context, Intent intent) {
+                    if (getReceiverAction().equals(intent.getAction())
+                            && mOpId == intent.getIntExtra(EXTRA_OP_ID, -1)) {
+                        mResultCode = getResultCode();
+                        /* TODO: This relies on our LUI and LPA to coexist, should think about how
+                        to generalize this further. */
+                        mDetailedCode =
+                                intent.getIntExtra(
+                                        EuiccManager.EXTRA_EMBEDDED_SUBSCRIPTION_DETAILED_CODE,
+                                        0 /* defaultValue*/);
+                        mResultIntent = intent;
+                        Log.i(
+                                TAG,
+                                String.format(
+                                        "Result code : %d; detailed code : %d",
+                                        mResultCode, mDetailedCode));
+                        onActionReceived();
+                    }
+                }
+            };
+
+    /**
+     * This is called when the broadcast action is received. The subclass may override this to
+     * perform different logic. The broadcast result code may be obtained with {@link
+     * #getResultCode()} and the Intent may be obtained with {@link #getResultIntent()}.
+     */
+    protected void onActionReceived() {
+        if (mResultCode == EuiccManager.EMBEDDED_SUBSCRIPTION_RESULT_OK) {
+            setState(State.SUCCESS, Substate.UNUSED);
+        } else {
+            setState(State.ERROR, mResultCode);
+        }
+    }
+
+    /**
+     * The extended class should implement it to return a string for the broadcast action. The class
+     * should be unique across all the child classes.
+     */
+    protected abstract String getReceiverAction();
+
+    protected PendingIntent createCallbackIntent() {
+        mOpId = sCurrentOpId.incrementAndGet();
+        Intent intent = new Intent(getReceiverAction());
+        intent.putExtra(EXTRA_OP_ID, mOpId);
+        return PendingIntent.getBroadcast(
+                getContext(), REQUEST_CODE, intent, PendingIntent.FLAG_CANCEL_CURRENT);
+    }
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        mEuiccManager = (EuiccManager) getContext().getSystemService(Context.EUICC_SERVICE);
+
+        getContext()
+                .getApplicationContext()
+                .registerReceiver(
+                        mReceiver,
+                        new IntentFilter(getReceiverAction()),
+                        Manifest.permission.WRITE_EMBEDDED_SUBSCRIPTIONS,
+                        null);
+    }
+
+    @Override
+    public void onDestroy() {
+        getContext().getApplicationContext().unregisterReceiver(mReceiver);
+        super.onDestroy();
+    }
+
+    public int getResultCode() {
+        return mResultCode;
+    }
+
+    public int getDetailedCode() {
+        return mDetailedCode;
+    }
+
+    public Intent getResultIntent() {
+        return mResultIntent;
+    }
+}
diff --git a/src/com/android/settings/network/telephony/SubscriptionActionDialogActivity.java b/src/com/android/settings/network/telephony/SubscriptionActionDialogActivity.java
new file mode 100644
index 0000000..491a776
--- /dev/null
+++ b/src/com/android/settings/network/telephony/SubscriptionActionDialogActivity.java
@@ -0,0 +1,94 @@
+/*
+ * Copyright (C) 2020 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.R;
+import android.app.Activity;
+import android.app.ProgressDialog;
+import android.content.DialogInterface;
+import android.os.Bundle;
+
+import androidx.appcompat.app.AlertDialog;
+
+/** The base class for subscription action dialogs */
+public class SubscriptionActionDialogActivity extends Activity {
+
+    private static final String TAG = "SubscriptionActionDialogActivity";
+
+    private ProgressDialog mProgressDialog;
+    private AlertDialog mErrorDialog;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+    }
+
+    /**
+     * Displays a loading dialog.
+     *
+     * @param message The string content should be displayed in the progress dialog.
+     */
+    protected void showProgressDialog(String message) {
+        if (mProgressDialog == null) {
+            mProgressDialog = ProgressDialog.show(this, null, message);
+            mProgressDialog.setCanceledOnTouchOutside(false);
+            mProgressDialog.setCancelable(false);
+        }
+        mProgressDialog.setMessage(message);
+        mProgressDialog.show();
+    }
+
+    /** Dismisses the loading dialog. */
+    protected void dismissProgressDialog() {
+        if (mProgressDialog != null) {
+            mProgressDialog.dismiss();
+        }
+    }
+
+    /**
+     * Displays an error dialog to indicate the subscription action failure.
+     *
+     * @param title The title of the error dialog.
+     * @param message The body text of the error dialog.
+     * @param positiveOnClickListener The callback function after users confirm with the error.
+     */
+    protected void showErrorDialog(
+            String title, String message, DialogInterface.OnClickListener positiveOnClickListener) {
+        if (mErrorDialog == null) {
+            mErrorDialog =
+                    new AlertDialog.Builder(this)
+                            .setTitle(title)
+                            .setMessage(message)
+                            .setPositiveButton(
+                                    R.string.ok,
+                                    (dialog, which) -> {
+                                        positiveOnClickListener.onClick(dialog, which);
+                                        dismissErrorDialog();
+                                    })
+                            .create();
+        }
+        mErrorDialog.setMessage(message);
+        mErrorDialog.show();
+    }
+
+    /** Dismisses the error dialog. */
+    protected void dismissErrorDialog() {
+        if (mErrorDialog != null) {
+            mErrorDialog.dismiss();
+        }
+    }
+}
diff --git a/src/com/android/settings/network/telephony/ToggleSubscriptionDialogActivity.java b/src/com/android/settings/network/telephony/ToggleSubscriptionDialogActivity.java
new file mode 100644
index 0000000..062c984
--- /dev/null
+++ b/src/com/android/settings/network/telephony/ToggleSubscriptionDialogActivity.java
@@ -0,0 +1,209 @@
+/*
+ * Copyright (C) 2020 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.content.Context;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.os.Bundle;
+import android.os.UserManager;
+import android.telephony.SubscriptionInfo;
+import android.telephony.SubscriptionManager;
+import android.text.TextUtils;
+import android.util.Log;
+
+import androidx.appcompat.app.AlertDialog;
+
+import com.android.settings.R;
+import com.android.settings.SidecarFragment;
+import com.android.settings.network.SubscriptionUtil;
+import com.android.settings.network.SwitchToEuiccSubscriptionSidecar;
+
+/** This dialog activity handles both eSIM and pSIM subscriptions enabling and disabling. */
+public class ToggleSubscriptionDialogActivity extends SubscriptionActionDialogActivity
+        implements SidecarFragment.Listener {
+
+    private static final String TAG = "ToggleSubscriptionDialogActivity";
+
+    private static final String ARG_SUB_ID = "sub_id";
+    private static final String ARG_enable = "enable";
+
+    /**
+     * Returns an intent of ToggleSubscriptionDialogActivity.
+     * @param context The context used to start the ToggleSubscriptionDialogActivity.
+     * @param subId The subscription ID of the subscription needs to be toggled.
+     * @param enable Whether the activity should enable or disable the subscription.
+     */
+    public static Intent getIntent(Context context, int subId, boolean enable) {
+        Intent intent = new Intent(context, ToggleSubscriptionDialogActivity.class);
+        intent.putExtra(ARG_SUB_ID, subId);
+        intent.putExtra(ARG_enable, enable);
+        return intent;
+    }
+
+    private SubscriptionManager mSubscriptionManager;
+    private SubscriptionInfo mSubInfo;
+    private SwitchToEuiccSubscriptionSidecar mSwitchToEuiccSubscriptionSidecar;
+    private AlertDialog mToggleSimConfirmDialog;
+    private boolean mEnable;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        Intent intent = getIntent();
+        int subId = intent.getIntExtra(ARG_SUB_ID, SubscriptionManager.INVALID_SUBSCRIPTION_ID);
+        mSubscriptionManager = getSystemService(SubscriptionManager.class);
+
+        UserManager userManager = getSystemService(UserManager.class);
+        if (!userManager.isAdminUser()) {
+            Log.e(TAG, "It is not the admin user. Unable to toggle subscription.");
+            finish();
+            return;
+        }
+
+        if (!SubscriptionManager.isUsableSubscriptionId(subId)) {
+            Log.e(TAG, "The subscription id is not usable.");
+            finish();
+            return;
+        }
+
+        mSubInfo = SubscriptionUtil.getSubById(mSubscriptionManager, subId);
+        mSwitchToEuiccSubscriptionSidecar =
+                SwitchToEuiccSubscriptionSidecar.get(getFragmentManager());
+        mEnable = intent.getBooleanExtra(ARG_enable, true);
+
+        if (mEnable) {
+            handleEnablingSubAction();
+        } else {
+            handleDisablingSubAction();
+        }
+    }
+
+    @Override
+    protected void onResume() {
+        super.onResume();
+        mSwitchToEuiccSubscriptionSidecar.addListener(this);
+    }
+
+    @Override
+    protected void onPause() {
+        mSwitchToEuiccSubscriptionSidecar.removeListener(this);
+        super.onPause();
+    }
+
+    @Override
+    public void onStateChange(SidecarFragment fragment) {
+        if (fragment == mSwitchToEuiccSubscriptionSidecar) {
+            handleSwitchToEuiccSubscriptionSidecarStateChange();
+        }
+    }
+
+    private void handleSwitchToEuiccSubscriptionSidecarStateChange() {
+        switch (mSwitchToEuiccSubscriptionSidecar.getState()) {
+            case SidecarFragment.State.SUCCESS:
+                Log.i(
+                        TAG,
+                        String.format(
+                                "Successfully %s the eSIM profile.",
+                                mEnable ? "enable" : "disable"));
+                mSwitchToEuiccSubscriptionSidecar.reset();
+                dismissProgressDialog();
+                finish();
+                break;
+            case SidecarFragment.State.ERROR:
+                Log.i(
+                        TAG,
+                        String.format(
+                                "Failed to %s the eSIM profile.", mEnable ? "enable" : "disable"));
+                mSwitchToEuiccSubscriptionSidecar.reset();
+                dismissProgressDialog();
+                showErrorDialog(
+                        getString(R.string.privileged_action_disable_fail_title),
+                        getString(R.string.privileged_action_disable_fail_text),
+                        (dialog, which) -> finish());
+                break;
+        }
+    }
+
+    /* Handles the enabling SIM action. */
+    private void handleEnablingSubAction() {
+        Log.i(TAG, "handleEnableSub");
+        // TODO(b/160819390): Implement enabling eSIM/pSIM profile.
+    }
+
+    /* Handles the disabling SIM action. */
+    private void handleDisablingSubAction() {
+        showToggleSimConfirmDialog(
+                (dialog, which) -> {
+                    if (mSubInfo.isEmbedded()) {
+                        Log.i(TAG, "Disabling the eSIM profile.");
+                        showProgressDialog(
+                                getString(R.string.privileged_action_disable_sub_dialog_progress));
+                        mSwitchToEuiccSubscriptionSidecar.run(
+                                SubscriptionManager.INVALID_SUBSCRIPTION_ID);
+                        return;
+                    }
+                    Log.i(TAG, "Disabling the pSIM profile.");
+                    // TODO(b/160819390): Implement disabling pSIM profile.
+                });
+    }
+
+    /* Displays the SIM toggling confirmation dialog. */
+    private void showToggleSimConfirmDialog(
+            DialogInterface.OnClickListener positiveOnClickListener) {
+        if (mToggleSimConfirmDialog == null) {
+            mToggleSimConfirmDialog =
+                    new AlertDialog.Builder(this)
+                            .setTitle(getToggleSimConfirmDialogTitle())
+                            .setPositiveButton(
+                                    R.string.yes,
+                                    (dialog, which) -> {
+                                        positiveOnClickListener.onClick(dialog, which);
+                                        dismissToggleSimConfirmDialog();
+                                    })
+                            .setNegativeButton(
+                                    R.string.cancel,
+                                    (dialog, which) -> {
+                                        dismissToggleSimConfirmDialog();
+                                        finish();
+                                    })
+                            .create();
+        }
+        mToggleSimConfirmDialog.show();
+    }
+
+    /* Dismisses the SIM toggling confirmation dialog. */
+    private void dismissToggleSimConfirmDialog() {
+        if (mToggleSimConfirmDialog != null) {
+            mToggleSimConfirmDialog.dismiss();
+        }
+    }
+
+    /* Returns the title of toggling SIM confirmation dialog. */
+    private String getToggleSimConfirmDialogTitle() {
+        if (mEnable) {
+            // TODO(b/160819390): Handle the case for enabling SIM.
+            return null;
+        }
+        return mSubInfo == null || TextUtils.isEmpty(mSubInfo.getDisplayName())
+                ? getString(R.string.privileged_action_disable_sub_dialog_title_without_carrier)
+                : getString(
+                        R.string.privileged_action_disable_sub_dialog_title,
+                        mSubInfo.getDisplayName());
+    }
+}