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Commit d5428106 authored by Jim Miller's avatar Jim Miller
Browse files

Disable hotword detection on low-memory devices 

Change-Id: If21f852af36a8f6dea17f3a87b22f39db3d1d6e8
parent 720959cc

packages/Keyguard/src/com/android/keyguard/KeyguardSelectorView.java

+8 −8
Original line number Diff line number Diff line
@@ -16,6 +16,7 @@ 
package com.android.keyguard;



import android.animation.ObjectAnimator;

import android.app.ActivityManager;

import android.app.PendingIntent;

import android.app.SearchManager;

import android.app.admin.DevicePolicyManager;
@@ -23,7 +24,6 @@ import android.content.ComponentName; 
import android.content.Context;

import android.content.Intent;

import android.graphics.drawable.Drawable;

import android.os.Build;

import android.os.Bundle;

import android.os.PowerManager;

import android.os.UserHandle;
@@ -41,15 +41,15 @@ import com.android.internal.telephony.IccCardConstants.State; 
import com.android.internal.widget.LockPatternUtils;

import com.android.internal.widget.multiwaveview.GlowPadView;

import com.android.internal.widget.multiwaveview.GlowPadView.OnTriggerListener;

import com.android.keyguard.KeyguardHostView.OnDismissAction;



public class KeyguardSelectorView extends LinearLayout implements KeyguardSecurityView {

    private static final boolean DEBUG = KeyguardHostView.DEBUG;

    private static final String TAG = "SecuritySelectorView";

    private static final String ASSIST_ICON_METADATA_NAME =

        "com.android.systemui.action_assist_icon";

    // Flag to enable/disable hotword detection on lock screen.

    private static final boolean FLAG_HOTWORD = true;



    // Don't enable hotword on limited-memory devices.

    private static final boolean ENABLE_HOTWORD = !ActivityManager.isLowRamDeviceStatic();



    // TODO: Fix this to be non-static.

    private static HotwordRecognizer sHotwordClient;
@@ -132,7 +132,7 @@ public class KeyguardSelectorView extends LinearLayout implements KeyguardSecuri 


        @Override

        public void onPhoneStateChanged(int phoneState) {

            if (FLAG_HOTWORD) {

            if (ENABLE_HOTWORD) {

                // We need to stop hotword detection when a call state is not idle anymore.

                if (phoneState != TelephonyManager.CALL_STATE_IDLE) {

                    if (DEBUG) Log.d(TAG, "Stopping due to call state not being idle");
@@ -183,7 +183,7 @@ public class KeyguardSelectorView extends LinearLayout implements KeyguardSecuri 
        mSecurityMessageDisplay = new KeyguardMessageArea.Helper(this);

        View bouncerFrameView = findViewById(R.id.keyguard_selector_view_frame);

        mBouncerFrame = bouncerFrameView.getBackground();

        if (FLAG_HOTWORD && sHotwordClient == null) {

        if (ENABLE_HOTWORD && sHotwordClient == null) {

            sHotwordClient = HotwordRecognizer.createHotwordRecognizer(getContext());

        }

    }
@@ -334,7 +334,7 @@ public class KeyguardSelectorView extends LinearLayout implements KeyguardSecuri 
     * it attempts to stop hotword detection if it's running.

     */

    private void maybeStartHotwordDetector() {

        if (FLAG_HOTWORD && sHotwordClient != null) {

        if (ENABLE_HOTWORD && sHotwordClient != null) {

            if (DEBUG) Log.d(TAG, "maybeStartHotwordDetector()");

            // Don't start it if the screen is off or not showing

            PowerManager powerManager = (PowerManager) getContext().getSystemService(
@@ -364,7 +364,7 @@ public class KeyguardSelectorView extends LinearLayout implements KeyguardSecuri 
     * Stop hotword detector if HOTWORDING_ENABLED is true.

     */

    private void maybeStopHotwordDetector() {

        if (FLAG_HOTWORD && sHotwordClient != null) {

        if (ENABLE_HOTWORD && sHotwordClient != null) {

            if (DEBUG) Log.d(TAG, "maybeStopHotwordDetector()");

            try {

                sHotwordClient.stopRecognition();