Incorporate Bayes into Falsing.

This uses the HistoryTracker on pin-based input to determine if a
tap outside of an intended region is a false touch, retracting the
pin input if we believe pocket dialing is occuring.

To do this, the cl properly integrates the HistoryTracker into
falsing, at least for single taps.

Most importantly, HistoryTracker#falsingBelief now return 0.5 when
it is unsure if a tap is false or not, and tends towards 0 when it
believes it's valid and 1 when it believes it's false.
HistoryTracker#falsingConfidence remains unchanged.

Test: atest SystemUITests && manual
Bug: 172655679
Change-Id: Ie771b1bf8ac564af7ffb68e190772fff5c562e89

1 files changed, 4 insertions, 3 deletions

diff --git a/packages/SystemUI/src/com/android/keyguard/KeyguardSimPukViewController.java b/packages/SystemUI/src/com/android/keyguard/KeyguardSimPukViewController.java
index 8fff34278216..3895b6829614 100644
--- a/packages/SystemUI/src/com/android/keyguard/KeyguardSimPukViewController.java
+++ b/packages/SystemUI/src/com/android/keyguard/KeyguardSimPukViewController.java
@@ -40,6 +40,7 @@ import com.android.keyguard.KeyguardSecurityModel.SecurityMode;
 import com.android.systemui.Dependency;
 import com.android.systemui.R;
 import com.android.systemui.classifier.FalsingCollector;
+import com.android.systemui.classifier.SingleTapClassifier;
 
 public class KeyguardSimPukViewController
         extends KeyguardPinBasedInputViewController<KeyguardSimPukView> {
@@ -85,11 +86,11 @@ public class KeyguardSimPukViewController
             KeyguardSecurityCallback keyguardSecurityCallback,
             KeyguardMessageAreaController.Factory messageAreaControllerFactory,
             LatencyTracker latencyTracker, LiftToActivateListener liftToActivateListener,
-            TelephonyManager telephonyManager,
-            FalsingCollector falsingCollector, boolean isNewLayoutEnabled) {
+            TelephonyManager telephonyManager, FalsingCollector falsingCollector,
+            SingleTapClassifier singleTapClassifier, boolean isNewLayoutEnabled) {
         super(view, keyguardUpdateMonitor, securityMode, lockPatternUtils, keyguardSecurityCallback,
                 messageAreaControllerFactory, latencyTracker, liftToActivateListener,
-                falsingCollector);
+                falsingCollector, singleTapClassifier);
         mKeyguardUpdateMonitor = keyguardUpdateMonitor;
         mTelephonyManager = telephonyManager;
         mSimImageView = mView.findViewById(R.id.keyguard_sim);