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Cleanup listener reference in SmartAutoRotate

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This will fix a memory leak caused by dangling SensorPrivacy listeners.

Test: opened/closed display and auto-rotate fragment and verified no
leaks in android studio profiler
Bug: 244382423

Change-Id: Ie2d070e796fa473e8f2794c9934c62edc4f7092c
This commit is contained in:
Abel Tesfaye
2022-09-01 02:35:07 +00:00
parent fd39906d62
commit febccc4990
4 changed files with 66 additions and 23 deletions
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26
src/com/android/settings/display/SmartAutoRotatePreferenceController.java
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@@ -19,6 +19,9 @@ package com.android.settings.display;
import static android.hardware.SensorPrivacyManager.Sensors.CAMERA;
import static android.provider.Settings.Secure.CAMERA_AUTOROTATE;
import static androidx.lifecycle.Lifecycle.Event.ON_START;
import static androidx.lifecycle.Lifecycle.Event.ON_STOP;
import static com.android.settings.display.SmartAutoRotateController.hasSufficientPermission;
import static com.android.settings.display.SmartAutoRotateController.isRotationResolverServiceAvailable;
@@ -33,6 +36,8 @@ import android.os.UserHandle;
import android.provider.Settings;
import android.text.TextUtils;
import androidx.lifecycle.LifecycleObserver;
import androidx.lifecycle.OnLifecycleEvent;
import androidx.preference.Preference;
import androidx.preference.PreferenceScreen;
@@ -42,15 +47,12 @@ import com.android.settings.R;
import com.android.settings.core.TogglePreferenceController;
import com.android.settings.overlay.FeatureFactory;
import com.android.settingslib.core.instrumentation.MetricsFeatureProvider;
import com.android.settingslib.core.lifecycle.LifecycleObserver;
import com.android.settingslib.core.lifecycle.events.OnStart;
import com.android.settingslib.core.lifecycle.events.OnStop;
/**
* SmartAutoRotatePreferenceController provides auto rotate summary in display settings
*/
public class SmartAutoRotatePreferenceController extends TogglePreferenceController
implements LifecycleObserver, OnStart, OnStop {
implements LifecycleObserver {
private final MetricsFeatureProvider mMetricsFeatureProvider;
private final SensorPrivacyManager mPrivacyManager;
@@ -62,14 +64,20 @@ public class SmartAutoRotatePreferenceController extends TogglePreferenceControl
}
};
private final SensorPrivacyManager.OnSensorPrivacyChangedListener mPrivacyChangedListener =
new SensorPrivacyManager.OnSensorPrivacyChangedListener() {
@Override
public void onSensorPrivacyChanged(int sensor, boolean enabled) {
refreshSummary(mPreference);
}
};
private RotationPolicy.RotationPolicyListener mRotationPolicyListener;
private Preference mPreference;
public SmartAutoRotatePreferenceController(Context context, String preferenceKey) {
super(context, preferenceKey);
mPrivacyManager = SensorPrivacyManager.getInstance(context);
mPrivacyManager
.addSensorPrivacyListener(CAMERA, (sensor, enabled) -> refreshSummary(mPreference));
mPowerManager = context.getSystemService(PowerManager.class);
mMetricsFeatureProvider = FeatureFactory.getFactory(context).getMetricsFeatureProvider();
}
@@ -108,7 +116,7 @@ public class SmartAutoRotatePreferenceController extends TogglePreferenceControl
refreshSummary(mPreference);
}
@Override
@OnLifecycleEvent(ON_START)
public void onStart() {
mContext.registerReceiver(mReceiver,
new IntentFilter(PowerManager.ACTION_POWER_SAVE_MODE_CHANGED));
@@ -124,15 +132,17 @@ public class SmartAutoRotatePreferenceController extends TogglePreferenceControl
}
RotationPolicy.registerRotationPolicyListener(mContext,
mRotationPolicyListener);
mPrivacyManager.addSensorPrivacyListener(CAMERA, mPrivacyChangedListener);
}
@Override
@OnLifecycleEvent(ON_STOP)
public void onStop() {
mContext.unregisterReceiver(mReceiver);
if (mRotationPolicyListener != null) {
RotationPolicy.unregisterRotationPolicyListener(mContext,
mRotationPolicyListener);
}
mPrivacyManager.removeSensorPrivacyListener(CAMERA, mPrivacyChangedListener);
}
/**