Fix memory leaks in Settings

Bug: 80507279
Test: inspected hprof before and after fix
Change-Id: I6ea2925695deb6261263649e858484e1667ec522

src/com/android/settings/fuelgauge/BatteryUtils.java

@@ -24,18 +24,12 @@ import android.content.pm.PackageInfo;
 import android.content.pm.PackageManager;
 import android.content.pm.ResolveInfo;
 import android.os.BatteryStats;
-import android.os.Bundle;
 import android.os.Build;
+import android.os.Bundle;
 import android.os.Process;
 import android.os.SystemClock;
 import android.os.UserHandle;
 import android.os.UserManager;
-import androidx.annotation.IntDef;
-import androidx.annotation.Nullable;
-import androidx.annotation.StringRes;
-import androidx.annotation.VisibleForTesting;
-import androidx.annotation.WorkerThread;
-import android.text.TextUtils;
 import android.text.format.DateUtils;
 import android.util.Log;
 import android.util.SparseLongArray;
@@ -48,7 +42,6 @@ import com.android.settings.fuelgauge.anomaly.Anomaly;
 import com.android.settings.fuelgauge.batterytip.AnomalyInfo;
 import com.android.settings.fuelgauge.batterytip.StatsManagerConfig;
 import com.android.settings.overlay.FeatureFactory;
-
 import com.android.settingslib.fuelgauge.PowerWhitelistBackend;
 import com.android.settingslib.utils.PowerUtil;
 
@@ -58,6 +51,12 @@ import java.util.Collections;
 import java.util.Comparator;
 import java.util.List;
 
+import androidx.annotation.IntDef;
+import androidx.annotation.Nullable;
+import androidx.annotation.StringRes;
+import androidx.annotation.VisibleForTesting;
+import androidx.annotation.WorkerThread;
+
 /**
  * Utils for battery operation
  */
@@ -93,14 +92,14 @@ public class BatteryUtils {
 
     public static BatteryUtils getInstance(Context context) {
         if (sInstance == null || sInstance.isDataCorrupted()) {
-            sInstance = new BatteryUtils(context);
+            sInstance = new BatteryUtils(context.getApplicationContext());
         }
         return sInstance;
     }
 
     @VisibleForTesting
     BatteryUtils(Context context) {
-        mContext = context.getApplicationContext();
+        mContext = context;
         mPackageManager = context.getPackageManager();
         mAppOpsManager = (AppOpsManager) context.getSystemService(Context.APP_OPS_SERVICE);
         mPowerUsageFeatureProvider = FeatureFactory.getFactory(

src/com/android/settings/overlay/FeatureFactoryImpl.java

@@ -21,7 +21,6 @@ import android.app.admin.DevicePolicyManager;
 import android.content.Context;
 import android.net.ConnectivityManager;
 import android.os.UserManager;
-import androidx.annotation.Keep;
 
 import com.android.settings.accounts.AccountFeatureProvider;
 import com.android.settings.accounts.AccountFeatureProviderImpl;
@@ -54,6 +53,8 @@ import com.android.settings.users.UserFeatureProvider;
 import com.android.settings.users.UserFeatureProviderImpl;
 import com.android.settingslib.core.instrumentation.MetricsFeatureProvider;
 
+import androidx.annotation.Keep;
+
 /**
  * {@link FeatureFactory} implementation for AOSP Settings.
  */
@@ -93,7 +94,8 @@ public class FeatureFactoryImpl extends FeatureFactory {
     @Override
     public PowerUsageFeatureProvider getPowerUsageFeatureProvider(Context context) {
         if (mPowerUsageFeatureProvider == null) {
-            mPowerUsageFeatureProvider = new PowerUsageFeatureProviderImpl(context);
+            mPowerUsageFeatureProvider = new PowerUsageFeatureProviderImpl(
+                    context.getApplicationContext());
         }
         return mPowerUsageFeatureProvider;
     }
@@ -101,7 +103,8 @@ public class FeatureFactoryImpl extends FeatureFactory {
     @Override
     public DashboardFeatureProvider getDashboardFeatureProvider(Context context) {
         if (mDashboardFeatureProvider == null) {
-            mDashboardFeatureProvider = new DashboardFeatureProviderImpl(context);
+            mDashboardFeatureProvider = new DashboardFeatureProviderImpl(
+                    context.getApplicationContext());
         }
         return mDashboardFeatureProvider;
     }
@@ -117,10 +120,11 @@ public class FeatureFactoryImpl extends FeatureFactory {
     @Override
     public ApplicationFeatureProvider getApplicationFeatureProvider(Context context) {
         if (mApplicationFeatureProvider == null) {
-            mApplicationFeatureProvider = new ApplicationFeatureProviderImpl(context,
-                    context.getPackageManager(),
+            final Context appContext = context.getApplicationContext();
+            mApplicationFeatureProvider = new ApplicationFeatureProviderImpl(appContext,
+                    appContext.getPackageManager(),
                     AppGlobals.getPackageManager(),
-                    (DevicePolicyManager) context
+                    (DevicePolicyManager) appContext
                             .getSystemService(Context.DEVICE_POLICY_SERVICE));
         }
         return mApplicationFeatureProvider;
@@ -137,12 +141,14 @@ public class FeatureFactoryImpl extends FeatureFactory {
     @Override
     public EnterprisePrivacyFeatureProvider getEnterprisePrivacyFeatureProvider(Context context) {
         if (mEnterprisePrivacyFeatureProvider == null) {
-            mEnterprisePrivacyFeatureProvider = new EnterprisePrivacyFeatureProviderImpl(context,
-                    (DevicePolicyManager) context.getSystemService(Context.DEVICE_POLICY_SERVICE),
-                    context.getPackageManager(),
-                    UserManager.get(context),
-                    (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE),
-                    context.getResources());
+            final Context appContext = context.getApplicationContext();
+            mEnterprisePrivacyFeatureProvider = new EnterprisePrivacyFeatureProviderImpl(appContext,
+                    (DevicePolicyManager) appContext.getSystemService(
+                            Context.DEVICE_POLICY_SERVICE),
+                    appContext.getPackageManager(),
+                    UserManager.get(appContext),
+                    (ConnectivityManager) appContext.getSystemService(Context.CONNECTIVITY_SERVICE),
+                    appContext.getResources());
         }
         return mEnterprisePrivacyFeatureProvider;
     }
@@ -171,7 +177,8 @@ public class FeatureFactoryImpl extends FeatureFactory {
     @Override
     public SuggestionFeatureProvider getSuggestionFeatureProvider(Context context) {
         if (mSuggestionFeatureProvider == null) {
-            mSuggestionFeatureProvider = new SuggestionFeatureProviderImpl(context);
+            mSuggestionFeatureProvider = new SuggestionFeatureProviderImpl(
+                    context.getApplicationContext());
         }
         return mSuggestionFeatureProvider;
     }
@@ -179,7 +186,7 @@ public class FeatureFactoryImpl extends FeatureFactory {
     @Override
     public UserFeatureProvider getUserFeatureProvider(Context context) {
         if (mUserFeatureProvider == null) {
-            mUserFeatureProvider = new UserFeatureProviderImpl(context);
+            mUserFeatureProvider = new UserFeatureProviderImpl(context.getApplicationContext());
         }
         return mUserFeatureProvider;
     }

src/com/android/settings/sound/AudioSwitchPreferenceController.java

@@ -37,9 +37,6 @@ import android.media.MediaRouter;
 import android.media.MediaRouter.Callback;
 import android.os.Handler;
 import android.os.Looper;
-import androidx.preference.ListPreference;
-import androidx.preference.Preference;
-import androidx.preference.PreferenceScreen;
 import android.text.TextUtils;
 import android.util.FeatureFlagUtils;
 import android.util.Log;
@@ -64,6 +61,10 @@ import java.util.List;
 import java.util.concurrent.ExecutionException;
 import java.util.concurrent.FutureTask;
 
+import androidx.preference.ListPreference;
+import androidx.preference.Preference;
+import androidx.preference.PreferenceScreen;
+
 /**
  * Abstract class for audio switcher controller to notify subclass
  * updating the current status of switcher entry. Subclasses must overwrite
@@ -74,7 +75,7 @@ public abstract class AudioSwitchPreferenceController extends BasePreferenceCont
         implements Preference.OnPreferenceChangeListener, BluetoothCallback,
         LifecycleObserver, OnStart, OnStop {
 
-    private static final String TAG = "AudioSwitchPreferenceController";
+    private static final String TAG = "AudioSwitchPrefCtrl";
     private static final int INVALID_INDEX = -1;
 
     protected final List<BluetoothDevice> mConnectedDevices;

tests/robotests/src/com/android/settings/fuelgauge/BackgroundActivityPreferenceControllerTest.java

@@ -32,7 +32,6 @@ import android.content.pm.ApplicationInfo;
 import android.content.pm.PackageManager;
 import android.os.Build;
 import android.os.UserManager;
-import androidx.preference.Preference;
 
 import com.android.settings.R;
 import com.android.settings.testutils.FakeFeatureFactory;
@@ -50,6 +49,8 @@ import org.robolectric.RobolectricTestRunner;
 import org.robolectric.RuntimeEnvironment;
 import org.robolectric.annotation.Config;
 
+import androidx.preference.Preference;
+
 @RunWith(RobolectricTestRunner.class)
 @Config(shadows = {SettingsShadowResources.SettingsShadowTheme.class, ShadowFragment.class})
 public class BackgroundActivityPreferenceControllerTest {
@@ -89,6 +90,7 @@ public class BackgroundActivityPreferenceControllerTest {
 
         mShadowContext = RuntimeEnvironment.application;
         FakeFeatureFactory.setupForTest();
+        when(mContext.getApplicationContext()).thenReturn(mContext);
         when(mContext.getPackageManager()).thenReturn(mPackageManager);
         when(mContext.getSystemService(Context.APP_OPS_SERVICE)).thenReturn(mAppOpsManager);
         when(mContext.getSystemService(Context.USER_SERVICE)).thenReturn(mUserManager);