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Commit 361a48c8 authored by Rubin Xu's avatar Rubin Xu Committed by Android (Google) Code Review
Browse files

Merge "Force a garbage collection after lockscreen verification"

parents cff5d157 20aa6cd4

packages/SystemUI/src/com/android/keyguard/KeyguardSecurityContainer.java

+10 −0
Original line number Diff line number Diff line
@@ -46,6 +46,7 @@ import com.android.internal.logging.MetricsLogger; 
import com.android.internal.logging.nano.MetricsProto.MetricsEvent;

import com.android.internal.widget.LockPatternUtils;

import com.android.keyguard.KeyguardSecurityModel.SecurityMode;

import com.android.settingslib.utils.ThreadUtils;

import com.android.systemui.Dependency;

import com.android.systemui.R;

import com.android.systemui.SystemUIFactory;
@@ -617,6 +618,15 @@ public class KeyguardSecurityContainer extends FrameLayout implements KeyguardSe 
                StatsLog.write(StatsLog.KEYGUARD_BOUNCER_PASSWORD_ENTERED,

                    StatsLog.KEYGUARD_BOUNCER_PASSWORD_ENTERED__RESULT__SUCCESS);

                mLockPatternUtils.reportSuccessfulPasswordAttempt(userId);

                // Force a garbage collection in an attempt to erase any lockscreen password left in

                // memory. Do it asynchronously with a 5-sec delay to avoid making the keyguard

                // dismiss animation janky.

                ThreadUtils.postOnBackgroundThread(() -> {

                    try {

                        Thread.sleep(5000);

                    } catch (InterruptedException ignored) { }

                    Runtime.getRuntime().gc();

                });

            } else {

                StatsLog.write(StatsLog.KEYGUARD_BOUNCER_PASSWORD_ENTERED,

                    StatsLog.KEYGUARD_BOUNCER_PASSWORD_ENTERED__RESULT__FAILURE);