package com.android.settings.location;
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import static android.Manifest.permission.ACCESS_COARSE_LOCATION;
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import static android.Manifest.permission.ACCESS_FINE_LOCATION;
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import android.content.BroadcastReceiver;
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import android.content.Context;
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import android.content.Intent;
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import android.content.IntentFilter;
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import android.location.LocationManager;
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import android.os.UserHandle;
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import android.os.UserManager;
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import android.permission.PermissionControllerManager;
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import androidx.annotation.VisibleForTesting;
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import androidx.preference.Preference;
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import com.android.settings.R;
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import com.android.settings.Utils;
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import com.android.settings.core.BasePreferenceController;
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import com.android.settingslib.core.lifecycle.LifecycleObserver;
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import com.android.settingslib.core.lifecycle.events.OnStart;
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import com.android.settingslib.core.lifecycle.events.OnStop;
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import java.util.Arrays;
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import java.util.List;
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import java.util.concurrent.atomic.AtomicInteger;
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public class TopLevelLocationPreferenceController extends BasePreferenceController implements
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LifecycleObserver, OnStart, OnStop {
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private static final IntentFilter INTENT_FILTER_LOCATION_MODE_CHANGED =
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new IntentFilter(LocationManager.MODE_CHANGED_ACTION);
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private final LocationManager mLocationManager;
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/** Total number of apps that has location permission. */
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private int mNumTotal = -1;
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private int mNumTotalLoading = 0;
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private BroadcastReceiver mReceiver;
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private Preference mPreference;
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private AtomicInteger loadingInProgress = new AtomicInteger(0);
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public TopLevelLocationPreferenceController(Context context, String preferenceKey) {
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super(context, preferenceKey);
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mLocationManager = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
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}
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@Override
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public int getAvailabilityStatus() {
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return AVAILABLE;
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}
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@Override
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public CharSequence getSummary() {
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if (mLocationManager.isLocationEnabled()) {
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if (mNumTotal == -1) {
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return mContext.getString(R.string.location_settings_loading_app_permission_stats);
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}
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return mContext.getResources().getQuantityString(
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R.plurals.location_settings_summary_location_on,
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mNumTotal, mNumTotal);
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} else {
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return mContext.getString(R.string.location_settings_summary_location_off);
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}
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}
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@VisibleForTesting
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void setLocationAppCount(int numApps) {
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mNumTotal = numApps;
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refreshSummary(mPreference);
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}
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@Override
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public void updateState(Preference preference) {
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super.updateState(preference);
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mPreference = preference;
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refreshSummary(preference);
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// Bail out if location has been disabled, or there's another loading request in progress.
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if (!mLocationManager.isLocationEnabled() ||
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loadingInProgress.get() != 0) {
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return;
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}
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mNumTotalLoading = 0;
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// Retrieve a list of users inside the current user profile group.
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final List<UserHandle> users = mContext.getSystemService(
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UserManager.class).getUserProfiles();
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loadingInProgress.set(users.size());
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for (UserHandle user : users) {
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final Context userContext = Utils.createPackageContextAsUser(mContext,
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user.getIdentifier());
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if (userContext == null) {
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if (loadingInProgress.decrementAndGet() == 0) {
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setLocationAppCount(mNumTotalLoading);
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}
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continue;
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}
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final PermissionControllerManager permController =
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userContext.getSystemService(PermissionControllerManager.class);
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permController.countPermissionApps(
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Arrays.asList(ACCESS_FINE_LOCATION, ACCESS_COARSE_LOCATION),
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PermissionControllerManager.COUNT_ONLY_WHEN_GRANTED,
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(numApps) -> {
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mNumTotalLoading += numApps;
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if (loadingInProgress.decrementAndGet() == 0) {
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setLocationAppCount(mNumTotalLoading);
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}
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}, null);
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}
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}
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@Override
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public void onStart() {
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if (mReceiver == null) {
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mReceiver = new BroadcastReceiver() {
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@Override
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public void onReceive(Context context, Intent intent) {
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refreshLocationMode();
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}
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};
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}
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mContext.registerReceiver(mReceiver, INTENT_FILTER_LOCATION_MODE_CHANGED);
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refreshLocationMode();
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}
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@Override
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public void onStop() {
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mContext.unregisterReceiver(mReceiver);
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}
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private void refreshLocationMode() {
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if (mPreference != null) {
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updateState(mPreference);
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}
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}
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}
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